GB842512A - Improvements in or relating to colour television receivers - Google Patents

Improvements in or relating to colour television receivers

Info

Publication number
GB842512A
GB842512A GB818258A GB818258A GB842512A GB 842512 A GB842512 A GB 842512A GB 818258 A GB818258 A GB 818258A GB 818258 A GB818258 A GB 818258A GB 842512 A GB842512 A GB 842512A
Authority
GB
United Kingdom
Prior art keywords
colour
sub
carrier
march
reception
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
GB818258A
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.)
EK Cole Ltd
Original Assignee
EK Cole 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 EK Cole Ltd filed Critical EK Cole Ltd
Priority to GB818258A priority Critical patent/GB842512A/en
Publication of GB842512A publication Critical patent/GB842512A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/70—Circuits for processing colour signals for colour killing
    • H04N9/71—Circuits for processing colour signals for colour killing combined with colour gain control

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

842,512. Colour television. COLE Ltd., E. K., and TINGEY, P. A. March 16, 1959 [March 14, 1958], No. 8182/58. Class 40(3). [Also in Group XL(c)] In a television receiver for the reception of either a monochrome transmission or a colour transmission of the sub-carrier type (e.g. the N.T.S.C. or modified type), a filter L1, Cl tuned to the sub-carrier frequency is arranged automatically to be connected in the circuit of the video amplifier V in response to the reception of colour sub-carrier synchronizing signals, with the object of removing "dot patterning" in saturated colour areas, by means of a rectifier Z which is rendered conducting by a potential applied through resistor R1 from a point in the chroma circuits (e.g. the synchronous demodulator or "colour killer") which becomes positive when the circuits are fully operative in response to sub-carrier synchronizing signals. Typical circuit values are given.
GB818258A 1958-03-14 1958-03-14 Improvements in or relating to colour television receivers Expired GB842512A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB818258A GB842512A (en) 1958-03-14 1958-03-14 Improvements in or relating to colour television receivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB818258A GB842512A (en) 1958-03-14 1958-03-14 Improvements in or relating to colour television receivers

Publications (1)

Publication Number Publication Date
GB842512A true GB842512A (en) 1960-07-27

Family

ID=9847411

Family Applications (1)

Application Number Title Priority Date Filing Date
GB818258A Expired GB842512A (en) 1958-03-14 1958-03-14 Improvements in or relating to colour television receivers

Country Status (1)

Country Link
GB (1) GB842512A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3167611A (en) * 1960-03-25 1965-01-26 Hazeltine Research Inc Color-television apparatus for improving resolution during monochrome reception

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3167611A (en) * 1960-03-25 1965-01-26 Hazeltine Research Inc Color-television apparatus for improving resolution during monochrome reception

Similar Documents

Publication Publication Date Title
GB910937A (en) Method of automatic contrast control in television receivers
GB740370A (en) Noise cancellation circuits for synchronization pulse separator circuit in a television receiver
GB842512A (en) Improvements in or relating to colour television receivers
GB1117725A (en) Demodulating circuit for waves frequency modulated by signals of the video type
GB815715A (en) Television receiver
GB689821A (en) Color-television system
JPS5324724A (en) Color television receiver
JPS5246709A (en) Signal receiving equipment
GB1064498A (en) Improvements in systems for the generation of special effects in colour television
GB1113083A (en) Improvements in colour television circuits and apparatus
GB1511932A (en) Video recording apparatus
GB685483A (en) Improvements in or relating to television apparatus
JPS5942789Y2 (en) television receiver
GB815717A (en) Television receiver
GB631377A (en) Improvements in or relating to radio receivers
GB1268963A (en) Cross-colour eliminating apparatus for a television receiver
GB987628A (en) Arrangements for ensuring continuity of colour synchronization in colour television systems
GB796893A (en) Colour television circuit
GB799132A (en) Improvements in or relating to circuits for use in television receivers
GB747887A (en) Improvements in or relating to automatic gain control circuit arrangements for television receivers
JPS55145492A (en) Picture quality improving circuit for color television receiver
GB814612A (en) Improvements relating to colour television receivers
JPS53140926A (en) Television receiver
JPS5679592A (en) Transmission method of color video signal
GB423765A (en) Improvements in or relating to television systems