JPS5781790A - Color synchronizing signal - Google Patents

Color synchronizing signal

Info

Publication number
JPS5781790A
JPS5781790A JP14665281A JP14665281A JPS5781790A JP S5781790 A JPS5781790 A JP S5781790A JP 14665281 A JP14665281 A JP 14665281A JP 14665281 A JP14665281 A JP 14665281A JP S5781790 A JPS5781790 A JP S5781790A
Authority
JP
Japan
Prior art keywords
color
oscillator
vibrator
output
frequency
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
JP14665281A
Other languages
Japanese (ja)
Other versions
JPS6253114B2 (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
Sanyo Denki Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Sanyo Denki 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, Sanyo Denki Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP14665281A priority Critical patent/JPS5781790A/en
Publication of JPS5781790A publication Critical patent/JPS5781790A/en
Publication of JPS6253114B2 publication Critical patent/JPS6253114B2/ja
Granted 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
    • H04N9/44—Colour synchronisation
    • H04N9/455—Generation of colour burst signals; Insertion of colour burst signals in colour picture signals or separation of colour burst signals from colour picture signals

Abstract

PURPOSE:To obtain a color tuning circuit which is suitably follow discrepancy in the frequency of the color burst, by using a vibrator of low Q. CONSTITUTION:The output of a voltage control oscillator 5 which generates a chrominance subcarrier is given to demodulators 2 and 4 and a phase comparator 9. The comparator 9 compares a color burst extracted from a composite chrominance component which appear in an output of a color amplifier 1, with chrominance subcarrier, and gives the output obtained from the comparison to the oscillator as a control voltage. When a vibrator of low Q is used as the vibrator for the oscillator 5, an oscillator 5 which oscillates suitably following the descrepancy in frequency or phase of the color burst, is obtained and desired color demodulation is realized.
JP14665281A 1981-09-16 1981-09-16 Color synchronizing signal Granted JPS5781790A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14665281A JPS5781790A (en) 1981-09-16 1981-09-16 Color synchronizing signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14665281A JPS5781790A (en) 1981-09-16 1981-09-16 Color synchronizing signal

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP55127583A Division JPS5752285A (en) 1980-09-11 1980-09-11 Color synchronizing circuit

Publications (2)

Publication Number Publication Date
JPS5781790A true JPS5781790A (en) 1982-05-21
JPS6253114B2 JPS6253114B2 (en) 1987-11-09

Family

ID=15412564

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14665281A Granted JPS5781790A (en) 1981-09-16 1981-09-16 Color synchronizing signal

Country Status (1)

Country Link
JP (1) JPS5781790A (en)

Also Published As

Publication number Publication date
JPS6253114B2 (en) 1987-11-09

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