DE68926230D1 - Rauschmessung für Videosignale - Google Patents

Rauschmessung für Videosignale

Info

Publication number: DE68926230D1
Authority: DE; Germany
Prior art keywords: video signals; noise measurement; noise; measurement; video
Prior art date: 1988-12-20
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 - Fee Related

Application number

DE68926230T

Other languages

English (en)

Other versions

DE68926230T2 (de

Inventor

Ted Alan Darby

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.)

Philips North America LLC

Original Assignee

Philips Electronics North America 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.)

1988-12-20

Filing date

1989-12-14

Publication date

1996-05-15

1989-12-14 Application filed by Philips Electronics North America Corp filed Critical Philips Electronics North America Corp

1996-05-15 Publication of DE68926230D1 publication Critical patent/DE68926230D1/de

1996-10-10 Application granted granted Critical

1996-10-10 Publication of DE68926230T2 publication Critical patent/DE68926230T2/de

2009-12-15 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

238000005259 measurement Methods 0.000 title 1

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details

Landscapes

Engineering & Computer Science (AREA)
Health & Medical Sciences (AREA)
Biomedical Technology (AREA)
General Health & Medical Sciences (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Picture Signal Circuits (AREA)
Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

DE68926230T 1988-12-20 1989-12-14 Rauschmessung für Videosignale Expired - Fee Related DE68926230T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US07/288,061 US4873574A (en)	1988-12-20	1988-12-20	Noise measurement for video signals

Publications (2)

Publication Number	Publication Date
DE68926230D1 true DE68926230D1 (de)	1996-05-15
DE68926230T2 DE68926230T2 (de)	1996-10-10

Family

ID=23105575

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE68926230T Expired - Fee Related DE68926230T2 (de)	1988-12-20	1989-12-14	Rauschmessung für Videosignale

Country Status (4)

Country	Link
US (1)	US4873574A (de)
EP (1)	EP0378875B1 (de)
JP (1)	JPH02223869A (de)
DE (1)	DE68926230T2 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5025316A (en) *	1989-11-06	1991-06-18	North American Philips Corporation	Video noise reduction system with measured noise input
US5086344A (en) *	1990-05-11	1992-02-04	Eastman Kodak Company	Digital correlated double sampling circuit for sampling the output of an image sensor
KR930001678A (ko) *	1991-06-13	1993-01-16	강진구	영상 신호에 있어서의 잡음 검출 알고리즘
DE69320890T2 (de) *	1992-01-08	1999-01-28	Ikegami Tsushinki Co., Ltd., Tokio/Tokyo	Festkörperbildaufnahmevorrichtung und -element hierfür
EP0562407B1 (de) *	1992-03-23	1998-09-16	THOMSON multimedia	Verfahren und Gerät zur Rauschmessung
US5790523A (en) *	1993-09-17	1998-08-04	Scientific-Atlanta, Inc.	Testing facility for a broadband communications system
EP0809409B1 (de) *	1996-05-24	2001-08-29	Matsushita Electric Industrial Co., Ltd.	Verfahren und Schaltung zur Bestimmung eines Rauschwerts der repräsentativ ist für das Rauschen in einem Signal
US5946033A (en) *	1996-05-28	1999-08-31	Gatan, Inc.	Method and apparatus for multiple read-out speeds for a CTD
DE19743124B4 (de) *	1997-09-30	2004-08-26	Harman Becker Automotive Systems (Xsys Division) Gmbh	Verfahren zur Bestimmung der Qualität eines Videosignals und/oder eines Fernsehbildes
DE10302003B4 (de) *	2002-02-26	2011-06-16	Thomson Licensing S.A.	Verfahren und Schaltung zur Bestimmung des Rauschanteils in einem Videosignal
CN100345442C (zh)	2002-10-07	2007-10-24	皇家飞利浦电子股份有限公司	多频道接收机及自动设置其宽带放大器的工作状态的方法
US7701512B1 (en) *	2003-05-20	2010-04-20	Pixelworks, Inc.	System and method for improved horizontal and vertical sync pulse detection and processing
TW594662B (en) *	2003-06-03	2004-06-21	Chunghwa Picture Tubes Ltd	Method for restraining noise when flat display turn on/off
CN101847382B (zh) *	2009-03-25	2012-06-27	华映视讯（吴江）有限公司	降低液晶显示器噪声的噪声抑制装置及相关液晶显示器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4172263A (en) *	1978-03-09	1979-10-23	Home Box Office Inc.	Methods and apparatus for measuring signal-to-noise ratio
US4500911A (en) *	1981-05-25	1985-02-19	Nippon Hoso Kyokai	Noise reduction apparatus
US4535353A (en) *	1984-10-18	1985-08-13	Zenith Electronics Corporation	Vertical reference signal identification system
JPS621379A (ja) *	1985-06-27	1987-01-07	Matsushita Electric Ind Co Ltd	映像信号処理装置
US4723166A (en) *	1986-04-11	1988-02-02	Harris Corporation	Noise adjusted recursive filter
US4721997A (en) *	1986-06-02	1988-01-26	Sencore, Inc.	Signal to noise ratio measurement by sampling noise outside carrier frequency
JPS6359273A (ja) *	1986-08-29	1988-03-15	Nec Home Electronics Ltd	雑音低減装置

1988
- 1988-12-20 US US07/288,061 patent/US4873574A/en not_active Expired - Fee Related
1989
- 1989-12-14 DE DE68926230T patent/DE68926230T2/de not_active Expired - Fee Related
- 1989-12-14 EP EP89203184A patent/EP0378875B1/de not_active Expired - Lifetime
- 1989-12-18 JP JP89326189A patent/JPH02223869A/ja active Pending

Also Published As

Publication number	Publication date
EP0378875A3 (de)	1991-08-07
EP0378875B1 (de)	1996-04-10
JPH02223869A (ja)	1990-09-06
US4873574A (en)	1989-10-10
EP0378875A2 (de)	1990-07-25
DE68926230T2 (de)	1996-10-10

Legal Events

Date	Code	Title	Description
1997-05-07	8364	No opposition during term of opposition
1999-01-14	8339	Ceased/non-payment of the annual fee

Publication	Publication Date	Title
DE3855597D1 (de)	1996-11-14	Aufzeichnungsgerät
DK255484D0 (da)	1984-05-24	Noeglesignalkryptografering
DE69127843D1 (de)	1997-11-13	Signalaufzeichnungssystem
DE3855405D1 (de)	1996-08-14	Aufzeichnungsgerät
DE69024890D1 (de)	1996-02-29	Aufzeichnungsapparat
DE69121312D1 (de)	1996-09-19	Geräuschsignalvorhersagevorrichtung
DE69120611D1 (de)	1996-08-08	Aufzeichnungsgerät
NO904934L (no)	1996-01-12	Forsterker for bredbÕnds-hyperfrekvenssignaler
DE68926203D1 (de)	1996-05-15	Aufzeichnungsgerät
DE69029387D1 (de)	1997-01-23	Aufzeichnungsgerät
DE69031298D1 (de)	1997-09-25	Aufzeichnungsgerät
DE68926230D1 (de)	1996-05-15	Rauschmessung für Videosignale
DE3751025D1 (de)	1995-03-09	Rauschverminderungsvorrichtung für Videosignal.
DE69119685D1 (de)	1996-06-27	Aufzeichnungsgerät
DE68929465D1 (de)	2003-06-12	Aufzeichnungsgerät
KR890021640U (ko)	1989-11-02	Vtr의 fm신호 전달 기록 시스템
DE69230014D1 (de)	1999-10-28	Logarithmischer Verstärker für Zwischenfrequenzsignale
DE69027661D1 (de)	1996-08-08	Aufzeichnungsgerät
DK486984A (da)	1985-04-13	Signalmodtager
DE69018703D1 (de)	1995-05-24	Aufzeichnungs-Wiedergabegerät für Signale.
DE69025250D1 (de)	1996-03-21	Rauschunterdrückungsschaltungen für Videosignale
KR910006276U (ko)	1991-04-24	테이프 레코더
KR960011848A (ko)	1996-04-20	디지탈 신호 기록 장치
DE69124044D1 (de)	1997-02-20	Aufzeichnungsgerät
DE69033610D1 (de)	2000-09-21	Aufzeichnungsgerät