FR80583E - Improvements to electro-acoustic transducers - Google Patents

Improvements to electro-acoustic transducers

Info

Publication number
FR80583E
FR80583E FR877863A FR877863A FR80583E FR 80583 E FR80583 E FR 80583E FR 877863 A FR877863 A FR 877863A FR 877863 A FR877863 A FR 877863A FR 80583 E FR80583 E FR 80583E
Authority
FR
France
Prior art keywords
electro
acoustic transducers
transducers
acoustic
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
FR877863A
Other languages
French (fr)
Inventor
James Samuel Paterson Roberton
Reginald Collins
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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
Priority claimed from GB515660A external-priority patent/GB942658A/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Priority to FR877863A priority Critical patent/FR80583E/en
Application granted granted Critical
Publication of FR80583E publication Critical patent/FR80583E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • 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)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
FR877863A 1960-02-12 1961-11-03 Improvements to electro-acoustic transducers Expired FR80583E (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR877863A FR80583E (en) 1960-02-12 1961-11-03 Improvements to electro-acoustic transducers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB515660A GB942658A (en) 1960-02-12 1960-02-12 Improvements in or relating to electro-acoustic transducers
FR877863A FR80583E (en) 1960-02-12 1961-11-03 Improvements to electro-acoustic transducers

Publications (1)

Publication Number Publication Date
FR80583E true FR80583E (en) 1963-05-17

Family

ID=26192953

Family Applications (1)

Application Number Title Priority Date Filing Date
FR877863A Expired FR80583E (en) 1960-02-12 1961-11-03 Improvements to electro-acoustic transducers

Country Status (1)

Country Link
FR (1) FR80583E (en)

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