JPS433239B1 - - Google Patents

Info

Publication number
JPS433239B1
JPS433239B1 JP2876960A JP2876960A JPS433239B1 JP S433239 B1 JPS433239 B1 JP S433239B1 JP 2876960 A JP2876960 A JP 2876960A JP 2876960 A JP2876960 A JP 2876960A JP S433239 B1 JPS433239 B1 JP S433239B1
Authority
JP
Japan
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.)
Pending
Application number
JP2876960A
Other languages
Japanese (ja)
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
Publication of JPS433239B1 publication Critical patent/JPS433239B1/ja
Pending 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
    • H04R1/38—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 in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
JP2876960A 1959-06-24 1960-06-24 Pending JPS433239B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL240557 1959-06-24

Publications (1)

Publication Number Publication Date
JPS433239B1 true JPS433239B1 (fr) 1967-02-06

Family

ID=19751793

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2876960A Pending JPS433239B1 (fr) 1959-06-24 1960-06-24

Country Status (6)

Country Link
US (1) US3141070A (fr)
JP (1) JPS433239B1 (fr)
CH (1) CH385289A (fr)
DE (1) DE1282717B (fr)
FR (1) FR1260478A (fr)
GB (1) GB956448A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3257516A (en) * 1962-06-25 1966-06-21 Knowles Electronies Inc Combined instrument and transducer motor cavities for acoustic instrument
NL301514A (fr) * 1962-12-13
NL6604014A (fr) * 1966-03-26 1967-09-27
US3674108A (en) * 1970-10-29 1972-07-04 David L Beatty Outdoor speaker enclosure
US3870820A (en) * 1972-06-30 1975-03-11 Victor Company Of Japan Microphone with different directional modes
US9116178B1 (en) * 2012-10-11 2015-08-25 Reliance Controls Corporation Circuit tester with variable volume audible voltage indication
USD743382S1 (en) * 2013-09-20 2015-11-17 Panasonic Intellectual Property Management Co., Ltd. Microphone
CN110948525B (zh) * 2019-12-25 2021-11-30 西南石油大学 一种爬壁机器人安全防护联合保护装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT150218B (de) * 1934-12-29 1937-07-26 Ver Telephon Czeija Nissl & Co Akustische Vorrichtung.
NL67077C (fr) * 1945-12-03
AT163965B (de) * 1947-11-26 1949-09-10 Henry Radio Heinrich & Co Einstellbares Schwingungssystem
US2515031A (en) * 1948-03-31 1950-07-11 Bell Telephone Labor Inc Microphone having controllable directional response pattern
DE1073545B (de) * 1953-06-02 1960-01-21 Akustische u Kino Gerate Ges mbH, Wien Dynamisches Rieht mikrophon
AT186688B (de) * 1954-08-07 1956-09-10 Akg Akustische Kino Geraete Dynamisches Mikrophon mit einseitiger Richtwirkung
US2865464A (en) * 1954-08-07 1958-12-23 Gorike Rudolf Unidirectional dynamic microphone
DE1014595B (de) * 1955-02-15 1957-08-29 Lab Wennebostel Richtmikrophon
AT190987B (de) * 1956-01-04 1957-07-25 Henry Radio Heinrich & Co Tauchspulenmikrophon
USRE26030E (en) * 1956-02-28 1966-05-24 Dynamic transducer

Also Published As

Publication number Publication date
CH385289A (de) 1964-12-15
US3141070A (en) 1964-07-14
FR1260478A (fr) 1961-05-05
DE1282717B (de) 1968-11-14
GB956448A (en) 1964-04-29

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