JPS56153891A - Television receiver having means for improving color picture quality - Google Patents

Television receiver having means for improving color picture quality

Info

Publication number
JPS56153891A
JPS56153891A JP5620680A JP5620680A JPS56153891A JP S56153891 A JPS56153891 A JP S56153891A JP 5620680 A JP5620680 A JP 5620680A JP 5620680 A JP5620680 A JP 5620680A JP S56153891 A JPS56153891 A JP S56153891A
Authority
JP
Japan
Prior art keywords
signal
circuit
picture quality
color
color picture
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
JP5620680A
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 JP5620680A priority Critical patent/JPS56153891A/en
Publication of JPS56153891A publication Critical patent/JPS56153891A/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
    • H04N9/646—Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters

Abstract

PURPOSE:To improve the overall color picture quality, by removing the luminance signal, specially, high-band components mixed into the chrominance signal to reduce the interference of cross color or the like and reduce color blur phenomena of the part having no line correlation. CONSTITUTION:The TV signal from input terminal 1 and the TV signal which is delayed in delay circuit 2 by one horizontal period are inputted to deciding circuit 5, and deciding circuit 5 decides presence or absence of the line correlation and outputs the control signal for no correlation. Meanwhile, switching circuit 6 is connected to the output side of the picture quality improving device, and the signal obtained from subtractor 3 and the TV signal from input terminal 1 are inputted to this circuit 6, and circuit 6 transfers always the signal from substractor 3 to output terminal 4 and receives the control signal to transfer the TV signal to output terminal 4. As a result, the interference of cross color or the like is reduced, and color blur phenomena of the part having no line correlation are reduced, thereby improving the overall color picture quality.
JP5620680A 1980-04-30 1980-04-30 Television receiver having means for improving color picture quality Pending JPS56153891A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5620680A JPS56153891A (en) 1980-04-30 1980-04-30 Television receiver having means for improving color picture quality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5620680A JPS56153891A (en) 1980-04-30 1980-04-30 Television receiver having means for improving color picture quality

Publications (1)

Publication Number Publication Date
JPS56153891A true JPS56153891A (en) 1981-11-28

Family

ID=13020633

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5620680A Pending JPS56153891A (en) 1980-04-30 1980-04-30 Television receiver having means for improving color picture quality

Country Status (1)

Country Link
JP (1) JPS56153891A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01174189A (en) * 1987-12-18 1989-07-10 Philips Gloeilampenfab:Nv Compatible comb filter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01174189A (en) * 1987-12-18 1989-07-10 Philips Gloeilampenfab:Nv Compatible comb filter

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