GB1438293A - 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
GB1438293A
GB1438293A GB4480172A GB4480172A GB1438293A GB 1438293 A GB1438293 A GB 1438293A GB 4480172 A GB4480172 A GB 4480172A GB 4480172 A GB4480172 A GB 4480172A GB 1438293 A GB1438293 A GB 1438293A
Authority
GB
United Kingdom
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
GB4480172A
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
Priority to GB4480172A priority Critical patent/GB1438293A/en
Priority to CA181,722A priority patent/CA993993A/en
Priority to NL7313434A priority patent/NL7313434A/xx
Priority to AU60904/73A priority patent/AU489615B2/en
Publication of GB1438293A publication Critical patent/GB1438293A/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)
GB4480172A 1972-09-28 1972-09-28 Television system for transmitting two or more pictures along a common communication channel Expired GB1438293A (en)

Priority Applications (4)

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
CA181,722A CA993993A (en) 1972-09-28 1973-09-24 Television system for transmitting two or more pictures along a common communication channel
NL7313434A NL7313434A (en) 1972-09-28 1973-09-28
AU60904/73A AU489615B2 (en) 1972-09-28 1973-10-02 Television system for transmitting two or more pictures along a common communication channel

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
GB1438293A true GB1438293A (en) 1976-06-03

Family

ID=10434811

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4480172A Expired GB1438293A (en) 1972-09-28 1972-09-28 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)

Cited By (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
WO1990002466A1 (en) * 1988-08-26 1990-03-08 Bell Communications Research, Inc. Teleconference facility with high resolution video display
EP0557227A2 (en) * 1992-02-21 1993-08-25 CONTROL AUTOMATION, Inc. Method and apparatus for inspecting a printed circuit board
US6624841B1 (en) * 1997-03-27 2003-09-23 France Telecom Videoconference system

Cited By (6)

* 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
WO1990002466A1 (en) * 1988-08-26 1990-03-08 Bell Communications Research, Inc. Teleconference facility with high resolution video display
EP0557227A2 (en) * 1992-02-21 1993-08-25 CONTROL AUTOMATION, Inc. Method and apparatus for inspecting a printed circuit board
EP0557227A3 (en) * 1992-02-21 1994-08-17 Control Automation Inc Method and apparatus for inspecting a printed circuit board
US6624841B1 (en) * 1997-03-27 2003-09-23 France Telecom Videoconference system

Also Published As

Publication number Publication date
AU6090473A (en) 1975-04-10
NL7313434A (en) 1974-04-01
CA993993A (en) 1976-07-27

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19930909