JPS5731286A - Improving device of picture quality - Google Patents

Improving device of picture quality

Info

Publication number
JPS5731286A
JPS5731286A JP10574780A JP10574780A JPS5731286A JP S5731286 A JPS5731286 A JP S5731286A JP 10574780 A JP10574780 A JP 10574780A JP 10574780 A JP10574780 A JP 10574780A JP S5731286 A JPS5731286 A JP S5731286A
Authority
JP
Japan
Prior art keywords
supplied
output
luminance signal
subtractor
led
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
JP10574780A
Other languages
Japanese (ja)
Inventor
Kenichi Tachibana
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 JP10574780A priority Critical patent/JPS5731286A/en
Publication of JPS5731286A publication Critical patent/JPS5731286A/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

Landscapes

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

Abstract

PURPOSE:To improve the quality of pictures, by eliminating only the carrier chrominance signal without losing the high band component of a luminance signal. CONSTITUTION:The luminance signal led to an output terminal 14 is supplied to a band amplifier 15. The output of amplification of the amplifier 15 is supplied to a switching circuit 17 via a wave detector 16. On the other hand, the luminance signal led to the terminal 14 is supplied to one of the input terminals of a subtractor 19 via a delaying circuit 18, and the output of the circuit 17 is supplied to the other input of the subtractor 19. The output of the subtractor 19 is led to a dot suppression luminance signal output terminal 20.
JP10574780A 1980-07-31 1980-07-31 Improving device of picture quality Pending JPS5731286A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10574780A JPS5731286A (en) 1980-07-31 1980-07-31 Improving device of picture quality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10574780A JPS5731286A (en) 1980-07-31 1980-07-31 Improving device of picture quality

Publications (1)

Publication Number Publication Date
JPS5731286A true JPS5731286A (en) 1982-02-19

Family

ID=14415841

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10574780A Pending JPS5731286A (en) 1980-07-31 1980-07-31 Improving device of picture quality

Country Status (1)

Country Link
JP (1) JPS5731286A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6129583U (en) * 1984-07-26 1986-02-22 ソニー株式会社 Luminance signal separation circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6129583U (en) * 1984-07-26 1986-02-22 ソニー株式会社 Luminance signal separation circuit
JPH04632Y2 (en) * 1984-07-26 1992-01-09

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