AT357780B - CIRCUIT ARRANGEMENT FOR SUPPRESSING TONE FREQUENCY INTERFERENCE IN A SIGNAL FROM A RECORD - Google Patents
CIRCUIT ARRANGEMENT FOR SUPPRESSING TONE FREQUENCY INTERFERENCE IN A SIGNAL FROM A RECORDInfo
- Publication number
- AT357780B AT357780B AT811878A AT811878A AT357780B AT 357780 B AT357780 B AT 357780B AT 811878 A AT811878 A AT 811878A AT 811878 A AT811878 A AT 811878A AT 357780 B AT357780 B AT 357780B
- Authority
- AT
- Austria
- Prior art keywords
- record
- signal
- circuit arrangement
- frequency interference
- tone frequency
- 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 (en) | 1977-11-15 | 1977-11-15 | CIRCUIT FOR SUPPRESSING FAULTS DUE TO SCRATCHES IN A GRAMOPHONE DISC. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ATA811878A ATA811878A (en) | 1979-12-15 |
| AT357780B true AT357780B (en) | 1980-07-25 |
Family
ID=19829537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT811878A AT357780B (en) | 1977-11-15 | 1978-11-13 | CIRCUIT ARRANGEMENT FOR SUPPRESSING TONE FREQUENCY INTERFERENCE IN A SIGNAL FROM A RECORD |
Country Status (15)
| Country | Link |
|---|---|
| JP (1) | JPS5479002A (en) |
| AR (1) | AR216346A1 (en) |
| AT (1) | AT357780B (en) |
| BE (1) | BE871969A (en) |
| BR (1) | BR7807453A (en) |
| CA (1) | CA1110548A (en) |
| DE (1) | DE2849375A1 (en) |
| ES (1) | ES475021A1 (en) |
| FR (1) | FR2408965A1 (en) |
| GB (1) | GB2007945B (en) |
| HK (1) | HK33882A (en) |
| IT (1) | IT1101046B (en) |
| MX (1) | MX147638A (en) |
| NL (1) | NL7712534A (en) |
| SE (1) | SE7811667L (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE430455B (en) * | 1978-04-21 | 1983-11-14 | Nippon Telegraph & Telephone | RECEIVER DEVICE WITH THE FUNCTION TO COMPRESS NOISE DURING Sudden Interruptions |
| DE3016779C2 (en) * | 1980-04-30 | 1986-09-18 | Siemens AG, 1000 Berlin und 8000 München | Click protection for digital audio program transmission |
| DE3212615C2 (en) * | 1982-04-05 | 1984-09-06 | Bayerische Motoren Werke AG, 8000 München | Method for switching the reproduction of a broadcast signal to another broadcast signal and circuit arrangement for carrying out the method |
| NL8402322A (en) * | 1984-07-23 | 1986-02-17 | Philips Nv | DEVICE FOR DETECTING IMPULSE INTERFERENCES, AND A DEVICE FOR SUPPRESSING IMPULSE INTERFERENCES, INCLUDING DEVICE FOR DETECTING IMPULSE INTERFERENCES. |
-
1977
- 1977-11-15 NL NL7712534A patent/NL7712534A/en not_active Application Discontinuation
-
1978
- 1978-10-12 AR AR274059A patent/AR216346A1/en 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/en active
- 1978-11-10 MX MX175572A patent/MX147638A/en unknown
- 1978-11-13 FR FR7831985A patent/FR2408965A1/en not_active Withdrawn
- 1978-11-13 BE BE191692A patent/BE871969A/en unknown
- 1978-11-13 AT AT811878A patent/AT357780B/en active
- 1978-11-13 BR BR7807453A patent/BR7807453A/en unknown
- 1978-11-13 SE SE7811667A patent/SE7811667L/en unknown
- 1978-11-13 ES ES475021A patent/ES475021A1/en not_active Expired
- 1978-11-14 DE DE19782849375 patent/DE2849375A1/en not_active Withdrawn
- 1978-11-15 JP JP14171078A patent/JPS5479002A/en active Pending
-
1982
- 1982-07-22 HK HK338/82A patent/HK33882A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE7811667L (en) | 1979-05-16 |
| HK33882A (en) | 1982-07-30 |
| JPS5479002A (en) | 1979-06-23 |
| GB2007945A (en) | 1979-05-23 |
| MX147638A (en) | 1982-12-24 |
| ES475021A1 (en) | 1979-04-16 |
| AR216346A1 (en) | 1979-12-14 |
| BR7807453A (en) | 1979-07-17 |
| NL7712534A (en) | 1979-05-17 |
| GB2007945B (en) | 1982-05-06 |
| FR2408965A1 (en) | 1979-06-08 |
| CA1110548A (en) | 1981-10-13 |
| BE871969A (en) | 1979-05-14 |
| DE2849375A1 (en) | 1979-05-17 |
| IT1101046B (en) | 1985-09-28 |
| IT7829694A0 (en) | 1978-11-10 |
| ATA811878A (en) | 1979-12-15 |
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