FR1073068A - Microphone - Google Patents

Microphone

Info

Publication number
FR1073068A
FR1073068A FR1073068DA FR1073068A FR 1073068 A FR1073068 A FR 1073068A FR 1073068D A FR1073068D A FR 1073068DA FR 1073068 A FR1073068 A FR 1073068A
Authority
FR
France
Prior art keywords
microphone
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)
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR1073068A publication Critical patent/FR1073068A/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
    • 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 
    • H04R1/222—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  for microphones
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/999—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener with retainer, e.g. tether
FR1073068D 1952-03-20 1953-03-18 Microphone Expired FR1073068A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL310658X 1952-03-20

Publications (1)

Publication Number Publication Date
FR1073068A true FR1073068A (fr) 1954-09-20

Family

ID=19783626

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1073068D Expired FR1073068A (fr) 1952-03-20 1953-03-18 Microphone

Country Status (6)

Country Link
US (1) US2720934A (de)
BE (1) BE518558A (de)
CH (1) CH310658A (de)
DE (1) DE916955C (de)
FR (1) FR1073068A (de)
GB (1) GB724566A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1205149B (de) * 1959-09-07 1965-11-18 Sony Corp Roehrenmikrophon
US3517390A (en) * 1968-02-29 1970-06-23 Layne Whitehead High power acoustic radiator
US3895688A (en) * 1972-07-31 1975-07-22 Hyroacoustics Inc Acoustic transmitter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR541251A (fr) * 1920-04-03 1922-07-25 Signal Gmbh Dispositif pour la suppression des troubles dans la réception acoustique
US2363686A (en) * 1943-10-29 1944-11-28 Harry F. Olson Acoustic Stethoscope

Also Published As

Publication number Publication date
BE518558A (de)
CH310658A (de) 1955-10-31
US2720934A (en) 1955-10-18
GB724566A (en) 1955-02-23
DE916955C (de) 1954-08-23

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