JPS5461826A - Color signal circuit of television receiver - Google Patents

Color signal circuit of television receiver

Info

Publication number
JPS5461826A
JPS5461826A JP12886277A JP12886277A JPS5461826A JP S5461826 A JPS5461826 A JP S5461826A JP 12886277 A JP12886277 A JP 12886277A JP 12886277 A JP12886277 A JP 12886277A JP S5461826 A JPS5461826 A JP S5461826A
Authority
JP
Japan
Prior art keywords
demodulator
band
outputs
control circuit
automatic
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.)
Granted
Application number
JP12886277A
Other languages
Japanese (ja)
Other versions
JPS5836873B2 (en
Inventor
Nobukazu Hosoya
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP52128862A priority Critical patent/JPS5836873B2/en
Priority to US05/954,667 priority patent/US4216493A/en
Priority to DE2846706A priority patent/DE2846706C2/en
Publication of JPS5461826A publication Critical patent/JPS5461826A/en
Publication of JPS5836873B2 publication Critical patent/JPS5836873B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE: To eliminate the influence of phase drift, by sample-holding outputs of a R-Y demodulator and B-Y demodulator at each period only in a burst interval and by using the outputs as control signals of an automatic chroma-saturation control circuit and automatic phase control circuit.
CONSTITUTION: The 1st band-pass amplifier 2 and 2nd band-pass amplifier 3 are cascaded to band-pass transformer 1 covering the band of a composite color signal, which is transmitted via chroma-saturation regulator 4 to R-Y demodulator 5 and B-Y demodulator 6, and G-Y regenerative circuit 7 generating a G-Y signal from outputs of circuits 5 and 6. Here, outputs of the R-Y demodulator and B-Y demodulator are sample-held 25 and 26 at each constant period only in a burst interval, and its output is used as the control signal of automatic chroma-saturation control circuit 4 and automatic phase control circuit 9. Consequently, the influence of phase drift can be eliminated.
COPYRIGHT: (C)1979,JPO&Japio
JP52128862A 1977-10-26 1977-10-26 Television receiver color signal circuit Expired JPS5836873B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP52128862A JPS5836873B2 (en) 1977-10-26 1977-10-26 Television receiver color signal circuit
US05/954,667 US4216493A (en) 1977-10-26 1978-10-25 Chrominance signal processing circuit in color television receiver
DE2846706A DE2846706C2 (en) 1977-10-26 1978-10-26 Chroma signal processing circuit for color television receivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52128862A JPS5836873B2 (en) 1977-10-26 1977-10-26 Television receiver color signal circuit

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP53031239A Division JPS5851719B2 (en) 1977-10-26 1978-03-16 Television receiver color signal circuit

Publications (2)

Publication Number Publication Date
JPS5461826A true JPS5461826A (en) 1979-05-18
JPS5836873B2 JPS5836873B2 (en) 1983-08-12

Family

ID=14995198

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52128862A Expired JPS5836873B2 (en) 1977-10-26 1977-10-26 Television receiver color signal circuit

Country Status (1)

Country Link
JP (1) JPS5836873B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0345649Y2 (en) * 1986-01-17 1991-09-26

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3148243A (en) * 1958-08-08 1964-09-08 Warwick Electronics Inc Synchronization of subcarrier oscillator with r-y synchronous detector output
US3806634A (en) * 1972-08-21 1974-04-23 Gen Electric Multiplex color television demodulator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3148243A (en) * 1958-08-08 1964-09-08 Warwick Electronics Inc Synchronization of subcarrier oscillator with r-y synchronous detector output
US3806634A (en) * 1972-08-21 1974-04-23 Gen Electric Multiplex color television demodulator

Also Published As

Publication number Publication date
JPS5836873B2 (en) 1983-08-12

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