JPH0358233B2 - - Google Patents
Info
- Publication number
- JPH0358233B2 JPH0358233B2 JP59145691A JP14569184A JPH0358233B2 JP H0358233 B2 JPH0358233 B2 JP H0358233B2 JP 59145691 A JP59145691 A JP 59145691A JP 14569184 A JP14569184 A JP 14569184A JP H0358233 B2 JPH0358233 B2 JP H0358233B2
- Authority
- JP
- Japan
- Prior art keywords
- noise reduction
- circuit
- limiter
- reduction circuit
- correlation
- 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
- 230000001934 delay Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 21
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 230000002411 adverse Effects 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 1
- 238000000034 method Methods 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
- H04N5/213—Circuitry for suppressing or minimising impulsive noise
-
- 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)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14569184A JPS6125377A (ja) | 1984-07-13 | 1984-07-13 | ノイズリダクシヨン回路 |
| KR1019850004112A KR900002384B1 (ko) | 1984-07-13 | 1985-06-12 | 잡음 저감 회로 |
| US06/754,628 US4635120A (en) | 1984-07-13 | 1985-07-12 | Noise reduction circuit for video signal |
| DE8585305053T DE3585339D1 (de) | 1984-07-13 | 1985-07-15 | Schaltung zur verminderung des rauschens fuer ein videosignal. |
| EP85305053A EP0169052B1 (en) | 1984-07-13 | 1985-07-15 | Noise reduction circuit for video signal |
| DE198585305053T DE169052T1 (de) | 1984-07-13 | 1985-07-15 | Schaltung zur verminderung des rauschens fuer ein videosignal. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14569184A JPS6125377A (ja) | 1984-07-13 | 1984-07-13 | ノイズリダクシヨン回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6125377A JPS6125377A (ja) | 1986-02-04 |
| JPH0358233B2 true JPH0358233B2 (OSRAM) | 1991-09-04 |
Family
ID=15390865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14569184A Granted JPS6125377A (ja) | 1984-07-13 | 1984-07-13 | ノイズリダクシヨン回路 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4635120A (OSRAM) |
| EP (1) | EP0169052B1 (OSRAM) |
| JP (1) | JPS6125377A (OSRAM) |
| KR (1) | KR900002384B1 (OSRAM) |
| DE (2) | DE169052T1 (OSRAM) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62239670A (ja) * | 1986-04-11 | 1987-10-20 | Ikegami Tsushinki Co Ltd | 輪郭強調装置 |
| JPH07123307B2 (ja) * | 1986-05-20 | 1995-12-25 | ソニー株式会社 | Y/c分離回路 |
| JPS62299181A (ja) * | 1986-06-18 | 1987-12-26 | Sanyo Electric Co Ltd | テレビジヨン信号のノイズ低減方式 |
| JPS63296478A (ja) * | 1987-05-28 | 1988-12-02 | Nippon Hoso Kyokai <Nhk> | 固体撮像装置 |
| JP2508442B2 (ja) * | 1987-06-09 | 1996-06-19 | ソニー株式会社 | ノイズ除去回路 |
| JPH02121574A (ja) * | 1988-10-31 | 1990-05-09 | Nippon Television Network Corp | Tv垂直周波数信号の振幅特性の改善方式 |
| US4987481A (en) * | 1989-04-28 | 1991-01-22 | Walker Digital Audio Video Systems, Inc. | Video noise reduction system |
| 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 |
| 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 |
| JP2698263B2 (ja) * | 1990-12-20 | 1998-01-19 | 三洋電機株式会社 | 波形検出回路 |
| JP3094903B2 (ja) * | 1995-06-08 | 2000-10-03 | 松下電器産業株式会社 | テレビジョン信号変換装置、および画像符号化装置 |
| CN102150421A (zh) * | 2008-12-22 | 2011-08-10 | 松下电器产业株式会社 | 图像噪声去除装置及方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5910621B2 (ja) * | 1975-01-08 | 1984-03-10 | 日本電気株式会社 | デ−タ伝送復調器 |
| US4459700A (en) * | 1975-05-28 | 1984-07-10 | The United States Of America As Represented By The Secretary Of The Navy | Adaptive MTI system |
| JPS592228B2 (ja) * | 1978-12-14 | 1984-01-17 | 松下電器産業株式会社 | テレビジョン信号の雑音除去方式 |
| US4563704A (en) * | 1981-06-19 | 1986-01-07 | Victor Company Of Japan, Ltd. | Noise reduction circuit for a video signal |
| US4434438A (en) * | 1981-07-10 | 1984-02-28 | Matsushita Electric Industrial Co., Ltd. | Low cost automatic equalizer |
| US4457007A (en) * | 1982-11-29 | 1984-06-26 | The United States Of America As Represented By The Secretary Of The Army | Multipath interference reduction system |
-
1984
- 1984-07-13 JP JP14569184A patent/JPS6125377A/ja active Granted
-
1985
- 1985-06-12 KR KR1019850004112A patent/KR900002384B1/ko not_active Expired
- 1985-07-12 US US06/754,628 patent/US4635120A/en not_active Expired - Lifetime
- 1985-07-15 DE DE198585305053T patent/DE169052T1/de active Pending
- 1985-07-15 DE DE8585305053T patent/DE3585339D1/de not_active Expired - Lifetime
- 1985-07-15 EP EP85305053A patent/EP0169052B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE3585339D1 (de) | 1992-03-19 |
| KR860001664A (ko) | 1986-03-20 |
| JPS6125377A (ja) | 1986-02-04 |
| EP0169052A2 (en) | 1986-01-22 |
| EP0169052A3 (en) | 1988-03-16 |
| DE169052T1 (de) | 1986-04-30 |
| US4635120A (en) | 1987-01-06 |
| EP0169052B1 (en) | 1992-02-05 |
| KR900002384B1 (ko) | 1990-04-13 |
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| EP0595663B1 (en) | Noise reduction for video signals | |
| JPH0358233B2 (OSRAM) | ||
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| JPH0523671B2 (OSRAM) | ||
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |