DK3454568T3 - Microphone preamplifier with polarizing voltage supply - Google Patents

Microphone preamplifier with polarizing voltage supply Download PDF

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Publication number
DK3454568T3
DK3454568T3 DK17190512.8T DK17190512T DK3454568T3 DK 3454568 T3 DK3454568 T3 DK 3454568T3 DK 17190512 T DK17190512 T DK 17190512T DK 3454568 T3 DK3454568 T3 DK 3454568T3
Authority
DK
Denmark
Prior art keywords
voltage supply
polarizing voltage
microphone preamplifier
preamplifier
microphone
Prior art date
Application number
DK17190512.8T
Other languages
Danish (da)
Inventor
Jørgen Baekke
Morten Oksbjerg
Kresten Marbjerg
Original Assignee
G R A S Sound & Vibration 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 G R A S Sound & Vibration As filed Critical G R A S Sound & Vibration As
Application granted granted Critical
Publication of DK3454568T3 publication Critical patent/DK3454568T3/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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • 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
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/04—Structural association of microphone with electric circuitry therefor
    • 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
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/13—Acoustic transducers and sound field adaptation in vehicles

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
DK17190512.8T 2017-09-12 2017-09-12 Microphone preamplifier with polarizing voltage supply DK3454568T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17190512.8A EP3454568B1 (en) 2017-09-12 2017-09-12 Microphone pre-amplifier with polarization voltage supply

Publications (1)

Publication Number Publication Date
DK3454568T3 true DK3454568T3 (en) 2021-01-11

Family

ID=59858567

Family Applications (1)

Application Number Title Priority Date Filing Date
DK17190512.8T DK3454568T3 (en) 2017-09-12 2017-09-12 Microphone preamplifier with polarizing voltage supply

Country Status (3)

Country Link
EP (1) EP3454568B1 (en)
DK (1) DK3454568T3 (en)
PL (1) PL3454568T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL442532A1 (en) 2022-10-14 2024-04-15 Centrum Astronomiczne Im. Mikołaja Kopernika Polskiej Akademii Nauk Preamplifier for a condenser microphone operating in the infrasonic frequency range

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5377273A (en) * 1992-03-26 1994-12-27 Hewlett-Packard Company Batteryless power supply for transducers
US7356151B2 (en) * 2004-03-30 2008-04-08 Akg Acoustic Gmbh Microphone system
US9253569B2 (en) * 2013-12-20 2016-02-02 Infineon Technologies Ag System and method for a cancelation circuit
CN105072241B (en) * 2015-07-31 2018-01-19 合肥赛为智能有限公司 A kind of intercom system isolating transformer anti-side-tone circuit

Also Published As

Publication number Publication date
PL3454568T3 (en) 2021-05-04
EP3454568B1 (en) 2020-10-28
EP3454568A1 (en) 2019-03-13

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