FR731491A - Perfectionnements aux appareils de reproduction des sons - Google Patents

Perfectionnements aux appareils de reproduction des sons

Info

Publication number
FR731491A
FR731491A FR731491DA FR731491A FR 731491 A FR731491 A FR 731491A FR 731491D A FR731491D A FR 731491DA FR 731491 A FR731491 A FR 731491A
Authority
FR
France
Prior art keywords
sound reproduction
reproduction devices
devices
sound
reproduction
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR731491A publication Critical patent/FR731491A/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
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/16—Mounting or connecting stylus to transducer with or without damping means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Casings For Electric Apparatus (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Vibration Prevention Devices (AREA)
FR731491D 1931-02-17 1932-02-17 Perfectionnements aux appareils de reproduction des sons Expired FR731491A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5020/31A GB373158A (en) 1931-02-17 1931-02-17 Improvements relating to apparatus for the electrical reproduction of sound
GB24278/31A GB379100A (en) 1931-02-17 1931-08-28 Improvements relating to apparatus for the electrical reproduction of sound

Publications (1)

Publication Number Publication Date
FR731491A true FR731491A (fr) 1932-09-03

Family

ID=26239533

Family Applications (1)

Application Number Title Priority Date Filing Date
FR731491D Expired FR731491A (fr) 1931-02-17 1932-02-17 Perfectionnements aux appareils de reproduction des sons

Country Status (5)

Country Link
US (1) US1914191A (fr)
BE (1) BE386486A (fr)
DE (1) DE617320C (fr)
FR (1) FR731491A (fr)
GB (2) GB373158A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2581511A (en) * 1947-12-31 1952-01-08 Donald J Baker Magnetic phonograph pickup

Also Published As

Publication number Publication date
DE617320C (de) 1935-08-16
GB373158A (en) 1932-05-17
US1914191A (en) 1933-06-13
BE386486A (fr) 1932-03-31
GB379100A (en) 1932-08-25

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