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DE59204943D1 - Hearing aid - Google Patents

Hearing aid

Info

Publication number
DE59204943D1
DE59204943D1 DE59204943T DE59204943T DE59204943D1 DE 59204943 D1 DE59204943 D1 DE 59204943D1 DE 59204943 T DE59204943 T DE 59204943T DE 59204943 T DE59204943 T DE 59204943T DE 59204943 D1 DE59204943 D1 DE 59204943D1
Authority
DE
Germany
Prior art keywords
voltage
generator
operating voltage
integrator
triangular
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.)
Expired - Fee Related
Application number
DE59204943T
Other languages
German (de)
Inventor
Gerhard Pfannenmueller
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.)
Sivantos GmbH
Original Assignee
Siemens Audioligische Technik GmbH
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 Siemens Audioligische Technik GmbH filed Critical Siemens Audioligische Technik GmbH
Application granted granted Critical
Publication of DE59204943D1 publication Critical patent/DE59204943D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing
    • 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
    • H04R25/502—Customised settings for obtaining desired overall acoustical characteristics using analog signal processing
    • 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
    • H04R2225/33—Aspects relating to adaptation of the battery voltage, e.g. its regulation, increase or decrease

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)
  • Amplifiers (AREA)
  • Adornments (AREA)
  • Finger-Pressure Massage (AREA)

Abstract

In a hearing aid having a microphone (2), an amplifier device, a receiver (9) and a battery (16) as source for an operating voltage (UB), a switched-mode amplifier (8) as output stage and a triangular-voltage generator (5) as base signal generator for a pulse-duration-modulated signal, via which the switched-mode amplifier (8) is controllable, the triangular-voltage generator (5) exhibiting at least one integrator (10), the direction of integration of which is reversible in dependence on an input signal (I), the quotient of the operating voltage (UB) and of the quest value of the triangular voltage of the generator (5) is to remain at least largely constant with a varying operating voltage (UB). For this purpose, the integrator (10) is effectively connected at the input end to a switching means (12) and at the output end to a comparison circuit (14), the comparison circuit (14) controlling the switching means (12) in dependence on at least one threshold voltage derived from the operating voltage (UB), by means of which switching means the integrator (10) can be supplied with the input signal (I). <IMAGE>
DE59204943T 1992-06-29 1992-06-29 Hearing aid Expired - Fee Related DE59204943D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92111013A EP0576700B1 (en) 1992-06-29 1992-06-29 Hearing aid

Publications (1)

Publication Number Publication Date
DE59204943D1 true DE59204943D1 (en) 1996-02-15

Family

ID=8209759

Family Applications (1)

Application Number Title Priority Date Filing Date
DE59204943T Expired - Fee Related DE59204943D1 (en) 1992-06-29 1992-06-29 Hearing aid

Country Status (5)

Country Link
EP (1) EP0576700B1 (en)
AT (1) ATE132682T1 (en)
CA (1) CA2099187A1 (en)
DE (1) DE59204943D1 (en)
DK (1) DK0576700T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK1473968T3 (en) * 1996-12-04 2009-09-07 Phonak Ag The method and apparatus for transferring energy to an apparatus
CN100337171C (en) * 2002-05-16 2007-09-12 广达电脑股份有限公司 Double frequency pulse wave width modulating and voltage stabilizer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2908942C3 (en) * 1979-03-07 1982-01-28 Siemens AG, 1000 Berlin und 8000 München Device for generating an electrical triangular voltage
US4689819B1 (en) * 1983-12-08 1996-08-13 Knowles Electronics Inc Class D hearing aid amplifier
IL89259A0 (en) * 1989-02-10 1989-09-10 Avr Communications Ltd Audio apparatus
CH681499A5 (en) * 1990-10-30 1993-03-31 Ascom Audiosys Ag

Also Published As

Publication number Publication date
ATE132682T1 (en) 1996-01-15
EP0576700B1 (en) 1996-01-03
EP0576700A1 (en) 1994-01-05
CA2099187A1 (en) 1993-12-30
DK0576700T3 (en) 1996-06-03

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee