CA2187796C - Arrangement and method for transmitting and receiving video signals - Google Patents

Arrangement and method for transmitting and receiving video signals Download PDF

Info

Publication number
CA2187796C
CA2187796C CA2187796A CA2187796A CA2187796C CA 2187796 C CA2187796 C CA 2187796C CA 2187796 A CA2187796 A CA 2187796A CA 2187796 A CA2187796 A CA 2187796A CA 2187796 C CA2187796 C CA 2187796C
Authority
CA
Canada
Prior art keywords
picture
sub
mosaic
video signal
pictures
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CA2187796A
Other languages
French (fr)
Other versions
CA2187796A1 (en
Inventor
Jurgen Fritz Rosengren
Ronald Wilhelm Johan Jozef Saeijs
Joanne Henriette Desiree Monique Westerink
Michiel Jacob Van Der Korst
Guy James Roberts
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8216808&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2187796(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of CA2187796A1 publication Critical patent/CA2187796A1/en
Application granted granted Critical
Publication of CA2187796C publication Critical patent/CA2187796C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/88—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving rearrangement of data among different coding units, e.g. shuffling, interleaving, scrambling or permutation of pixel data or permutation of transform coefficient data among different blocks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4347—Demultiplexing of several video streams
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/007—Transform coding, e.g. discrete cosine transform
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234363—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the spatial resolution, e.g. for clients with a lower screen resolution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234381—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the temporal resolution, e.g. decreasing the frame rate by frame skipping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/23439—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements for generating different versions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2365—Multiplexing of several video streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
    • H04N21/4316—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4348—Demultiplexing of additional data and video streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control

Abstract

MPEG2- based transmission systems transmit a large number of digital television programs in a single physical channel. Disclosed herein is a "Channel Navigation System" which allows a user to get an overview of the digital programs provided, and to easily select a desired program. The method of the invention includes the transmission (in a separate program of a transport stream) of a video stream representing a mosaic picture, the sub-pictures of which are miniature versions of the video stream of other programs in that transport stream. The method further includes the transmission of information which links the position of each sub-picture within the mosaic picture with the program number from which the sub-picture is derived. The user selects a desired program by merely "pointing and clicking" its miniature version in the mosaic picture.

Description

PH . 6~ r~ Cl ¦ PCT/!~j95 /0~255 1 9 ~~4~ ~99~
- 19.04. 1996 Al ~ ~e . and method for ~ iLlillg and receiving video signals.
FIELD OF THE INVENTION
The invention relates to a transmitter and method for lir ~ video signals. The invention also relates to a receiYer and a method for receiving video signals.

It is known that mosaic pictures comprising a plurality of sub-pictures are transmitted in cable networks. Each sub-picture renders a miniature version of an available television program. The mosaic video signal allows a user to obtain an overview of all receivable television programs. However, in order to select a desired television program, the 10 user must know the relevant channel number or associated program number, and enter said number via a remote control device.
OBJECT AND SUMMARY OF THE INVENTION
It is, inter alia, an object of the invention to improve the known 15 d~ .IL and, in particular, to provide a transmitter for ~ video signals that assists the user in easily selecting a desired program from the large number of available programs.
According to a first aspect of the invention, this object is achieved by a television transmitter for (l~l,~..lill;"~ a plurality of video signals via a common channel, each 20 video signal having a program number, the transmitter being adapted to generate a mosaic video signal comprising a plurality of sub-pictures, each sub-picture .~.~ g one of said plurality of video signals, generate data linking the position of each sub-picture on a display screen with the program number of the associated video signal, and transmit said mosaic video signa~ and linking data through said common channel.
A Cull~ l 'in~ television receiver for receiving and displaying the signals from said transmitter comprises a disp~ay screen, a pointing device, means for receiving the linking data and decoding the program number of a video signal .~)~t~ cl by the position of the sub-picture being displayed and pointed at by the pointing device, and adapted to select said video signal for display.
~M~NDFn SHEET . ;.
.. .. . . ... . . . . . .. ... _ . _ _ _ _ _ _ _ PHN 15.26v 2 1 87796 T~,as~A~edish;PvtvAtpOpiica~on ¦ PCI/~ 95 /00255 2 - 19.04. 1996 The invention thus allows a user to select a desired program by simply "pointing and clicking" the ~u~ yulldill~ sub-picture on the mosaic screen.
It should be noted that receiYers are known per se which allow the viewer to easily select a desired program by pointing and clicking an associated sub-picture on a 5 mosaic screen. Japanese patent application JP-A 1-246972 discloses a television receiver which creates the mosaic picture by sweeping the tuner along a plurality of video channels and displaying small images for said channels ~i,...,l~ v,,~ly as a mosaic picture. European patent application EP-A-0 494 752 discloses a security system comprising a plurality of video sources and an effect module to which the sources are connected and which composes the 10 mosaic screen. The selected source is displayed as a further (larger) image on the mosaic screen. In these prior art receivers, the relation between the position of a sub-picture and the associated video program is known because the receivers create the mosaic picture by themselves. However, the means therefor are .;v~lu~ l, require a huge amount of (often digital) memory, and render such a receiver cu.~ alvly more expensive.
Further aspects of the invention relate more specifically to ~r~ncnniccifm and reception of digital video signals. A known method of Ll~ il-v digital video signals is disclosed in "ISO/IEC CD 13818-1: Inf~-rm~ n technology - Generic coding of moving pictures and associated audio r ~ - - Part 1: Systems", 1993-12-01, also known as the MPEG2 systems standard. The known method comprises the steps of encoding said video 20 signals into respective elementary bitstreams, and l~ l ^ i--C said elementary bitstreams into a transport stream. The known MPEG2 ~ ." system is a packet-based multiplexsystem. Each transport packet belongs to one elementary stream of video, audio or data. One or more elementary streams make up a program. An MPEG2 transport stream ,Ullipli:~iUg a plurality of programs is transmitted through a single physical channel.
According to a second aspect of the invention, a television transmitter for ~r~n~mittinV a plurality of digital video signals, each signal being transform coded into a respective elementary bitstream, comprises means for composing a mosaic picture comprising a sub-picture, each sub-picture It:,ul~ vllLil~y, one of said plurality of video signals, means for encoding said mosaic picture as a further elementary bitstream, means for lr,~ g said 30 further elementary bitstream, and means for i v data linking the position of each sub-picture within the mosaic picture with the associated video signal.
The sub-pictures within the mosaic picture are not necessarily real-time miniature versions of the associated video program. In an attractive tl..l....lil. .,1 of the invention, at least one of the sub-pictures is vll~a~ iiv of the television program conveyed Al~.ENDtD SHEE~
.. .. . .. .. . . . . . . . . . _ _ _ _ PHN 15.268 PCT/ ~3 9 5 / 0 0 2 5 5 I~rh3 Swedish Pat~3nt Office _ ~CT 11 l~f~ I I~Uul lal Application ~ Uf -04- .~gYb 2a 21 87796 19.04.1996 by the associated video signal. It is thereby achieved that a user can clearly recognize a program on the mosaic picture, even if the "real" program is t~ JUl~il~ interrupted by e.g.
a TV CUIl~m~ l. The ~u.,c",ul"li~ television receiver comprises means for deriving the selected sub-picture from the mosaic signal and means for ~il,.,.ll",. u.~ly displaying the selected sub-picture and the associated video signal for a l~lcd~ h.~l period of time after selecting said video signal. This prevents confusion as to whether or not a program is indeed the selected program if, at the time of selection, a commercial is transmitted.
In a further ~ '.o-li,., - the sub-pictures are ul~ lu~ iic of respective programs scheduled for later 1~ .. and the linking data includes scheduling data for ~JI`O~ICIIIIIIill~ the receiver to ~ m~tir~lly display or record said scheduled programs. A
television receiver can now easily be Illuf~lail~ to ~ f~ tir~lly display or record a desired program by "pointing and clicking" the associated sub-picture on the mosaic screen.

A~ENDED SHE--w0 9s/28794 2 1 ~ 7 7 q 6 1 ~1 ~

Usually, an elementary MPEG video bitstream includes '~, encoded and l~lcdh li~ly encoded pictures , ~ transform-coded blocks having DC~^ fr;. ~ In an ~ L ' of the trqncn :~Pr, the means for composing the mosaic picture comprises means for selecting the DC I r ' of ~ encoded pictures 5 to constitute said l The mosaic picture can thus be derived from the encoded video signals by using a simple MPEG decoder. The mosaic picture is both spatiaUy and temporally reduced and re~uires only a low bitrate for ~ -It is to be noted that European Patent Application EP-A O 598 576 proposes a television signal i and reception system with S~l~. display for 10 tur~ing operations. However, EP-A O 5~ 576 was published after the priority date of this patent q~lirqtin-BRIEF DESCRI~ION OF THE DRAWINGS
Figs.l~ show L ~ - '- ' of a transmitter according to the invention.
Fig.5 shows a flowchart illustrating the operation of a decoder shown in Fig.3.
Figs.~7 show; ' - ' of a television receiver according to the invention.
Fig.8 shows a flowchart illustrating the operation of the television 20 receivers shown in Flgs.6-7.
DESCRIPTION OF EMBODIMENTS
Fig.l shows a first ~ 1....1;. ~ of a transmitter according to the invention. The transmitter may be located at the head-end of a cable network. The 25 transmitter receives a plurality of video signals by respective satellite, terrestrial or cable receivers (not shown). In the Figure, only three video signals Vl, V2, and V3 are shown.
They are app]ied to MPEG2 video encoders 2, 3 and 4, ~ . Said encoders are adapted to encode and compress the respective video encoders according to "ISOllEC CD
13818-2: T..r.... -'. - ~ technology - Generic coding of moving pictures and associated audio 30 . r '- - Part 2: Videon, 1993-12-01, also referred to as the MPEG2 video coding st~ndard. Their output signals are cl~.. ~ y bitstreams El, E2 and E3, 1~ ~ti~ . The video signals are further applied to a composing circuit 1 which comprises, for each video signal, a horizontal and vertical ~ 10, 11 and 12. Each ' generates a small-size sub-picture of the respective video picture. The sub-pictures are stored in wo 95128794 2 1 8 7 7 9 6 P~ -respective sections of a picture memory 13 under control of a control circuit 14 such that 4*4 or 5~5 s~b-pictures occupy a television screen. Control circuit 14 is further adapted to read-out the picture memory 13 so as to obtain a mosaic video signal Vm. Said signal Vm is applied to a further MPEG2 encoder 5 for encoding into a further; ' y bitstream Em.
5 In the ' ' shown, the dementary bitstreams V1, V2, V3 and Vm are ~' ' by a 'i,' 6 into a transport stream TS. However, the elementary stream Vm may also be ' as a separate transport stream. Control circuit 14 is further adapted to generate linking data L and to add said linking data to transport stream TS.
Fig.2 shows a second ~ ~ ' of the i This 10 differs from the first in that the video signals Vl..V3 are now locally generated by a respective source (not shown). In addition, each source generates an auxiliary picture, for example a still picture, which is ~ '; of the program. As an example, video signal V1 conveys the Oprah Winfrey show, whereas auxiliary signal Vla is a still picture showing Oprah Winfrey. This ~ ' ' is a.l~ in that the mosaic screen at the receiver 15 end clearly indicates that the Oprah Winfrey show is being broadcast, even if the program is ~, interrupted by a TV ' Fig.3 shows a third ' ' of the i In this ~ L ' t, tbe video signals to be i ' are assumed to be already available as respective MPEG
dementary streams El..E3. They are read from a r~ceived transport stream TS1 by a 20 ~ i,' 7 and directly applied to "i, ' 6. They are further applied to composing circuit 1 which now comprises means 16, 17, 18 for decoding the e' y str~ams andgenerating the respective sub-picture. Said means may take the form of MPEG decoders in with the MPEG2 video standard. However, "simpleN MPEG decoders may be used instead, as will now be explained.
As is generally known in the field of video encoding, each elementary stream El..E3 includes 'y encoded pictures (I-pictures) and ~ . ly encoded pictures (P and B-pictures). The encoded pictures comprise blocks of ~--~ .
I~r g spectral . , '~ of the video signal. The DC coefficient of ~, encoded blocks represents the average pixel value of an 8~8 pixd block. This applies in 30 particular to all blocks of the l-pictures. The operation of NsimpleN MPEG de~oders 16..18 will now be educidated with reference to a flowchart shown in Fig.5. In a first step 30, the de~oder dliscards all data until a picture start code is ~ ' Data defining a picture is now being received. In a step 31, the picture coding type P ' ' in the picture header is decoded. In a step 32, it is ascertained whether said picture coding type indicates ~ ~1796 S
that an I-picture is being received. If that is not the case, the decoder returns to step 30 to await the ne~ct picture start code. If the picture is an I-picture, the decoder ~u~
awaits the reception of a slice header (step 33) and the reception of a ...~.ul,lu.~ (step 34).
In a step 35, the decoder decodes and outputs the DC coefficient of a 5 block within the current ' ' In a stPp 36, the ! ' ~, ' C~~rr ~' ' of a block up to the detection of an end-of-block code are discarded. In a step 37, it is ascertained whether a-a blocks of a ' ' have been processPd. As long as that is not the case, the decoder returns to step 35. In a step 38, it is 5~ npd whether all .., 1 "Jl,l~, L` of a slice have be~n processPd. As long as that is not the case, the decoder returns to step 34. FinaUy, it is 10 ~ ' in a step 39 whether aU slices of the picture have been processed. As long as that is not the case, the decoder returns to step 33. If all slices have been processed, the decoder returns to step 30 in order to sParch the next I-picture in the bitstream.
The decoder thus extracts the DC ~ of I-pictures from the input bitstream. Said ~ r;: ,~t` are subjected to inverse . and then stored in memory 15 14 (sPe Fig.3). Edch DC coefficient represents the average luminance or value of an 8~8 pixel block and constitutes one pixel of a sub-picture. Decoders 16..18 are simple because motion , circuitry is redundant, and because ~idbl~ l~.oal decoders merely ne~d to decode a restrictPd set of ~idbL~ ' , ' . ' . Moreover, as the sub-pictures are both spatiaUy and temporally reducPd, the of the mosaic signal Em2û re~uires a very low bitrate.
Fig.4 shows a fourth ~ _b~ ' of the t~ This ~ ' differs from the third in that the received trarlsport strPam TS1 includes, for each elementary signal E1..E3, a low-bitrate auxiliary elementary strPam Ela..E3a conveying a lu.. .~
version of the associated elementary str_am. More ~li~ula~ly~ each auxiliary elementary 25 stream may comprise the DC c~- rr- ~ of I-pictures only, obtained in a manner as already explained with reference to Fig.5. In that case, the auxiliary str_ams Ela..E3a are both spatiaUy and temporally reduced versions of the associated main signal. The low-bitrate stream may also convey a still picture which is . I - - ~. t. . ;`l ;' of tbe progrdm.
A method of: " the linking data in the transport strPam from 30 the transmitter wiU now be given. As disclosed in the MPEG2 systems standard, transport packets are labelled with a packet identifier (PID), which identifies the elementary stream the packet belongs to. One or more elementary streams make up a program having a program number. A typical program may contain three elementary streams: audio, video and data.
The joining of several e I.,.~ streams into a program is performed by generating an .

w0 9512L~794 2 l 8 7 7 ~ ~. 5.

entry in a progr~un association table which is L-~l~.l.i.t~l in transport packets having a ' PID. The prograun association table contains, for each program, its program number and the PID of transport packets carrying a program map table. The prograun map tab~e includes a list of the elementary streams making up the program, and their respeetive 5 PlDs. The program map table may further contain other r - about each elementary stream. Said; r", ;.,., is i ' in the form of so-called IP~iprlr~
In an ~ l ' of the invention, the mosaic picture is transmitted as a program . . ~ the elementary strPam Em and, if desired, an audio elementary stream as well. Tne associated linking data is i ' by using a descriptor in the program table lO as mentioned above. The descriptor is designated mosaic_picture_descriptor. An example of relevant syntax in the program map table is shown in the following Table I:
mosaie pieture des.,,i,ulùr dt~ JIul tag 8 uimsbf desc,iuLur length 8 uimsbf horizontal p~,liliun;.,g 4 uimsbf vertieal pa~ iùl,;.lg 4 uimsbf for (i=O;i<n;i++){
program number 16 uimsbf Table I
Herein, the parameters descriptor_tag and descriptor_length specify the type and length, lc~Li~ , of the deseriptor. The parameters horizontal I ~ and vcrtieal~ ~ indicate how many sub-pictures are ' ' in the mosaic l5 pieture. The for-clause in the syntax indieates whieh program number is assigned to each sub-pieture, ~e sub-pietures being ordered, for example, from left to right and from top to bottom.
Fig.6 shows a first ~ ~ ' of a television receiver according to the inventio~. The receiver comprises a ~' "i' 40, an MPEG audio de~oder 41, a 20 1 ' ' 42, an MPEG video de~oder 43, a display screen 44, a IllI~,lUIJllJ~.Wi~Ul 4~ and a remote eontrol deviee 46. The d ,~ 40 receivcs one or more MPEG2 transport streams TS, each, , ~ a plurality of digital television programs. In a manner known per se, the Illh~lU~lU~..i~Ol 4~ applics to said ~ ' paeket identifiers PID identifying the eler~entary audio stream A amd the elementary video stream V of a desircd program, as 25 well as the PID of the packets comprising linking data L. The selected audio stream A is woss/2s7s4 2 1 8 7 7 9 6 1~11.

decoded by MPEG audio decoder 41 and lC~ ' by I ' 41. The selected video strcam V is decoded by MPEG video decoder 43 and l~ ' ' on display scrcen 44. The linking data L is applied to Illlk,lU~.llUC~,..~JI 45.
The operation of the television rcceiver will now be elucidated with 5 reference to a flowchart shown in Fig.8. In a step 50, the r receives from theremote control unit a request to display the mosaic picture. 1~ a step 51, it is checkcd whether such a mosaic picture is present in the transport stream TS. This check comprises the reception of the program map table and the analysis of whether or not a mosaic picture descriptor is ~: ' ' therein. The rcceiver thus ~ y 10 ascert, ins whether or not a mosaic picture is ' in the transport strcam. If a mosaic picture is not available, the program executes a ~ ;, 52 to allow the user to select a desired television program im a w~ unàl manner.
If a mosaic picture is foui-ld to be available, a step 53 is performed in which the processor applies the PID of the mosaic elementary video strcam to the15 ~ At this stage, the receiver displays the mos_ic picture. In a step 54, the r - derives the number of ' ~;~,t~_lCs from the parameters horizontal_r_ _ ai-ld vertical_~ in the program map table (see Table 1).
Using cursor keys on his remote control devicc, the user may now move a cursor on the display screcn and select one of the sub-pictures displayed thereon. In a step 20 55, the u~lu~l reads the cursor . " and scans the program map table (see Table 1) for the associated program number. In a step 56, the PlDs of the ~' y audio and video strcams associated with said program number are applied to the ~ Theselected television program is now being received. The l...~lUylU~UI program returns to step 50 so as to await a new request for displaying the mosaic picture.
Fig.7 shows a second ~ b~ ' of a television re~-eiver according to the invention. The receiver differs from the first l ' " iu that it comprisc-s a further MPEG video decoder 47 and a video switch 48. The further decoder receives the ~-' y stream Em , E, the mosaic signal. The decoder also receives from U~ UI 45 the . ' X,Y of the ~ ' p;~,l~c which has been pointed at by the user. While the first 30 decoder 43 decodes and displays the selected program, the further decoder 47 receives the mosaic strcam Em. The further decodel- determines for each ~ ' ~ ' in the ~ ..~y strcam Em whether it belongs to the sub-picture having the ' X,Y. If that is thecase, the ll.a.,lùblOck is decoded and the pixels obtained are applied to video switch 48. The . .

wo ss/2s7s4 2 l 8 7 7 9 6 sub-picture being ~ '; of the selected program is thus cut OUI and displayed as a pic~ure-in-picture .
This e l ' is IKuL~,ul~ly ad~. , when the mosaic signal conveys a picture which is 1 ~ of the associated program. For e~ample, if the 5 Oprah Winfrey show is being broadcast, the associated (still) sub-picture on the mosaic screen may show a ~' " ' of Oprah Winfrey. At any time, the user can deduce from the mosaic picture that the show is being broadcast, even if the show is L~ uily interrupted for TV, ' By cutting out the (still) sub-picture and displaying it for some period of time, confusion is avoided as to whether or not the displayed program ~ I) is10 indeed the selected program (the Oprah Winfrey show).
In summary, the ~ ' of this invention is the ' of digit.,l television by which a large number of programs is broadcast in a single physical channel. As it is difficult for the viewer to get an overview of the services provided, different kinds of "Electronic Program Guides" or "Channel Navigation Syskms" are envisaged for the future.
15 The invention relates to a very simple system of this type. The method according to the invention is MPEG2-based and includes the i (in a separate program of a transport stream) of a video stream ~r " ,, a mosaic picture, the sub-pictures of which are miniature versions of the video stream of other programs in that tranrlport stream. The method further includes the; of r '' which lin~s the position of each sub-20 picture within the mosaic picture with the program number from which the sub-picture is derived. The mosaic picture and the linking ' are then used for a simple navigation system.
In general terms, the navigation system functions as follows. The user is watching a certain program and wishes to vatch something else. He then switches to the 25 mosaic program, which can be told from the other programs e.g. by the presence of the mosaic picture descriptor in its program definition. After locating in the mosaic picture the program he wishes to watch, the user sends a command to the channel navigation system irlforming it of the location of the ~ ' g sub-picture in the mosaic picture. 'fhis can be done e.g. by 'pointing and clicking'. The channel navigation system then translates that 30 positiorl into a program number using e.g. the ' provided in the mosaic picture dr~nr~inn Finally, the channel navigation system sends a request to the '~' to select that program.

Claims (17)

Claims
1. A television transmitter for transmitting a plurality of video signals via a common channel, each video signal having a program number, the transmitter being adapted to:
generate a mosaic video signal comprising a plurality of sub-pictures, each sub-picture representing one of said plurality of video signals;
generate data linking the position of each sub-picture on a display screen with the program number of the associated video signal, and transmit said mosaic video signal and linking data through said common channel.
2. A television transmitter for transmitting a plurality of digital video signals, each signal being transform-coded into a respective elementary bitstream, the transmitter comprising:
means for composing a mosaic picture comprising a plurality of sub-pictures, each sub-picture representing one of said plurality of video signals;
means for encoding said mosaic picture as a further elementary bitstream;
means for transmitting said further elementary bitstream, and means for transmitting data linking the position of each sub-picture within the mosaic picture with the associated video signal.
3. A transmitter as claimed in claim 1 or 2, in which at least one of the sub-pictures is characteristic of the television program conveyed by the associated video signal.
4. A transmitter as claimed in claim 1 or 2, wherein the sub-pictures are characteristic for respective programs scheduled for later transmission, and the linking data includes scheduling data for programming the receiver to automatically display or record said scheduled programs.
5. A transmitter as claimed in claim 2, wherein said linking data is transmitted by using an MPEG2 descriptor.
6. A transmitter as claimed in claim 2, wherein an elementary bitstream includes autonomously encoded and predictively encoded pictures comprising transform-coded blocks having DC-coefficients, and wherein the means for composing the mosaic picture comprises means for selecting the DC coefficients of autonomously encoded pictures to constitute said sub-picture.
7. A television receiver for receiving and displaying a plurality of video signals and a mosaic video signal comprising a plurality of sub-pictures each sub-picture representing one of said plurality of video signals, each video signal having a program number and the mosaic signal including data linking the position of each sub-picture on screen with the program number of the associated video signal, the receiver comprising a display screen, a pointing device, means for receiving the linking data and decoding the program number of a video signal represented by the position of the sub-picture being displayed and pointed at by the pointing device, and adapted to select said video signal for display.
8. A television receiver for receiving digital video signals being transform-coded into elementary bitstreams, a plurality of elementary bitstreams being multiplexed into a transport stream, one of said bitstreams representing a mosaic picture comprising a plurality of sub-pictures, the receiver comprising:
means for receiving and decoding an elementary bitstream for display on a display screen;
means for receiving and decoding data linking the position of each sub-picture of the mosaic picture with the associated video signal;
user-controlled pointing means for selecting a sub-picture from a displayed mosaic picture, and control means adapted to identify the video signal linked with the selected sub-picture, and to cause the receiving and decoding means to receive and decode the elementary bitstream representing said video signal.
9. A receiver as claimed in claim 7 or 8, further comprising means for deriving the selected sub-picture from the mosaic signal and means for simultaneously displaying the selected sub-picture and the associated video signal for a predetermined period of time after selecting said video signal.
10. A receiver as claimed in claim 8, wherein said linking data is received in the form of an MPEG2 descriptor, and wherein the control means are adapted to detect the reception of said descriptor and to receive and display, in response to said detection, the elementary bitstream representing the mosaic video signal.
11. A method of transmitting a plurality of video signals via a common channel, each video signal having a program number, the method comprising the steps of:
generating a mosaic video signal comprising a plurality of sub-pictures, each sub-picture representing one of said plurality of video signals;
generating linking data defining the position of each sub-picture on a display screen and the program number of the corresponding video signal, and transmitting said mosaic video signal and linking data through said common channel.
12. A method of transmitting a plurality of digital video signals, each signal being transform-coded into a respective elementary bitstream, the method comprising the steps of:
composing a mosaic picture comprising a sub-picture for each a plurality of video signals;
encoding said mosaic picture as a further elementary bitstream;
transmitting said further elementary bitstream, and transmitting data linking each sub-picture within the mosaic picture with the associated video signal.
13. A method of receiving and displaying a plurality of video signals and a mosaic video signal comprising a plurality of sub-pictures each sub-picture representing one of said plurality of video signals, each video signal having a program number and the mosaic signal including data linking the position of each sub-picture on screen with the program number of the associated video signal, the method comprising the steps of receiving the linking data and decoding the program number of a video signal represented by the position of the sub-picture being displayed and pointed at by the pointing device, and selecting said 11a video signal for display.
14. A television signal including a plurality of video signals each having a program number, and a mosaic video signal comprising a plurality of sub-pictures, each sub-picture representing one of said plurality of video signals, and further including linking data defining the position of each sub-picture on a display screen and the program number of the corresponding video signal.
15. An MPEG2 television signal including a plurality of digital video signals, each signal being transform-coded into a respective elementary bitstream, a further elementary bitstream representing a mosaic picture comprising a plurality of sub-pictures, each sub-picture representing one of said plurality of video signals, and linking data for linking each sub-picture within the mosaic picture with the associated video signal.
16. A signal as claimed in claim 15, wherein said linking data is transmitted by using an MPEG2 descriptor.
17. A signal as claimed in claim 15 or 16, wherein the respective elementary bitstreams include autonomously encoded and predictively encoded pictures comprising transform coded blocks having DC-coefficients, and wherein the further elementary bitstream comprises the DC coefficients of said autonomously encoded pictures.
CA2187796A 1994-04-15 1995-04-10 Arrangement and method for transmitting and receiving video signals Expired - Lifetime CA2187796C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP94201053 1994-04-15
EP94201053.9 1994-04-15
PCT/IB1995/000255 WO1995028794A2 (en) 1994-04-15 1995-04-10 Arrangement and method for transmitting and receiving video signals

Publications (2)

Publication Number Publication Date
CA2187796A1 CA2187796A1 (en) 1995-10-26
CA2187796C true CA2187796C (en) 2010-06-29

Family

ID=8216808

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2187796A Expired - Lifetime CA2187796C (en) 1994-04-15 1995-04-10 Arrangement and method for transmitting and receiving video signals

Country Status (16)

Country Link
US (2) US5633683A (en)
EP (3) EP0755604B1 (en)
JP (2) JP4204067B2 (en)
KR (3) KR100426515B1 (en)
CN (3) CN1085005C (en)
AT (3) ATE188826T1 (en)
AU (2) AU700272B2 (en)
BR (1) BR9507363A (en)
CA (1) CA2187796C (en)
DE (3) DE69523321T2 (en)
DK (2) DK0775413T3 (en)
ES (3) ES2215360T3 (en)
GR (1) GR3033116T3 (en)
MY (3) MY113163A (en)
PT (1) PT755604E (en)
WO (2) WO1995028794A2 (en)

Families Citing this family (210)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6343991B1 (en) * 1997-10-01 2002-02-05 Brad A. Armstrong Game control with analog pressure sensor
US6222525B1 (en) 1992-03-05 2001-04-24 Brad A. Armstrong Image controllers with sheet connected sensors
US9286294B2 (en) 1992-12-09 2016-03-15 Comcast Ip Holdings I, Llc Video and digital multimedia aggregator content suggestion engine
US7168084B1 (en) 1992-12-09 2007-01-23 Sedna Patent Services, Llc Method and apparatus for targeting virtual objects
US8793738B2 (en) 1994-05-04 2014-07-29 Starsight Telecast Incorporated Television system with downloadable features
US5649032A (en) * 1994-11-14 1997-07-15 David Sarnoff Research Center, Inc. System for automatically aligning images to form a mosaic image
JP4001942B2 (en) * 1995-02-06 2007-10-31 ソニー株式会社 Receiving apparatus and receiving method, and broadcasting system and broadcasting method
US6215530B1 (en) * 1995-05-22 2001-04-10 Scientific-Atlanta, Inc. Logical and composite channel mapping in an MPEG network
US5600378A (en) * 1995-05-22 1997-02-04 Scientific-Atlanta, Inc. Logical and composite channel mapping in an MPEG network
US6769128B1 (en) 1995-06-07 2004-07-27 United Video Properties, Inc. Electronic television program guide schedule system and method with data feed access
US6069902A (en) * 1995-06-14 2000-05-30 Matsushita Electric Industrial Co., Ltd. Broadcast receiver, transmission control unit and recording/reproducing apparatus
US6008959A (en) * 1995-07-05 1999-12-28 U.S. Philips Corporation Recording/reproducing apparatus for storing a digital information signal in a storage medium using packet a method and a record carrier, which further allows for editing the stored digital information signal by including references to additional packets
DE69608231T2 (en) * 1995-07-19 2000-11-30 Koninkl Philips Electronics Nv METHOD AND DEVICE FOR DECODING DIGITAL VIDEO BIT DATA AND RECEIVER DEVICE THEREFOR
US6732369B1 (en) 1995-10-02 2004-05-04 Starsight Telecast, Inc. Systems and methods for contextually linking television program information
US6323911B1 (en) 1995-10-02 2001-11-27 Starsight Telecast, Inc. System and method for using television schedule information
JPH09130763A (en) * 1995-11-01 1997-05-16 Matsushita Electric Ind Co Ltd Still image transmitter
JPH09162859A (en) * 1995-12-07 1997-06-20 Fujitsu Ltd Scrambling method and device, descrambling method and device and data transmission method and system
KR19990072122A (en) * 1995-12-12 1999-09-27 바자니 크레이그 에스 Method and apparatus for real-time image transmission
JP2962348B2 (en) * 1996-02-08 1999-10-12 日本電気株式会社 Image code conversion method
US5918012A (en) * 1996-03-29 1999-06-29 British Telecommunications Public Limited Company Hyperlinking time-based data files
US6310655B1 (en) 1996-04-09 2001-10-30 Hughes Electronics Corporation Method and device for displaying widescreen images on conventional aspect ratio display monitors
JPH1023348A (en) * 1996-05-02 1998-01-23 Matsushita Electric Ind Co Ltd Television broadcast program transmitter and receiver
US5940073A (en) 1996-05-03 1999-08-17 Starsight Telecast Inc. Method and system for displaying other information in a TV program guide
JPH1023375A (en) * 1996-07-04 1998-01-23 Matsushita Electric Ind Co Ltd Sequential digital video decoder
US8674932B2 (en) 1996-07-05 2014-03-18 Anascape, Ltd. Image controller
JPH1032815A (en) * 1996-07-16 1998-02-03 Toshiba Corp Image compositing device
US6366326B1 (en) * 1996-08-01 2002-04-02 Thomson Consumer Electronics Inc. System for acquiring, processing, and storing video data and program guides transmitted in different coding formats
US6215821B1 (en) * 1996-08-07 2001-04-10 Lucent Technologies, Inc. Communication system using an intersource coding technique
JP3198980B2 (en) * 1996-10-22 2001-08-13 松下電器産業株式会社 Image display device and moving image search system
AU720959B2 (en) * 1996-11-21 2000-06-15 Koninklijke Philips Electronics N.V. Transmission and reception of television programs and an additional data service
US8635649B2 (en) 1996-12-19 2014-01-21 Gemstar Development Corporation System and method for modifying advertisement responsive to EPG information
US6687906B1 (en) 1996-12-19 2004-02-03 Index Systems, Inc. EPG with advertising inserts
US6256785B1 (en) * 1996-12-23 2001-07-03 Corporate Media Patners Method and system for providing interactive look-and-feel in a digital broadcast via an X-Y protocol
US6473903B2 (en) * 1996-12-30 2002-10-29 Koninklijke Philips Electronics N.V. Method and system for implementing interactive broadcast programs and commercials
US6084910A (en) * 1997-01-31 2000-07-04 Hughes Electronics Corporation Statistical multiplexer for video signals
US6188436B1 (en) 1997-01-31 2001-02-13 Hughes Electronics Corporation Video broadcast system with video data shifting
US6091455A (en) * 1997-01-31 2000-07-18 Hughes Electronics Corporation Statistical multiplexer for recording video
US6097435A (en) * 1997-01-31 2000-08-01 Hughes Electronics Corporation Video system with selectable bit rate reduction
US6005620A (en) * 1997-01-31 1999-12-21 Hughes Electronics Corporation Statistical multiplexer for live and pre-compressed video
US6078958A (en) * 1997-01-31 2000-06-20 Hughes Electronics Corporation System for allocating available bandwidth of a concentrated media output
US5850218A (en) 1997-02-19 1998-12-15 Time Warner Entertainment Company L.P. Inter-active program guide with default selection control
KR20050052484A (en) * 1997-03-17 2005-06-02 마츠시타 덴끼 산교 가부시키가이샤 Data processing method
US6357045B1 (en) * 1997-03-31 2002-03-12 Matsushita Electric Industrial Co., Ltd. Apparatus and method for generating a time-multiplexed channel surfing signal at television head-end sites
BR9714607B1 (en) * 1997-04-14 2011-12-13 method for automatically forming a composite program guide for display from comparing data from multiple sources.
JP4256936B2 (en) 1997-06-03 2009-04-22 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ How to move between television programs
US5847703A (en) * 1997-07-03 1998-12-08 Vsoft Ltd. Browsing system method and apparatus for video motion pictures
CN1941863B (en) 1997-07-21 2011-06-29 骏升发展（美国）有限公司 Method for displaying target advertisement to user in electronic program guide system
EP0893898B1 (en) 1997-07-23 2009-02-25 Panasonic Corporation Multiplex data receiving equipment
US6020930A (en) * 1997-08-28 2000-02-01 Sony Corporation Method and apparatus for generating and displaying a broadcast system program guide
US6604240B2 (en) 1997-10-06 2003-08-05 United Video Properties, Inc. Interactive television program guide system with operator showcase
JPH11231849A (en) 1997-11-04 1999-08-27 Matsushita Electric Ind Co Ltd Image synthesizing device
JP3662129B2 (en) * 1997-11-11 2005-06-22 松下電器産業株式会社 Multimedia information editing device
DE19752507A1 (en) * 1997-11-27 1999-06-02 Thomson Brandt Gmbh Device for generating a digital video image
DE19754983A1 (en) * 1997-12-11 1999-06-17 Frank Dr Haertig Method of transmitting and showing information, especially TV films
US6492997B1 (en) 1998-02-04 2002-12-10 Corporate Media Partners Method and system for providing selectable programming in a multi-screen mode
US6538701B1 (en) * 1998-02-17 2003-03-25 Gemstar Development Corporation Simulated pip window in EPG
US7185355B1 (en) 1998-03-04 2007-02-27 United Video Properties, Inc. Program guide system with preference profiles
US6160570A (en) * 1998-04-20 2000-12-12 U.S. Philips Corporation Digital television system which selects images for display in a video sequence
JP4649002B2 (en) * 1998-04-20 2011-03-09 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Digital television system that switches channels according to control data in television signals
US6564379B1 (en) 1998-04-30 2003-05-13 United Video Properties, Inc. Program guide system with flip and browse advertisements
US6477706B1 (en) 1998-05-01 2002-11-05 Cogent Technology, Inc. Cable television system using transcoding method
US20020095676A1 (en) 1998-05-15 2002-07-18 Robert A. Knee Interactive television program guide system for determining user values for demographic categories
FR2780843B1 (en) * 1998-07-03 2000-09-08 Thomson Multimedia Sa METHOD FOR PROCESSING VIDEO DATA FOR DISPLAY ON SCREEN AND DEVICE IMPLEMENTING THE METHOD
US6442755B1 (en) 1998-07-07 2002-08-27 United Video Properties, Inc. Electronic program guide using markup language
AU757095B2 (en) 1998-07-20 2003-01-30 Interdigital Ce Patent Holdings Navigation system for a multichannel digital television system
US9924234B2 (en) 1998-07-23 2018-03-20 Comcast Ip Holdings I, Llc Data structure and methods for providing an interactive program
US6584153B1 (en) * 1998-07-23 2003-06-24 Diva Systems Corporation Data structure and methods for providing an interactive program guide
BR9912385A (en) 1998-07-23 2002-01-15 Diva Systems Corp User interface generated on a head end, interactive program guide, and processes for generating and distributing a user interface, and interacting with an interactive program guide
US6754905B2 (en) * 1998-07-23 2004-06-22 Diva Systems Corporation Data structure and methods for providing an interactive program guide
US6483543B1 (en) * 1998-07-27 2002-11-19 Cisco Technology, Inc. System and method for transcoding multiple channels of compressed video streams using a self-contained data unit
US6373530B1 (en) * 1998-07-31 2002-04-16 Sarnoff Corporation Logo insertion based on constrained encoding
US6898762B2 (en) 1998-08-21 2005-05-24 United Video Properties, Inc. Client-server electronic program guide
JP2000138911A (en) * 1998-10-30 2000-05-16 Sony Corp Transmitter, receiver, transmitter-receiver, transmission method reception method and transmission reception method
US7202915B2 (en) * 1998-10-30 2007-04-10 Sony Corporation Systems, methods, and apparatus for simultaneous viewing of differing video program sources
US7765568B1 (en) 1999-01-27 2010-07-27 The Directv Group, Inc. Graphical tuning bar
US8073955B1 (en) 1999-01-27 2011-12-06 The Directv Group, Inc. Method and apparatus for tuning used in a broadcast data system
US6522342B1 (en) 1999-01-27 2003-02-18 Hughes Electronics Corporation Graphical tuning bar for a multi-program data stream
FI106421B (en) * 1999-03-11 2001-01-31 Nokia Multimedia Network Termi Method and arrangement for combining video images
US7012623B1 (en) 1999-03-31 2006-03-14 Canon Kabushiki Kaisha Image processing method and apparatus
US6904610B1 (en) 1999-04-15 2005-06-07 Sedna Patent Services, Llc Server-centric customized interactive program guide in an interactive television environment
US7096487B1 (en) 1999-10-27 2006-08-22 Sedna Patent Services, Llc Apparatus and method for combining realtime and non-realtime encoded content
US6754271B1 (en) 1999-04-15 2004-06-22 Diva Systems Corporation Temporal slice persistence method and apparatus for delivery of interactive program guide
FR2795279B1 (en) * 1999-06-18 2001-07-20 Thomson Multimedia Sa METHOD AND DEVICE FOR SWITCHING DIGITAL TELEVISION PROGRAMS
CN1359591A (en) 1999-06-28 2002-07-17 英戴克系统公司 System and method for utilizing EPG database for modifying advertisements
AU5775900A (en) 1999-06-29 2001-01-31 United Video Properties, Inc. Method and system for a video-on-demand-related interactive display within an interactive television application
US7088725B1 (en) * 1999-06-30 2006-08-08 Sony Corporation Method and apparatus for transcoding, and medium
JP2001036844A (en) * 1999-07-16 2001-02-09 Nec Corp Image quality confirming device, image quality confirming method and recording medium storing its program
US7085377B1 (en) * 1999-07-30 2006-08-01 Lucent Technologies Inc. Information delivery in a multi-stream digital broadcasting system
US6977691B1 (en) * 1999-09-21 2005-12-20 Texas Instruments Incorporated System for nonlinear viewing of television show segments
EP1093302B1 (en) * 1999-10-15 2007-04-18 Matsushita Electric Industrial Co., Ltd. Multichannel display data generating apparatus, and data medium, and computer program therefor
CA2388606C (en) * 1999-10-27 2009-12-29 Diva Systems Corporation Picture-in-picture and multiple video streams using slice-based encoding
US6738424B1 (en) 1999-12-27 2004-05-18 Objectvideo, Inc. Scene model generation from video for use in video processing
JP3639761B2 (en) * 1999-12-27 2005-04-20 財団法人エヌエイチケイサービスセンター Broadcasting method of data broadcasting in television broadcasting
CA2326197A1 (en) * 2000-01-11 2001-07-11 International Business Machines Corporation Method and system for enabling real-time interactive e-commerce transactions
CN1173570C (en) * 2000-01-28 2004-10-27 开放电视公司 Interactive TV. systemand method for simultineous transmission and rendering of multiple encoded video streams
JP3380517B2 (en) * 2000-03-30 2003-02-24 松下電器産業株式会社 Special reproduction data creation device and medium
AR027760A1 (en) 2000-03-31 2003-04-09 United Video Properties Inc PROVISION AND METHOD FOR ADVERTISING NOTICE LINKED WITH METADATA
JP4724919B2 (en) * 2000-06-02 2011-07-13 ソニー株式会社 Recording apparatus and recording method, reproducing apparatus and reproducing method, and recording medium
US6714264B1 (en) 2000-08-31 2004-03-30 Matsushita Electric Industrial Co., Ltd. Digital television channel surfing system
US20020065927A1 (en) * 2000-09-05 2002-05-30 Janik Craig M. Webpad and method for using the same
US8122236B2 (en) 2001-10-24 2012-02-21 Aol Inc. Method of disseminating advertisements using an embedded media player page
CN1471669A (en) 2000-10-24 2004-01-28 汤姆森许可公司 Method of disseminating advertisements using an embedded media player page
KR20020064963A (en) * 2000-10-24 2002-08-10 코닌클리케 필립스 일렉트로닉스 엔.브이. Method of transcoding and transcoding device with embedded filters
US7346698B2 (en) * 2000-12-20 2008-03-18 G. W. Hannaway & Associates Webcasting method and system for time-based synchronization of multiple, independent media streams
US20020084986A1 (en) * 2001-01-04 2002-07-04 Armstrong Brad A. Computer mouse with specialized button(s)
EP1233614B1 (en) * 2001-02-16 2012-08-08 C.H.I. Development Mgmt. Ltd. XXIX, LLC System for video transmission and processing generating a user mosaic
WO2002080576A1 (en) 2001-03-12 2002-10-10 Koninklijke Philips Electronics N.V. Method of multiplexing a number of video signals with a compressor
US7590178B2 (en) 2001-03-12 2009-09-15 Robert Bosch Gmbh Method of multiplexing a number of video signals with a compressor
EP1246469A3 (en) * 2001-03-27 2005-04-13 Koninklijke Philips Electronics N.V. Method of simoultaneously downconverting and decoding of video
US20020184307A1 (en) * 2001-05-30 2002-12-05 Pineau Richard A. Method and apparatus for printing remote images using a mobile device and printer
EP1263205A1 (en) 2001-06-02 2002-12-04 Nokia Corporation Method for providing a terminal with coded still image signals, communications system, network element and module
US7908628B2 (en) 2001-08-03 2011-03-15 Comcast Ip Holdings I, Llc Video and digital multimedia aggregator content coding and formatting
US7793326B2 (en) 2001-08-03 2010-09-07 Comcast Ip Holdings I, Llc Video and digital multimedia aggregator
EP1324615A1 (en) * 2001-12-28 2003-07-02 Deutsche Thomson-Brandt Gmbh Transcoding MPEG bitstreams for adding sub-picture content
US20030159143A1 (en) * 2002-02-21 2003-08-21 Peter Chan Systems and methods for generating a real-time video program guide through video access of multiple channels
US20030196211A1 (en) * 2002-04-10 2003-10-16 Peter Chan Systems, methods and apparatuses for simulated rapid tuning of digital video channels
JP2005531971A (en) * 2002-07-01 2005-10-20 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Video signal processing system
FR2842320A1 (en) * 2002-07-12 2004-01-16 Thomson Licensing Sa MULTIMEDIA DATA PROCESSING DEVICE
CN100358317C (en) * 2002-09-09 2007-12-26 中国科学院软件研究所 Community broad band Integrated service network system
JP4633464B2 (en) * 2002-10-21 2011-02-16 エヌエックスピー ビー ヴィ Sub-image manipulation in compressed video signals
US20040111526A1 (en) * 2002-12-10 2004-06-10 Baldwin James Armand Compositing MPEG video streams for combined image display
US20040150749A1 (en) * 2003-01-31 2004-08-05 Qwest Communications International Inc. Systems and methods for displaying data over video
US20040150751A1 (en) * 2003-01-31 2004-08-05 Qwest Communications International Inc. Systems and methods for forming picture-in-picture signals
US7921443B2 (en) 2003-01-31 2011-04-05 Qwest Communications International, Inc. Systems and methods for providing video and data services to a customer premises
US7194249B2 (en) * 2003-01-31 2007-03-20 Qwest Communications International Inc. Methods, systems and apparatus for providing urgent public information
US20040150750A1 (en) * 2003-01-31 2004-08-05 Qwest Communications International Inc. Systems and methods for monitoring visual information
US20040150748A1 (en) * 2003-01-31 2004-08-05 Qwest Communications International Inc. Systems and methods for providing and displaying picture-in-picture signals
US8490129B2 (en) * 2003-01-31 2013-07-16 Qwest Communications International Inc. Methods, systems and apparatus for selectively distributing urgent public information
US8713617B2 (en) * 2003-01-31 2014-04-29 Qwest Communications International Inc. Systems and methods for providing television signals using a network interface device
US20040163126A1 (en) * 2003-01-31 2004-08-19 Qwest Communications International Inc. Methods and apparatus for delivering a computer data stream to a video appliance with a network interface device
US10142023B2 (en) 2003-01-31 2018-11-27 Centurylink Intellectual Property Llc Antenna system and methods for wireless optical network termination
KR100429688B1 (en) * 2003-06-21 2004-05-03 주식회사 휴맥스 Method for transmitting and receiving audio in mosaic epg service
US8731378B2 (en) * 2003-06-30 2014-05-20 Broadcom Corporation System, method, and apparatus for playing back a plurality of video elementary streams with one playback channel
US8112449B2 (en) 2003-08-01 2012-02-07 Qwest Communications International Inc. Systems and methods for implementing a content object access point
US20050094562A1 (en) * 2003-10-30 2005-05-05 Sumit Roy Methods and devices for reducing total bandwidth when streaming multiple media streams
WO2005107245A1 (en) * 2004-04-28 2005-11-10 Aircode Co., Ltd. A system for mosaic epg and a method thereof
CN101432728A (en) * 2004-07-02 2009-05-13 Aol有限责任公司 Relevant multimedia advertising targeted based upon search query
KR100708377B1 (en) * 2004-12-21 2007-04-18 주식회사 대우일렉트로닉스 Decoder for multiple video on receiving digital broadcasting
US20090064242A1 (en) * 2004-12-23 2009-03-05 Bitband Technologies Ltd. Fast channel switching for digital tv
WO2006080943A1 (en) * 2005-01-24 2006-08-03 Thomson Licensing Method, apparatus and system for visual inspection of transcoded video
JP4478604B2 (en) * 2005-04-06 2010-06-09 キヤノン株式会社 Image display system
KR100703529B1 (en) * 2005-05-26 2007-04-03 삼성전자주식회사 Apparatus and method for receiving images of multiple channel in receiving digital multimedia broadcasting
CN100581226C (en) * 2005-08-05 2010-01-13 三星电子株式会社 Apparatus for providing a plurality of screens and method of dynamically configuring a plurality of screens
JP4769513B2 (en) * 2005-08-15 2011-09-07 キヤノン株式会社 Reproduction control method and reproduction control apparatus
US7788266B2 (en) 2005-08-26 2010-08-31 Veveo, Inc. Method and system for processing ambiguous, multi-term search queries
KR100719023B1 (en) * 2005-10-08 2007-05-17 삼성전자주식회사 Display Apparatus And Contents Information Displaying Method
US9113107B2 (en) 2005-11-08 2015-08-18 Rovi Guides, Inc. Interactive advertising and program promotion in an interactive television system
US20070106782A1 (en) * 2005-11-10 2007-05-10 Scientific-Atlanta, Inc. Bandwidth management in each network device in a switched digital video environment
US8099756B2 (en) * 2005-11-10 2012-01-17 Versteeg William C Channel changes between services with differing bandwidth in a switched digital video system
US7742407B2 (en) * 2005-11-10 2010-06-22 Scientific-Atlanta, Llc Quality of service management in a switched digital video environment
US20070107024A1 (en) * 2005-11-10 2007-05-10 Scientific-Atlanta, Inc. Atomic channel changes in a switched digital video system
US7873760B2 (en) * 2005-11-11 2011-01-18 Versteeg William C Expedited digital signal decoding
JP2006166476A (en) * 2005-12-28 2006-06-22 Hitachi Kokusai Electric Inc Method for transmitting image
US20070156521A1 (en) 2005-12-29 2007-07-05 United Video Properties, Inc. Systems and methods for commerce in media program related merchandise
KR100754652B1 (en) * 2006-02-09 2007-09-05 삼성전자주식회사 Broadcasting system and method for providing a multiple broadcasting service
US8330866B2 (en) 2006-02-21 2012-12-11 Qualcomm Incorporated Multi-program viewing in a wireless apparatus
US8428048B2 (en) 2006-02-21 2013-04-23 Qualcomm Incorporated Multi-program viewing in a wireless apparatus
US7739280B2 (en) 2006-03-06 2010-06-15 Veveo, Inc. Methods and systems for selecting and presenting content based on user preference information extracted from an aggregate preference signature
WO2007102147A2 (en) * 2006-03-07 2007-09-13 Bitband Technologies Ltd. Personalized insertion of advertisements in streaming media
US20070250865A1 (en) * 2006-03-23 2007-10-25 Krakirian Haig H System and method for selectively recording program content from a mosaic display
US8316394B2 (en) 2006-03-24 2012-11-20 United Video Properties, Inc. Interactive media guidance application with intelligent navigation and display features
AT503668B1 (en) * 2006-06-21 2007-12-15 H P R Electronics Gmbh Entwick METHOD AND DEVICE FOR PRESENTING SIGNALS ON A DISPLAY DEVICE
US20080022320A1 (en) * 2006-06-30 2008-01-24 Scientific-Atlanta, Inc. Systems and Methods of Synchronizing Media Streams
US7877660B2 (en) * 2006-07-07 2011-01-25 Ver Steeg William C Transmitting additional forward error correction (FEC) upon request
US7774672B2 (en) 2006-07-07 2010-08-10 Scientific-Atlanta, Llc Requesting additional forward error correction
US7899046B2 (en) * 2006-07-07 2011-03-01 Ver Steeg William C Determining strategy for multicast and/or unicast transmission to correct forward errors
US7725797B2 (en) 2006-07-07 2010-05-25 Scientific-Atlanta, Llc Buffer for storing data and forward error correction (FEC)
US9633356B2 (en) * 2006-07-20 2017-04-25 Aol Inc. Targeted advertising for playlists based upon search queries
US20080046935A1 (en) * 2006-08-18 2008-02-21 Krakirian Haig H System and method for displaying program guide information
US8832742B2 (en) 2006-10-06 2014-09-09 United Video Properties, Inc. Systems and methods for acquiring, categorizing and delivering media in interactive media guidance applications
US7870465B2 (en) * 2006-10-18 2011-01-11 Versteeg William C Reducing channel-change time
EP1954055A3 (en) 2007-02-02 2010-01-20 ROBUST Electronics GmbH Method for operating a radio receiver and radio receiver for implementing the method
US7801888B2 (en) 2007-03-09 2010-09-21 Microsoft Corporation Media content search results ranked by popularity
EP1971142B1 (en) * 2007-03-14 2012-12-19 Sony Deutschland GmbH Method for displaying video pictures
KR100873951B1 (en) 2007-03-23 2008-12-12 주식회사 알티캐스트 Channel searching apparatus and system
US20080244667A1 (en) * 2007-03-27 2008-10-02 Osborne Jason C Bandwidth sensitive switched digital video content delivery
US8370889B2 (en) * 2007-03-28 2013-02-05 Kanthimathi Gayatri Sukumar Switched digital video client reverse channel traffic reduction
EP2149256B1 (en) * 2007-05-30 2018-04-04 Orange Generation of customisable tv mosaic
WO2008151416A1 (en) * 2007-06-12 2008-12-18 In Extenso Holdings Inc. Distributed synchronized video viewing and editing
KR100904015B1 (en) * 2007-06-12 2009-06-22 주식회사 알티캐스트 Multi-moving picture contents searching service providing system and method
US8056102B2 (en) * 2007-06-18 2011-11-08 Alticast Corporation Channel selection device receiving a multi-channel video and a channel selection method receiving a multi-channel video
US8776160B2 (en) * 2007-07-27 2014-07-08 William C. Versteeg Systems and methods of differentiated requests for network access
US8832766B2 (en) * 2007-07-27 2014-09-09 William C. Versteeg Systems and methods of differentiated channel change behavior
US8381245B2 (en) 2007-12-19 2013-02-19 Verizon Patent And Licensing Inc. Program guide image objects for media content access systems and methods
US8700792B2 (en) * 2008-01-31 2014-04-15 General Instrument Corporation Method and apparatus for expediting delivery of programming content over a broadband network
CN101567742B (en) * 2008-04-23 2011-04-20 中兴通讯股份有限公司 Transmitting system, receiving terminal and method of multimedia program preview information
DE102008026956A1 (en) 2008-06-05 2009-12-24 Tobias Römer Method for switching between digital TV channels i.e. high resolution digital TV channels, involves receiving complete video signal of digital TV channel at one of receivers at time point, and outputting signal at receiver device
US8752092B2 (en) * 2008-06-27 2014-06-10 General Instrument Corporation Method and apparatus for providing low resolution images in a broadcast system
US7886073B2 (en) * 2008-08-08 2011-02-08 Cisco Technology, Inc. Systems and methods of reducing media stream delay
US8015310B2 (en) * 2008-08-08 2011-09-06 Cisco Technology, Inc. Systems and methods of adaptive playout of delayed media streams
US8239739B2 (en) * 2009-02-03 2012-08-07 Cisco Technology, Inc. Systems and methods of deferred error recovery
EP2228985A1 (en) 2009-03-13 2010-09-15 Advanced Digital Broadcast S.A. Combined television data stream, method for displaying television channel and method for generating combined television data stream
US9166714B2 (en) 2009-09-11 2015-10-20 Veveo, Inc. Method of and system for presenting enriched video viewing analytics
US8359616B2 (en) 2009-09-30 2013-01-22 United Video Properties, Inc. Systems and methods for automatically generating advertisements using a media guidance application
CN101778287B (en) * 2010-02-11 2014-10-01 深圳市茁壮网络股份有限公司 Digital television navigation method, system and device
US9357244B2 (en) * 2010-03-11 2016-05-31 Arris Enterprises, Inc. Method and system for inhibiting audio-video synchronization delay
EP2594070A1 (en) * 2010-07-13 2013-05-22 Thomson Licensing Method of picture-in-picture for multimedia applications
US9736524B2 (en) 2011-01-06 2017-08-15 Veveo, Inc. Methods of and systems for content search based on environment sampling
US9154813B2 (en) 2011-06-09 2015-10-06 Comcast Cable Communications, Llc Multiple video content in a composite video stream
US8773584B2 (en) * 2011-08-11 2014-07-08 Panasonic Corporation Playback apparatus, playback method, integrated circuit, broadcast system, and broadcast method using a broadcast video and additional video
US9015555B2 (en) 2011-11-18 2015-04-21 Cisco Technology, Inc. System and method for multicast error recovery using sampled feedback
US9147198B2 (en) 2013-01-10 2015-09-29 Rovi Technologies Corporation Systems and methods for providing an interface for data driven media placement
US9848276B2 (en) 2013-03-11 2017-12-19 Rovi Guides, Inc. Systems and methods for auto-configuring a user equipment device with content consumption material
JP5938800B2 (en) * 2013-03-27 2016-06-22 パナソニックＩｐマネジメント株式会社 Video receiving apparatus and video receiving method
CN105340280B (en) * 2013-07-02 2018-09-25 索尼公司 Content supply device, Content supply method, storage medium, terminal installation and contents providing system
US10764645B2 (en) 2014-01-22 2020-09-01 Sunshine Partners LLC Viewer-interactive enhanced video advertisements
EP2983371A1 (en) 2014-08-06 2016-02-10 Advanced Digital Broadcast S.A. System and method for channels zapping
US9948962B2 (en) 2014-11-13 2018-04-17 Time Warner Cable Enterprises Llc Apparatus and methods for efficient delivery of electronic program guide data
EP3029950A1 (en) 2014-12-03 2016-06-08 Advanced Digital Broadcast S.A. System and method for graphical user interface mosaic
JP7045856B2 (en) * 2015-01-22 2022-04-01 ハドリー インコーポレイテッド Video transmission based on independent coded background update

Family Cites Families (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3580989A (en) * 1966-03-03 1971-05-25 Thomas A Banning Jr Subscription television system utilizing a transmission line for conducting each aesthetic quality television program
US3825674A (en) * 1973-05-25 1974-07-23 Westinghouse Electric Corp Educational tv branching system
US4660096A (en) * 1984-12-11 1987-04-21 Rca Corporation Dividing high-resolution-camera video signal response into sub-image blocks individually raster scanned
JPS62159989A (en) * 1986-01-08 1987-07-15 Sony Corp Television receiver
JPH01246972A (en) * 1988-03-28 1989-10-02 Toshiba Corp Channel selection controller
DE3925501A1 (en) * 1988-07-30 1990-02-01 Samsung Electronics Co Ltd MULTIPLE SCREEN GENERATING CIRCUIT
US5091785A (en) * 1989-04-20 1992-02-25 Thomson Consumer Electronics, Inc. Picture-in-picture circuitry using field rate synchronization
JP3058333B2 (en) * 1989-07-25 2000-07-04 ソニー株式会社 Image retrieval apparatus and method
IE910049A1 (en) * 1991-01-07 1992-07-15 Zandar Res Ltd Multiple video monitoring
JPH04299070A (en) * 1991-03-26 1992-10-22 Hitachi Ltd Switching regulator
JP2909239B2 (en) * 1991-03-27 1999-06-23 株式会社東芝 High-efficiency coded recording / reproducing device
DE4123617C2 (en) * 1991-07-17 1995-07-06 Metallgesellschaft Ag Device for transporting substances
JPH0549016A (en) * 1991-08-13 1993-02-26 Canon Inc Moving picture transmitter
US5257113A (en) * 1991-09-20 1993-10-26 International Business Machines Corporation Video mixing technique using JPEG compressed data
EP1320268A1 (en) * 1991-09-30 2003-06-18 Kabushiki Kaisha Toshiba Band-compressed signal recording/reproducing processing apparatus
KR950011039B1 (en) * 1992-02-29 1995-09-27 삼성전자주식회사 Dicture-out-picture control device and method thereof
JP3161017B2 (en) * 1992-04-16 2001-04-25 ソニー株式会社 Video decoding device
JP3269851B2 (en) * 1992-06-16 2002-04-02 株式会社日立製作所 Television signal display
JPH0638128A (en) * 1992-06-19 1994-02-10 Sony Corp Video image display device
US5289276A (en) * 1992-06-19 1994-02-22 General Electric Company Method and apparatus for conveying compressed video data over a noisy communication channel
KR100283343B1 (en) * 1992-06-25 2001-03-02 이데이 노부유끼 Image signal encoding method and decoding method, image signal encoding apparatus and decoding apparatus
JPH0622215A (en) * 1992-07-06 1994-01-28 Toshiba Corp Video transmission method, video transmitter and video receiver used for the same
JPH0638164A (en) * 1992-07-17 1994-02-10 Takaoka Electric Mfg Co Ltd Video input/output device with retrieval function
EP0582122B1 (en) * 1992-07-21 1999-03-24 Matsushita Electric Industrial Co., Ltd. Scramble apparatus and descramble apparatus
KR0128245B1 (en) * 1992-10-07 1998-04-02 배순훈 High definition television with divicding pictures e
JP3076462B2 (en) * 1992-11-09 2000-08-14 松下電器産業株式会社 Versatile variable length coder for digital video coder
US5537153A (en) * 1992-11-16 1996-07-16 Kabushiki Kaisha Toshiba Television signal transmission and reception system with multi-screen display for tuning operation
US5398074A (en) * 1992-11-24 1995-03-14 Thomson Consumer Electronics, Inc. Programmable picture-outside-picture display
US5600573A (en) * 1992-12-09 1997-02-04 Discovery Communications, Inc. Operations center with video storage for a television program packaging and delivery system
JP3240017B2 (en) * 1993-01-11 2001-12-17 ソニー株式会社 MPEG signal recording method and MPEG signal reproducing method
US5576902A (en) * 1993-01-13 1996-11-19 Hitachi America, Ltd. Method and apparatus directed to processing trick play video data to compensate for intentionally omitted data
GB9301093D0 (en) * 1993-01-20 1993-03-10 Rca Thomson Licensing Corp Digital video tape recorder for digital hdtv
JP3137486B2 (en) * 1993-01-29 2001-02-19 松下電器産業株式会社 Multi-screen split display device
US5485221A (en) * 1993-06-07 1996-01-16 Scientific-Atlanta, Inc. Subscription television system and terminal for enabling simultaneous display of multiple services
JP2707950B2 (en) * 1993-07-30 1998-02-04 ソニー株式会社 Digital image information processing device
US5430486A (en) * 1993-08-17 1995-07-04 Rgb Technology High resolution video image transmission and storage
US5515437A (en) * 1993-08-23 1996-05-07 Matsushita Electric Industrial Co., Ltd. Scramble transmission apparatus and signal processing apparatus
US5426699A (en) * 1993-10-25 1995-06-20 Antec Corporation Method and apparatus for digitizing a scrambled analog video signal
US5631693A (en) * 1993-10-25 1997-05-20 Antec Corporation Method and apparatus for providing on demand services in a subscriber system
US5422674A (en) * 1993-12-22 1995-06-06 Digital Equipment Corporation Remote display of an image by transmitting compressed video frames representing background and overlay portions thereof
US5420866A (en) * 1994-03-29 1995-05-30 Scientific-Atlanta, Inc. Methods for providing conditional access information to decoders in a packet-based multiplexed communications system
US5515107A (en) * 1994-03-30 1996-05-07 Sigma Designs, Incorporated Method of encoding a stream of motion picture data
US5598222A (en) * 1995-04-18 1997-01-28 Hatachi American, Ltd. Method and apparatus for decoding multiple video bitstreams using a common memory

Also Published As

Publication number Publication date
US5633683A (en) 1997-05-27
DE69523321T2 (en) 2002-07-04
DE69532656T2 (en) 2005-02-10
AU2082195A (en) 1995-11-10
JPH09512147A (en) 1997-12-02
CN1085005C (en) 2002-05-15
WO1995028794A2 (en) 1995-10-26
KR20040004520A (en) 2004-01-13
ES2215360T3 (en) 2004-10-01
EP0964576A1 (en) 1999-12-15
EP0755604A1 (en) 1997-01-29
US6041068A (en) 2000-03-21
EP0775413B9 (en) 2002-10-16
EP0964576B1 (en) 2004-03-03
DK0775413T3 (en) 2002-12-23
DE69523321D1 (en) 2001-11-22
EP0775413A2 (en) 1997-05-28
BR9507363A (en) 1997-11-18
DK0755604T3 (en) 2000-06-13
CN1149953A (en) 1997-05-14
KR100354937B1 (en) 2002-12-26
KR970702658A (en) 1997-05-13
CN1149950A (en) 1997-05-14
CN1492677A (en) 2004-04-28
AU686355B2 (en) 1998-02-05
ES2165417T3 (en) 2002-03-16
KR100426515B1 (en) 2004-04-14
WO1995028794A3 (en) 1995-11-23
DE69514508D1 (en) 2000-02-17
MY114163A (en) 2002-08-30
DE69514508T2 (en) 2000-07-20
DE69514508C5 (en) 2006-05-18
WO1995028795A3 (en) 1995-11-30
WO1995028795A2 (en) 1995-10-26
MY113163A (en) 2001-12-31
MY134158A (en) 2007-11-30
AU700272B2 (en) 1998-12-24
CA2187796A1 (en) 1995-10-26
EP0755604B1 (en) 2000-01-12
ATE207268T1 (en) 2001-11-15
AU2082295A (en) 1995-11-10
KR100461207B1 (en) 2005-04-21
ATE188826T1 (en) 2000-01-15
JPH09512148A (en) 1997-12-02
EP0775413B1 (en) 2001-10-17
GR3033116T3 (en) 2000-08-31
DE69532656D1 (en) 2004-04-08
ES2143622T3 (en) 2000-05-16
ATE261227T1 (en) 2004-03-15
KR970702667A (en) 1997-05-13
JP4204067B2 (en) 2009-01-07
PT755604E (en) 2000-06-30
CN1139258C (en) 2004-02-18

Similar Documents

Publication Publication Date Title
CA2187796C (en) Arrangement and method for transmitting and receiving video signals
EP1868384B1 (en) Method and apparatus for transmitting video and graphics in a compressed form
US6704359B1 (en) Efficient encoding algorithms for delivery of server-centric interactive program guide
US6621870B1 (en) Method and apparatus for compressing video sequences
EP1001614B1 (en) A method for processing program specific parameters derived from multiple broadcast sources
KR100894459B1 (en) Digital broadcast receiving apparatus and control method therefor
CA2253518C (en) Digital data transmission method, digital data transmission device and digital data receiving device
MXPA01000974A (en) Compressed digital-data seamless video switching system.
CN1278691A (en) Storage for interactive video-frequency performance
US8286207B1 (en) System for processing programs and system timing information derived from multiple broadcast sources
JP3646887B2 (en) Electronic program guide transmission apparatus and method, and electronic program guide reception apparatus and method
GB2356517A (en) A receiver for simultaneously displaying first and second video signals
WO2001001592A1 (en) Efficient encoding algorithms for delivery of server-centric interactive program guide
MXPA00000345A (en) A system for forming and processing program map information suitable for terrestrial, cable or satellite broadcast

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20150410

MKEX Expiry

Effective date: 20150410