HK33882A - Circuit for suppressing noise caused by scratches on a gramophone record - Google Patents
Circuit for suppressing noise caused by scratches on a gramophone recordInfo
- Publication number
- HK33882A HK33882A HK338/82A HK33882A HK33882A HK 33882 A HK33882 A HK 33882A HK 338/82 A HK338/82 A HK 338/82A HK 33882 A HK33882 A HK 33882A HK 33882 A HK33882 A HK 33882A
- Authority
- HK
- Hong Kong
- Prior art keywords
- scratches
- circuit
- noise caused
- suppressing noise
- gramophone record
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
- H03G3/345—Muting during a short period of time when noise pulses are detected, i.e. blanking
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Confectionery (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7712534A NL7712534A (nl) | 1977-11-15 | 1977-11-15 | Schakeling voor het onderdrukken van storingen tengevolge van krassen in een grammofoonplaat. |
Publications (1)
Publication Number | Publication Date |
---|---|
HK33882A true HK33882A (en) | 1982-07-30 |
Family
ID=19829537
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK338/82A HK33882A (en) | 1977-11-15 | 1982-07-22 | Circuit for suppressing noise caused by scratches on a gramophone record |
Country Status (15)
Country | Link |
---|---|
JP (1) | JPS5479002A (xx) |
AR (1) | AR216346A1 (xx) |
AT (1) | AT357780B (xx) |
BE (1) | BE871969A (xx) |
BR (1) | BR7807453A (xx) |
CA (1) | CA1110548A (xx) |
DE (1) | DE2849375A1 (xx) |
ES (1) | ES475021A1 (xx) |
FR (1) | FR2408965A1 (xx) |
GB (1) | GB2007945B (xx) |
HK (1) | HK33882A (xx) |
IT (1) | IT1101046B (xx) |
MX (1) | MX147638A (xx) |
NL (1) | NL7712534A (xx) |
SE (1) | SE7811667L (xx) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE430455B (sv) * | 1978-04-21 | 1983-11-14 | Nippon Telegraph & Telephone | Mottagaranordning med funktion att undertrycka brus under plotsliga avbrott |
DE3016779C2 (de) * | 1980-04-30 | 1986-09-18 | Siemens AG, 1000 Berlin und 8000 München | Knackschutz für die digitale Tonprogrammübertragung |
DE3212615C2 (de) * | 1982-04-05 | 1984-09-06 | Bayerische Motoren Werke AG, 8000 München | Verfahren zum Umschalten der Wiedergabe eines Rundfunksignals auf ein anderes Rundfunksignal und Schaltungsanordnung zur Durchführung des Verfahrens |
NL8402322A (nl) * | 1984-07-23 | 1986-02-17 | Philips Nv | Inrichting voor het detekteren van impulsachtige storingen, en een inrichting voor het onderdrukken van impulsachtige storingen voorzien van een inrichting voor het detekteren van impulsachtige storingen. |
-
1977
- 1977-11-15 NL NL7712534A patent/NL7712534A/xx not_active Application Discontinuation
-
1978
- 1978-10-12 AR AR274059A patent/AR216346A1/es active
- 1978-10-26 CA CA314,371A patent/CA1110548A/en not_active Expired
- 1978-11-10 GB GB7844030A patent/GB2007945B/en not_active Expired
- 1978-11-10 IT IT29694/78A patent/IT1101046B/it active
- 1978-11-10 MX MX175572A patent/MX147638A/es unknown
- 1978-11-13 FR FR7831985A patent/FR2408965A1/fr not_active Withdrawn
- 1978-11-13 BE BE191692A patent/BE871969A/xx unknown
- 1978-11-13 AT AT811878A patent/AT357780B/de active
- 1978-11-13 BR BR7807453A patent/BR7807453A/pt unknown
- 1978-11-13 SE SE7811667A patent/SE7811667L/xx unknown
- 1978-11-13 ES ES475021A patent/ES475021A1/es not_active Expired
- 1978-11-14 DE DE19782849375 patent/DE2849375A1/de not_active Withdrawn
- 1978-11-15 JP JP14171078A patent/JPS5479002A/ja active Pending
-
1982
- 1982-07-22 HK HK338/82A patent/HK33882A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
SE7811667L (sv) | 1979-05-16 |
JPS5479002A (en) | 1979-06-23 |
GB2007945A (en) | 1979-05-23 |
MX147638A (es) | 1982-12-24 |
AT357780B (de) | 1980-07-25 |
ES475021A1 (es) | 1979-04-16 |
AR216346A1 (es) | 1979-12-14 |
BR7807453A (pt) | 1979-07-17 |
NL7712534A (nl) | 1979-05-17 |
GB2007945B (en) | 1982-05-06 |
FR2408965A1 (fr) | 1979-06-08 |
CA1110548A (en) | 1981-10-13 |
BE871969A (fr) | 1979-05-14 |
DE2849375A1 (de) | 1979-05-17 |
IT1101046B (it) | 1985-09-28 |
IT7829694A0 (it) | 1978-11-10 |
ATA811878A (de) | 1979-12-15 |
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