CA868572A - Video switching circuit - Google Patents

Video switching circuit

Info

Publication number
CA868572A
CA868572A CA868572A CA868572DA CA868572A CA 868572 A CA868572 A CA 868572A CA 868572 A CA868572 A CA 868572A CA 868572D A CA868572D A CA 868572DA CA 868572 A CA868572 A CA 868572A
Authority
CA
Canada
Prior art keywords
switching circuit
video switching
video
circuit
switching
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
CA868572A
Inventor
D. Ross John
Akiyama Kimiharu
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.)
Central Dynamics Ltd
Original Assignee
Central Dynamics 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 Central Dynamics Ltd filed Critical Central Dynamics Ltd
Application granted granted Critical
Publication of CA868572A publication Critical patent/CA868572A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04N5/268—Signal distribution or switching
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/62—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors
    • H03K17/6221—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors combined with selecting means

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
CA868572A 1968-04-11 1968-04-11 Video switching circuit Expired CA868572A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA17412 1968-04-11

Publications (1)

Publication Number Publication Date
CA868572A true CA868572A (en) 1971-04-13

Family

ID=4084180

Family Applications (1)

Application Number Title Priority Date Filing Date
CA868572A Expired CA868572A (en) 1968-04-11 1968-04-11 Video switching circuit

Country Status (1)

Country Link
CA (1) CA868572A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0006622A2 (en) * 1978-06-29 1980-01-09 Siemens Aktiengesellschaft Circuit for selectively through-connecting or blocking broad-band signals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0006622A2 (en) * 1978-06-29 1980-01-09 Siemens Aktiengesellschaft Circuit for selectively through-connecting or blocking broad-band signals
EP0006622A3 (en) * 1978-06-29 1980-01-23 Siemens Aktiengesellschaft Berlin Und Munchen Circuit for selectively through-connecting or blocking broad-band signals

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