CA993993A - Television system for transmitting two or more pictures along a common communication channel - Google Patents

Television system for transmitting two or more pictures along a common communication channel

Info

Publication number
CA993993A
CA993993A CA181,722A CA181722A CA993993A CA 993993 A CA993993 A CA 993993A CA 181722 A CA181722 A CA 181722A CA 993993 A CA993993 A CA 993993A
Authority
CA
Canada
Prior art keywords
transmitting
communication channel
television system
common communication
pictures along
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
CA181,722A
Other versions
CA181722S (en
Inventor
Gerald H. Askew
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.)
Post Office
Original Assignee
Post Office
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 Post Office filed Critical Post Office
Application granted granted Critical
Publication of CA993993A publication Critical patent/CA993993A/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
    • H04N7/0806—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 the signals being two or more video signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/2624—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects for obtaining an image which is composed of whole input images, e.g. splitscreen

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
CA181,722A 1972-09-28 1973-09-24 Television system for transmitting two or more pictures along a common communication channel Expired CA993993A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4480172A GB1438293A (en) 1972-09-28 1972-09-28 Television system for transmitting two or more pictures along a common communication channel

Publications (1)

Publication Number Publication Date
CA993993A true CA993993A (en) 1976-07-27

Family

ID=10434811

Family Applications (1)

Application Number Title Priority Date Filing Date
CA181,722A Expired CA993993A (en) 1972-09-28 1973-09-24 Television system for transmitting two or more pictures along a common communication channel

Country Status (3)

Country Link
CA (1) CA993993A (en)
GB (1) GB1438293A (en)
NL (1) NL7313434A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3401811A1 (en) * 1984-01-19 1985-08-01 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Method for electronically transmitting several images on one transmission channel
GB2209106A (en) * 1987-08-25 1989-04-26 David Lawrence Allen A dual screen television system
US4890314A (en) * 1988-08-26 1989-12-26 Bell Communications Research, Inc. Teleconference facility with high resolution video display
US5260779A (en) * 1992-02-21 1993-11-09 Control Automation, Inc. Method and apparatus for inspecting a printed circuit board
FR2761562B1 (en) * 1997-03-27 2004-08-27 France Telecom VIDEO CONFERENCE SYSTEM

Also Published As

Publication number Publication date
AU6090473A (en) 1975-04-10
GB1438293A (en) 1976-06-03
NL7313434A (en) 1974-04-01

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