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
NL190970A (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
US2295483A (en) * 1934-06-04 1942-09-08 Jensen Radio Mfg Company Loudspeaker
US2429470A (en) * 1934-06-04 1947-10-21 Jensen Mfg Company Loud-speaker with pressure-equalized chamber system enclosing flux gap
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
US2549963A (en) 1951-04-24
DE836497C (en) 1952-04-15

Similar Documents

Publication Publication Date Title
FR915350A (en)
BE465306A (en)
AT190006B (en)
BE468835A (en)
BE464548A (en)
NL67077C (en)
BE458693A (en)
BE460560A (en)
BE462136A (en)
BE469303A (en)
BE462813A (en)
BE462915A (en)
BE462945A (en)
BE463048A (en)
BE463304A (en)
BE463403A (en)
BE463711A (en)
NL69093C (en)
NL62934C (en)
NL30345C (en)
LU28379A1 (en)
LU27914A1 (en)
BE463863A (en)
BE477488A (en)
BE468393A (en)