DK144589A - Elektroniske filtre til hoereapparater og andre elektroakustiske anlaeg og fremgangsmaade ved disses drift - Google Patents

Elektroniske filtre til hoereapparater og andre elektroakustiske anlaeg og fremgangsmaade ved disses drift

Info

Publication number
DK144589A
DK144589A DK144589A DK144589A DK144589A DK 144589 A DK144589 A DK 144589A DK 144589 A DK144589 A DK 144589A DK 144589 A DK144589 A DK 144589A DK 144589 A DK144589 A DK 144589A
Authority
DK
Denmark
Prior art keywords
electroacustic
procedures
operations
systems
hearing devices
Prior art date
Application number
DK144589A
Other languages
English (en)
Other versions
DK144589D0 (da
Inventor
A Maynard Engebretson
Michael P O'connell
Baohua Zheng
Original Assignee
Central Inst Deaf
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 Central Inst Deaf filed Critical Central Inst Deaf
Publication of DK144589D0 publication Critical patent/DK144589D0/da
Publication of DK144589A publication Critical patent/DK144589A/da

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • H04R25/45—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback
    • H04R25/453—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback electronically
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/04—Circuits for transducers for correcting frequency response
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • H03H2021/007—Computation saving measures; Accelerating measures
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • H03H2021/007—Computation saving measures; Accelerating measures
    • H03H2021/0072—Measures relating to the coefficients
    • H03H2021/0074—Reduction of the update frequency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
    • H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Filters That Use Time-Delay Elements (AREA)
DK144589A 1988-03-23 1989-03-22 Elektroniske filtre til hoereapparater og andre elektroakustiske anlaeg og fremgangsmaade ved disses drift DK144589A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/172,266 US5016280A (en) 1988-03-23 1988-03-23 Electronic filters, hearing aids and methods

Publications (2)

Publication Number Publication Date
DK144589D0 DK144589D0 (da) 1989-03-22
DK144589A true DK144589A (da) 1989-09-24

Family

ID=22626983

Family Applications (1)

Application Number Title Priority Date Filing Date
DK144589A DK144589A (da) 1988-03-23 1989-03-22 Elektroniske filtre til hoereapparater og andre elektroakustiske anlaeg og fremgangsmaade ved disses drift

Country Status (9)

Country Link
US (1) US5016280A (da)
EP (1) EP0342782B1 (da)
JP (1) JP2921849B2 (da)
KR (1) KR0142423B1 (da)
AU (1) AU611781B2 (da)
CA (1) CA1326285C (da)
DE (1) DE68928538T2 (da)
DK (1) DK144589A (da)
MY (1) MY103857A (da)

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Also Published As

Publication number Publication date
EP0342782A2 (en) 1989-11-23
DK144589D0 (da) 1989-03-22
EP0342782A3 (en) 1990-10-24
JP2921849B2 (ja) 1999-07-19
KR890015633A (ko) 1989-10-30
DE68928538T2 (de) 1998-06-25
AU611781B2 (en) 1991-06-20
JPH01298899A (ja) 1989-12-01
AU3142189A (en) 1989-09-28
KR0142423B1 (ko) 1998-07-01
DE68928538D1 (de) 1998-02-19
US5016280A (en) 1991-05-14
EP0342782B1 (en) 1998-01-14
MY103857A (en) 1993-09-30
CA1326285C (en) 1994-01-18

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