DK41593A - Method and coupling to reduce the harmonic distortion of a capacitive transducer - Google Patents

Method and coupling to reduce the harmonic distortion of a capacitive transducer

Info

Publication number
DK41593A
DK41593A DK041593A DK41593A DK41593A DK 41593 A DK41593 A DK 41593A DK 041593 A DK041593 A DK 041593A DK 41593 A DK41593 A DK 41593A DK 41593 A DK41593 A DK 41593A
Authority
DK
Denmark
Prior art keywords
coupling
reduce
harmonic distortion
capacitive transducer
capacitive
Prior art date
Application number
DK041593A
Other languages
Danish (da)
Other versions
DK41593D0 (en
DK170196B1 (en
Inventor
Erling Frederiksen
Original Assignee
Brueel & Kjaer As
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 Brueel & Kjaer As filed Critical Brueel & Kjaer As
Priority to DK041593A priority Critical patent/DK170196B1/en
Publication of DK41593D0 publication Critical patent/DK41593D0/en
Priority to EP94913038A priority patent/EP0694246A1/en
Priority to JP6521571A priority patent/JPH08509327A/en
Priority to AU65346/94A priority patent/AU6534694A/en
Priority to PCT/DK1994/000142 priority patent/WO1994023547A1/en
Publication of DK41593A publication Critical patent/DK41593A/en
Application granted granted Critical
Publication of DK170196B1 publication Critical patent/DK170196B1/en

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
    • H04R19/00—Electrostatic transducers
    • H04R19/04—Microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • H04R3/06—Circuits for transducers, loudspeakers or microphones for correcting frequency response of electrostatic transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
DK041593A 1993-04-07 1993-04-07 Method and coupling to reduce the harmonic distortion of a capacitive transducer DK170196B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DK041593A DK170196B1 (en) 1993-04-07 1993-04-07 Method and coupling to reduce the harmonic distortion of a capacitive transducer
EP94913038A EP0694246A1 (en) 1993-04-07 1994-04-06 A method and a coupling for reducing the harmonic distortion of a capacitive transducer
JP6521571A JPH08509327A (en) 1993-04-07 1994-04-06 Method and circuit configuration for reducing harmonic distortion of a capacitive transducer
AU65346/94A AU6534694A (en) 1993-04-07 1994-04-06 A method and a coupling for reducing the harmonic distortion of a capacitive transducer
PCT/DK1994/000142 WO1994023547A1 (en) 1993-04-07 1994-04-06 A method and a coupling for reducing the harmonic distortion of a capacitive transducer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK041593A DK170196B1 (en) 1993-04-07 1993-04-07 Method and coupling to reduce the harmonic distortion of a capacitive transducer
DK41593 1993-04-07

Publications (3)

Publication Number Publication Date
DK41593D0 DK41593D0 (en) 1993-04-07
DK41593A true DK41593A (en) 1994-10-08
DK170196B1 DK170196B1 (en) 1995-06-06

Family

ID=8093260

Family Applications (1)

Application Number Title Priority Date Filing Date
DK041593A DK170196B1 (en) 1993-04-07 1993-04-07 Method and coupling to reduce the harmonic distortion of a capacitive transducer

Country Status (5)

Country Link
EP (1) EP0694246A1 (en)
JP (1) JPH08509327A (en)
AU (1) AU6534694A (en)
DK (1) DK170196B1 (en)
WO (1) WO1994023547A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08233581A (en) * 1994-12-28 1996-09-13 Yoshiro Tomikawa Driving device for electrostatic converting means
JPH08307199A (en) * 1995-01-11 1996-11-22 Yoshiro Tomikawa Capacitive component reduction circuit for electrostatic conversion means and driver and detector for electrostatic conversion means
JP4057212B2 (en) 2000-02-15 2008-03-05 三菱電機株式会社 Microphone device
AU2002237204A1 (en) 2001-03-09 2002-09-24 Techtronic A/S An electret condensor microphone preamplifier that is insensitive to leakage currents at the input
CN100432682C (en) * 2001-09-06 2008-11-12 东京毅力科创株式会社 Potential fixing device and potential fixing method
TWI221196B (en) * 2001-09-06 2004-09-21 Tokyo Electron Ltd Impedance measuring circuit, its method, and electrostatic capacitance measuring circuit
EP2317645B1 (en) 2009-10-16 2013-04-10 Nxp B.V. Capacitive sensor
US10153740B2 (en) 2016-07-11 2018-12-11 Knowles Electronics, Llc Split signal differential MEMS microphone
EP3379204B1 (en) 2017-03-22 2021-02-17 Knowles Electronics, LLC Arrangement to calibrate a capacitive sensor interface

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3116366A (en) * 1959-08-18 1963-12-31 Arnold L Seligson Capacitive source signal generators
GB2003364B (en) * 1977-08-24 1982-03-03 Post Office Electroacoustic transducer for a microphone
IT1112691B (en) * 1978-07-12 1986-01-20 Sits Soc It Telecom Siemens CONDENSER MICROPHONE

Also Published As

Publication number Publication date
EP0694246A1 (en) 1996-01-31
AU6534694A (en) 1994-10-24
WO1994023547A1 (en) 1994-10-13
DK41593D0 (en) 1993-04-07
JPH08509327A (en) 1996-10-01
DK170196B1 (en) 1995-06-06

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Legal Events

Date Code Title Description
B1 Patent granted (law 1993)
PBP Patent lapsed