IT1071524B - SOUND REPRODUCER FOR VEHICLES PARTICULARLY CAR RADIO - Google Patents

SOUND REPRODUCER FOR VEHICLES PARTICULARLY CAR RADIO

Info

Publication number
IT1071524B
IT1071524B IT6949076A IT6949076A IT1071524B IT 1071524 B IT1071524 B IT 1071524B IT 6949076 A IT6949076 A IT 6949076A IT 6949076 A IT6949076 A IT 6949076A IT 1071524 B IT1071524 B IT 1071524B
Authority
IT
Italy
Prior art keywords
car radio
sound reproducer
particularly car
vehicles particularly
vehicles
Prior art date
Application number
IT6949076A
Other languages
Italian (it)
Original Assignee
Orlik Henri
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 Orlik Henri filed Critical Orlik Henri
Application granted granted Critical
Publication of IT1071524B publication Critical patent/IT1071524B/en

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
IT6949076A 1975-10-28 1976-10-15 SOUND REPRODUCER FOR VEHICLES PARTICULARLY CAR RADIO IT1071524B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7532839A FR2394420A1 (en) 1975-10-28 1975-10-28 IMPROVEMENTS TO "AUTO-RADIO" RADIO RECEIVERS

Publications (1)

Publication Number Publication Date
IT1071524B true IT1071524B (en) 1985-04-10

Family

ID=9161700

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6949076A IT1071524B (en) 1975-10-28 1976-10-15 SOUND REPRODUCER FOR VEHICLES PARTICULARLY CAR RADIO

Country Status (5)

Country Link
DE (1) DE2646232A1 (en)
ES (1) ES452722A1 (en)
FR (1) FR2394420A1 (en)
GB (1) GB1561895A (en)
IT (1) IT1071524B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2731971B2 (en) * 1977-07-15 1980-05-14 Dieter 4300 Essen Eller Method and device for controlling or regulating a useful sound source
DE2752657A1 (en) * 1977-11-25 1979-06-07 Blaupunkt Werke Gmbh Automatic volume control for car radios - selects narrow frequency band from useful signal and uses its level to control switch connecting microphone to store
DE2903607C2 (en) * 1979-01-31 1985-05-09 Heymann, Andreas, 4300 Essen Control device for volume control of radio reception or LF transmission devices depending on the level of background noise
JPS55147015A (en) * 1979-05-07 1980-11-15 Hitachi Ltd Audio unit mounting on car
US4476571A (en) * 1981-06-15 1984-10-09 Pioneer Electronic Corporation Automatic sound volume control device
JPS583305A (en) * 1981-06-29 1983-01-10 Hitachi Ltd Automatic sound volume adjusting circuit
GB2124048A (en) * 1982-05-13 1984-02-08 Carfield Volume control of electronic games
DE3816918C1 (en) * 1988-05-18 1989-07-27 Adam Opel Ag, 6090 Ruesselsheim, De
GB2257317A (en) * 1991-06-26 1993-01-06 Damian Rupert Lindley Automatic volume control for car stereo

Also Published As

Publication number Publication date
ES452722A1 (en) 1977-10-01
DE2646232A1 (en) 1977-05-05
FR2394420B1 (en) 1980-01-04
GB1561895A (en) 1980-03-05
FR2394420A1 (en) 1979-01-12

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