GB537599A - Video-frequency signal-translating system - Google Patents

Video-frequency signal-translating system

Info

Publication number
GB537599A
GB537599A GB9842/40A GB984240A GB537599A GB 537599 A GB537599 A GB 537599A GB 9842/40 A GB9842/40 A GB 9842/40A GB 984240 A GB984240 A GB 984240A GB 537599 A GB537599 A GB 537599A
Authority
GB
United Kingdom
Prior art keywords
video
frequency signal
translating system
rectifier
june
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
GB9842/40A
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.)
BAE Systems Aerospace Inc
Original Assignee
Hazeltine Corp
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 Hazeltine Corp filed Critical Hazeltine Corp
Publication of GB537599A publication Critical patent/GB537599A/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
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/16—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
    • H04N5/165—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level to maintain the black level constant

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Television Signal Processing For Recording (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

537,599. Television. HAZELTINE CORPORATION. June 5, 1940, No. 9842. Convention date, June 9, 1939. [Class 40 (iii)] In order to stabilize " background-illumination " in a television receiver, the amplifying valve 21 feeding the image reproducer 18 has an output circuit 24 connected to a rectifier 26 arranged to introduce a bias in the input circuit of the valve 21 to which the unstabilized signal is fed from an amplifier 16 through a condenser 22. As shown, the connection between the output circuit 24 and the rectifier 26 is by way of a tapping 24a and a condenser 28. Specification 499,538 is referred to.
GB9842/40A 1939-06-09 1940-06-05 Video-frequency signal-translating system Expired GB537599A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US278316A US2254114A (en) 1939-06-09 1939-06-09 Video-frequency signal-translating system

Publications (1)

Publication Number Publication Date
GB537599A true GB537599A (en) 1941-06-27

Family

ID=23064527

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9842/40A Expired GB537599A (en) 1939-06-09 1940-06-05 Video-frequency signal-translating system

Country Status (3)

Country Link
US (1) US2254114A (en)
FR (1) FR865677A (en)
GB (1) GB537599A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE954338C (en) * 1950-11-09 1956-12-13 Philips Nv Circuit for automatic gain control in a television receiver

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2537958A (en) * 1945-12-06 1951-01-16 Waugh Equipment Co Overload control circuit
US2647161A (en) * 1947-09-17 1953-07-28 Motorola Inc Double triode clamping circuit for direct current reinsertion
US2498680A (en) * 1947-09-23 1950-02-28 Int Standard Electric Corp Alternating current signaling system
US2525103A (en) * 1948-03-11 1950-10-10 Rca Corp Apparatus for controlling black level shift in television signals
US2708687A (en) * 1949-05-10 1955-05-17 Motorola Inc Combined direct current reinserter and synchronizing pulse separator
US2572179A (en) * 1949-05-24 1951-10-23 Philco Corp Peak leveling circuit
US2800528A (en) * 1949-06-23 1957-07-23 Du Mont Allen B Lab Inc Video amplifier bridge circuit for minimizing supply voltage variations
US2740071A (en) * 1950-05-11 1956-03-27 Columbia Broadcasting Syst Inc Television
US2761066A (en) * 1951-10-25 1956-08-28 Harris A Robinson Harmonic generator
US2750457A (en) * 1953-02-02 1956-06-12 Edward D Padgett Pulse amplifier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE954338C (en) * 1950-11-09 1956-12-13 Philips Nv Circuit for automatic gain control in a television receiver

Also Published As

Publication number Publication date
FR865677A (en) 1941-05-30
US2254114A (en) 1941-08-26

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