JPS5635583A - Chrominance signal processing circuit - Google Patents

Chrominance signal processing circuit

Info

Publication number
JPS5635583A
JPS5635583A JP11108179A JP11108179A JPS5635583A JP S5635583 A JPS5635583 A JP S5635583A JP 11108179 A JP11108179 A JP 11108179A JP 11108179 A JP11108179 A JP 11108179A JP S5635583 A JPS5635583 A JP S5635583A
Authority
JP
Japan
Prior art keywords
chrominance signal
differential amplifiers
input terminal
outputs
signal
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.)
Pending
Application number
JP11108179A
Other languages
Japanese (ja)
Inventor
Shinichiro Taguchi
Nobuya Nagao
Yutaka Ogiwara
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11108179A priority Critical patent/JPS5635583A/en
Publication of JPS5635583A publication Critical patent/JPS5635583A/en
Pending 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

PURPOSE:To carry out a steady control of the chrominance signal to the variance of elements, the fluctuation of the power supply and the variation of the temperature each, by deciding the working point for generation of the gain control voltage and color killer voltage of the chrominance signal via the common bias means. CONSTITUTION:The burst signal level is detected for the TV chrominance signal and then converted into the DC through the wave detection to be applied to the input terminal 21. The signal of the terminal 21 is supplied to the 1st input terminal of the 1st and 2nd differential amplifiers Q12, Q13 and Q16, Q17 each. And the bias means having the connection of each partial pressure output terminal provided to the common circuits R14-R17 plus Q14 and Q15 each consisting of at least plural numbers of resistances is provided to each 2nd input terminal which functions as the differential input of the 1st and 2nd differential amplifiers Q12, Q13 and Q16, Q17 each. Then the outputs of the 1st differential amplifiers Q12 and Q13 are used for the control means ACC to give stabilization to the amplitude of the chrominance signal; and the outputs of the 2nd differential amplifiers Q16 and Q17 are used for the color error means respectively.
JP11108179A 1979-08-31 1979-08-31 Chrominance signal processing circuit Pending JPS5635583A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11108179A JPS5635583A (en) 1979-08-31 1979-08-31 Chrominance signal processing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11108179A JPS5635583A (en) 1979-08-31 1979-08-31 Chrominance signal processing circuit

Publications (1)

Publication Number Publication Date
JPS5635583A true JPS5635583A (en) 1981-04-08

Family

ID=14551893

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11108179A Pending JPS5635583A (en) 1979-08-31 1979-08-31 Chrominance signal processing circuit

Country Status (1)

Country Link
JP (1) JPS5635583A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02139598A (en) * 1989-06-24 1990-05-29 Roland Corp Musical sound data editing device
US5232356A (en) * 1990-02-16 1993-08-03 Kabushiki Kaisha Komatsu Seisakusho Seal device for gear pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02139598A (en) * 1989-06-24 1990-05-29 Roland Corp Musical sound data editing device
JPH045996B2 (en) * 1989-06-24 1992-02-04 Roland Corp
US5232356A (en) * 1990-02-16 1993-08-03 Kabushiki Kaisha Komatsu Seisakusho Seal device for gear pump

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