JPS5394160A - Muutuning circuit - Google Patents
Muutuning circuitInfo
- Publication number
- JPS5394160A JPS5394160A JP831277A JP831277A JPS5394160A JP S5394160 A JPS5394160 A JP S5394160A JP 831277 A JP831277 A JP 831277A JP 831277 A JP831277 A JP 831277A JP S5394160 A JPS5394160 A JP S5394160A
- Authority
- JP
- Japan
- Prior art keywords
- muutuning
- circuit
- muutuning circuit
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/007—Protection circuits for transducers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/24—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Noise Elimination (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP831277A JPS5394160A (en) | 1977-01-28 | 1977-01-28 | Muutuning circuit |
DE2802484A DE2802484C3 (de) | 1977-01-28 | 1978-01-20 | Dampfungsschaltung für Lautsprecher |
CA295,857A CA1085741A (en) | 1977-01-28 | 1978-01-27 | Muting circuit for loudspeaker |
US05/873,763 US4127743A (en) | 1977-01-28 | 1978-01-30 | Muting circuit for loudspeaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP831277A JPS5394160A (en) | 1977-01-28 | 1977-01-28 | Muutuning circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5394160A true JPS5394160A (en) | 1978-08-17 |
Family
ID=11689624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP831277A Pending JPS5394160A (en) | 1977-01-28 | 1977-01-28 | Muutuning circuit |
Country Status (4)
Country | Link |
---|---|
US (1) | US4127743A (ja) |
JP (1) | JPS5394160A (ja) |
CA (1) | CA1085741A (ja) |
DE (1) | DE2802484C3 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4301330A (en) * | 1979-09-28 | 1981-11-17 | Zenith Radio Corporation | Loudspeaker protection circuit |
JPS5821907A (ja) * | 1981-08-01 | 1983-02-09 | Sony Corp | 電力増幅器の保護回路 |
US4405948A (en) * | 1982-01-26 | 1983-09-20 | Rca Corporation | Volume control signal coupling circuit in an audio signal processing system |
US4441086A (en) * | 1982-05-13 | 1984-04-03 | General Motors Corporation | Audio system with orderly shutdown sequence |
US4644579A (en) * | 1984-06-28 | 1987-02-17 | International Standard Electric Corporation | Shunt regulator for hands-free telephone |
US4809338A (en) * | 1985-07-05 | 1989-02-28 | Harman International Industries, Incorporated | Automotive sound system |
US4759065A (en) * | 1986-09-22 | 1988-07-19 | Harman International Industries, Incorporated | Automotive sound system |
JP2585249B2 (ja) * | 1987-03-06 | 1997-02-26 | 株式会社東芝 | 音声増幅器のシヨツク音防止回路 |
US5263190A (en) * | 1989-04-06 | 1993-11-16 | Mazda Motor Corporation | Vehicular radio receiver having muting circuitry for suppressing noises caused by receiver data pulses |
DE4329638C2 (de) * | 1993-09-02 | 1996-10-24 | Telefunken Microelectron | Lauthöreinrichtung |
US5471527A (en) | 1993-12-02 | 1995-11-28 | Dsc Communications Corporation | Voice enhancement system and method |
US20040151329A1 (en) * | 2003-01-30 | 2004-08-05 | Rupinder Judge | Prevention of audio pop in a digital audio device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3622900A (en) * | 1969-09-29 | 1971-11-23 | Motorola Inc | Squelchable direct coupled transistor audio amplifier constructed in integrated circuit |
JPS5339170Y2 (ja) * | 1971-12-17 | 1978-09-21 | ||
US3965295A (en) * | 1974-07-17 | 1976-06-22 | Mcintosh Laboratory, Inc. | Protective system for stereo loudspeakers |
US3916321A (en) * | 1975-01-20 | 1975-10-28 | Gte Sylvania Inc | Noise suppression circuit |
-
1977
- 1977-01-28 JP JP831277A patent/JPS5394160A/ja active Pending
-
1978
- 1978-01-20 DE DE2802484A patent/DE2802484C3/de not_active Expired
- 1978-01-27 CA CA295,857A patent/CA1085741A/en not_active Expired
- 1978-01-30 US US05/873,763 patent/US4127743A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE2802484A1 (de) | 1978-08-17 |
DE2802484B2 (de) | 1979-11-29 |
CA1085741A (en) | 1980-09-16 |
DE2802484C3 (de) | 1980-08-07 |
US4127743A (en) | 1978-11-28 |
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