IT7825641A0 - Procedimento e dispositivo per il controllo rispettivamente la regolazione di una sorgente di suoni utili. - Google Patents
Procedimento e dispositivo per il controllo rispettivamente la regolazione di una sorgente di suoni utili.Info
- Publication number
- IT7825641A0 IT7825641A0 IT7825641A IT2564178A IT7825641A0 IT 7825641 A0 IT7825641 A0 IT 7825641A0 IT 7825641 A IT7825641 A IT 7825641A IT 2564178 A IT2564178 A IT 2564178A IT 7825641 A0 IT7825641 A0 IT 7825641A0
- Authority
- IT
- Italy
- Prior art keywords
- regulation
- procedure
- source
- control respectively
- useful sounds
- 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
- H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
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 (2)
Publication Number | Publication Date |
---|---|
IT7825641A0 true IT7825641A0 (it) | 1978-07-13 |
IT1097222B IT1097222B (it) | 1985-08-26 |
Family
ID=6013982
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT25641/78A IT1097222B (it) | 1977-07-15 | 1978-07-13 | Procedimento e dispositivo per il controlllo rispettivamente la regolazione di una sorgente di suoni utili |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5430817A (it) |
DE (1) | DE2731971B2 (it) |
FR (1) | FR2397750A1 (it) |
GB (1) | GB2001220A (it) |
IT (1) | IT1097222B (it) |
Families Citing this family (10)
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 |
EP0156826B1 (de) * | 1983-09-14 | 1988-11-09 | Peiker, Andreas | Einrichtung zur sprachübertragung |
US4582414A (en) * | 1984-05-01 | 1986-04-15 | Eastman Kodak Company | Magnetic brush development apparatus |
WO1986000133A1 (en) * | 1984-06-08 | 1986-01-03 | Plessey Australia Pty. Limited | Adaptive speech detector system |
NL8403200A (nl) * | 1984-10-22 | 1986-05-16 | Philips Nv | Lawaaiafhankelijke- en spraakonafhankelijke volumeregeling. |
JPH04113399A (ja) * | 1990-09-03 | 1992-04-14 | Nec Ic Microcomput Syst Ltd | 音声増幅装置 |
GB2257317A (en) * | 1991-06-26 | 1993-01-06 | Damian Rupert Lindley | Automatic volume control for car stereo |
FR2765610B1 (fr) * | 1997-07-04 | 2003-08-15 | Kiekert Ag | Vehicule automobile avec un systeme de fermeture a ouvrir ou a verrouiller au moyen d'une telecommande |
US11295718B2 (en) * | 2018-11-02 | 2022-04-05 | Bose Corporation | Ambient volume control in open audio device |
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 (it) * | 1972-12-18 | 1974-08-13 | ||
JPS5093761A (it) * | 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
Also Published As
Publication number | Publication date |
---|---|
IT1097222B (it) | 1985-08-26 |
GB2001220A (en) | 1979-01-24 |
FR2397750A1 (fr) | 1979-02-09 |
JPS5430817A (en) | 1979-03-07 |
DE2731971A1 (de) | 1979-01-18 |
DE2731971B2 (de) | 1980-05-14 |
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