JPS628972B2 - - Google Patents
Info
- Publication number
- JPS628972B2 JPS628972B2 JP53123743A JP12374378A JPS628972B2 JP S628972 B2 JPS628972 B2 JP S628972B2 JP 53123743 A JP53123743 A JP 53123743A JP 12374378 A JP12374378 A JP 12374378A JP S628972 B2 JPS628972 B2 JP S628972B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- muting
- npn
- detection
- 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
- 238000001514 detection method Methods 0.000 claims description 37
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
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
- H03G3/34—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
Landscapes
- Noise Elimination (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12374378A JPS5550745A (en) | 1978-10-06 | 1978-10-06 | Muting signal generation circuit for fm receiver |
US06/081,240 US4283793A (en) | 1978-10-06 | 1979-10-02 | Muting signal generation circuit for an FM receiver |
GB7934622A GB2034142B (en) | 1978-10-06 | 1979-10-05 | Muting circuit for an fm receiver |
DE2940456A DE2940456C2 (de) | 1978-10-06 | 1979-10-05 | Rauschsperrschaltung für einen UKW-Rundfunkempfänger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12374378A JPS5550745A (en) | 1978-10-06 | 1978-10-06 | Muting signal generation circuit for fm receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5550745A JPS5550745A (en) | 1980-04-12 |
JPS628972B2 true JPS628972B2 (US07223432-20070529-C00017.png) | 1987-02-25 |
Family
ID=14868221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12374378A Granted JPS5550745A (en) | 1978-10-06 | 1978-10-06 | Muting signal generation circuit for fm receiver |
Country Status (4)
Country | Link |
---|---|
US (1) | US4283793A (US07223432-20070529-C00017.png) |
JP (1) | JPS5550745A (US07223432-20070529-C00017.png) |
DE (1) | DE2940456C2 (US07223432-20070529-C00017.png) |
GB (1) | GB2034142B (US07223432-20070529-C00017.png) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4390749A (en) * | 1981-04-13 | 1983-06-28 | Superscope, Inc. | Noise control system for FM radio |
DE3326062A1 (de) * | 1983-07-20 | 1985-01-31 | Gerhard Prof. Dr.-Ing. 8012 Ottobrunn Flachenecker | Detektor zur anzeige von frequenzstoerhubspitzen |
US5204973A (en) * | 1989-11-17 | 1993-04-20 | Sanyo Electric Co., Ltd. | Receiver capable of quickly suppressing defective effect of multipath reflection interference |
US5920833A (en) * | 1996-01-30 | 1999-07-06 | Lsi Logic Corporation | Audio decoder employing method and apparatus for soft-muting a compressed audio signal |
US5918205A (en) * | 1996-01-30 | 1999-06-29 | Lsi Logic Corporation | Audio decoder employing error concealment technique |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2959673A (en) * | 1957-07-01 | 1960-11-08 | Motorola Inc | Radio receiver squelch control |
US3889192A (en) * | 1973-10-16 | 1975-06-10 | Braun Ag | Arrangement for suppressing noise in an FM receiver |
-
1978
- 1978-10-06 JP JP12374378A patent/JPS5550745A/ja active Granted
-
1979
- 1979-10-02 US US06/081,240 patent/US4283793A/en not_active Expired - Lifetime
- 1979-10-05 GB GB7934622A patent/GB2034142B/en not_active Expired
- 1979-10-05 DE DE2940456A patent/DE2940456C2/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5550745A (en) | 1980-04-12 |
GB2034142A (en) | 1980-05-29 |
US4283793A (en) | 1981-08-11 |
DE2940456C2 (de) | 1983-11-03 |
GB2034142B (en) | 1983-09-01 |
DE2940456A1 (de) | 1980-04-10 |
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