FR799075A - Improvements to t devices. s. f. - Google Patents

Improvements to t devices. s. f.

Info

Publication number
FR799075A
FR799075A FR799075DA FR799075A FR 799075 A FR799075 A FR 799075A FR 799075D A FR799075D A FR 799075DA FR 799075 A FR799075 A FR 799075A
Authority
FR
France
Prior art keywords
devices
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
Jacques-Andre Meunier Colin
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.)
ODEKA
Original Assignee
ODEKA
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 ODEKA filed Critical ODEKA
Application granted granted Critical
Publication of FR799075A publication Critical patent/FR799075A/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR799075D 1935-12-12 1935-12-12 Improvements to t devices. s. f. Expired FR799075A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR799075T 1935-12-12

Publications (1)

Publication Number Publication Date
FR799075A true FR799075A (en) 1936-06-05

Family

ID=9236547

Family Applications (1)

Application Number Title Priority Date Filing Date
FR799075D Expired FR799075A (en) 1935-12-12 1935-12-12 Improvements to t devices. s. f.

Country Status (1)

Country Link
FR (1) FR799075A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2630526A (en) * 1948-11-04 1953-03-03 Victor I Zelov Housing for radio receivers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2630526A (en) * 1948-11-04 1953-03-03 Victor I Zelov Housing for radio receivers

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