CA1230675A - Secondary beat signal cancel circuit - Google Patents
Secondary beat signal cancel circuitInfo
- Publication number
- CA1230675A CA1230675A CA000461327A CA461327A CA1230675A CA 1230675 A CA1230675 A CA 1230675A CA 000461327 A CA000461327 A CA 000461327A CA 461327 A CA461327 A CA 461327A CA 1230675 A CA1230675 A CA 1230675A
- Authority
- CA
- Canada
- Prior art keywords
- signal
- circuit
- secondary beat
- amplitude
- luminance
- 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
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- 238000010586 diagram Methods 0.000 description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical group [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 241000282320 Panthera leo Species 0.000 description 2
- ZPUCINDJVBIVPJ-LJISPDSOSA-N cocaine Chemical compound O([C@H]1C[C@@H]2CC[C@@H](N2C)[C@H]1C(=O)OC)C(=O)C1=CC=CC=C1 ZPUCINDJVBIVPJ-LJISPDSOSA-N 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
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- 244000298697 Actinidia deliciosa Species 0.000 description 1
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- 240000001546 Byrsonima crassifolia Species 0.000 description 1
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- 101150087426 Gnal gene Proteins 0.000 description 1
- JEYCTXHKTXCGPB-UHFFFAOYSA-N Methaqualone Chemical compound CC1=CC=CC=C1N1C(=O)C2=CC=CC=C2N=C1C JEYCTXHKTXCGPB-UHFFFAOYSA-N 0.000 description 1
- 206010058709 Sopor Diseases 0.000 description 1
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- 239000003990 capacitor Substances 0.000 description 1
- 238000009223 counseling Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/7908—Suppression of interfering signals at the reproducing side, e.g. noise
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/7908—Suppression of interfering signals at the reproducing side, e.g. noise
- H04N9/7912—Suppression of interfering signals at the reproducing side, e.g. noise the interfering signals being intermodulation signals
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
- Noise Elimination (AREA)
- Optical Communication System (AREA)
- Picture Signal Circuits (AREA)
- Digital Magnetic Recording (AREA)
- Television Signal Processing For Recording (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58159461A JPS6051388A (ja) | 1983-08-31 | 1983-08-31 | 記録再生装置の二次ビートキャンセル回路 |
| JP159461/83 | 1983-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1230675A true CA1230675A (en) | 1987-12-22 |
Family
ID=15694266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000461327A Expired CA1230675A (en) | 1983-08-31 | 1984-08-20 | Secondary beat signal cancel circuit |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4998172A (OSRAM) |
| EP (1) | EP0137994B1 (OSRAM) |
| JP (1) | JPS6051388A (OSRAM) |
| AT (1) | ATE59124T1 (OSRAM) |
| AU (1) | AU572879B2 (OSRAM) |
| CA (1) | CA1230675A (OSRAM) |
| DE (1) | DE3483739D1 (OSRAM) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR890004853B1 (ko) * | 1985-01-28 | 1989-11-29 | 미쓰비시전기 주식회사 | 영상신호 처리회로 |
| JPS6318811A (ja) * | 1986-07-11 | 1988-01-26 | Victor Co Of Japan Ltd | 雑音低減回路 |
| JPH0748876B2 (ja) * | 1986-11-25 | 1995-05-24 | 松下電器産業株式会社 | 再生装置 |
| JPS63174498A (ja) * | 1987-01-14 | 1988-07-18 | Matsushita Electric Ind Co Ltd | ビデオテ−プレコ−ダ |
| JPH01117573A (ja) * | 1987-10-30 | 1989-05-10 | Pioneer Electron Corp | ビデオ信号のノイズ抑制装置 |
| JP2523886B2 (ja) * | 1989-08-04 | 1996-08-14 | 松下電器産業株式会社 | ドット妨害除去装置及び色副搬送波垂直相関検出装置 |
| EP0433032A3 (en) * | 1989-12-15 | 1992-08-05 | Matsushita Electric Industrial Co., Ltd. | Signal reproducing apparatus |
| JPH0414989A (ja) * | 1990-05-09 | 1992-01-20 | Sony Corp | パイロット信号除去回路 |
| JPH0468692A (ja) * | 1990-07-04 | 1992-03-04 | Akai Electric Co Ltd | 磁気再生装置におけるノイズキャンセラ |
| JP2993063B2 (ja) * | 1990-07-05 | 1999-12-20 | ソニー株式会社 | ミラーマザーｖｔｒの記録回路 |
| JP2646895B2 (ja) * | 1991-06-21 | 1997-08-27 | 日本ビクター株式会社 | 情報再生装置 |
| DE4128184A1 (de) * | 1991-08-24 | 1993-02-25 | Thomson Brandt Gmbh | Schaltung zur verringerung von farbstoerungen in einem videorecorder |
| DE4341623A1 (de) * | 1993-12-07 | 1995-06-08 | Mb Video Gmbh | Verfahren zur Rauschunterdrückung und Rauschunterdrückungsschaltung für Videorecorder |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3626087A (en) * | 1968-10-07 | 1971-12-07 | Sony Corp | Magnetic recording and reproducing device for color video signals |
| US3715468A (en) * | 1969-02-21 | 1973-02-06 | Victor Company Of Japan | Color video signal recording and reproducing system |
| US3728475A (en) * | 1969-07-04 | 1973-04-17 | Victor Company Of Japan | Beat signal suppression system for a system for transmitting a frequency modulated wave or a device for recording and reproducing a frequency modulated wave |
| JPS4944535B1 (OSRAM) * | 1970-01-26 | 1974-11-28 | ||
| JPS5034892B1 (OSRAM) * | 1970-01-26 | 1975-11-12 | ||
| US3893168A (en) * | 1974-03-07 | 1975-07-01 | Rca Corp | Technique for minimizing interference in video recorder reproducer systems |
| AU530142B2 (en) * | 1976-08-09 | 1983-07-07 | Rca Corp. | Video disc systems |
| 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 |
| JPS55117712A (en) * | 1979-02-28 | 1980-09-10 | Matsushita Electric Ind Co Ltd | Noise reduction circuit of video signal recording and reproducing device |
| JPS5696590A (en) * | 1979-12-29 | 1981-08-04 | Sony Corp | Playback device for color video signal |
| JPS56153892A (en) * | 1980-04-28 | 1981-11-28 | Sony Corp | Comb type filter |
| JPS56160189A (en) * | 1980-04-29 | 1981-12-09 | Sony Corp | Differential gain compensating circuit |
| JPS573486A (en) * | 1980-06-10 | 1982-01-08 | Victor Co Of Japan Ltd | Color video signal recording and reproducing system |
| JPS57160288A (en) * | 1981-03-30 | 1982-10-02 | Sony Corp | Processing circuit for chrominance signal |
| US4563704A (en) * | 1981-06-19 | 1986-01-07 | Victor Company Of Japan, Ltd. | Noise reduction circuit for a video signal |
-
1983
- 1983-08-31 JP JP58159461A patent/JPS6051388A/ja active Granted
-
1984
- 1984-08-20 CA CA000461327A patent/CA1230675A/en not_active Expired
- 1984-08-21 AU AU32229/84A patent/AU572879B2/en not_active Ceased
- 1984-08-28 AT AT84110226T patent/ATE59124T1/de not_active IP Right Cessation
- 1984-08-28 DE DE8484110226T patent/DE3483739D1/de not_active Expired - Lifetime
- 1984-08-28 EP EP84110226A patent/EP0137994B1/en not_active Expired - Lifetime
-
1987
- 1987-06-16 US US07/061,050 patent/US4998172A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0137994B1 (en) | 1990-12-12 |
| EP0137994A2 (en) | 1985-04-24 |
| AU3222984A (en) | 1985-03-07 |
| ATE59124T1 (de) | 1990-12-15 |
| EP0137994A3 (en) | 1987-05-20 |
| JPH0475713B2 (OSRAM) | 1992-12-01 |
| AU572879B2 (en) | 1988-05-19 |
| JPS6051388A (ja) | 1985-03-22 |
| DE3483739D1 (de) | 1991-01-24 |
| US4998172A (en) | 1991-03-05 |
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| KR930010910B1 (ko) | 상이한 영상시스템간의 재생시 호환성을 유지하는 휘도신호기록회로 및 그 방법 | |
| EP0538980A1 (en) | Component video signal transmitting apparatus | |
| GB1191593A (en) | Method of Magnetic Recording and Reproducing of High-Frequency Signals. | |
| JPS60253393A (ja) | カラ−映像信号記録再生装置 | |
| JPS60218988A (ja) | ビデオテ−プレコ−ダ | |
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| JPS5896482A (ja) | 映像信号の磁気記録装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |