FR596076A - Improvements to sound transmission and reproduction devices - Google Patents

Improvements to sound transmission and reproduction devices

Info

Publication number
FR596076A
FR596076A FR596076DA FR596076A FR 596076 A FR596076 A FR 596076A FR 596076D A FR596076D A FR 596076DA FR 596076 A FR596076 A FR 596076A
Authority
FR
France
Prior art keywords
sound transmission
reproduction devices
reproduction
devices
sound
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
French (fr)
Inventor
Sidney George Brown
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 FR596076A publication Critical patent/FR596076A/en
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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
    • 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

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR596076D 1924-05-27 1925-02-04 Improvements to sound transmission and reproduction devices Expired FR596076A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1301124A GB238945A (en) 1924-05-27 1924-05-27 Improvements in and relating to devices for transmitting or reproducing sound

Publications (1)

Publication Number Publication Date
FR596076A true FR596076A (en) 1925-10-15

Family

ID=10015188

Family Applications (1)

Application Number Title Priority Date Filing Date
FR596076D Expired FR596076A (en) 1924-05-27 1925-02-04 Improvements to sound transmission and reproduction devices

Country Status (3)

Country Link
DE (1) DE466457C (en)
FR (1) FR596076A (en)
GB (1) GB238945A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1025452B (en) * 1952-09-18 1958-03-06 Standard Elektrik Ag Electro-acoustic converter with Helmholz resonator
DE947806C (en) * 1954-02-16 1956-08-23 Krone Kg Earpiece for telephones

Also Published As

Publication number Publication date
GB238945A (en) 1925-08-27
DE466457C (en) 1928-10-06

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