CA2171820A1 - Motion Picture Reproducing System by Bidirectional Communication - Google Patents

Motion Picture Reproducing System by Bidirectional Communication

Info

Publication number
CA2171820A1
CA2171820A1 CA2171820A CA2171820A CA2171820A1 CA 2171820 A1 CA2171820 A1 CA 2171820A1 CA 2171820 A CA2171820 A CA 2171820A CA 2171820 A CA2171820 A CA 2171820A CA 2171820 A1 CA2171820 A1 CA 2171820A1
Authority
CA
Canada
Prior art keywords
terminal
bit map
motion picture
codes
bidirectional communication
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.)
Granted
Application number
CA2171820A
Other languages
French (fr)
Other versions
CA2171820C (en
Inventor
Hiroaki Ueda
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.)
Acer Inc
Original Assignee
NEC Corp
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
Application filed by NEC Corp filed Critical NEC Corp
Publication of CA2171820A1 publication Critical patent/CA2171820A1/en
Application granted granted Critical
Publication of CA2171820C publication Critical patent/CA2171820C/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
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • 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
    • H04N7/17336—Handling of requests in head-ends
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/93—Regeneration of the television signal or of selected parts thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/147—Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • 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

Abstract

A motion picture reproducing system by bidirectional communication, in which characters and graphics are separately encoded to reproduce high quality images. A video server transmits the motion picture codes of the desired video to a terminal in response to a request from the terminal. At that time, by checking a terminal registration information file, it is discriminated whether or not a bit map of the characters and the graphics stored in the user region of the motion picture codes is registered is the terminal. When the bit map is not registered in the terminal, the bit map data are transmitted to the terminal by a bit map encoder. The terminal reads out bit map codes stored in the user region of the motion picture codes and reproduces the bit map data in a bit map decoder. An optimum encoding can be carried out and a code size can be further compressed.
CA 2171820 1995-03-17 1996-03-14 Motion picture reproducing system by bidirectional communication Expired - Lifetime CA2171820C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5882395A JP2838980B2 (en) 1995-03-17 1995-03-17 Video playback system with two-way communication
JP7-58823 1995-03-17

Publications (2)

Publication Number Publication Date
CA2171820A1 true CA2171820A1 (en) 1996-09-18
CA2171820C CA2171820C (en) 1999-11-30

Family

ID=13095365

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2171820 Expired - Lifetime CA2171820C (en) 1995-03-17 1996-03-14 Motion picture reproducing system by bidirectional communication

Country Status (7)

Country Link
US (1) US5699472A (en)
EP (1) EP0732851B1 (en)
JP (1) JP2838980B2 (en)
KR (1) KR100218557B1 (en)
AU (1) AU700680B2 (en)
CA (1) CA2171820C (en)
DE (1) DE69615886T2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7015945B1 (en) * 1996-07-10 2006-03-21 Visilinx Inc. Video surveillance system and method
DE19718658A1 (en) * 1997-05-02 1998-11-05 Philips Patentverwaltung Method for identifying video data and video data memories with means for generating a video data code
FR2778300A1 (en) * 1998-04-29 1999-11-05 Thomson Multimedia Sa Reading of computer data to form images by synthesis for display on a television screen
EP1018840A3 (en) 1998-12-08 2005-12-21 Canon Kabushiki Kaisha Digital receiving apparatus and method
US6889383B1 (en) 2000-10-23 2005-05-03 Clearplay, Inc. Delivery of navigation data for playback of audio and video content
US7975021B2 (en) 2000-10-23 2011-07-05 Clearplay, Inc. Method and user interface for downloading audio and video content filters to a media player
US6898799B1 (en) * 2000-10-23 2005-05-24 Clearplay, Inc. Multimedia content navigation and playback
KR20020043843A (en) * 2000-12-04 2002-06-12 신재보 Method for mutimedia information service using the dot-code and system therefor
KR20020077987A (en) * 2001-04-03 2002-10-18 (주) 아이빌소프트 System and method for transmitting multimedia contents with automatic execution agent
AU2004304818A1 (en) 2003-10-22 2005-07-07 Clearplay, Inc. Apparatus and method for blocking audio/visual programming and for muting audio
CN101494077B (en) 2004-05-11 2012-09-05 松下电器产业株式会社 Reproduction device
US8117282B2 (en) 2004-10-20 2012-02-14 Clearplay, Inc. Media player configured to receive playback filters from alternative storage mediums
JP5356812B2 (en) * 2005-07-06 2013-12-04 トムソン ライセンシング Method and apparatus for encoding video content including image sequences and logos

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57192187A (en) * 1981-05-21 1982-11-26 Nippon Telegr & Teleph Corp <Ntt> Character transmitting system
JPS57192188A (en) * 1981-05-21 1982-11-26 Nippon Telegr & Teleph Corp <Ntt> Character transmitting system
JP2851850B2 (en) * 1988-04-25 1999-01-27 パイオニア株式会社 Recording and playback method of image information
JP3036099B2 (en) * 1991-01-30 2000-04-24 日本電気株式会社 Data management methods
JPH05300495A (en) * 1992-04-20 1993-11-12 Nec Home Electron Ltd Image coding device
US5471316A (en) * 1992-06-18 1995-11-28 Pioneer Electronic Corporation Adaptive system for selectively recording from a plurality of video sources and method thereof
US5539449A (en) * 1993-05-03 1996-07-23 At&T Corp. Integrated television services system
CA2127347A1 (en) * 1993-07-07 1995-01-08 Donald F. Hooper Segmented video on-demand system
JPH0779424A (en) * 1993-09-06 1995-03-20 Hitachi Ltd Multi-point video communication equipment
US5594490A (en) * 1994-05-23 1997-01-14 Cable Services Technologies, Inc. System for distributing video/audio files from central location to a plurality of cable headends
JPH07327093A (en) * 1994-06-01 1995-12-12 Ekushingu:Kk Data transmitter
US5621455A (en) * 1994-12-01 1997-04-15 Objective Communications, Inc. Video modem for transmitting video data over ordinary telephone wires
US5630204A (en) * 1995-05-01 1997-05-13 Bell Atlantic Network Services, Inc. Customer premise wireless distribution of broad band signals and two-way communication of control signals over power lines
US5621729A (en) * 1995-06-07 1997-04-15 Geophonic Networks, Inc. Receiver controlled communication system

Also Published As

Publication number Publication date
JPH08256322A (en) 1996-10-01
KR960036790A (en) 1996-10-28
AU4812496A (en) 1996-09-26
JP2838980B2 (en) 1998-12-16
EP0732851B1 (en) 2001-10-17
US5699472A (en) 1997-12-16
KR100218557B1 (en) 1999-09-01
CA2171820C (en) 1999-11-30
DE69615886T2 (en) 2002-05-29
AU700680B2 (en) 1999-01-14
DE69615886D1 (en) 2001-11-22
EP0732851A1 (en) 1996-09-18

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20160314

MKEX Expiry

Effective date: 20160314