FR1124867A - Récepteur d'ondes sonores - Google Patents

Récepteur d'ondes sonores

Info

Publication number
FR1124867A
FR1124867A FR1124867DA FR1124867A FR 1124867 A FR1124867 A FR 1124867A FR 1124867D A FR1124867D A FR 1124867DA FR 1124867 A FR1124867 A FR 1124867A
Authority
FR
France
Prior art keywords
sound wave
wave receiver
receiver
sound
wave
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
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.)
DOWIDAT WERKE WILLI DOWIDAT
Original Assignee
DOWIDAT WERKE WILLI DOWIDAT
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 DOWIDAT WERKE WILLI DOWIDAT filed Critical DOWIDAT WERKE WILLI DOWIDAT
Application granted granted Critical
Publication of FR1124867A publication Critical patent/FR1124867A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
FR1124867D 1954-05-20 1955-05-20 Récepteur d'ondes sonores Expired FR1124867A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1124867X 1954-05-20

Publications (1)

Publication Number Publication Date
FR1124867A true FR1124867A (fr) 1956-10-19

Family

ID=7724981

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1124867D Expired FR1124867A (fr) 1954-05-20 1955-05-20 Récepteur d'ondes sonores

Country Status (1)

Country Link
FR (1) FR1124867A (fr)

Similar Documents

Publication Publication Date Title
CH329220A (de) Hochfrequenz-Übertragungsvorrichtung
FR1118560A (fr) Dispositif de transmission d'ondes électromagnétiques
FR1359616A (fr) Nouveau projecteur d'ondes acoustiques
CH337956A (de) Wanderfeldröhre
FR1143710A (fr) Détecteur d'ondes ultra-courtes
FR1110465A (fr) Fusée de signalisation
FR1209646A (fr) Transmission d'ondes électromagnétiques
CH334482A (de) Signalverstärker
FR1138306A (fr) Transducteur magnétique
FR1098754A (fr) Dispositif détecteur d'ondes électro-magnétiques
FR1117548A (fr) Sifflet
FR1124867A (fr) Récepteur d'ondes sonores
FR1133761A (fr) Transformateur électro-acoustique
FR1141359A (fr) Perfectionnements aux tubes à propagation d'ondes
FR1125354A (fr) Récepteur d'ondes modulées en fréquence
FR65127E (fr) Accouplement homocinétique
FR1080960A (fr) Amplificateur d'ondes
FR1117174A (fr) Système de transmission d'ondes radioélectriques
AT183462B (de) Elektroakustischer Wandler mit Reibungshemmung
FR1162892A (fr) Récepteur d'ondes porteuses
FR1242046A (fr) Radiateur d'ondes sonores
BE541974A (fr) Agencements de couplage
AT187158B (de) Schallwandler
FR1113145A (fr) Récepteur radio-électrique
FR1141361A (fr) Perfectionnements au collecteur d'ondes