DK0479015T3 - Volume control for hearing aids - Google Patents

Volume control for hearing aids

Info

Publication number
DK0479015T3
DK0479015T3 DK91115640.4T DK91115640T DK0479015T3 DK 0479015 T3 DK0479015 T3 DK 0479015T3 DK 91115640 T DK91115640 T DK 91115640T DK 0479015 T3 DK0479015 T3 DK 0479015T3
Authority
DK
Denmark
Prior art keywords
potentiometer
rotation
linear
amplifier
volume control
Prior art date
Application number
DK91115640.4T
Other languages
Danish (da)
Inventor
Herbert Dr Baechler
Original Assignee
Phonak 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 Phonak Ag filed Critical Phonak Ag
Application granted granted Critical
Publication of DK0479015T3 publication Critical patent/DK0479015T3/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
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/02—Manually-operated control
    • H03G3/04—Manually-operated control in untuned amplifiers
    • H03G3/10—Manually-operated control in untuned amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/61—Aspects relating to mechanical or electronic switches or control elements, e.g. functioning
    • 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
    • H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
    • H04R25/603—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of mechanical or electronic switches or control elements

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

A hearing aid with microphone (1), electronic amplifier (2) and reproduction loudspeaker (3) exhibits a linear/logarithmic converter (6). The control current Is output by this converter (6) is exponential with respect to the rotation of the operating knob of a linear potentiometer (5), by means of which the gain of the amplifier (2) can be set. A linear rotation of the operating knob of the potentiometer (5) thus produces a linear rising or decreasing of the volume output by the loudspeaker. The direction of rotation and the zero point of the potentiometer (5) can be reversed by means of a change-over switch (7), the amplifier characteristic remaining the same in relation to the rotation of the potentiometer (5). <IMAGE>
DK91115640.4T 1990-10-02 1991-09-14 Volume control for hearing aids DK0479015T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH3174/90A CH681126A5 (en) 1990-10-02 1990-10-02

Publications (1)

Publication Number Publication Date
DK0479015T3 true DK0479015T3 (en) 1996-08-12

Family

ID=4250220

Family Applications (1)

Application Number Title Priority Date Filing Date
DK91115640.4T DK0479015T3 (en) 1990-10-02 1991-09-14 Volume control for hearing aids

Country Status (5)

Country Link
EP (1) EP0479015B1 (en)
AT (1) ATE136173T1 (en)
CH (1) CH681126A5 (en)
DE (1) DE59107612D1 (en)
DK (1) DK0479015T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0548479A1 (en) * 1991-12-21 1993-06-30 Hagenuk Gmbh Amplification circuit with exponential gain control

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2013365B2 (en) * 1970-03-20 1972-08-03 Robert Bosch Elektronik Gmbh, 1000 Berlin Und 7000 Stuttgart MULTI-STAGE TRANSISTOR AMPLIFIER FOR HEAVY-HEAVY DEVICES
DE2253987C3 (en) * 1972-11-03 1979-10-11 Siemens Ag, 1000 Berlin Und 8000 Muenchen Audio amplifier for two-channel playback
IT1004685B (en) * 1974-01-09 1976-07-20 Indesit ELECTRIC CIRCUIT ATTENUATOR OF SIGNALS
US4413235A (en) * 1981-02-23 1983-11-01 Motorola, Inc. Low temperature coefficient logarithmic electronic gain controlled amplifier

Also Published As

Publication number Publication date
ATE136173T1 (en) 1996-04-15
CH681126A5 (en) 1993-01-15
EP0479015B1 (en) 1996-03-27
DE59107612D1 (en) 1996-05-02
EP0479015A3 (en) 1993-03-17
EP0479015A2 (en) 1992-04-08

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