GB2001220A - Controlling and/or regulating level of useful sound - Google Patents
Controlling and/or regulating level of useful soundInfo
- Publication number
- GB2001220A GB2001220A GB7829651A GB7829651A GB2001220A GB 2001220 A GB2001220 A GB 2001220A GB 7829651 A GB7829651 A GB 7829651A GB 7829651 A GB7829651 A GB 7829651A GB 2001220 A GB2001220 A GB 2001220A
- Authority
- GB
- United Kingdom
- Prior art keywords
- useful sound
- level
- useful
- controlling
- measured
- 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.)
- Withdrawn
Links
- 230000001276 controlling effect Effects 0.000 title abstract 2
- 230000001105 regulatory effect Effects 0.000 title abstract 2
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
- H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
Landscapes
- Control Of Amplification And Gain Control (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2731971A DE2731971B2 (de) | 1977-07-15 | 1977-07-15 | Verfahren und Einrichtung zur Steuerung bzw. Regelung einer Nutzschallquelle |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2001220A true GB2001220A (en) | 1979-01-24 |
Family
ID=6013982
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7829651A Withdrawn GB2001220A (en) | 1977-07-15 | 1978-07-12 | Controlling and/or regulating level of useful sound |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5430817A (de) |
DE (1) | DE2731971B2 (de) |
FR (1) | FR2397750A1 (de) |
GB (1) | GB2001220A (de) |
IT (1) | IT1097222B (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1985001411A1 (en) * | 1983-09-14 | 1985-03-28 | Keller, René | Telephone transmission installation |
WO1986000133A1 (en) * | 1984-06-08 | 1986-01-03 | Plessey Australia Pty. Limited | Adaptive speech detector system |
EP0179530A1 (de) * | 1984-10-22 | 1986-04-30 | Koninklijke Philips Electronics N.V. | Geräuschabhängige Lautstärkeregelung mit reduzierter Empfindlichkeit für Sprachsignale |
GB2257317A (en) * | 1991-06-26 | 1993-01-06 | Damian Rupert Lindley | Automatic volume control for car stereo |
FR2765610A1 (fr) * | 1997-07-04 | 1999-01-08 | Kiekert Ag | Vehicule automobile avec un systeme de fermeture a ouvrir ou a verrouiller au moyen d'une telecommande |
WO2020092989A1 (en) * | 2018-11-02 | 2020-05-07 | Bose Corporation | Volume control in open audio device |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55147015A (en) * | 1979-05-07 | 1980-11-15 | Hitachi Ltd | Audio unit mounting on car |
DE2931604C2 (de) * | 1979-08-03 | 1982-04-29 | Siemens AG, 1000 Berlin und 8000 München | Störgeräuschkompensierte Mikrofonschaltung |
US4582414A (en) * | 1984-05-01 | 1986-04-15 | Eastman Kodak Company | Magnetic brush development apparatus |
JPH04113399A (ja) * | 1990-09-03 | 1992-04-14 | Nec Ic Microcomput Syst Ltd | 音声増幅装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH244200A (de) * | 1945-08-23 | 1946-08-31 | Siemens Ag Albis | Elektroakustische Übertragungsanlage für lärmgestörte Wiedergabeorte. |
US2501327A (en) * | 1946-12-06 | 1950-03-21 | Rca Corp | Noise operated automatic volume control |
GB667694A (en) * | 1949-07-28 | 1952-03-05 | Gen Electric Co Ltd | Improvements in or relating to electrical sound reproducing apparatus |
US3410958A (en) * | 1965-03-25 | 1968-11-12 | Executone Inf Sys Inc | Noise controlled sound reproducing system |
JPS4984313A (de) * | 1972-12-18 | 1974-08-13 | ||
JPS5093761A (de) * | 1973-12-20 | 1975-07-26 | ||
FR2394420A1 (fr) * | 1975-10-28 | 1979-01-12 | Orlik Henri | Perfectionnements aux recepteurs radiophoniques " auto-radio " |
JPS5267545A (en) * | 1975-12-03 | 1977-06-04 | Nippon Telegr & Teleph Corp <Ntt> | Automatic volume adjusting circuit |
-
1977
- 1977-07-15 DE DE2731971A patent/DE2731971B2/de not_active Withdrawn
-
1978
- 1978-07-12 GB GB7829651A patent/GB2001220A/en not_active Withdrawn
- 1978-07-13 IT IT25641/78A patent/IT1097222B/it active
- 1978-07-13 FR FR7821019A patent/FR2397750A1/fr not_active Withdrawn
- 1978-07-14 JP JP8526378A patent/JPS5430817A/ja active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1985001411A1 (en) * | 1983-09-14 | 1985-03-28 | Keller, René | Telephone transmission installation |
WO1986000133A1 (en) * | 1984-06-08 | 1986-01-03 | Plessey Australia Pty. Limited | Adaptive speech detector system |
EP0179530A1 (de) * | 1984-10-22 | 1986-04-30 | Koninklijke Philips Electronics N.V. | Geräuschabhängige Lautstärkeregelung mit reduzierter Empfindlichkeit für Sprachsignale |
GB2257317A (en) * | 1991-06-26 | 1993-01-06 | Damian Rupert Lindley | Automatic volume control for car stereo |
FR2765610A1 (fr) * | 1997-07-04 | 1999-01-08 | Kiekert Ag | Vehicule automobile avec un systeme de fermeture a ouvrir ou a verrouiller au moyen d'une telecommande |
WO2020092989A1 (en) * | 2018-11-02 | 2020-05-07 | Bose Corporation | Volume control in open audio device |
CN113170250A (zh) * | 2018-11-02 | 2021-07-23 | 伯斯有限公司 | 开放式音频设备中的音量控制 |
US11295718B2 (en) | 2018-11-02 | 2022-04-05 | Bose Corporation | Ambient volume control in open audio device |
US11955107B2 (en) | 2018-11-02 | 2024-04-09 | Bose Corporation | Ambient volume control in open audio device |
Also Published As
Publication number | Publication date |
---|---|
IT1097222B (it) | 1985-08-26 |
FR2397750A1 (fr) | 1979-02-09 |
IT7825641A0 (it) | 1978-07-13 |
JPS5430817A (en) | 1979-03-07 |
DE2731971A1 (de) | 1979-01-18 |
DE2731971B2 (de) | 1980-05-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |