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EP1241919A3 - A method for reducing distortion in a receiver - Google Patents

A method for reducing distortion in a receiver Download PDF

Info

Publication number
EP1241919A3
EP1241919A3 EP02251724A EP02251724A EP1241919A3 EP 1241919 A3 EP1241919 A3 EP 1241919A3 EP 02251724 A EP02251724 A EP 02251724A EP 02251724 A EP02251724 A EP 02251724A EP 1241919 A3 EP1241919 A3 EP 1241919A3
Authority
EP
European Patent Office
Prior art keywords
receiver
housing
diaphragm assembly
diaphragm
paddle
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.)
Granted
Application number
EP02251724A
Other languages
German (de)
French (fr)
Other versions
EP1241919A2 (en
EP1241919B1 (en
Inventor
Daniel Max Warren
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.)
Knowles Electronics LLC
Original Assignee
Knowles Electronics LLC
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 Knowles Electronics LLC filed Critical Knowles Electronics LLC
Publication of EP1241919A2 publication Critical patent/EP1241919A2/en
Publication of EP1241919A3 publication Critical patent/EP1241919A3/en
Application granted granted Critical
Publication of EP1241919B1 publication Critical patent/EP1241919B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/02—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/06—Telephone receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

A receiver, such as for use in a hearing aid, is disclosed. The receiver comprises a housing and a diaphragm assembly disposed within the housing. The diaphragm assembly acoustically divides the housing into a front volume and a back volume. The diaphragm assembly comprises a paddle having a perimeter, a flexible annulus connected to the paddle, and a diaphragm support, wherein the diaphragm support secures the perimeter of the annulus to the housing. The receiver further comprises a plurality of apertures in the diaphragm assembly, wherein the plurality of apertures provides an acoustic distortion of no greater than 2% THD.
EP20020251724 2001-03-12 2002-03-12 A method for reducing distortion in a receiver Expired - Lifetime EP1241919B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US27508601P 2001-03-12 2001-03-12
US9581901A 2001-03-12 2001-03-12
US95819 2001-03-12
US275086P 2001-03-12

Publications (3)

Publication Number Publication Date
EP1241919A2 EP1241919A2 (en) 2002-09-18
EP1241919A3 true EP1241919A3 (en) 2003-07-16
EP1241919B1 EP1241919B1 (en) 2011-10-05

Family

ID=26790653

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020251724 Expired - Lifetime EP1241919B1 (en) 2001-03-12 2002-03-12 A method for reducing distortion in a receiver

Country Status (2)

Country Link
EP (1) EP1241919B1 (en)
DK (1) DK1241919T3 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3876843A (en) * 1973-01-02 1975-04-08 Textron Inc Directional hearing aid with variable directivity
US3995124A (en) * 1974-09-25 1976-11-30 Saad Zaghloul Mohamed Gabr Noise cancelling microphone
US5452268A (en) * 1994-08-12 1995-09-19 The Charles Stark Draper Laboratory, Inc. Acoustic transducer with improved low frequency response
WO2000041432A2 (en) * 1999-01-07 2000-07-13 Sarnoff Corporation Hearing aid with large diaphragm microphone element including a printed circuit board

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3876843A (en) * 1973-01-02 1975-04-08 Textron Inc Directional hearing aid with variable directivity
US3995124A (en) * 1974-09-25 1976-11-30 Saad Zaghloul Mohamed Gabr Noise cancelling microphone
US5452268A (en) * 1994-08-12 1995-09-19 The Charles Stark Draper Laboratory, Inc. Acoustic transducer with improved low frequency response
WO2000041432A2 (en) * 1999-01-07 2000-07-13 Sarnoff Corporation Hearing aid with large diaphragm microphone element including a printed circuit board

Also Published As

Publication number Publication date
EP1241919A2 (en) 2002-09-18
EP1241919B1 (en) 2011-10-05
DK1241919T3 (en) 2012-02-06

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