FR2444591A2 - Perfectionnements aux recepteurs radiophoniques " auto-radio " - Google Patents

Perfectionnements aux recepteurs radiophoniques " auto-radio "

Info

Publication number
FR2444591A2
FR2444591A2 FR7836081A FR7836081A FR2444591A2 FR 2444591 A2 FR2444591 A2 FR 2444591A2 FR 7836081 A FR7836081 A FR 7836081A FR 7836081 A FR7836081 A FR 7836081A FR 2444591 A2 FR2444591 A2 FR 2444591A2
Authority
FR
France
Prior art keywords
volume
speaker
insertable
loudspeaker
dependence
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.)
Pending
Application number
FR7836081A
Other languages
English (en)
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
Priority to FR7836081A priority Critical patent/FR2444591A2/fr
Publication of FR2444591A2 publication Critical patent/FR2444591A2/fr
Pending 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

  • Circuit For Audible Band Transducer (AREA)

Abstract

Ces perfectionnements visent des variantes d'exécution avantageuses de l'invention intitiale, caractérisés notamment en ce que, pour éviter d'intervenir sur le récepteur, par exemple dit << auto-radio >>, équipant déjà le véhicule et faciliter ainsi la commercialisation, on transpose originalement à l'extérieur du récepteur, l'utilisation essentielle du potentiomètre à double action inversée, en rétablissant cette fonction de correction mutuelle des niveaux sonores, sous forme << électronique >>, pour retrouver ainsi et automatiquement, la correction dynamique la plus importante, lorsque le niveau d'écoute est faible et au contraire l'atténuer, si le niveau d'écoute est important, ce qui facilite en outre l'application nouvelle, aux téléphones de véhicules et spécialement à ceux du type dit << mains libres >>.
FR7836081A 1978-12-22 1978-12-22 Perfectionnements aux recepteurs radiophoniques " auto-radio " Pending FR2444591A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7836081A FR2444591A2 (fr) 1978-12-22 1978-12-22 Perfectionnements aux recepteurs radiophoniques " auto-radio "

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7836081A FR2444591A2 (fr) 1978-12-22 1978-12-22 Perfectionnements aux recepteurs radiophoniques " auto-radio "

Publications (1)

Publication Number Publication Date
FR2444591A2 true FR2444591A2 (fr) 1980-07-18

Family

ID=9216435

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7836081A Pending FR2444591A2 (fr) 1978-12-22 1978-12-22 Perfectionnements aux recepteurs radiophoniques " auto-radio "

Country Status (1)

Country Link
FR (1) FR2444591A2 (fr)

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