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FR775717A - Système vibratoire pour appareils acoustiques - Google Patents

Système vibratoire pour appareils acoustiques

Info

Publication number
FR775717A
FR775717A FR775717DA FR775717A FR 775717 A FR775717 A FR 775717A FR 775717D A FR775717D A FR 775717DA FR 775717 A FR775717 A FR 775717A
Authority
FR
France
Prior art keywords
vibration system
hearing devices
hearing
devices
vibration
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens Corp
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 Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR775717A publication Critical patent/FR775717A/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
FR775717D 1934-04-05 1934-07-11 Système vibratoire pour appareils acoustiques Expired FR775717A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2110908X 1934-04-05

Publications (1)

Publication Number Publication Date
FR775717A true FR775717A (fr) 1935-01-08

Family

ID=7985420

Family Applications (1)

Application Number Title Priority Date Filing Date
FR775717D Expired FR775717A (fr) 1934-04-05 1934-07-11 Système vibratoire pour appareils acoustiques

Country Status (2)

Country Link
US (1) US2110908A (fr)
FR (1) FR775717A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3684051A (en) * 1970-10-08 1972-08-15 Herbert J Hopkins Acoustic duct speaker system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2672525A (en) * 1950-06-16 1954-03-16 Automatic Elect Lab Sound translating device with resonating and damping chamber
US2697761A (en) * 1952-03-18 1954-12-21 Jr Albert G Bodine Acoustic filter for telephone receivers
US3084229A (en) * 1960-03-11 1963-04-02 Ampex Electrostatic earphone
US4799264A (en) * 1987-09-28 1989-01-17 Plummer Jan P Speaker system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3684051A (en) * 1970-10-08 1972-08-15 Herbert J Hopkins Acoustic duct speaker system

Also Published As

Publication number Publication date
US2110908A (en) 1938-03-15

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