CA2583078A1 - Program guide system with video-on-demand browsing - Google Patents

Program guide system with video-on-demand browsing Download PDF

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Publication number
CA2583078A1
CA2583078A1 CA 2583078 CA2583078A CA2583078A1 CA 2583078 A1 CA2583078 A1 CA 2583078A1 CA 2583078 CA2583078 CA 2583078 CA 2583078 A CA2583078 A CA 2583078A CA 2583078 A1 CA2583078 A1 CA 2583078A1
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Prior art keywords
program
viewer
video
program guide
demand
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Granted
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CA 2583078
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French (fr)
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CA2583078C (en
Inventor
Michael D. Ellis
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Adeia Guides Inc
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Individual
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Application filed by Individual filed Critical Individual
Priority to CA2797662A priority Critical patent/CA2797662C/en
Publication of CA2583078A1 publication Critical patent/CA2583078A1/en
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Classifications

    • 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
    • H04N21/4314—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 fitting data in a restricted space on the screen, e.g. EPG data in a rectangular grid
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • 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
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    • H04N21/26283—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists for associating distribution time parameters to content, e.g. to generate electronic program guide data
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    • H04N21/42226—Reprogrammable remote control devices
    • H04N21/42227—Reprogrammable remote control devices the keys being reprogrammable, e.g. soft keys
    • H04N21/42228—Reprogrammable remote control devices the keys being reprogrammable, e.g. soft keys the reprogrammable keys being displayed on a display screen in order to reduce the number of keys on the remote control device itself
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    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
    • H04N21/4263—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific tuning arrangements, e.g. two tuners
    • H—ELECTRICITY
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    • H04N21/4524—Management of client data or end-user data involving the geographical location of the client
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    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
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    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
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    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/482—End-user interface for program selection
    • 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
    • H04N21/47—End-user applications
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    • H04N21/4821—End-user interface for program selection using a grid, e.g. sorted out by channel and broadcast time
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    • H04N21/47—End-user applications
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    • H04N21/4826—End-user interface for program selection using recommendation lists, e.g. of programs or channels sorted out according to their score
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    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/854—Content authoring
    • H04N21/8549—Creating video summaries, e.g. movie trailer
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    • H04N7/00—Television systems
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    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17318—Direct or substantially direct transmission and handling of requests
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    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17336—Handling of requests in head-ends

Abstract

An interactive television program guide system is provided in which a viewer may direct a television to simultaneously display a selected television program and a program guide display.
A viewer may use the program guide display to browse available video-on-demand (VOD) while continuing to view a previously selected program in the background. The viewer may browse through video-on-demand programs on the program guide display using a variety of keys on a remote control unit. The viewer may direct the program guide to order a given video--on-demand program, and set a desired broadcast time for that program.

Description

PROGRAM GUIDE SYSTEM WITH VIDEO-ON-DEMAND BROWSING
This application is a divisional of Canadian Patent Application Serial No. 2,509,937 filed July 14, 2005, which is a divisional of Canadian Patent Application Serial No. 2,388,167 filed June 27, 2002, which in turn is a divisional of Canadian Patent Application Serial No.
2,332,343 filed May 18, 1999.

Background of the Invention This invention relates to interactive television program guides, and more particularly, to television program guides that allow viewers to browse video-on-demand programs. A television program and a program guide display containing information for video-on-demand programs may be simultaneously displayed on a display screen.

Throughout the history of television, broadcasting networks have been striving to provide television viewers with interesting programming shown at convenient viewing times. This has proven to be a difficult task given the vast diversity of the television viewing public. Over time, cable systems with services such as "pay-per-view" and "request" channels emerged which provided television viewers with greater programming variety and more control over their program viewing schedule. However, these systems offered viewers a relatively small number of programs shown at only a few pre-determined broadcast times.

More recently, video-on-demand or "VOD" programs have become available to some cable system subscribers.

Video-on-demand programs generally consist of a library or database of programs that are available at any time for viewing. Such programs are typically stored in a video server located in a nearby television distribution facility. A viewer may select a program from the database and request the video server to provide that program. The video server processes this request, and, if the selected program is available, routes a video signal of that program to the viewer's television equipment. Such video-on-demand systems allow viewers to watch the programs contained in the database at virtually any time. U.S. Patent No. 5,619,249 describes such a video-on-demand service where a telecasting service is provided that implements the ability to offer video program upon viewer demand.

Television program guides help television viewers to select programs of interest. Television viewers have traditionally consulted printed program schedules to determine programs being broadcast at a particular time.
Recently, cable, satellite, and broadcast television systems have provided viewers with an increasingly large number of television channels to choose from. As the number of potential programs of interest to the viewer has increased, interactive electronic program guides have been developed to help viewers determine which programs may be of particular interest. Such interactive program guides are usually implemented using a microprocessor-controlled set-top box that is coupled to the viewer's television set. These set-top boxes typically receive program information from a central broadcasting center and store it in a memory within the set-top box. The information typically includes program titles, broadcast times, channels, program descriptions, etc.
Viewers can invoke the program guide display and use up and down remote control cursor keys to peruse program listings for available programming.
Once a program of interest has been located, the viewer can direct the remote control to command the set-top box zo display that program.
Current interactive video-on-demand program guides display program listings on the viewer's display screen. A text description of the displayed program and ordering options are also provided. This type of video-on-demand program guide display covers the entire television screen and does not allow the viewer to view both the video-on-demand program guide display and a previouslv selected television channei. If the viewer is interested in viewina video-on-demand programs, he or she must leave any programming in proaress and display a full-screen program guide overlay to view video-on-demand programming options.
It is therefore an object of the present invention to rrovide a video-on-demand program guide system with improved capabilities for viewina and selecting television programs.
?t is another object cf the present invention tc provide a video-on-demand program guide system that ailows a viewer to simultaneously view both a video-on-demand program guide display and a selected television ~( r rnnram nn a rnl atii c i nn rJ i ~. r..~ ~,..... .,.. ... .~_..._~_.... ..~...Y.~uy' SCrccii.
Summary of the Invention These and other objects of embodiments of the invention are accomplished in accordance with the principles of the present invention by providing an interactive television program guide system with a video-on-demand browse capability. A viewer may direct the program guide to present a program guide display on viewer television equipment that contains video-on-demand programs.

According to one aspect of the present invention, there is provided an interactive television program guide system implemented on viewer television equipment having a main display screen, comprising: means for displaying a given television program on the viewer television equipment;
means for displaying a partial screen program guide display on the viewer television equipment at the same time that the given television program is displayed, the program guide display including at least one video-on-demand program listing; and means for requesting a video clip preview of at least one of the video-on-demand programs represented by the at least one video-on-demand program listing.
According to another aspect of the present invention, there is provided a method for using an interactive television program guide system implemented on viewer television equipment having a main display screen comprising the steps of: simultaneously displaying on the main display screen a television program and a partial screen program guide display including at least one video-on-demand program listing; allowing the viewer to browse through available program listings in the program guide; and allowing the viewer to request a video clip preview of at 4a least one of the video-on-demand programs represented by the at least one video-on-demand program listing.

The program guide display of an embodiment of the present invention contains information for one or more video-on-demand (VOD) programs in a given category.
Information about video-on-demand programs in other categories is not shown. A viewer may obtain information about other video-on-demand programs in a particular category by browsing through the programs on the program guide using up and down cursor keys. Other video-on-demand program categories may be selected using left and right cursor keys.

When the program guide display is active, the program guide may reduce the amount of screen area used by the current channel so that the program guide display and the current channel are displayed unobscured. However, if desired, the program guide display may be superimposed on a portion of the viewer's television screen such that the viewer may continue to watch a previously selected program in the background while the program guide is displayed.
This allows the viewer to continue watching a program while browsing for video-on-demand programs.

The program guide display may contain brief text descriptions of the displayed video-on-demand programs. When the viewer browses through available program.mir,g with rer.iote ccntrcl cursor keys, each brief description may be automaticaliv updated to correspond to the displayed program.
F. viewer may obtain more information about a given video-on-demand program by pressing an info key located on a remote contre' unit. "'his may cause a detailed infcrmation screen tc ap-pear which supplies additicna? i::Lormaticn abo::_- :na*_ :Tideo-on-demand 1'J program.
P. viewer may order a video-on-demand program by pressing an on-screen button or by pressing a kev on a remote control unit such as a select key. This may cause a configuration and contrc_ screen to appear that requires the viewer to input infcrmation to complete the order. Such information may include entering a parental control code and/or entering a desired program start time. The program guide may orovide the viewer with a confirmation screen to confirm the viewer's order.

Further features of embodiments of the invention, its nature and various advantages will be more apparent from the accompanying drawings and the following detailed description of the preferred embodiments.

Brief Descrio;.ion of the Drawings FIG. lA is a convent;ona= video-on-demand program auide display which covers the majority of the viewer's display screen and allows the viewer to select a categorv of programs.
FIG. 1B is a conventional video-on-demand program guide disrDlav which covers the major=tv of the viewer's d;sp.iav screen and allows the viewer to peruse programs in a particular categcry.
FIG. 1C is a ccnventional video-on-demand program auide displav order confirmation screen which covers the majority of the viewer's display screen.
FIG. 2 is a diaaram of a system in which an interactive television proaram a,:ide may be implemented in accordance with the present invention.
F_G. 3 is a dlaCran cf an illustrative video IC server for use with the program guide system of the present invention.
FIG. 4 is a diaaram of another system in which an interactive television program guide may be implemented in accordance with the present inventiorl.
FIG. 5 is a diactram of an illustrative remote control for use with the program guide system of the present invention.
FIG. 6A is an illustrative display screen of a program guide display in accordance with the present invention that a viewer may use to browse video-or.-demand proarams shown on the program guide display while continuing to view video of a previouslv selected channel ;n the backcround.
FIG. 6B is an illustrative display screen of a nrogram guide display in accordance with the present invention that a viewe- mav use to simultaneously:
(1) browse video-on-demand programs shown on the program guide display (2) view cf video clip of a video on demand program, and (3) view video of a previously selected channel in the background.
FIG. 7 is an illustrative display screen of a _oQram gL'iC2 display =:: GCccrdance with the erese:,--inventicn showing how the program presented in the program guide display may be automatically updated when the viewer changes the program category.
FIG. 8 is an illustrative configuration and control screen for the program guide system of the present invent}on.
FIG. 9 is a flow chart illustrating some of steps _~nvoived in providing browsing display screens in accordance with the present invert:en.

Detailed Description of the Preferred Embodiments A set of program guide display screens 1 provided by a conventional video-on-demand program guide system (not shown) is illustrated in FIGS.
lA-1C.
With this svstem, the viewer may view available video-on-demand program listings. When _nvoked, the program guide initially presents a category display 2, (shown ir, FIG. lA) on a display screen 3 --hat is overlaid en top of a program in progress 4. Category display 2 contains a series of video-on-demand program 2C categories 5 and an on-screen program select button 6.
The viewer may scroll through the available program categories 5 and choose a categorv cf interest usina certain remote control kevs (not shown) . A category of interest may also be seiected Lsin:a an on-screen selec-I
button 6.
When a category is chosen, the program guide presents a program display 7 (shown in FIG. 1B) on display screen 3 which is overlaid on top of program in progress 4. Displav 7 typically contains multiple program listings 8 from a selected category 11, each of which include a program ti-tle 9 and a program description box 1G. The viewer may view program listinas for video-on-demand programs using cursor keys on a remote ccntrol (not shown) to scroll through program listinas 6. If the viewer desires to order a particular video-on-demand program 9 shown on program guide display 7 (e.g., X-Files The Movie), the viewer may press an on-screer select button 12 or use a dedicated button on a remote ccntrc_' (not shown) Once a program is selected, the progra.:. guide display presents an order con,.irmation screen 13 (shown in FIG.
1C), which contains a selected proaram title 14, a price 16, and on-screen buttons 17 and 18. The viewer may order selected program 14 bv pressing YES key 1'7 or cancel the order by pressing NO key 18. The program order and also be confirmed or canceled using certa:in keys on a remote control (not shown).
There are a number of disadvantages associated with the arrangements of FIGS. lA-1C. For example, the program guide displays shown in FIGS. lA-1C do not allow the viewer to watch video :'rom a previously seiecteci channel wh_le viewing available video-on-demand programs. The viewer must leave any program,minc c,_,rrently in proqress and display full-screen procram Quide displays 2, 7, and 13 in order to select video-on-demand programs.
In addfzio:,, the viewer cannot: (1) chanqe program cateoory 11 while in program display 7 without first returr,ing tc the category browse screen 2, (2) choose a start time for a selected video-on-demand program, (3) view a video clip preview of a video-o:n-demard nroaram.
In contrast, the present invention provides a program c-,ice naving a browsing display that allows a viewer to browse through and select a video-on-deniand program from a list of available video-on-demand programs while continuing to view a previously selected television program. The viewer may select a video-on-demand program and choose a star-- time for that program. The viewer mav also view video clips of certain v;deo-o_n.-demand program ;isted on the program i0 guide.
The program guide display may be a single cell in width (i.e., in the horizontal dimension) and a"
single cell in length (i.e., in the vertical dimension). C-1r, if desired, multipie cells may be displayed containing multiple video-on-demand program listings. P. brief text program description may be provided in the cell -for displaying a description of the currently listed video-on-demand program. If the viewer desires to obtain more information about a particular video-on-demand program, he or she may direct the program auide to dispiay additiorial screens with detailed information about that program.
Ps illustrative program auide system 20 in accordance with the present invention is shown in FIG. 2. Proaram guide system 20 may include a mair.
facility 22, a regional television distribution facility 26, and user television equipment 30. Main facilitv 22 (which may be multiple facilities 22) contains a program guide database 24 for storing program auide information 21 such as video-on-demand program auioe listings data, ordering data, television proaram auide l:stings data, pay-per-view crdering informGtion, telev;sion program promotional informatior., etc. Such information may be arranged by a source identification code or address 25 and may also include a"tag" or other designation 27 to further identify the program type (i.e., video-on-demand, pay-per-view, etc.).
Ir._'ormation from program guide database 24 mav be transmitted to regional television distribution facili:y 26 via communications link 28. In alternate embodiments, however, some ji a'__ of database 24 may be contained within regional facility 26 (not shown).
Link 28 mav be a satellite link, a telephone networ}:
link, a cable or fiber optic link, a microwave link, a combination of such links, or anv other suitable communications path. If it is desired to transmit video signals over link 26 in addition to data signals, a relatively high bandwidth link such as a satellite link is qenerally preferable to a relatively low bandwidth link such as a telephone line.
Regional television distribution facility 26 is a facility for distributing te?evision signals to viewers, such as a cable system headend, a local rroadcast distribution fac_'_ity, cr a sate'_lite television distribution facilitv.
In the arrar.aement showr: in FIG. 2, a video server 29 may be included in dis-~ribution facility 26, which may contain a database 31 (FI(3. 3) of video-on-demand programs for supplying those programs to viewers. Video server 29 (FIG. 3) may be comprised of anv suitable digital, analog, or mixed digital and analog storaae and retrieval system 33 that can provide viewer te1evis;on ecuipment 30 wit:i a video signal of a requested program. Such systems may include (but are not limited to) video cassette recorder (VCR) systems, digital versatile disc systems (DVD) , laser disc systems, optical disc systems, magnetic tape and disc systems, and magneto-optical systems (such as a read/write digital disc systems), etc.
Video server 29 may also contain a controller 39, such as a networked computer system, which may be used in combir,at=on with the alDove-described storage and retiieval systems for processir.g video-on-demand program reauests. Some of the functions performed by controller unit 39 may include various interfacing and control tasks such as communicatina with other portions of program guide systems 20, receiving and transmitting billing information, checking program availability, queuing and coordinating program broadcast times, selecting and broadcasting requested programming, and routing selected programming to the requestor's location, etc.
Video servers 29 may be located at any suitable location in a given program guide system. For example, in FIG. 4, program guide system 40 is shown with video servers 29 placed in local television distribution facilities 41. Local distribution facilities 41 or "neighborhood nodes" may be used as intermediate distribution facilities coupled between reaional television distribution facilities 26 and viewer television equipment 30.
As shown in FIG. 4, regional television distribution facility 26 may distribute television programming and program guide information 21 to neighbcrhood nodes 41 which mav in turn distribute this inr'ormation periodicaliy, continucusly, or on request to viewer television equipment 30 via communications paths 32. If desired, program guide information 21 may be stored within local nodes 41 and may be distributed periodically, continuously, or on request to viewer television equipment 30 via communications paths 32 (not shown). ;n either type cf arrangement, television p=ogram.T;ng and program guide =nfcrmation can be distributed over analog television channels and orogram guide data may be distributed ove_ an out-of-band channel on paths 32. Data distribution may also involv_e using one or more digital channels on paths 32.
Such digital channels may also be used for distributing television programming and other i~formation.
By providing multiple neighborhood nodes 41, two important benefits are realized: (1) reduces the demand on individual video-on-dernand servers that may have a limited processing capac=ty, and (2) reduces the bandwidth requirement for communication paths 32.
Periodically, it may be necessary to update program database 31 to add recenz'_y released programs.
Rather than manually update databases 31 at their respective geographical 1-ocatior_s, video servers 29 mav be configured so that the contents of program databases 2' 31 can be remoi:ely updated. Oorr.r:~unication links 28 and/or 32 may be used to download new programs into databases 31. Such program tra;~s=ers may occur during periods of low program demand in order to minimize the effect on system viewers. For example, in FIGS. 2 and 4, main facility 22 may co:itain a database 23 of new programs for distribution among video server databases 31. Program guide systems 20 and 40 may -transmit these prcarams across communication links 28 to regional- television distributior, systems 26 that in turn mav route those programs to video servers 29 (possibly via communications links 32). Controller 39 may then direct storage and retrieval system 33 to update database 31 to contain those programs.
Program guide information 21 transmitted by main facility 22 to regional television distribution facility 26 may inc?ude televisici-, program listings data for current proarams, future programs, and video-on-demand programs. The program listings data for each program may include (but is not limited to) the title of the program, the channel for the program, a scheduled broadcast time (start-time) and an endina time (or duration). Other typical program data may include ratings, critics ratings, brief text descriptions, aenres (sports, movies, children, etc.), actors, etc. Transmitted proaram information may also include advertising information and pay program data such as pricing information for individual programs including VOD programs and subscription channels, time intervals for orderina programs and channels, telephone n:unbers fcr placing orders that cannot be impulse ordered, etc.
As shown in FIG. 2, reg'_onal television distribution facilitv 26 may distribute television programming and iDrogram guide information to viewer television equipment 30 of multiple viewers via communications paths 32. For example, television programming may be distributed over analog teievision channels and program guide data mav be distributed over an out-of-band channel cn paths 32. Data dist_ibutiori may also involve using one or more digital channels on paths 32. Suc:, diaital char.nels may aiso be used for distributing television programming and other information.
Viewer television equipment 30 typically contains set-top boxes 34. Viewer television equipment 30 may also be any suitable equipment into which circuitry simiiar to set-top box circuitrv has beer- integrated, Such as an advanced televisior.
receiver (such as HDTV), a personal computer televisior:
(PC/TV), or any other suitable television equipment.
Multiple television and audio channels (analog, digital, or both analog and diaital) may be provided to set-top boxes 34 via communications paths 32. If desired, program listings and other information may be distributed by one or more ciistriDution facilities that are similar to but separate from television distribution facility 26 using communications paths that are separate from communications paths 32.
Certain functions such as ordering video-on-demand programs may require set-top boxes 34 to transmit data to local distribution facilities 91.
(FIG. 4) and/cr regional distribution facilities 26 over communication paths 32. Such data may be 2~ transmitted over telephone lines, cable, or other separate communication paths. =F functions such as these are tirovided usina facilities separate from regiona2 television distritution facility 26, some of the communications involving set-top boxes 34 may be made directlv with the separate facilities.
Each set of viewer television equipmen-~ 30 may have the capzbilitv -~c simu_taneously recnive, decode, and displav two separate video signals. For example, viewer teievision equipment 30 may use a two-tuner set-top box. The tuners may have analog, digital, or mixed analog and diaital capabilities. If desired, any other suitable arrangement may be used to handle the simultaneous display of two video signals.
Proaram auide data 21 mav be distributed continuously, periodically, or cn demand to viewer television ecu_pment 30. RegionG. television i0 distribution facility 26 or neighborhood nodes 41 mav also poll viewer television equipment 30 periodically for certain information (e.g., pay program account information or information regarding programs that have been purchased and viewed using iocally-generated authorization techniques). Main facility 22 preferably contains a processor to handle information distribution tasks. Each viewer television equipment: 30 preferably contains a processor to handle tasks associated with implementing-an interactive television program guide on the viewer television equipment 30. Recional television distribution facilitv 26 and%or neighborhood nodes 41 may also contain a processor for tasks associated with monitoring a viewer's interactions with the interactive program guide implemented on set-top boxes 34 and fcr handling tasks associated with the distribution of program guide data and other information to viewer televisior~ equipment 30.
Each set-top box 34 in viewer television equipment 30 mav be connected to a videocassette recorder 36 and/or a home storage device 3S.
Videocassette recorder 36 allows selected television program.s to be reccrded. Each videocassette - 1~ -recorder 36 may be connected to a television 38. To record a progra:,, set-top box 34 sends control signals to videocassette recorder 36 (e.g., using an infrared transmitter) that directs videocassette recorder 36 to start and stop recording at the appropriate times.
Program guide system 20 or 40 may store certain information such as video-on-dernand Drograms and video-on-demand proaram data in home storage device 35 via~
set-top box 34.
1C During use c' the ir.terac-.ive television program guide implemented on set-top box 34, video-on-demand program listings and other information may be displayed cn television 38. Such program guide displays may be presented so as not 'Lo obscure a program to which the viewer has tuned with set-top box 34, or if desired, may be presented as an overlay on top of a porticn of a television program. Each set-top box 34, videocassette recorder 36, and television 38 may be controlled by one or more remote controls 50 or any other suitable viewer input interface such as a wireless keyboard, mouse, trackball, dedicated set of buttons, etc.
An iliustrative remote ccntrol 50 is shown in FIG. 5. Durinc normal operation, plav key 58 or VOD, browse key 51 may be used to toggle the program guide display on and off the main displav screen. Channel up and down kevs (channel keys) 57 mav be used to change the channel to which set-top box 34 is tuned. Up and down cursor keys 54a and 54b may be used to vertically scroll throuah the available video-on-demand programs on the proaram auide. Left and right cursor keys 54c and 54d mav be _,sed ':~o c'r.anoe the video-on-demand - ~7 -orogram category. Select key 52 or Buy key 56 may be used to make seiecticns such as when ordering video-on-demand programs by selecting one such program froni the available program listings. Numeric keys 60 may be used to directly seiect a desired program during both normal television viewing or while browsing video-on-demand programs.
V,'hile the program guide display is active, info kev ~ mav be used to invoke a detailed lD information screen to obtai. more information about a particular video-on-demand program. The detailed information screen may contain an on-screen button that may be used to request a particular video-on-demand program. Buv key 56 and/or OK ke;~ 55 may be used to activate the on-screen button and thereby order the video-on-demand program displayed on the detailed information screen. Exit to TV key 59 may be used to exit the program guide display and return to normal television viewing mode. Various other keys (not shown) may be used for functions such as controllina power, videocassette recorder (VCR) functions, volume control, etc. The keys for rernote control 50 of FIG. 5 represent just one illustrative example of a suitable remote control a.rrangement. Any other suitable remote control key arrangement may be used if desired.
Set-top box 34 can be directed to present program guide displav ~0 on main display screen 72.
Set-top box 34 may re-proportion (i.e., shrink) the amount of screen area used by current program 77 (channel ') such that main display screen 72 presents both program guide display 70 and current proaram 77 u~obscured (not showr.? . ?-'.owever, if desired, procrram - 1~ -guide display 70 may also be superimposed or, top of a portion of current program 77 as shown in FIG 6. This allows the viewer to simultaneously view video-on-demand program listings while viewing a television program on main display screen 72.
Video-on-demand program guide display 70 may be invoked using any suitabie technique such as by using a dedicated key on remote con:.rcl uni} 50 suc:,. as play key 5E, VOP browse key 1-1 (FIG. 5), or using an on screen button (not shown). nlternatively, guide 70 may be invoked by first entering a "normal browse mode"
(i.e., invoke a program auide display showing regularly broadcast programs) and then selec-~ a designated video-on-demand channel using the uo ar_d down cursor kevs 54a and 59b or numeric keys 60.
Program guide display 70 preferably contains information about a particular video-on-demand program.
If desired, such video-on-demand programs may be oraanized accordinc to certain categories 72 such as "recent releuses," "sitcoms," "action/adventure,"
"drama, " etc. In the example :.f :'?G. c, the viewer is viewing programs in the drama cateacry and information is displayed abcut a par:_cular drama program that is available on demand. The displavec _nformation may include (but is not l1mited to) the proaram title 76 (The Truman Show), the iength or "run-time" of that program 74 (110 minutes), a brief text description 73 of that procram, an icon 75 indicating that the program is indeed available on demand, ar. icon 79 indicating that a video clip is available for the listed video-on-demand program, rhe video-on-demand program number 77 (VOD ~;, and the Yrocrami' s ratinc 78 ( TV-Y ). More detailed information about a particular video-on-demand program may be avaiiabie by pressing info key 53 (FIG.
5). Such detailed information may include plot summary, actors and actresses, etc., and may appear on main screen 72 as a separate detailed information screen (not shown).
Although program guide display 70 is shown in FIG. 6 is only a singie cell or element in width (.i.e., ir the vertical dimension), and a single cell or element in length (i.e., in the ho.izontal dimension), it may also be displayed as multiple cells in either or both dimensions (not shown).
Each cell in program guide display 70 may include a program description box 73 that contains a brief text description of the program title(s) currently shown on guide 70. For example, in the arrangement shown in FIG. 6, the program title "The Truman Show" is shown, so program description box '13 contains a brief text description of The Truman Show program. The viewer may press info key 53 on remote 50 (FIG. 5) to obtain more detailed information about that program and/or to view other available options (not shown). Select key 52 or on screen button may be used to select the other options.
A viewer may navigate through the programs listings in a aiven video-on-demand category 72 by using any suitable key on remote 50 such as un and down cursor keys 54a and 54b (FIG. 5). This may cause program guide display 70 to display information about the next video-on-demand program in that category. For example, in FIG. 6, program guide display 70 is se't to the video-on-demand category "drama" and displays information about the first video-on-demand program (VOD 1) _n tha -_ category (The "_'rumar. Show) . I f the viewer presses up cursor key 54a once, video-on-demand program number 77 may increment and guide 70 will display information about the next program in that category (i.E., VOD 2). If a viewer presses up cursor key 54a aaair., video-on-demand program number 77 may =ncrement tc t:,,e next program ir. Lhat categorv (.i . e. , VCD 3) etc. Down cursc~ key 54b may operate in a similar fashion to decrement videc~-on-demand program 77.
Videc-on-demand category 72 may be changed by using any suitable kev on remote 50 such as right anci ieft cursor keys 54c and 54d (FIG. 5). This may cause proaram guide display 70 to display the first video-on-demand program in the next video-on-demand category 72.
For example, in FIG. 6, video-on-demand category 72 is set to "drama", and the first video-on-demand program.
(VOD 1) in that category is "The Truman Show." If the viewer presses right cursor key 54c once, video-on demand category 77 may change to another category such as "sitcoms," and information about the first program (VCD 1) in that cateoory is displaved (Seinfeld) . This is shown in FIG. 7. If right cursor key 54c is pressed again, category 72 may again increment to the next category (e.g., "recer.t releases"), etc. Left cursor key 54d may cperate in a similar :ashion with the provisicn that it scrolls categories 72 in an order opposite to that of right cursor key 54c. If desired, viewers may also directly tune program guide display 70 to a particular video-on-demand program in a given video-on-demar.d category 72 using ::umeri c)ceys 60.

Whiie program guide display 70 is active, the television program tc which set-top box 34 is currently tuned continues to be displayed on the main display screen 72. Although a viewer may scroll through ~ several videc-on-demand programs on program guide display 70, the video on main display screen 72 remains tuned to the proaram on channel S. However, each time a viewer scro_:s program guide display 70 to a new v_deo-or.-demand a rogram listing, program description ~0 box 7.: is updated to display information for the currently shown program. As a result, the viewer c:an watch a selected television program while browsing automatically updated text descriptions of video-on-demand programs. This feature may be particularlv 15 useful when, for example, one member of the household desires to browse video-on-demand programs while another household member desires to continue watchina a program in progress.
Certain video on demand programs may have 20 video clip previews associated with them. As shown in FIG. 6a, program guide display -J0 mav include a video clip icon 79 to indicate that the listed program has an associated video clip preview. If a viewer who is browsing the program listings on program guide 25 display 70 becomes interested in a particular video-on-demand program, he or she mav request a video clip of that orogram. For example, in FIG. 6, assume the viewer becomes inteYested in "The Truman Show" program.
By pressing anv appropriate key on remote 50 such as OK
30 kev 55 (FIG. 5;, the viewer can direct the program guide to request a video clip of that program from video server 29 (F IG. 3). After the video clip preview has been provided, the viewer may be presented with a display screer, inquiring whether the viewer wants to order that program (not shown). The viewer may accept or decline this offer by pressing any appropriate key on remote 50 (FIG. 5) or by using an on screen button (not shown).
If the viewer requests a video clip preview, the preview may be presented in - video window 71 so that program in progress 77 and prccram guide display 7J, and video window vi may all be viewed simultaneouslv (shown in FIG. 6b). However, in certain embodiments video window 71 may be a full screen displav or mav be viewer-selectable (i.e., can change from a fuil screen disp:Lay to a partial screen display and vice versa). Vicieb window 71- may be implemented using any suitable method such as a partial screen overlay, or a picture-in-picture video window, etc.
If a viewer who is browsing the program listings on program guide display 70 becomes interested in a particular video-on-demand program, he or she may reauest that program. For example, in FIG. 6, assume the viewer wants to request "The Truman Show" program.
Bv pressing any appropriate key cn remote 50 such as seiect key 52 (FIG. 5), the viewer can direct the program guide to request that program from video server 29 (FIG. 3). If zhe viewer happens to be browsing more information about a particular program on a detailed information screen (r.ct shown), that screen may contain an on-screen button for ordering that video-on-demand program. By pressing any appropriate kev on remote 50 such as buy key 56 (FIG. 5), the viewer mav activate the on-screen button and t:nerebv direct the program guide to reques~ that program from video server 29 (FIG. 3).
Once the viewer has requested a video-on-demand program, one or more confiaurati.on and control ~ screens mav appear which require viewer input to complete the order. As shown in FIG. 8, configuration and controi screen 80 may contain the title 81 and price 89 of the requested program and a series cf data fields fer viewe, input. Such da--E fields may include a purchase confirmation field 82, a parental control code field 84, a submit form field 8S, a program start-time field 86 and a start program now field 88. A
viewer may navigate through conficuration and control screen 80 using cursor kevs 54 and mav enter the 1S. required information into the data fields using appropriate keys on remote 50 (FIG. 5).
Certain data fields on configuration and control screen 80 may require inpu-. from numeric keys 60 on remote 50. For example, program start time field 86 mav recuire a numeric input to establish the desired start-time for the requested video-on-demand program. Start-time field 86 mav be a pull-down menu that presents a list of start-times (not shown) which may be selected using cursor keys 54 and a binary (yes/no) input key such as OK key S_E~) on remote 50.
Parental control code field 84 may also require a numeric input. Other data fields such as start program now field 88 and purchase confirmation field 82 mav also accept input from a binary input key such as OK
key 55 on remote 50.

When configsration and control screen 80 has been properlv filled out and.submi;..ted, the orderinc process is complete. The program guide system may provide a reply screen to con-firm the viewer's order (not shown).
If a selected video-on-demand program is not to start immediately, it may be fully or partially downloaded into local memory (e.g., in home storage device 35) to lessen the bandwidt'i required to transmit the procram and/or may be transmitted during a non-peak time. A:,:ice discour.z may be offered for such "advance orderinc" of u program (not shown).
Some of the steps involved in providing the browsing display features described herein are illustrated in the flow chart of FIG. 9. At step 100, the program auide provides the viewer with an option for invokina either the video-on-demand browsing mode or the norma.i browsing mode. If the viewer chooses to invoke the video-on-demand browsinq mode, program guide display 70 is dispiaved on viewer television equipment 30 at step 101. If the viewer chooses to invoke the normal browsina mode, the program guide displays a program auide display (not shown) on viewer televisior..
equipment 30, possiblv displaying a program listing reflecting the current channel.
Assumino video-on-demand browsing mode is chosen at step I011, program guide display 70 is displayed on viewer television equipment 30 at step 10i. When program guide display ~0 is initially displayed, it may be set to a"default" category and program listing, or it mav return to -oreviously selected cateaory and/or program. At step 102, the viewer may browse through the available program caregories ::s:r.c _eFt and ri4ht cursor keys S4d and 54c and/or browse the available programs in that category using up and dowr, cursor keys 54a and 54b. If a program of interest is not found in that category, a new category may be selected and the viewer may browse programs in that category. The viewer may continue to browse through the available categories and programs until a program of interest is found or may exit program cuide display 70 by pressinc the exit to TV key 59 on remote 50 (FIG. 5).
IC' If a video-on-dema-.d proQram of interest is found, the viewer has several options. For example, the viewer may: 1) request a video clip of the program, if available (e.g., using an on-screen button or remote contro, key), 2) request the prograzm (e.g., using an on-screen button or remote control key) or 3) request more information about that program by pressing info key 53 (step 103). If a video clip is requested, the video clip is presented on the viewer's display screen (step 102). If a video-on-demand program is requested, a configuration and control screen may appear which requires viewer input (step 109). The viewer may f.ill-out and submit this form to order the requested program.
At this point, the viewer may be returned to program guide display ~0 to browse more video-on-demand programs or, if desired, the viewer may press the e:xit to TV key to exit the program guide (step 105).
If the selected program has been set to start immediateiy, the program guide will provide the program immediately. However, if the selected program is ordered for a later time, the program guide may automGticGllv star,~ the procram at that later time.

Furthermore, the proorarn cuide may be configured to present a reminder screen (not shown) sometime before the selected program is to be shown so that the viewer is reminded of the scheduled start-time. When this reminder is received, the viewer may be given the option to: 1) watch the program at the scheduled time, 2) watci-, the program immediately, 'S) reschedule the z:)rocram to another t;me (e.g., by entering a new start-time or selecting a start-time frc:n a list prcvided by the program guide), or 4) c_.,r.;,el the selected program.
Although not specifically shown in the flow chart of FIG. 9, the viewer may at any time exit back tc the normal television viewing by pressing the exit tc TV key 59 on remote 50.
The foregoing is merely illustrative of the principles of this invention and various modifications can be made by those skilled in the art without departing from the scope and spirit of the invention.

Claims (65)

1. An interactive television program guide system implemented on viewer television equipment having a main display screen, comprising:

means for displaying a given television program on the viewer television equipment;

means for displaying a partial screen program guide display on the viewer television equipment at the same time that the given television program is displayed, the program guide display including at least one video-on-demand program listing; and means for requesting a video clip preview of at least one of the video-on-demand programs represented by the at least one video-on-demand program listing.
2. The interactive television program guide system defined in claim 1 further comprising means for displaying the program guide display as an overlay on top of the given television program.
3. The interactive television program guide system defined in claim 1 further comprising means for reducing the main display screen area occupied by the television program when the program guide display is active such that the television program may be viewed unobscured.
4. The interactive television program guide system defined in claim 1 further comprising means for allowing a viewer to browse through additional video-on-demand program listings available in the program guide using remote control keys.
5. The interactive television program guide system defined in claim 1 wherein the video-on-demand program listings are organized by category, further comprising means for allowing a viewer to browse through available categories in the program guide using remote control keys.
6. The interactive television program guide system defined in claim 1 further comprising means for allowing a viewer to direct the program guide system to display the program guide display on the main display screen using a remote control key.
7. The interactive television program guide system defined in claim 1 further comprising means for allowing a viewer to remove the program guide display from the main display screen and return to normal television viewing mode using a remote control key.
8. The interactive television program guide system defined in claim 1 further comprising means for providing more detailed information about a video-on-demand program using a remote control key.
9. The interactive television program guide system defined in claim 1 further comprising means for allowing a viewer to obtain more detailed information about a video-on-demand program by using a remote control key to display a detailed information screen on the main display screen.
10. The interactive television program guide system defined in claim 1 further comprising:

means for allowing a viewer to obtain more detailed information about a video-on-demand program by using a remote control info key to display a detailed information screen on the main display screen; and means for allowing the viewer to place an order for the video on demand program on the detailed information screen using a remote control key.
11. The interactive television program guide system defined in claim 1 further comprising means for allowing a viewer to change the television program shown on the viewer television equipment using remote control keys.
12. The interactive television program guide system defined in claim 1 wherein the system further comprises means for storing at least one video-on-demand program in a home storage device.
13. The interactive television program guide system defined in claim 12 wherein the system further comprises means for watching the video-on-demand program stored in the home storage device.
14. The interactive television program guide system defined in claim 1 wherein the system further comprises means for allowing a viewer to place an order for a video-on-demand program.
15. The interactive television program guide system defined in claim 1 further comprising means for indicating that a program displayed in the program guide display is available on demand.
16. The interactive television program guide system defined in claim 15 wherein the indicating means is an icon.
17. The interactive television program guide system defined in claim 14 wherein the ordering means further comprises means for allowing the viewer to set a start-time for the video-on-demand program.
18. The interactive television program guide system defined in claim 14 wherein the ordering means further comprises means for requiring the viewer to enter a parental control code to order the video-on-demand program.
19. The interactive television program guide system defined in claim 1 wherein the system further comprises:
means for allowing a viewer to place an order for a video-on-demand program;

means for allowing the viewer to select a start-time for an ordered video-on-demand program; and means for automatically starting the ordered video-on-demand program at the viewer selected start-time.
20. The interactive television program guide system defined in claim 19 wherein the system further comprises means for reminding the viewer of the start-time for the ordered program.
21. The interactive television program guide system defined in claim 19 wherein the system further comprises:
means for reminding the viewer of the start-time for the ordered video-on-demand program; and means for providing the viewer with an option to watch the ordered program immediately.
22. The interactive television program guide system defined in claim 19 wherein the system further comprises:
means for reminding the viewer of the start-time for the ordered program; and means for providing the viewer with an option to watch the ordered video-on-demand program at the selected start-time.
23. The interactive television program guide system defined in claim 19 wherein the system further comprises:
means for reminding the viewer of the start-time for the ordered program; and means for providing the viewer with an option to select a new start-time for the ordered video-on-demand program.
24. The interactive television program guide system defined in claim 19 wherein the system further comprises:
means for reminding the viewer of the start-time for the ordered program; and means for providing the viewer with an option to select a new start-time for the ordered program from a list of start-times provided by the program guide.
25. The interactive television program guide system defined in claim 19 wherein the system further comprises:
means for reminding the viewer of the start-time for the ordered program; and means for providing the viewer with an option to enter a viewer-defined start-time for the ordered program.
26. The interactive television program guide system defined in claim 19 wherein the system further comprises:

means for reminding the viewer of the start-time for the ordered program; and means for providing the viewer with an option to cancel the ordered program.
27. The interactive television program guide system defined in claim 1 further comprising means for indicating that the video clip preview is available for at least one of the video-on-demand programs represented by the at least one video-on-demand program listing.
28. The interactive television program guide system defined in claim 27 wherein the indicating means is an icon.
29. The interactive television program guide system defined in claim 1 further comprising means for displaying a requested video clip preview in a video window.
30. The interactive television program guide system defined in claim 29 further comprising means for automatically displaying a purchase screen immediately after the requested video clip preview is displayed.
31. The interactive television program guide system defined in claim 1 further comprising means for displaying a requested video clip preview in a full screen window.
32. The interactive television program guide system defined in claim 1 further comprising means for displaying a requested video clip preview in a partial screen video window while the partial screen program guide display is displayed.
33. The interactive television program guide system defined in claim 32 further comprising means for displaying a given television program while the partial screen video window and the partial screen program guide display are displayed.
34. A method for using an interactive television program guide system implemented on viewer television equipment having a main display screen comprising the steps of:

simultaneously displaying on the main display screen a television program and a partial screen program guide display including at least one video-on-demand program listing;

allowing the viewer to browse through available program listings in the program guide; and allowing the viewer to request a video clip preview of at least one of the video-on-demand programs represented by the at least one video-on-demand program listing.
35. The method defined in claim 34 wherein the simultaneously displaying further comprises displaying the program guide display as an overlay on top of the given television program.
36. The method defined in claim 34 wherein the simultaneously displaying further comprises reducing the main display screen area occupied by the television program when the program guide display is active such that the television program may be viewed unobscured.
37. The method defined in claim 34 wherein the video-on-demand program listings in the program guide are organized by category, the browsing further comprising allowing the viewer to browse through the available categories in the program guide display using remote control keys.
38. The method defined in claim 34 wherein the simultaneously displaying step further comprises displaying the program guide on the main display screen when the viewer presses a remote control key.
39. The method defined in claim 34 wherein the simultaneously displaying further comprises removing the program guide display from the main display screen and returning to normal television viewing mode when the viewer presses a remote control key.
40. The method defined in claim 34 wherein the browsing further comprises providing the viewer with more detailed information about a video-on-demand program when the viewer presses a remote control key.
41. The method defined in claim 40 wherein the providing further comprises displaying a detailed information screen on the main display screen.
42. The method defined in claim 34 wherein the displaying step further comprises allowing a viewer to place an order for the video-on-demand program shown on the detailed information screen using a remote control key.
43. The method defined in claim 34 further comprising allowing the viewer to watch other available television programs using remote control keys.
44. The method defined in claim 34 wherein the browsing further comprises allowing a viewer to place an order for a video-on-demand program displayed in the program guide display.
45. The method defined in claim 44 wherein the ordering further comprises allowing the viewer to set a start-time for an ordered video-on-demand program.
46. The method defined in claim 44 wherein the ordering further comprises allowing the viewer to enter a parental control code.
47. The method defined in claim 44 wherein the ordering further comprises storing the at least some of an ordered video-on-demand program in a home storage device.
48. The method defined in claim 47 further comprising allowing the viewer to watch the video-on-demand program stored in the home storage device.
49. The method defined in claim 34 wherein the simultaneously displaying further comprises indicating that the program displayed in the program guide display is available on demand.
50. The method defined in claim 49 wherein the indicating further comprises using an icon.
51. The method defined in claim 34 wherein the displaying further comprises:

allowing the viewer to place an order for a video-on-demand program represented by the video-on-demand program listing displayed in the program guide display;

allowing the viewer to select a start-time for the video-on-demand program ordered by a viewer; and automatically starting the ordered video-on-demand program at the viewer selected start-time.
52. The method defined in claim 51 wherein the automatically starting further comprises reminding the viewer of the start-time for the ordered program.
53. The method defined in claim 51 wherein the automatically starting further comprises:

reminding the viewer of the start-time for the ordered program; and providing the viewer with an option to watch the ordered program immediately.
54. The method defined in claim 51 wherein the automatically starting further comprises:

reminding the viewer of the start-time for the ordered program; and providing the viewer with an option to watch the ordered program at the selected start-time.
55. The method defined in claim 51 wherein the starting further comprises:

reminding the viewer of the start-time for the ordered program; and providing the viewer with an option to select a new start-time for the ordered program.
56. The method defined in claim 51 wherein the starting further comprises:

reminding the viewer of the start-time for the ordered program; and providing the viewer with an option to select a new start-time for the ordered program from a list of start-times provided by the program guide.
57. The method defined in claim 51 wherein the starting further comprises:

reminding the viewer of the start-time for the ordered program; and providing the viewer with an option to enter a viewer-defined start-time for the ordered program.
58. The method defined in claim 51 wherein the starting further comprises:

reminding the viewer of the start-time for the ordered program; and providing the viewer with an option to cancel the ordered program.
59. The method defined in claim 34 wherein the simultaneous displaying further comprises indicating that the video clip preview is available for at least one of the video-on-demand programs represented by the at least one video-on-demand program listing.
60. The method defined in claim 59 wherein the indicating further comprises using an icon.
61. The method defined in claim 34 further comprising displaying a requested video clip preview in a video window.
62. The method defined in claim 61 further comprising automatically displaying a purchase screen immediately after the requested video clip preview is displayed.
63. The method defined in claim 34 further comprising displaying a requested video clip preview in a full screen video window.
64. The method defined in claim 34 further comprising displaying a requested video clip preview in a partial screen video window while the partial screen program guide display is displayed.
65. The method defined in claim 64 further comprising displaying a given television program while the partial screen video window and the partial screen program guide display are displayed.
CA2583078A 1998-05-19 1999-05-18 Program guide system with video-on-demand browsing Expired - Lifetime CA2583078C (en)

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US8604698P 1998-05-19 1998-05-19
US60/086,046 1998-05-19
US09/262,870 US7603684B1 (en) 1998-05-19 1999-03-04 Program guide system with video-on-demand browsing
US09/262,870 1999-03-04
CA002509937A CA2509937C (en) 1998-05-19 1999-05-18 Program guide system with video-on-demand browsing

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CA2797662A Expired - Lifetime CA2797662C (en) 1998-05-19 1999-05-18 Program guide system with video-on-demand browsing
CA002509937A Expired - Lifetime CA2509937C (en) 1998-05-19 1999-05-18 Program guide system with video-on-demand browsing
CA002332343A Expired - Lifetime CA2332343C (en) 1998-05-19 1999-05-18 Program guide system with video-on-demand browsing
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CA2797662A Expired - Lifetime CA2797662C (en) 1998-05-19 1999-05-18 Program guide system with video-on-demand browsing
CA002509937A Expired - Lifetime CA2509937C (en) 1998-05-19 1999-05-18 Program guide system with video-on-demand browsing
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