DE69228085T2 - Virtuelle Kanäle für ein Multiplexanalogkomponentenfernsehsystem (MAC) - Google Patents

Virtuelle Kanäle für ein Multiplexanalogkomponentenfernsehsystem (MAC)

Info

Publication number
DE69228085T2
DE69228085T2 DE69228085T DE69228085T DE69228085T2 DE 69228085 T2 DE69228085 T2 DE 69228085T2 DE 69228085 T DE69228085 T DE 69228085T DE 69228085 T DE69228085 T DE 69228085T DE 69228085 T2 DE69228085 T2 DE 69228085T2
Authority
DE
Germany
Prior art keywords
channel
virtual channels
television system
mac
virtual
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 - Fee Related
Application number
DE69228085T
Other languages
English (en)
Other versions
DE69228085D1 (de
Inventor
Robert Yoneda
Keith Gammie
Wayne C O Scientific Sheldrick
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.)
Scientific Atlanta LLC
Original Assignee
Scientific Atlanta LLC
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 Scientific Atlanta LLC filed Critical Scientific Atlanta LLC
Application granted granted Critical
Publication of DE69228085D1 publication Critical patent/DE69228085D1/de
Publication of DE69228085T2 publication Critical patent/DE69228085T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/083—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical and the horizontal blanking interval, e.g. MAC data signals
    • 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
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
    • H04N5/602—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for digital sound signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
    • H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H04N7/0882—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital for the transmission of character code signals, e.g. for teletext
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
    • H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H04N7/0888—Subscription systems therefor
    • 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
    • H04N7/17345—Control of the passage of the selected programme
    • H04N7/17363—Control of the passage of the selected programme at or near the user terminal
DE69228085T 1991-03-29 1992-03-27 Virtuelle Kanäle für ein Multiplexanalogkomponentenfernsehsystem (MAC) Expired - Fee Related DE69228085T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/677,555 US5200823A (en) 1991-03-29 1991-03-29 Virtual channels for a multiplexed analog component (mac) television system

Publications (2)

Publication Number Publication Date
DE69228085D1 DE69228085D1 (de) 1999-02-18
DE69228085T2 true DE69228085T2 (de) 1999-08-26

Family

ID=24719197

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69228085T Expired - Fee Related DE69228085T2 (de) 1991-03-29 1992-03-27 Virtuelle Kanäle für ein Multiplexanalogkomponentenfernsehsystem (MAC)

Country Status (5)

Country Link
US (1) US5200823A (de)
EP (1) EP0508654B1 (de)
AT (1) ATE175539T1 (de)
AU (1) AU643926B2 (de)
DE (1) DE69228085T2 (de)

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Also Published As

Publication number Publication date
AU643926B2 (en) 1993-11-25
EP0508654A2 (de) 1992-10-14
AU1383992A (en) 1992-11-05
EP0508654B1 (de) 1999-01-07
EP0508654A3 (en) 1994-05-25
US5200823A (en) 1993-04-06
ATE175539T1 (de) 1999-01-15
DE69228085D1 (de) 1999-02-18

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