FR823065A - Perfectionnements aux dispositifs de traduction du son - Google Patents

Perfectionnements aux dispositifs de traduction du son

Info

Publication number
FR823065A
FR823065A FR823065DA FR823065A FR 823065 A FR823065 A FR 823065A FR 823065D A FR823065D A FR 823065DA FR 823065 A FR823065 A FR 823065A
Authority
FR
France
Prior art keywords
translation devices
sound translation
sound
devices
translation
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
English (en)
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Application granted granted Critical
Publication of FR823065A publication Critical patent/FR823065A/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; ELECTRIC HEARING AIDS; 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
    • H04R1/342—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 microphones

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
FR823065D 1936-06-18 1937-06-15 Perfectionnements aux dispositifs de traduction du son Expired FR823065A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US479328XA 1936-06-18 1936-06-18

Publications (1)

Publication Number Publication Date
FR823065A true FR823065A (fr) 1938-01-13

Family

ID=21951810

Family Applications (1)

Application Number Title Priority Date Filing Date
FR823065D Expired FR823065A (fr) 1936-06-18 1937-06-15 Perfectionnements aux dispositifs de traduction du son

Country Status (2)

Country Link
FR (1) FR823065A (fr)
GB (1) GB479328A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4421957A (en) * 1981-06-15 1983-12-20 Bell Telephone Laboratories, Incorporated End-fire microphone and loudspeaker structures

Also Published As

Publication number Publication date
GB479328A (en) 1938-02-03

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