US Patent No: 4,894,714

Number of patents in Portfolio can not be more than 2000

Apparatus using teletext to provide channel identification information in a television transmission system

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

In a television transmission system, for example, a community antenna television system the transmitter station transmits a teletext page in an information channel, which page indicates in which TV channels this transmitter station transmits programmes. A receiver associated with this system is directly tuned, after switching on, to this information channel or starts a searching action for this channel. Once tuned to this information channel the relevant teletext page is captured and the information regarding the TV channels is separated therefrom, decoded and stored in the form of tuning data in a tuning data memory. Each tuning datum corresponds to one of these TV channels. In this manner the tuning data memory is automatically programmed, i.e. without the users' interposition, for all receivable TV programmes.

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First Claim

Related Publications

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Patent Owner(s)

Patent OwnerAddressTotal Patents
U.S. PHILIPS CORPORATIONNEW YORK, NY11382

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Christis, Wilhelmus J Eindhoven, NL 4 44

Cited Art

Patent Info (Count) # Cites Year
 
STARSIGHT TELECAST, INC. (1)
4,706,121 TV schedule system and process 916 1986
 
SWF AUTO-ELECTRIC GMBH (1)
4,701,971 Windshield wiper system 4 1985
 
U.S. PHILIPS CORPORATION (1)
4,701,794 Television receiver comprising a teletext decoding circuit and a page number memory 128 1985
 
USA DIGITAL RADIO, INC. (1)
4,698,670 Cable stereo apparatus 45 1986
 
ZENITH ELECTRONICS CORPORATION (1)
4,527,194 Channel assignment for CATV system 132 1983
 
ZENITH RADIO CORPORATION (1)
4,600,921 Full-field teletext system with dynamic addressability 144 1983

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
U.S. PHILIPS CORPORATION (9)
4,991,017 Receiver for television and teletext signals, including a teletext decoder and an adaptive waiting time reduction circuit 9 1990
5,119,200 Television receiver for selectively blocking video signal samples via stored blanking signals 9 1990
5,430,552 Device for programming a video recorder and video recorder comprising the device 66 1992
5,579,061 Transmitter for transmitting tuning data in a television signal and receiver for receiving same 3 1994
5,649,285 Transmission of tuning data of broadcasting transmitters to a receiver to facilitate automated set-up of the receiver based on receivable transmitters in a reception area 6 1995
5,757,414 Television receiver 13 1995
5,781,245 Merging of video mosaic with teletext 29 1996
6,025,887 Transmitter for transmitting tuning data in a television signal and receiver for receiving same 1 1996
6,252,635 Automatic tuning frequency or channel number installation 1 1999
 
VERIZON SERVICES CORP. (5)
5,734,589 Digital entertainment terminal with channel mapping 179 1995
5,583,863 Full service network using asynchronous transfer mode multiplexing 115 1995
5,666,293 Downloading operating system software through a broadcast channel 460 1995
5,768,539 Downloading applications software through a broadcast channel 238 1996
5,978,855 Downloading applications software through a broadcast channel 181 1997
 
SCIENTIFIC-ATLANTA, INC. (3)
5,239,540 Method and apparatus for transmitting, receiving and communicating digital data signals with corresponding program data signals which describe the digital data signals 208 1990
5,675,575 Method and apparatus for communicating different types of data in a data stream 71 1995
6,055,244 Method and apparatus for communicating different types of data in a data stream 19 1995
 
EEG ENTERPRISES, INC. (2)
5,596,372 Video signal data and composite synchronization extraction circuit for on-screen display 25 1995
5,760,844 Video signal data and composite synchronization extraction circuit for on-screen display 17 1996
 
GEMSTAR DEVELOPMENT CORPORATION (2)
5,640,484 Switch for automatic selection of television signal sources for delivery of television guide data 45 1994
6,341,195 Apparatus and methods for a television on-screen guide 68 1997
 
INDEX SYSTEMS, INC. (2)
8,122,471 Method and apparatus for transmitting and downloading setup information 0 2006
8,296,807 Method and apparatus for transmitting and downloading setup information 0 2011
 
BELL ATLANTIC VIDEO SERVICES, INC. (1)
5,659,793 Authoring tools for multimedia application development and network delivery 165 1994
 
FLORESCERE ASSETS LIMITED LIABILITY COMPANY (1)
5,826,102 Network arrangement for development delivery and presentation of multimedia applications using timelines to integrate multimedia objects and program objects 115 1996
 
GENERAL INSTRUMENT CORPORATION (1)
6,057,874 Infrared blaster control system in cable television communication systems 45 1996
 
IMAGINATION TECHNOLOGIES LIMITED (1)
5,359,367 Personal computer with broadcast receiver on expansion board controlled by computer microprocessor 152 1992
 
KONINKLIJKE PHILIPS ELECTRONICS N.V. (1)
5,524,271 Presentation system for messages that provide information on demand and transmitter station and receiver station for use in such presentation system 5 1995
 
LOEWE-OPTA GMBH (1)
6,091,456 Method for the setting-up of an electronic program journal and circuit therefor 7 1996
 
NOKIA UNTERHALTUNGSELEKTRONIK (DEUTSCHLAND) GMBH (1)
5,231,493 Video receiver with permanent electronic program journal 142 1990
 
RCA THOMSON LICENSING CORPORATION (1)
5,956,455 Fault tolerant VCR recording control 21 1995
 
SAMSUNG ELECTRONICS CO., LTD. (1)
5,296,931 Channel selecting method for programs of the same category 52 1992
 
SANYO ELECTRIC CO., LTD. (1)
5,526,127 Video tape recorder which allows preset program recording 28 1994
 
TECHNOLOGY DEVELOPMENT & LICENSING, LLC (1)
5,963,269 Apparatus for controlling a television receiver using a plurality of stored labels 16 1995
 
VERIZON COMMUNICATIONS INC. (1)
5,635,979 Dynamically programmable digital entertainment terminal using downloaded software to control broadband data operations 187 1994