CA1010989A - Method and apparatus for effecting digital signalling over television signal channels - Google Patents

Method and apparatus for effecting digital signalling over television signal channels

Info

Publication number
CA1010989A
CA1010989A CA207,176A CA207176A CA1010989A CA 1010989 A CA1010989 A CA 1010989A CA 207176 A CA207176 A CA 207176A CA 1010989 A CA1010989 A CA 1010989A
Authority
CA
Canada
Prior art keywords
television signal
signal channels
signalling over
digital signalling
over television
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
Application number
CA207,176A
Other versions
CA207176S (en
Inventor
Henry L. Baker
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.)
Communications Patents Ltd
Original Assignee
Communications Patents Ltd
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 Communications Patents Ltd filed Critical Communications Patents Ltd
Application granted granted Critical
Publication of CA1010989A publication Critical patent/CA1010989A/en
Expired 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
    • H04N7/084—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 horizontal blanking interval only
    • H04N7/085—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 horizontal blanking interval only the inserted signal being digital

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)
CA207,176A 1973-08-17 1974-08-16 Method and apparatus for effecting digital signalling over television signal channels Expired CA1010989A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3892673A GB1478960A (en) 1973-08-17 1973-08-17 Method and apparatus for effecting digital signalling over television signal channels

Publications (1)

Publication Number Publication Date
CA1010989A true CA1010989A (en) 1977-05-24

Family

ID=10406528

Family Applications (1)

Application Number Title Priority Date Filing Date
CA207,176A Expired CA1010989A (en) 1973-08-17 1974-08-16 Method and apparatus for effecting digital signalling over television signal channels

Country Status (4)

Country Link
CA (1) CA1010989A (en)
GB (1) GB1478960A (en)
IT (1) IT1018843B (en)
NL (1) NL7411027A (en)

Also Published As

Publication number Publication date
GB1478960A (en) 1977-07-06
IT1018843B (en) 1977-10-20
NL7411027A (en) 1975-02-19

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