NL142042B - Elektro-akoestische omzetter met ringvormige resonantiekamer. - Google Patents

Elektro-akoestische omzetter met ringvormige resonantiekamer.

Info

Publication number
NL142042B
NL142042B NL63291745A NL291745A NL142042B NL 142042 B NL142042 B NL 142042B NL 63291745 A NL63291745 A NL 63291745A NL 291745 A NL291745 A NL 291745A NL 142042 B NL142042 B NL 142042B
Authority
NL
Netherlands
Prior art keywords
electro
ring
resonance chamber
acoustic converter
shaped resonance
Prior art date
Application number
NL63291745A
Other languages
English (en)
Dutch (nl)
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of NL142042B publication Critical patent/NL142042B/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
    • 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 
    • H04R1/225—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  for telephonic receivers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
NL63291745A 1962-04-27 1963-04-19 Elektro-akoestische omzetter met ringvormige resonantiekamer. NL142042B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES79202A DE1188656B (de) 1962-04-27 1962-04-27 Anordnung zur Frequenzgangverbesserung eines elektroakustischen Wandlers

Publications (1)

Publication Number Publication Date
NL142042B true NL142042B (nl) 1974-04-16

Family

ID=7508023

Family Applications (2)

Application Number Title Priority Date Filing Date
NL291745D NL291745A (fi) 1962-04-27
NL63291745A NL142042B (nl) 1962-04-27 1963-04-19 Elektro-akoestische omzetter met ringvormige resonantiekamer.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL291745D NL291745A (fi) 1962-04-27

Country Status (8)

Country Link
US (1) US3246721A (fi)
BE (1) BE631608A (fi)
CH (1) CH399542A (fi)
DE (1) DE1188656B (fi)
FI (1) FI42731B (fi)
GB (1) GB999378A (fi)
NL (2) NL142042B (fi)
SE (1) SE318610B (fi)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3396241A (en) * 1964-10-23 1968-08-06 Russell K Anderson Stethoscope with sound spectrum selection
CH528197A (de) * 1971-12-20 1972-09-15 Ibm Gehäuseanordnung mit einem elektro-akustischen Wandler, und Verwendung derselben in einem Telefonapparat einer Nachrichtenübertragungsanlage mit PCM-Codierung
CA1069233A (en) * 1977-01-18 1980-01-01 Northern Telecom Limited Telephone hand set transmitter with improved output response
DE2948034A1 (de) * 1979-11-29 1981-06-11 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Elektro-akustischer wandler mit zur verbesserung des frequenzverlaufes vorgesehenen resonanzraeumen
JPS6163193A (ja) * 1984-09-04 1986-04-01 Nippon Chemicon Corp 電気音響変換器
JPH0450718Y2 (fi) * 1986-02-28 1992-11-30
US4727583A (en) * 1986-10-28 1988-02-23 Motorola, Inc. Telephone transducer with improved frequency response
WO1989004106A1 (en) * 1987-10-28 1989-05-05 Acs Communications, Inc. Acoustic filter microphone cup
US4864611A (en) * 1987-11-24 1989-09-05 Helmuth Keld T Telephone handset attachment for use in-the-ear hearing aids
US4977975A (en) * 1989-09-14 1990-12-18 Lazzeroni John J Vented motorcycle helmet speaker enclosure
US7305098B2 (en) * 2002-05-24 2007-12-04 Phonak Ag Hearing device
TWI285510B (en) * 2006-01-10 2007-08-11 Gaiatek Inc Personal type leads of a sound device
US8111854B2 (en) 2006-11-29 2012-02-07 Yan-Ru Peng Methods and apparatus for sound production
EP2869598B1 (en) * 2013-10-30 2018-06-13 SVANTEK Sp. z o.o. A device for measuring sound level
US10171905B2 (en) * 2016-02-14 2019-01-01 Transound Electronics Co., Ltd. Headphones with frequency-targeted resonance chambers
US10542337B2 (en) * 2017-07-18 2020-01-21 Shure Acquisition Holdings, Inc. Moving coil microphone transducer with secondary port
US10623847B2 (en) * 2018-08-02 2020-04-14 EVA Automation, Inc. Headphone with multiple acoustic paths

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1854716A (en) * 1929-01-24 1932-04-19 Herman G Pape Sound instrument
US2327137A (en) * 1941-05-21 1943-08-17 Sonotone Corp Hearing aid microphone
US2342334A (en) * 1942-07-11 1944-02-22 Maico Company Inc Variable baffle for translating devices
US2490466A (en) * 1944-07-19 1949-12-06 Rca Corp Loudspeaker diaphragm support comprising plural compliant members
US2524393A (en) * 1947-12-06 1950-10-03 E A Myers & Sons Noise reducing hearing aid case
US2585052A (en) * 1948-04-23 1952-02-12 Int Standard Electric Corp Granule type acoustic transducer
GB698695A (en) * 1951-01-11 1953-10-21 Lustraphone Ltd Improvements in or relating to microphones
DE1078174B (de) * 1956-02-25 1960-03-24 Dr Emil Podszus Aufhaengung fuer Lautsprechermembranen mit besonderer Daempfung

Also Published As

Publication number Publication date
NL291745A (fi)
US3246721A (en) 1966-04-19
CH399542A (de) 1965-09-30
SE318610B (fi) 1969-12-15
FI42731B (fi) 1970-06-30
DE1188656B (de) 1965-03-11
BE631608A (fi)
GB999378A (en) 1965-07-21

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