NL67077C - - Google Patents

Info

Publication number
NL67077C
NL67077C NL67077DA NL67077C NL 67077 C NL67077 C NL 67077C NL 67077D A NL67077D A NL 67077DA NL 67077 C NL67077 C NL 67077C
Authority
NL
Netherlands
Application number
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.)
Publication of NL67077C publication Critical patent/NL67077C/xx

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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
NL67077D 1945-12-03 NL67077C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL122255 1945-12-03

Publications (1)

Publication Number Publication Date
NL67077C true NL67077C (en)

Family

ID=19750392

Family Applications (1)

Application Number Title Priority Date Filing Date
NL67077D NL67077C (en) 1945-12-03

Country Status (4)

Country Link
US (1) US2549963A (en)
DE (1) DE836497C (en)
FR (1) FR936416A (en)
NL (1) NL67077C (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB698695A (en) * 1951-01-11 1953-10-21 Lustraphone Ltd Improvements in or relating to microphones
US2838607A (en) * 1951-04-27 1958-06-10 Rca Corp Combination chassis and loudspeaker
US2761912A (en) * 1951-05-31 1956-09-04 Martin L Touger Sound translating apparatus
US2773130A (en) * 1953-03-31 1956-12-04 Rca Corp Acoustical resistance for pressure type microphones
US2858377A (en) * 1953-04-29 1958-10-28 Arthur Blumenfeld Driver unit for loudspeakers
DE1073545B (en) * 1953-06-02 1960-01-21 Akustische u Kino Gerate Ges mbH, Wien Dynamic directional microphone
NL102054C (en) * 1954-01-11
DE1079997B (en) * 1954-06-29 1960-04-14 Kockums Mek Verkst S Aktiebola Pressure medium operated sound generator
US3085847A (en) * 1956-02-16 1963-04-16 Massa Division Of Cohu Electro Direct recording oscillograph
US2923783A (en) * 1957-06-17 1960-02-02 Stanley F White Electro-acoustical transducer
GB956448A (en) * 1959-06-24 1964-04-29 Philips Electrical Ind Ltd Improvements in or relating to electrodynamic microphones
AT219680B (en) * 1960-07-15 1962-02-12 Akg Akustische Kino Geraete Dynamic headphones
US3079471A (en) * 1961-03-01 1963-02-26 Ampex Loudspeaker
FR85403E (en) * 1963-07-16 1965-08-06 Geophysique Cie Gle Improvements to electro-mechanical vibrators
US3581015A (en) * 1966-12-28 1971-05-25 Aiwa Co Dynamic microphone
DE1277347B (en) * 1967-06-05 1968-09-12 Willco Gmbh Microphone for hearing aids
DE2503828C3 (en) * 1975-01-30 1983-04-21 Friedrich Reiner Telefonfabrik Permanent dynamic electroacoustic transducer capsule
NL7908896A (en) * 1979-12-11 1981-07-01 Philips Nv A MECHANICAL FILTER FOR AN ELECTRODYNAMIC CONVERTER.
DE3016385A1 (en) * 1980-04-29 1981-11-05 Realton-Gesellschaft für neuartige Musikinstrumente mbH & Co KG, 5350 Euskirchen DEVICE FOR CONVERTING A DIFFERENTIAL PRESSURE FORMING A USER SIGNAL TO AN ELECTRIC SIZE
WO1989004106A1 (en) * 1987-10-28 1989-05-05 Acs Communications, Inc. Acoustic filter microphone cup
US8630435B2 (en) * 2008-08-08 2014-01-14 Nokia Corporation Apparatus incorporating an adsorbent material, and methods of making same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1957765A (en) * 1934-05-08 Magnetomotive force circuits
US1634380A (en) * 1922-04-21 1927-07-05 Nayler William Edwin Sound box for gramophones and similar instruments
US1964606A (en) * 1932-04-12 1934-06-26 Bell Telephone Labor Inc Acoustic device
US2429470A (en) * 1934-06-04 1947-10-21 Jensen Mfg Company Loud-speaker with pressure-equalized chamber system enclosing flux gap
US2295483A (en) * 1934-06-04 1942-09-08 Jensen Radio Mfg Company Loudspeaker
US2197649A (en) * 1936-11-14 1940-04-16 Cinaudagraph Corp Loudspeaker and method of formation
US2312238A (en) * 1938-01-27 1943-02-23 Rca Corp Dynamic loud-speaker
US2367026A (en) * 1941-08-06 1945-01-09 Rock Ola Mfg Corp Electrodynamic speaker
US2395166A (en) * 1942-12-24 1946-02-19 Astatic Corp Transducer

Also Published As

Publication number Publication date
FR936416A (en) 1948-07-20
DE836497C (en) 1952-04-15
US2549963A (en) 1951-04-24

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