JPH0115229B2 - - Google Patents
Info
- Publication number
- JPH0115229B2 JPH0115229B2 JP58229348A JP22934883A JPH0115229B2 JP H0115229 B2 JPH0115229 B2 JP H0115229B2 JP 58229348 A JP58229348 A JP 58229348A JP 22934883 A JP22934883 A JP 22934883A JP H0115229 B2 JPH0115229 B2 JP H0115229B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- frequency
- video signal
- input
- 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
Links
- 230000001934 delay Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 12
- 230000006866 deterioration Effects 0.000 description 4
- 230000002596 correlated effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58229348A JPS60121885A (ja) | 1983-12-05 | 1983-12-05 | 映像信号の雑音低減回路 |
KR1019840007358A KR900003066B1 (ko) | 1983-11-26 | 1984-11-23 | 영상 신호의 잡음 저감회로 및 빗살형 필터 |
DE1984308247 DE147073T1 (de) | 1983-12-05 | 1984-11-28 | Schaltung zur rauschverminderung fuer ein videosignal. |
EP19840308247 EP0147073B1 (en) | 1983-11-28 | 1984-11-28 | Noise reduction circuit for a video signal |
DE8484308247T DE3477536D1 (en) | 1983-11-28 | 1984-11-28 | Noise reduction circuit for a video signal |
US06/677,169 US4571613A (en) | 1983-12-05 | 1984-12-03 | Noise reduction circuit for a video signal using a feedback type comb filter and an equalizer circuit |
SG13792A SG13792G (en) | 1983-12-05 | 1992-02-13 | Noise reduction circuit for a video signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58229348A JPS60121885A (ja) | 1983-12-05 | 1983-12-05 | 映像信号の雑音低減回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60121885A JPS60121885A (ja) | 1985-06-29 |
JPH0115229B2 true JPH0115229B2 (US07902200-20110308-C00004.png) | 1989-03-16 |
Family
ID=16890752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58229348A Granted JPS60121885A (ja) | 1983-11-26 | 1983-12-05 | 映像信号の雑音低減回路 |
Country Status (2)
Country | Link |
---|---|
US (1) | US4571613A (US07902200-20110308-C00004.png) |
JP (1) | JPS60121885A (US07902200-20110308-C00004.png) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6184972A (ja) * | 1984-10-03 | 1986-04-30 | Hitachi Ltd | 映像信号の垂直方向エンフアシス回路 |
JPS61121574A (ja) * | 1984-11-19 | 1986-06-09 | Hitachi Ltd | ビデオ信号処理回路 |
JPS61159876A (ja) * | 1984-12-29 | 1986-07-19 | Victor Co Of Japan Ltd | 雑音除去回路 |
US4760449A (en) * | 1985-04-03 | 1988-07-26 | Matsushita Electric Industrial Co., Ltd. | Video signal processing apparatus |
JPS6258793A (ja) * | 1985-09-03 | 1987-03-14 | Victor Co Of Japan Ltd | テレビジヨン信号の同時化回路 |
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 |
JPH0799863B2 (ja) * | 1986-03-28 | 1995-10-25 | ソニー株式会社 | 雑音低減回路 |
JPS6318811A (ja) * | 1986-07-11 | 1988-01-26 | Victor Co Of Japan Ltd | 雑音低減回路 |
JP2548136B2 (ja) * | 1986-07-15 | 1996-10-30 | 松下電器産業株式会社 | 雑音除去装置 |
JPS63233677A (ja) * | 1987-03-20 | 1988-09-29 | Sony Corp | ノイズ低減回路 |
JP3161178B2 (ja) * | 1993-09-16 | 2001-04-25 | 松下電器産業株式会社 | 雑音低減装置 |
US5519454A (en) * | 1995-04-21 | 1996-05-21 | Thomson Consumer Electronics, Inc. | Luma/chroma separation filter with common delay element for comb filter separation and recursive noise reduction of composite video input signal |
JPH09215007A (ja) * | 1996-02-01 | 1997-08-15 | Sony Corp | 映像信号処理回路 |
US6320622B1 (en) * | 1998-09-07 | 2001-11-20 | Infineon Technologies Ag | De-emphasis filter with integrated determination of achromatic values |
US6366880B1 (en) * | 1999-11-30 | 2002-04-02 | Motorola, Inc. | Method and apparatus for suppressing acoustic background noise in a communication system by equaliztion of pre-and post-comb-filtered subband spectral energies |
EP1924044A1 (de) * | 2006-11-16 | 2008-05-21 | Nokia Siemens Networks Gmbh & Co. Kg | Vorrichtung und Verfahren zum Erzeugen eines Signals um das PAR in einem Mehrträgersystem zu reduzieren |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2263678B2 (de) * | 1971-12-27 | 1976-04-29 | Hitachi, Ltd., Tokio | Schaltung zur auftrennung des ntsc-farbfernsehsignals |
JPS54143021A (en) * | 1978-04-28 | 1979-11-07 | Sony Corp | Processing circuit of video signal |
US4390894A (en) * | 1980-08-20 | 1983-06-28 | U.S. Philips Corporation | Noise suppression circuit for a video signal |
JPS57160288A (en) * | 1981-03-30 | 1982-10-02 | Sony Corp | Processing circuit for chrominance signal |
-
1983
- 1983-12-05 JP JP58229348A patent/JPS60121885A/ja active Granted
-
1984
- 1984-12-03 US US06/677,169 patent/US4571613A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4571613A (en) | 1986-02-18 |
JPS60121885A (ja) | 1985-06-29 |
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