IT1097222B - PROCEDURE AND DEVICE FOR CHECKING RESPECTIVELY THE ADJUSTMENT OF A SOURCE OF USEFUL SOUNDS - Google Patents

PROCEDURE AND DEVICE FOR CHECKING RESPECTIVELY THE ADJUSTMENT OF A SOURCE OF USEFUL SOUNDS

Info

Publication number
IT1097222B
IT1097222B IT25641/78A IT2564178A IT1097222B IT 1097222 B IT1097222 B IT 1097222B IT 25641/78 A IT25641/78 A IT 25641/78A IT 2564178 A IT2564178 A IT 2564178A IT 1097222 B IT1097222 B IT 1097222B
Authority
IT
Italy
Prior art keywords
procedure
adjustment
source
checking respectively
useful sounds
Prior art date
Application number
IT25641/78A
Other languages
Italian (it)
Other versions
IT7825641A0 (en
Original Assignee
Eller Dieter
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eller Dieter filed Critical Eller Dieter
Publication of IT7825641A0 publication Critical patent/IT7825641A0/en
Application granted granted Critical
Publication of IT1097222B publication Critical patent/IT1097222B/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • 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
IT25641/78A 1977-07-15 1978-07-13 PROCEDURE AND DEVICE FOR CHECKING RESPECTIVELY THE ADJUSTMENT OF A SOURCE OF USEFUL SOUNDS IT1097222B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2731971A DE2731971B2 (en) 1977-07-15 1977-07-15 Method and device for controlling or regulating a useful sound source

Publications (2)

Publication Number Publication Date
IT7825641A0 IT7825641A0 (en) 1978-07-13
IT1097222B true IT1097222B (en) 1985-08-26

Family

ID=6013982

Family Applications (1)

Application Number Title Priority Date Filing Date
IT25641/78A IT1097222B (en) 1977-07-15 1978-07-13 PROCEDURE AND DEVICE FOR CHECKING RESPECTIVELY THE ADJUSTMENT OF A SOURCE OF USEFUL SOUNDS

Country Status (5)

Country Link
JP (1) JPS5430817A (en)
DE (1) DE2731971B2 (en)
FR (1) FR2397750A1 (en)
GB (1) GB2001220A (en)
IT (1) IT1097222B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55147015A (en) * 1979-05-07 1980-11-15 Hitachi Ltd Audio unit mounting on car
DE2931604C2 (en) * 1979-08-03 1982-04-29 Siemens AG, 1000 Berlin und 8000 München Noise-compensated microphone circuit
EP0156826B1 (en) * 1983-09-14 1988-11-09 Peiker, Andreas Telephone transmission installation
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 (en) * 1984-10-22 1986-05-16 Philips Nv NOISE-DEPENDENT AND VOICE-INDEPENDENT VOLUME CONTROL.
JPH04113399A (en) * 1990-09-03 1992-04-14 Nec Ic Microcomput Syst Ltd Voice amplification device
GB2257317A (en) * 1991-06-26 1993-01-06 Damian Rupert Lindley Automatic volume control for car stereo
FR2765610B1 (en) * 1997-07-04 2003-08-15 Kiekert Ag MOTOR VEHICLE WITH A CLOSING SYSTEM TO BE OPENED OR LOCKED BY REMOTE CONTROL
US11295718B2 (en) 2018-11-02 2022-04-05 Bose Corporation Ambient volume control in open audio device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH244200A (en) * 1945-08-23 1946-08-31 Siemens Ag Albis Electroacoustic transmission system for noisy playback locations.
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 (en) * 1972-12-18 1974-08-13
JPS5093761A (en) * 1973-12-20 1975-07-26
FR2394420A1 (en) * 1975-10-28 1979-01-12 Orlik Henri IMPROVEMENTS TO "AUTO-RADIO" RADIO RECEIVERS
JPS5267545A (en) * 1975-12-03 1977-06-04 Nippon Telegr & Teleph Corp <Ntt> Automatic volume adjusting circuit

Also Published As

Publication number Publication date
FR2397750A1 (en) 1979-02-09
GB2001220A (en) 1979-01-24
JPS5430817A (en) 1979-03-07
DE2731971A1 (en) 1979-01-18
IT7825641A0 (en) 1978-07-13
DE2731971B2 (en) 1980-05-14

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