NL7708253A - NOISE REDUCTION CIRCUIT, ESPECIALLY WHEN PLAYING RECORDED VIDEO SIGNALS, WITH A FREQUENCY DEPENDENT FILTER CIRCUIT. - Google Patents
NOISE REDUCTION CIRCUIT, ESPECIALLY WHEN PLAYING RECORDED VIDEO SIGNALS, WITH A FREQUENCY DEPENDENT FILTER CIRCUIT.Info
- Publication number
- NL7708253A NL7708253A NL7708253A NL7708253A NL7708253A NL 7708253 A NL7708253 A NL 7708253A NL 7708253 A NL7708253 A NL 7708253A NL 7708253 A NL7708253 A NL 7708253A NL 7708253 A NL7708253 A NL 7708253A
- Authority
- NL
- Netherlands
- Prior art keywords
- noise reduction
- video signals
- recorded video
- frequency dependent
- circuit
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/24—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing noise
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/16—Automatic control
- H03G5/24—Automatic control in frequency-selective amplifiers
-
- 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
- H04N5/911—Television signal processing therefor for the suppression of noise
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Picture Signal Circuits (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD76194043A DD139378A1 (en) | 1976-07-26 | 1976-07-26 | CIRCUIT ARRANGEMENT FOR NOISE REDUCTION, IN PARTICULAR IN THE REPRODUCTION OF RECORDED VIDEO SIGNALS, WITH A FREQUENCY-RELATED FILTER ARRANGEMENT |
FR7724740A FR2400298A1 (en) | 1976-07-26 | 1977-08-11 | MOUNTING INTENDED TO REDUCE NOISE, IN PARTICULAR WHEN THE REPRODUCTION OF RECORDED VIDEO SIGNALS, AND INCLUDING FILTERING EQUIPMENT ACTING ACCORDING TO THE FREQUENCY |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7708253A true NL7708253A (en) | 1978-01-30 |
Family
ID=25747573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7708253A NL7708253A (en) | 1976-07-26 | 1977-07-25 | NOISE REDUCTION CIRCUIT, ESPECIALLY WHEN PLAYING RECORDED VIDEO SIGNALS, WITH A FREQUENCY DEPENDENT FILTER CIRCUIT. |
Country Status (5)
Country | Link |
---|---|
DD (1) | DD139378A1 (en) |
DE (1) | DE2731567A1 (en) |
FR (1) | FR2400298A1 (en) |
GB (1) | GB1586875A (en) |
NL (1) | NL7708253A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2490427B1 (en) * | 1980-09-16 | 1986-04-18 | Thomson Csf | DEMODULATOR OF A FREQUENCY MODULATED SIGNAL AND TELEVISION SYSTEM COMPRISING SUCH A DEMODULATOR |
JPS57112188A (en) * | 1980-12-29 | 1982-07-13 | Pioneer Video Corp | Erasing circuit for high frequency crosstalk in video disc reproducing device |
JPS57168593A (en) * | 1981-01-28 | 1982-10-16 | Toshiba Corp | Wide-band color demodulator |
US4472733A (en) * | 1982-09-01 | 1984-09-18 | Rca Corporation | Color channel signal-to-noise improvement in digital television |
JPS62175025A (en) † | 1986-01-25 | 1987-07-31 | Fujitsu Ten Ltd | Noise eliminator |
KR920007491Y1 (en) * | 1989-12-31 | 1992-10-15 | 삼성전자 주식회사 | High quality video recording circuit |
DE19546406C1 (en) * | 1995-12-12 | 1997-05-22 | Becker Gmbh | Digital IF filter circuit for FM receiver |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2488359A (en) * | 1940-03-11 | 1949-11-15 | Hazeltine Research Inc | Frequency-modulated carrier signal receiver |
US3333055A (en) * | 1963-06-01 | 1967-07-25 | Fernseh Gmbh | Apparatus for increasing the signal-to-noise ratio of a television signal |
JPS5428981Y2 (en) * | 1974-06-17 | 1979-09-17 | ||
US3288930A (en) * | 1964-11-12 | 1966-11-29 | Winston Res Corp | Wide-band signal-translating channel |
FR2032118A5 (en) * | 1969-02-19 | 1970-11-20 | Thomson Csf | |
US3872387A (en) * | 1972-09-29 | 1975-03-18 | Zenith Radio Corp | Frequency response modifier for fixed-tuned IF amplifiers |
-
1976
- 1976-07-26 DD DD76194043A patent/DD139378A1/en unknown
-
1977
- 1977-07-13 DE DE19772731567 patent/DE2731567A1/en not_active Withdrawn
- 1977-07-25 NL NL7708253A patent/NL7708253A/en not_active Application Discontinuation
- 1977-07-25 GB GB31155/77A patent/GB1586875A/en not_active Expired
- 1977-08-11 FR FR7724740A patent/FR2400298A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DD139378A1 (en) | 1979-12-27 |
FR2400298A1 (en) | 1979-03-09 |
DE2731567A1 (en) | 1978-02-02 |
GB1586875A (en) | 1981-03-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BV | The patent application has lapsed |