ES452722A1 - Perfeccionamientos en los receptores radiofonicos montados sobre los vehiculos y denominados enronces autorradios. - Google Patents

Perfeccionamientos en los receptores radiofonicos montados sobre los vehiculos y denominados enronces autorradios.

Info

Publication number
ES452722A1
ES452722A1 ES452722A ES452722A ES452722A1 ES 452722 A1 ES452722 A1 ES 452722A1 ES 452722 A ES452722 A ES 452722A ES 452722 A ES452722 A ES 452722A ES 452722 A1 ES452722 A1 ES 452722A1
Authority
ES
Spain
Prior art keywords
motor vehicle
vehicle audio
audio apparatus
called
pass
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.)
Expired
Application number
ES452722A
Other languages
English (en)
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of ES452722A1 publication Critical patent/ES452722A1/es
Expired legal-status Critical Current

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

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Amplifiers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
ES452722A 1975-10-28 1976-10-26 Perfeccionamientos en los receptores radiofonicos montados sobre los vehiculos y denominados enronces autorradios. Expired ES452722A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7532839A FR2394420A1 (fr) 1975-10-28 1975-10-28 Perfectionnements aux recepteurs radiophoniques " auto-radio "

Publications (1)

Publication Number Publication Date
ES452722A1 true ES452722A1 (es) 1977-10-01

Family

ID=9161700

Family Applications (1)

Application Number Title Priority Date Filing Date
ES452722A Expired ES452722A1 (es) 1975-10-28 1976-10-26 Perfeccionamientos en los receptores radiofonicos montados sobre los vehiculos y denominados enronces autorradios.

Country Status (5)

Country Link
DE (1) DE2646232A1 (cg-RX-API-DMAC7.html)
ES (1) ES452722A1 (cg-RX-API-DMAC7.html)
FR (1) FR2394420A1 (cg-RX-API-DMAC7.html)
GB (1) GB1561895A (cg-RX-API-DMAC7.html)
IT (1) IT1071524B (cg-RX-API-DMAC7.html)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2731971B2 (de) * 1977-07-15 1980-05-14 Dieter 4300 Essen Eller Verfahren und Einrichtung zur Steuerung bzw. Regelung einer Nutzschallquelle
DE2752657A1 (de) * 1977-11-25 1979-06-07 Blaupunkt Werke Gmbh Stoergeraeuschabhaengige lautstaerkensteuerung
DE2903607C2 (de) * 1979-01-31 1985-05-09 Heymann, Andreas, 4300 Essen Regeleinrichtung zur fremdgeräuschpegelabhängigen Lautstärkeregelung von Funkempfangs- oder NF-Übertragungseinrichtungen
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 (ja) * 1981-06-29 1983-01-10 Hitachi Ltd 自動音量調節回路
GB2124048A (en) * 1982-05-13 1984-02-08 Carfield Volume control of electronic games
DE3816918C1 (cg-RX-API-DMAC7.html) * 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
IT1071524B (it) 1985-04-10
FR2394420A1 (fr) 1979-01-12
GB1561895A (en) 1980-03-05
DE2646232A1 (de) 1977-05-05
FR2394420B1 (cg-RX-API-DMAC7.html) 1980-01-04

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