JPS57133787A - Color signal circuit for color television receiver - Google Patents

Color signal circuit for color television receiver

Info

Publication number
JPS57133787A
JPS57133787A JP1979181A JP1979181A JPS57133787A JP S57133787 A JPS57133787 A JP S57133787A JP 1979181 A JP1979181 A JP 1979181A JP 1979181 A JP1979181 A JP 1979181A JP S57133787 A JPS57133787 A JP S57133787A
Authority
JP
Japan
Prior art keywords
circuit
amplifier
phase
apc
hue
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
JP1979181A
Other languages
Japanese (ja)
Other versions
JPS6351597B2 (en
Inventor
Nobumasa Abe
Ikuo Kadota
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP1979181A priority Critical patent/JPS57133787A/en
Publication of JPS57133787A publication Critical patent/JPS57133787A/en
Publication of JPS6351597B2 publication Critical patent/JPS6351597B2/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
    • H04N9/64—Circuits for processing colour signals
    • H04N9/643—Hue control means, e.g. flesh tone control

Abstract

PURPOSE:To make the circuit integration easy, by obtaining the center phase of phase variable range and burst gate pulse period, independently of a hue control terminal voltage connected to the hue adjusting circuit, through the provision of the hue adjusting circuit in a closed loop of APC. CONSTITUTION:Each input terminal of B-Y and R-Y demodulators 11, 12 is connected to an output terminal of the 2nd band amplifier 2, and each output terminal of the demodulators 11, 12 is connected to an input terminal of a G-Y matrix 13. A hue adjusting circuit 8 of this circuit is provided in an APC loop consisting of a YCO circuit 6, an APC pickup holding circuit 20, a 90 deg. phase shift circuit 10 and a demodulator 12. This circuit is provided with the 1st differential amplifier 22 and the 2nd differential amplifier 27, an input signal source is connected to a common emitter of the respective differential pairs of the amplifier 22, and the amplifier 27 is connected to the base of the differential pair. A switching transistor TR35 operated with a burst gate pulse Vp is connected to the amplifier 27, a hue adjusting variable resistor 19 is connected to the base of the TR30 of the amplifier 27 and the central phase of the phase varialbe range is outputted.
JP1979181A 1981-02-12 1981-02-12 Color signal circuit for color television receiver Granted JPS57133787A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1979181A JPS57133787A (en) 1981-02-12 1981-02-12 Color signal circuit for color television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1979181A JPS57133787A (en) 1981-02-12 1981-02-12 Color signal circuit for color television receiver

Publications (2)

Publication Number Publication Date
JPS57133787A true JPS57133787A (en) 1982-08-18
JPS6351597B2 JPS6351597B2 (en) 1988-10-14

Family

ID=12009157

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1979181A Granted JPS57133787A (en) 1981-02-12 1981-02-12 Color signal circuit for color television receiver

Country Status (1)

Country Link
JP (1) JPS57133787A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61227494A (en) * 1985-03-29 1986-10-09 フィリップス　エレクトロニクス　ネムローゼ　フェンノートシャップ Color television signal receiver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61227494A (en) * 1985-03-29 1986-10-09 フィリップス　エレクトロニクス　ネムローゼ　フェンノートシャップ Color television signal receiver
JPH0693778B2 (en) * 1985-03-29 1994-11-16 エヌ・ベー・フイリツプス・フルーイランペンフアブリケン Color television signal receiver

Also Published As

Publication number Publication date
JPS6351597B2 (en) 1988-10-14

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