GB1387983A - Dc-insulating video signal transmission circuit - Google Patents

Dc-insulating video signal transmission circuit

Info

Publication number
GB1387983A
GB1387983A GB4989973A GB4989973A GB1387983A GB 1387983 A GB1387983 A GB 1387983A GB 4989973 A GB4989973 A GB 4989973A GB 4989973 A GB4989973 A GB 4989973A GB 1387983 A GB1387983 A GB 1387983A
Authority
GB
United Kingdom
Prior art keywords
video signal
circuit
insulating
signal transmission
coupled
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
GB4989973A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1387983A publication Critical patent/GB1387983A/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
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H04N5/775—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television receiver
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F19/00—Fixed transformers or mutual inductances of the signal type
    • H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Television Receiver Circuits (AREA)

Abstract

1387983 Radio receiving apparatus PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 26 Oct 1973 [31 Oct 1972] 49899/73 Heading H3Q A D.C. insulating video signal transmission circuit for transmission of video signal between a recording and/or playback device 3 and a television receiver 23 comprises a magnetizable circuit G coupled to a video signal source and a video signal input 21 coupled to the circuit, being chatacterized in that the video signal input 21 is coupled at least through a Hall element 11 to the magnetizable circuit G. In the embodiment the magnetizable circuit G is driven by a winding 7 in the collector circuit of a transistor 5 which may receive its supply from the playback device 3, while the Hall device 11 operates into a pre-amplifier 17 which may receive its supply, together with the D.C. supply 13 for the Hall element 11, from the television receiver 23.
GB4989973A 1972-10-31 1973-10-26 Dc-insulating video signal transmission circuit Expired GB1387983A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7214703A NL7214703A (en) 1972-10-31 1972-10-31

Publications (1)

Publication Number Publication Date
GB1387983A true GB1387983A (en) 1975-03-19

Family

ID=19817268

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4989973A Expired GB1387983A (en) 1972-10-31 1973-10-26 Dc-insulating video signal transmission circuit

Country Status (5)

Country Link
JP (1) JPS4978427A (en)
DE (1) DE2351073A1 (en)
FR (1) FR2204855A1 (en)
GB (1) GB1387983A (en)
NL (1) NL7214703A (en)

Also Published As

Publication number Publication date
FR2204855A1 (en) 1974-05-24
NL7214703A (en) 1973-02-26
DE2351073A1 (en) 1974-05-09
JPS4978427A (en) 1974-07-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee