FR2613569B1 - Circuit de correction d'ouverture pour une camera video - Google Patents

Circuit de correction d'ouverture pour une camera video

Info

Publication number: FR2613569B1
Authority: FR; France
Prior art keywords: video camera; correction circuit; opening correction; opening; circuit
Prior art date: 1987-03-31
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.): Expired - Lifetime

Application number

FR888804220A

Other languages

English (en)

Other versions

FR2613569A1 (fr

Inventor

Taku Kihara

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.)

Sony Corp

Original Assignee

Sony Corp

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.)

1987-03-31

Filing date

1988-03-30

Publication date

1990-08-31

1987-03-31 Priority claimed from JP62080310A external-priority patent/JP2522296B2/ja

1987-06-13 Priority claimed from JP62147717A external-priority patent/JP2773821B2/ja

1988-03-30 Application filed by Sony Corp filed Critical Sony Corp

1988-10-07 Publication of FR2613569A1 publication Critical patent/FR2613569A1/fr

1990-08-31 Application granted granted Critical

1990-08-31 Publication of FR2613569B1 publication Critical patent/FR2613569B1/fr

2008-03-30 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/20—Circuitry for controlling amplitude response
- H04N5/205—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic
- H04N5/208—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Processing Of Color Television Signals (AREA)
Color Television Image Signal Generators (AREA)
Picture Signal Circuits (AREA)

FR888804220A 1987-03-31 1988-03-30 Circuit de correction d'ouverture pour une camera video Expired - Lifetime FR2613569B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP62080310A JP2522296B2 (ja)	1987-03-31	1987-03-31	映像信号の階調制御回路
JP62147717A JP2773821B2 (ja)	1987-06-13	1987-06-13	輪郭補償回路

Publications (2)

Publication Number	Publication Date
FR2613569A1 FR2613569A1 (fr)	1988-10-07
FR2613569B1 true FR2613569B1 (fr)	1990-08-31

Family

ID=26421337

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR888804220A Expired - Lifetime FR2613569B1 (fr)	1987-03-31	1988-03-30	Circuit de correction d'ouverture pour une camera video

Country Status (5)

Country	Link
US (1)	US4855829A (fr)
KR (1)	KR0139418B1 (fr)
DE (1)	DE3810902C2 (fr)
FR (1)	FR2613569B1 (fr)
GB (1)	GB2203013B (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4991021A (en) *	1988-06-22	1991-02-05	Nec Corporation	Digital video signal compensation circuit
US4970593A (en) *	1989-08-28	1990-11-13	Sperry Marine Inc.	Video image enhancement utilizing a two-dimensional digital aperture correction filter
JP2725451B2 (ja) *	1990-09-07	1998-03-11	日本電気株式会社	適応型ディジタル輪郭補償ノイズキャンセル回路
JPH0522655A (ja) *	1991-07-10	1993-01-29	Sony Corp	ビデオカメラ
KR940011878B1 (ko) *	1991-12-27	1994-12-27	삼성전자 주식회사	윤곽보정장치
US5349381A (en) *	1992-02-28	1994-09-20	Sony Corporation	Video camera with aperture correction having reduced power consumption
DE69321386T2 (de) *	1992-03-09	1999-03-04	Thomson Multimedia, Boulogne, Cedex	Verfahren und Vorrichtung zur Schärfeverbesserung
US5440338A (en) *	1993-05-11	1995-08-08	Spiricon, Inc.	Method and apparatus for improving dimensional measurements made with video cameras
US5418562A (en) *	1993-05-11	1995-05-23	Spiricon, Inc.	Method and apparatus for increasing the accuracy of dimensional measurements made with video cameras
US5446503A (en) *	1994-04-11	1995-08-29	Mitsubishi Semiconductor America, Inc.	Vertical detail enhancement with stepped return coring
JPH0946554A (ja)	1995-07-31	1997-02-14	Sony Corp	撮像装置
JP3356201B2 (ja) *	1996-04-12	2002-12-16	ソニー株式会社	ビデオカメラおよび輪郭強調装置
JP4398809B2 (ja) *	2004-06-30	2010-01-13	株式会社東芝	映像信号処理装置及び映像信号処理方法
EP2416557A4 (fr) *	2009-03-31	2013-01-23	Sharp Kk	Dispositif d'amélioration d'image, procédé d'amélioration d'image, programme d'amélioration d'image et dispositif de traitement de signal
WO2011061958A1 (fr)	2009-11-17	2011-05-26	シャープ株式会社	Dispositif de décodage, procédé de commande d'un dispositif de décodage, système de transmission et support d'enregistrement lisible par un ordinateur sur lequel est enregistré un programme de commande
JP5291804B2 (ja)	2009-11-17	2013-09-18	シャープ株式会社	符号化装置、符号化装置の制御方法、伝送システム、および制御プログラムを記録したコンピュータ読み取り可能な記録媒体
CN103430528A (zh)	2011-03-15	2013-12-04	夏普株式会社	信号处理装置、控制程序以及集成电路

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA933108A (en) *	1970-02-04	1973-09-04	Canadian General Electric Company Limited	Modified system for deuterium production
US4038685A (en) *	1975-03-31	1977-07-26	Rca Corporation	Apparatus for automatic gamma control of television color signals
US4245237A (en) *	1979-05-11	1981-01-13	Rca Corporation	Controllable non-linear processing of video signals
JPS6093682A (ja) *	1983-10-25	1985-05-25	Sony Corp	デイジタル非線形プリエンフアシス回路
US4621290A (en) *	1984-04-12	1986-11-04	Rca Corporation	Piecewise linear digital signal processor as for digital video vertical detail processing

1988
- 1988-03-18 GB GB8806502A patent/GB2203013B/en not_active Expired - Lifetime
- 1988-03-22 US US07/171,764 patent/US4855829A/en not_active Expired - Lifetime
- 1988-03-30 FR FR888804220A patent/FR2613569B1/fr not_active Expired - Lifetime
- 1988-03-30 KR KR1019880003475A patent/KR0139418B1/ko not_active IP Right Cessation
- 1988-03-30 DE DE3810902A patent/DE3810902C2/de not_active Expired - Lifetime

Also Published As

Publication number	Publication date
GB2203013B (en)	1991-03-06
US4855829A (en)	1989-08-08
DE3810902C2 (de)	2000-01-20
KR880012084A (ko)	1988-11-03
FR2613569A1 (fr)	1988-10-07
KR0139418B1 (ko)	1998-06-15
GB2203013A (en)	1988-10-05
GB8806502D0 (en)	1988-04-20
DE3810902A1 (de)	1988-10-13

Publication	Publication Date	Title
FR2613569B1 (fr)	1990-08-31	Circuit de correction d'ouverture pour une camera video
FR2541842B1 (fr)	1989-09-08	Reglage de l'image pour camera de television a circuits integres
EP0471444A3 (en)	1992-04-29	Video camera
EP0719036A3 (fr)	1996-12-27	Caméra électronique d'image fixe
GB2210532B (en)	1991-11-27	Circuits for color video cameras
GB9025302D0 (en)	1991-01-02	Still video camera
HK1013568A1 (en)	1999-08-27	Electronic shutter for electronic camera
EP0473516A3 (en)	1993-01-13	Digital electronic still camera
AU115785S (en)	1992-12-02	Video camera
EP0318015A3 (en)	1990-08-22	Video camera
DE69118616D1 (de)	1996-05-15	Elektronische Stehbild-Videokamera
EP0441303A3 (en)	1992-08-12	Camera having device for display within viewfinder
GB2224359B (en)	1993-02-03	Zoom lens camera
GB2234600B (en)	1993-05-19	Single lens reflex camera
GB2242560B (en)	1994-01-12	Electronic still camera
EP0479671A3 (en)	1992-07-08	Still video camera
EP0463827A3 (en)	1992-05-20	Video cameras
GB2234360B (en)	1993-10-13	Viewfinder for camera
EP0454283A3 (en)	1992-07-08	Filmgate for cinematographic camera
GB2260417B (en)	1995-04-26	Single lens reflex camera
EP0480232A3 (en)	1993-10-27	Electronic camera
GB2245714B (en)	1994-02-16	Zoom camera
EP0490489A3 (en)	1992-10-14	Camera for taking still pictures
FR2656759B1 (fr)	1997-07-18	Dispositif combine d'equilibrage des blancs a commutation pour camera video.
FR2556161B1 (fr)	1987-02-20	Circuit de television pour une correction de papillotement d'image