CH589973A5 - - Google Patents
Info
- Publication number
- CH589973A5 CH589973A5 CH1447175A CH1447175A CH589973A5 CH 589973 A5 CH589973 A5 CH 589973A5 CH 1447175 A CH1447175 A CH 1447175A CH 1447175 A CH1447175 A CH 1447175A CH 589973 A5 CH589973 A5 CH 589973A5
- Authority
- CH
- Switzerland
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means
- G03B31/02—Associated working of cameras or projectors with sound-recording or sound-reproducing means in which sound track is on a moving-picture film
-
- 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
- H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
- H03G3/3015—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable using diodes or transistors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Control Of Amplification And Gain Control (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1447175A CH589973A5 (US06534493-20030318-C00302.png) | 1975-11-06 | 1975-11-06 | |
| AT98476A AT350391B (de) | 1975-11-06 | 1976-02-12 | Schaltungsanordnung fuer ein elektroakustisches geraet |
| US05/739,011 US4079335A (en) | 1975-11-06 | 1976-11-04 | Adaptive level control for electro-acousto device |
| DE19762650674 DE2650674A1 (de) | 1975-11-06 | 1976-11-05 | Schaltungsanordnung fuer ein elektroakustisches geraet |
| JP51133109A JPS5278347A (en) | 1975-11-06 | 1976-11-05 | Circuit for electroacoustic device |
| IT09649/76A IT1078582B (it) | 1975-11-06 | 1976-11-05 | Disposizione di connessione per un apparecchio elettroacustico quale un apparecchio per pellicola sonora un registratore magnetico a nastro ed altro |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1447175A CH589973A5 (US06534493-20030318-C00302.png) | 1975-11-06 | 1975-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH589973A5 true CH589973A5 (US06534493-20030318-C00302.png) | 1977-07-29 |
Family
ID=4401122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1447175A CH589973A5 (US06534493-20030318-C00302.png) | 1975-11-06 | 1975-11-06 |
Country Status (6)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2522451B1 (fr) * | 1982-03-01 | 1988-10-14 | Audibel | Perfectionnement au circuit de controle automatique de gain d'un systeme d'amplification a transistors et appareil de correction auditive equipe d'un tel circuit |
| US4891605A (en) * | 1986-08-13 | 1990-01-02 | Tirkel Anatol Z | Adaptive gain control amplifier |
| JP4057212B2 (ja) * | 2000-02-15 | 2008-03-05 | 三菱電機株式会社 | マイクロフォン装置 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52661B2 (US06534493-20030318-C00302.png) * | 1972-01-11 | 1977-01-10 | ||
| JPS5715486B2 (US06534493-20030318-C00302.png) * | 1974-04-30 | 1982-03-31 |
-
1975
- 1975-11-06 CH CH1447175A patent/CH589973A5/xx not_active IP Right Cessation
-
1976
- 1976-02-12 AT AT98476A patent/AT350391B/de not_active IP Right Cessation
- 1976-11-04 US US05/739,011 patent/US4079335A/en not_active Expired - Lifetime
- 1976-11-05 DE DE19762650674 patent/DE2650674A1/de not_active Withdrawn
- 1976-11-05 JP JP51133109A patent/JPS5278347A/ja active Pending
- 1976-11-05 IT IT09649/76A patent/IT1078582B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| DE2650674A1 (de) | 1977-05-12 |
| US4079335A (en) | 1978-03-14 |
| AT350391B (de) | 1979-05-25 |
| JPS5278347A (en) | 1977-07-01 |
| IT1078582B (it) | 1985-05-08 |
| ATA98476A (de) | 1978-10-15 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |