FR2262894A1 - - Google Patents

Info

Publication number
FR2262894A1
FR2262894A1 FR7506569A FR7506569A FR2262894A1 FR 2262894 A1 FR2262894 A1 FR 2262894A1 FR 7506569 A FR7506569 A FR 7506569A FR 7506569 A FR7506569 A FR 7506569A FR 2262894 A1 FR2262894 A1 FR 2262894A1
Authority
FR
France
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.)
Withdrawn
Application number
FR7506569A
Other languages
French (fr)
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.)
PEIKER HEINRICH DT
Original Assignee
PEIKER HEINRICH DT
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
Priority claimed from DE19742409830 external-priority patent/DE2409830C3/de
Application filed by PEIKER HEINRICH DT filed Critical PEIKER HEINRICH DT
Publication of FR2262894A1 publication Critical patent/FR2262894A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22Arrangements 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)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
FR7506569A 1974-03-01 1975-03-03 Withdrawn FR2262894A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742409830 DE2409830C3 (de) 1974-03-01 Einrichtung zur Schallaufnahme und -wiedergabe

Publications (1)

Publication Number Publication Date
FR2262894A1 true FR2262894A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-09-26

Family

ID=5908823

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7506569A Withdrawn FR2262894A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-03-01 1975-03-03

Country Status (2)

Country Link
FR (1) FR2262894A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1468122A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108184197B (zh) * 2018-03-23 2023-08-22 苏州登堡电子科技有限公司 振壁传声装置

Also Published As

Publication number Publication date
GB1468122A (en) 1977-03-23
DE2409830A1 (de) 1975-09-04
DE2409830B2 (de) 1976-10-28

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Legal Events

Date Code Title Description
ST Notification of lapse