JPS56153890A - Color television receiver with improved picture quality - Google Patents

Color television receiver with improved picture quality

Info

Publication number
JPS56153890A
JPS56153890A JP5620580A JP5620580A JPS56153890A JP S56153890 A JPS56153890 A JP S56153890A JP 5620580 A JP5620580 A JP 5620580A JP 5620580 A JP5620580 A JP 5620580A JP S56153890 A JPS56153890 A JP S56153890A
Authority
JP
Japan
Prior art keywords
signal
delayed
circuit
deciding
output
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
JP5620580A
Other languages
Japanese (ja)
Inventor
Tetsuo Sakai
Nobuya Nagao
Shinichiro Taguchi
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 JP5620580A priority Critical patent/JPS56153890A/en
Publication of JPS56153890A publication Critical patent/JPS56153890A/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

Landscapes

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

Abstract

PURPOSE:To obtain a high-resolution and high-quality picture, by deciding presence or absence of the line correlation on a basis of the signal, which is delayed by one horizontal period, and the signal which is not delayed and by increasing attenuation of high-band frequency components included in the chrominance signal during the decided vertical noncorrelation period. CONSTITUTION:The composite color TV signal is inputted to input terminal 1 and is inputted to delay circuit 2 and is delayed by one horizontal scanning period, and this delayed signal is applied to deciding circuit 5 and adder 3. The composite color TV signal is applied to deciding circuit 5 directly, and the line correlation between this signal and the delayed signal is decided, and the output signal is generated when the line correlation does not exist. Further, the delayed signal and the signal which is not delayed are added by adder 3, and the addition result is applied to frequency characteristic variable circuit 6. The output of deciding circuit 5 is applied to this circuit 6, and high-band frequency components are attenuated only when the output signal is not output from deciding circuit 5, and the chrominance signal is suppressed effectively without losing luminance signal components, thereby obtaining a high-quality picture.
JP5620580A 1980-04-30 1980-04-30 Color television receiver with improved picture quality Pending JPS56153890A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5620580A JPS56153890A (en) 1980-04-30 1980-04-30 Color television receiver with improved picture quality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5620580A JPS56153890A (en) 1980-04-30 1980-04-30 Color television receiver with improved picture quality

Publications (1)

Publication Number Publication Date
JPS56153890A true JPS56153890A (en) 1981-11-28

Family

ID=13020605

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5620580A Pending JPS56153890A (en) 1980-04-30 1980-04-30 Color television receiver with improved picture quality

Country Status (1)

Country Link
JP (1) JPS56153890A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62152290A (en) * 1985-12-26 1987-07-07 Matsushita Electric Ind Co Ltd Luminance signal and chrominance signal separating circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62152290A (en) * 1985-12-26 1987-07-07 Matsushita Electric Ind Co Ltd Luminance signal and chrominance signal separating circuit

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