FR2616609B1 - Circuit d'elimination du bruit d'un signal video - Google Patents
Circuit d'elimination du bruit d'un signal videoInfo
- Publication number
- FR2616609B1 FR2616609B1 FR888807715A FR8807715A FR2616609B1 FR 2616609 B1 FR2616609 B1 FR 2616609B1 FR 888807715 A FR888807715 A FR 888807715A FR 8807715 A FR8807715 A FR 8807715A FR 2616609 B1 FR2616609 B1 FR 2616609B1
- Authority
- FR
- France
- Prior art keywords
- eliminating
- noise
- circuit
- video signal
- video
- 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.)
- Expired - Lifetime
Links
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
- H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Picture Signal Circuits (AREA)
- Television Signal Processing For Recording (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62143773A JP2508442B2 (ja) | 1987-06-09 | 1987-06-09 | ノイズ除去回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2616609A1 FR2616609A1 (fr) | 1988-12-16 |
FR2616609B1 true FR2616609B1 (fr) | 1992-03-27 |
Family
ID=15346684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR888807715A Expired - Lifetime FR2616609B1 (fr) | 1987-06-09 | 1988-06-09 | Circuit d'elimination du bruit d'un signal video |
Country Status (6)
Country | Link |
---|---|
US (1) | US4885639A (fr) |
JP (1) | JP2508442B2 (fr) |
KR (1) | KR0140226B1 (fr) |
DE (1) | DE3819725C2 (fr) |
FR (1) | FR2616609B1 (fr) |
GB (2) | GB2206012B (fr) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63232578A (ja) * | 1987-03-19 | 1988-09-28 | Sony Corp | ノイズ低減回路 |
JPS63233677A (ja) * | 1987-03-20 | 1988-09-29 | Sony Corp | ノイズ低減回路 |
GB2234133B (en) * | 1989-07-14 | 1993-11-10 | Mitsubishi Electric Corp | Video signal processing apparatus |
JPH03112275A (ja) * | 1989-09-27 | 1991-05-13 | Sony Corp | 雑音低減回路 |
US5105275A (en) * | 1990-01-31 | 1992-04-14 | Sanyo Electric Co., Ltd. | Noise reduction circuit for video signal recording/reproduction device |
US5249064A (en) * | 1990-07-02 | 1993-09-28 | Akai Electric Co., Ltd. | Noise canceller for use in a magnetic reproducing apparatus |
US5257109A (en) * | 1990-07-02 | 1993-10-26 | Akai Electric Co., Ltd. | Magnetic recording and reproducing apparatus |
JPH0468923A (ja) * | 1990-07-09 | 1992-03-04 | Sony Corp | ノンリニアプリエンファシス・デエンファシスシステム |
GB2250395A (en) * | 1990-11-27 | 1992-06-03 | Ferguson Ltd | Reducing visibility of impulsive interference in television satellite recievers |
KR960004134B1 (ko) * | 1991-06-03 | 1996-03-26 | 삼성전자주식회사 | 임펄스 노이즈 제거방법 및 회로 |
GB2256991A (en) * | 1991-06-07 | 1992-12-23 | Clarion Co Ltd | Impulse noise eliminating circuit for a television receiver |
JP3139798B2 (ja) * | 1991-12-10 | 2001-03-05 | 株式会社東芝 | 信号ノイズ低減装置 |
FI89850C (fi) * | 1991-12-30 | 1993-11-25 | Salon Televisiotehdas Oy | Foerfarande och filter foer avlaegsning av brus fraon en bildsekvens |
JP2859526B2 (ja) * | 1992-10-30 | 1999-02-17 | 三星電子株式会社 | 映像信号のノイズ除去回路 |
DE4314980C1 (de) * | 1993-05-06 | 1994-09-29 | Mb Video Gmbh | Verfahren zur Verminderung des Rauschens eines Videosignals |
JP2705569B2 (ja) * | 1994-04-27 | 1998-01-28 | 日本電気株式会社 | ノイズ除去回路 |
JP3863294B2 (ja) * | 1998-07-02 | 2006-12-27 | 株式会社日立製作所 | ノイズ低減信号処理回路および映像表示装置 |
KR100541961B1 (ko) * | 2004-06-08 | 2006-01-12 | 삼성전자주식회사 | 선명도 향상 및 잡음처리가 가능한 영상신호 처리장치 및방법 |
US8269727B2 (en) | 2007-01-03 | 2012-09-18 | Apple Inc. | Irregular input identification |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56698Y2 (fr) * | 1976-01-09 | 1981-01-09 | ||
GB2020508B (en) * | 1978-03-08 | 1983-03-09 | Nippon Electric Co | Noise reduction system for colour television signal |
JPS54143021A (en) * | 1978-04-28 | 1979-11-07 | Sony Corp | Processing circuit of video signal |
NL8102181A (nl) * | 1981-05-04 | 1982-12-01 | Philips Nv | Ruisonderdrukkingsschakeling voor een videosignaal. |
JPS5939575U (ja) * | 1982-09-02 | 1984-03-13 | ソニー株式会社 | ノイズリダクシヨン回路 |
JPS60167574A (ja) * | 1984-02-10 | 1985-08-30 | Toshiba Corp | 画像ノイズ除去装置 |
JPS6125377A (ja) * | 1984-07-13 | 1986-02-04 | Victor Co Of Japan Ltd | ノイズリダクシヨン回路 |
DE3530299A1 (de) * | 1985-08-26 | 1987-03-05 | Bosch Gmbh Robert | Schaltungsanordnung zur reduzierung des kantenrauschens bei der uebertragung von videosignalen |
JPS6251883A (ja) * | 1985-08-30 | 1987-03-06 | Victor Co Of Japan Ltd | ノイズ抑圧回路 |
US4748498A (en) * | 1985-11-19 | 1988-05-31 | Matsushita Electric Industrial Co., Ltd. | Luminance signal processing circuit with recursive filter for reducing noise while retaining a high vertical resolution |
-
1987
- 1987-06-09 JP JP62143773A patent/JP2508442B2/ja not_active Expired - Fee Related
-
1988
- 1988-06-06 US US07/202,822 patent/US4885639A/en not_active Expired - Lifetime
- 1988-06-08 GB GB8813525A patent/GB2206012B/en not_active Expired - Lifetime
- 1988-06-09 FR FR888807715A patent/FR2616609B1/fr not_active Expired - Lifetime
- 1988-06-09 DE DE3819725A patent/DE3819725C2/de not_active Expired - Fee Related
- 1988-06-09 KR KR1019880006907A patent/KR0140226B1/ko not_active IP Right Cessation
-
1991
- 1991-05-31 GB GB9111725A patent/GB2243745B/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE3819725C2 (de) | 1996-07-25 |
GB9111725D0 (en) | 1991-07-24 |
KR0140226B1 (ko) | 1998-06-15 |
DE3819725A1 (de) | 1989-01-05 |
JPS63306773A (ja) | 1988-12-14 |
GB2243745A (en) | 1991-11-06 |
JP2508442B2 (ja) | 1996-06-19 |
FR2616609A1 (fr) | 1988-12-16 |
GB2243745B (en) | 1992-02-12 |
GB2206012B (en) | 1992-02-05 |
GB8813525D0 (en) | 1988-07-13 |
GB2206012A (en) | 1988-12-21 |
US4885639A (en) | 1989-12-05 |
KR890001071A (ko) | 1989-03-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |