DE2730131C2 - - Google Patents
Info
- Publication number
- DE2730131C2 DE2730131C2 DE2730131A DE2730131A DE2730131C2 DE 2730131 C2 DE2730131 C2 DE 2730131C2 DE 2730131 A DE2730131 A DE 2730131A DE 2730131 A DE2730131 A DE 2730131A DE 2730131 C2 DE2730131 C2 DE 2730131C2
- Authority
- DE
- Germany
- Prior art keywords
- circuit
- frequency
- signals
- emphasis
- linear
- 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
- 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
- H04N9/7917—Suppression of interfering signals at the reproducing side, e.g. noise the interfering signals being cross-talk signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N5/923—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback using preemphasis of the signal before modulation and deemphasis of the signal after demodulation
-
- 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
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
- H04N9/83—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only the recorded chrominance signal occupying a frequency band under the frequency band of the recorded brightness signal
- H04N9/84—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only the recorded chrominance signal occupying a frequency band under the frequency band of the recorded brightness signal the recorded signal showing a feature, which is different in adjacent track parts, e.g. different phase or frequency
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Signal Processing For Recording (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51080127A JPS606034B2 (ja) | 1976-07-06 | 1976-07-06 | 磁気記録装置 |
| JP2185077A JPS53106106A (en) | 1977-02-28 | 1977-02-28 | Signal transmitting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2730131A1 DE2730131A1 (de) | 1978-01-19 |
| DE2730131C2 true DE2730131C2 (US20100223739A1-20100909-C00025.png) | 1991-06-20 |
Family
ID=26358975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19772730131 Granted DE2730131A1 (de) | 1976-07-06 | 1977-07-04 | Einrichtung zur eliminierung von stoergeraeuschen bzw. von nebenwiedergabe bei der aufzeichnung und wiedergabe von fernsehsignalgemischen |
Country Status (12)
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4396953A (en) * | 1979-12-06 | 1983-08-02 | Victor Company Of Japan, Ltd. | Color video signal dubbing system for collating the outputs of signal sources |
| JPS57125588A (en) * | 1981-01-29 | 1982-08-04 | Sony Corp | Digital reproducing device for video signal |
| JPS57138009A (en) * | 1981-02-20 | 1982-08-26 | Hitachi Ltd | Magnetic recorder and reproducer |
| JPS57140085A (en) * | 1981-02-23 | 1982-08-30 | Hitachi Ltd | Audio signal recording and reproducing circuit |
| JPS57166786A (en) * | 1981-04-06 | 1982-10-14 | Sony Corp | Video signal processing circuit |
| JPS5812149A (ja) * | 1981-07-15 | 1983-01-24 | Nippon Columbia Co Ltd | ビデオ・デイスク及びその記録装置 |
| DE3269852D1 (en) * | 1981-10-14 | 1986-04-17 | Telefunken Fernseh & Rundfunk | Circuit for reducing the rise-time of the flanks of a video signal, in particular for a video recorder |
| US4630132A (en) * | 1982-12-08 | 1986-12-16 | Hitachi, Ltd. | Video signal recording/reproducing apparatus |
| JPS61210564A (ja) * | 1985-02-18 | 1986-09-18 | Toshiba Corp | 記録媒体 |
| US4761690A (en) * | 1985-09-05 | 1988-08-02 | Matsushita Electric Industrial Co., Ltd. | Video tape recorder with particular format chrominance and luminance information |
| DE3869148D1 (de) * | 1987-01-27 | 1992-04-23 | Victor Company Of Japan | Geraet zur magnetischen aufzeichnung und/oder wiedergabe. |
| US5126846A (en) * | 1988-08-08 | 1992-06-30 | Kabushiki Kaisha Toshiba | Non-linear amplifier and non-linear emphasis/deemphasis circuit using the same |
| KR940002656Y1 (ko) * | 1989-05-26 | 1994-04-22 | 삼성전자 주식회사 | 디지탈 vcr의 동기 신호 공유회로 |
| JP2768741B2 (ja) * | 1989-06-12 | 1998-06-25 | パイオニア株式会社 | 情報記録装置 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3288930A (en) * | 1964-11-12 | 1966-11-29 | Winston Res Corp | Wide-band signal-translating channel |
| 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 |
| US3781488A (en) * | 1971-06-22 | 1973-12-25 | Bell & Howell Co | Playback system with frequency equalization by cascaded circuits performing in accordance with partial fraction expansions of factorial equalizing function terms |
| US3729693A (en) * | 1971-08-02 | 1973-04-24 | R Dolby | Compressor/expander switching methods and apparatus |
-
1977
- 1977-06-29 GB GB27260/77A patent/GB1579138A/en not_active Expired
- 1977-07-01 AU AU26685/77A patent/AU514329B2/en not_active Expired
- 1977-07-04 DE DE19772730131 patent/DE2730131A1/de active Granted
- 1977-07-05 ES ES460412A patent/ES460412A1/es not_active Expired
- 1977-07-05 CA CA000282039A patent/CA1119286A/en not_active Expired
- 1977-07-05 SE SE7707847A patent/SE438934B/xx not_active IP Right Cessation
- 1977-07-06 AT AT0484677A patent/AT378884B/de not_active IP Right Cessation
- 1977-07-06 FR FR7720838A patent/FR2357974A1/fr active Granted
- 1977-07-06 IT IT50150/77A patent/IT1079752B/it active
- 1977-07-06 NL NL7707529A patent/NL192861C/nl not_active IP Right Cessation
- 1977-07-06 BR BR7704424A patent/BR7704424A/pt unknown
-
1978
- 1978-06-15 ES ES470840A patent/ES470840A1/es not_active Expired
- 1978-06-15 ES ES470841A patent/ES470841A1/es not_active Expired
- 1978-12-21 US US05/971,678 patent/US4290082A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| AU514329B2 (en) | 1981-02-05 |
| NL7707529A (nl) | 1978-01-10 |
| ES470840A1 (es) | 1979-02-01 |
| DE2730131A1 (de) | 1978-01-19 |
| FR2357974A1 (fr) | 1978-02-03 |
| GB1579138A (en) | 1980-11-12 |
| ES470841A1 (es) | 1979-02-01 |
| BR7704424A (pt) | 1978-04-04 |
| ATA484677A (de) | 1985-02-15 |
| AU2668577A (en) | 1979-01-04 |
| SE7707847L (sv) | 1978-01-07 |
| SE438934B (sv) | 1985-05-13 |
| FR2357974B1 (US20100223739A1-20100909-C00025.png) | 1982-12-10 |
| NL192861C (nl) | 1998-03-04 |
| IT1079752B (it) | 1985-05-13 |
| NL192861B (nl) | 1997-11-03 |
| US4290082A (en) | 1981-09-15 |
| CA1119286A (en) | 1982-03-02 |
| AT378884B (de) | 1985-10-10 |
| ES460412A1 (es) | 1978-12-01 |
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|---|---|---|
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| DE2730131C2 (US20100223739A1-20100909-C00025.png) | ||
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition |