JPS5416923A - Picture quality improving device - Google Patents

Picture quality improving device

Info

Publication number
JPS5416923A
JPS5416923A JP8099277A JP8099277A JPS5416923A JP S5416923 A JPS5416923 A JP S5416923A JP 8099277 A JP8099277 A JP 8099277A JP 8099277 A JP8099277 A JP 8099277A JP S5416923 A JPS5416923 A JP S5416923A
Authority
JP
Japan
Prior art keywords
picture quality
quality improving
improving device
waveform
securing
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
JP8099277A
Other languages
Japanese (ja)
Inventor
Himio Nakagawa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8099277A priority Critical patent/JPS5416923A/en
Publication of JPS5416923A publication Critical patent/JPS5416923A/en
Pending legal-status Critical Current

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  • Picture Signal Circuits (AREA)

Abstract

PURPOSE: To improve the picture quality by securing the sudden rise and fall of the waveform by combining plural signals of different delay time and without using the compensating signal.
COPYRIGHT: (C)1979,JPO&Japio
JP8099277A 1977-07-08 1977-07-08 Picture quality improving device Pending JPS5416923A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8099277A JPS5416923A (en) 1977-07-08 1977-07-08 Picture quality improving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8099277A JPS5416923A (en) 1977-07-08 1977-07-08 Picture quality improving device

Publications (1)

Publication Number Publication Date
JPS5416923A true JPS5416923A (en) 1979-02-07

Family

ID=13733985

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8099277A Pending JPS5416923A (en) 1977-07-08 1977-07-08 Picture quality improving device

Country Status (1)

Country Link
JP (1) JPS5416923A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5989077A (en) * 1982-06-24 1984-05-23 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Edge sharpness intensifying circuit for video signal
JPS61285872A (en) * 1985-06-12 1986-12-16 Hitachi Ltd Vertical outline emphasizing circuit for television receiver
JPS63151179A (en) * 1986-12-15 1988-06-23 Canon Inc Signal processor
WO1988009592A1 (en) * 1987-05-25 1988-12-01 Mitsubishi Denki Kabushiki Kaisha Profile correction apparatus
GB2241408A (en) * 1989-12-23 1991-08-28 Samsung Electronics Co Ltd Image edge enhancement
US5404180A (en) * 1992-04-09 1995-04-04 Mitsubishi Electric Engineering Company Limited Waveform shaping method, waveform shaping apparatus and apparatus for correcting contour of carrier chrominance signal
FR2749120A1 (en) * 1996-05-23 1997-11-28 Oreal Colorimeter with video camera and trichromatic signal processor

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5989077A (en) * 1982-06-24 1984-05-23 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Edge sharpness intensifying circuit for video signal
JPS61285872A (en) * 1985-06-12 1986-12-16 Hitachi Ltd Vertical outline emphasizing circuit for television receiver
JPH0669215B2 (en) * 1985-06-12 1994-08-31 株式会社日立製作所 Vertical contour enhancement circuit of television receiver
JPS63151179A (en) * 1986-12-15 1988-06-23 Canon Inc Signal processor
WO1988009592A1 (en) * 1987-05-25 1988-12-01 Mitsubishi Denki Kabushiki Kaisha Profile correction apparatus
US4918528A (en) * 1987-05-25 1990-04-17 Mitsubishi Denki Kabushiki Kaisha Contour correction device
GB2241408A (en) * 1989-12-23 1991-08-28 Samsung Electronics Co Ltd Image edge enhancement
GB2241408B (en) * 1989-12-23 1994-05-11 Samsung Electronics Co Ltd Method and circuit for correcting image edge
US5404180A (en) * 1992-04-09 1995-04-04 Mitsubishi Electric Engineering Company Limited Waveform shaping method, waveform shaping apparatus and apparatus for correcting contour of carrier chrominance signal
FR2749120A1 (en) * 1996-05-23 1997-11-28 Oreal Colorimeter with video camera and trichromatic signal processor

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