FR1575802A - - Google Patents

Info

Publication number
FR1575802A
FR1575802A FR1575802DA FR1575802A FR 1575802 A FR1575802 A FR 1575802A FR 1575802D A FR1575802D A FR 1575802DA FR 1575802 A FR1575802 A FR 1575802A
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.)
Expired
Application number
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 filed Critical
Application granted granted Critical
Publication of FR1575802A publication Critical patent/FR1575802A/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR1575802D 1967-05-16 1968-05-10 Expired FR1575802A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63887867A 1967-05-16 1967-05-16

Publications (1)

Publication Number Publication Date
FR1575802A true FR1575802A (fr) 1969-07-25

Family

ID=24561824

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1575802D Expired FR1575802A (fr) 1967-05-16 1968-05-10

Country Status (8)

Country Link
JP (1) JPS4813441B1 (fr)
BE (1) BE715072A (fr)
CH (1) CH494514A (fr)
DE (1) DE1762265A1 (fr)
FR (1) FR1575802A (fr)
GB (1) GB1234273A (fr)
LU (1) LU56089A1 (fr)
NL (1) NL164721C (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001245390A (ja) * 2000-02-29 2001-09-07 Star Micronics Co Ltd 電気音響変換器
CN104754439A (zh) * 2015-04-21 2015-07-01 苏州亿欧得电子有限公司 一种低频性能良好的受话器
WO2017212698A1 (fr) * 2016-06-09 2017-12-14 アルプス電気株式会社 Dispositif de génération de son

Also Published As

Publication number Publication date
JPS4813441B1 (fr) 1973-04-27
GB1234273A (fr) 1971-06-03
LU56089A1 (fr) 1969-02-10
BE715072A (fr) 1968-11-13
DE1762265A1 (de) 1970-04-16
DE1762265B2 (fr) 1971-01-28
NL6806874A (fr) 1968-11-18
NL164721C (nl) 1981-01-15
CH494514A (fr) 1970-07-31

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Legal Events

Date Code Title Description
ST Notification of lapse