DE59106139D1 - Geschalteter Verstärker. - Google Patents

Geschalteter Verstärker.

Info

Publication number
DE59106139D1
DE59106139D1 DE59106139T DE59106139T DE59106139D1 DE 59106139 D1 DE59106139 D1 DE 59106139D1 DE 59106139 T DE59106139 T DE 59106139T DE 59106139 T DE59106139 T DE 59106139T DE 59106139 D1 DE59106139 D1 DE 59106139D1
Authority
DE
Germany
Prior art keywords
switched amplifier
amplifier
switched
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 - Lifetime
Application number
DE59106139T
Other languages
German (de)
English (en)
Inventor
Francois Callias
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.)
Bernafon AG
Original Assignee
Ascom Audiosys 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 Ascom Audiosys AG filed Critical Ascom Audiosys AG
Application granted granted Critical
Publication of DE59106139D1 publication Critical patent/DE59106139D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
    • H03G7/005—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers using discontinuously variable devices, e.g. switch-operated
    • 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

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
DE59106139T 1990-10-30 1991-10-26 Geschalteter Verstärker. Expired - Lifetime DE59106139D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH3446/90A CH681499A5 (enExample) 1990-10-30 1990-10-30

Publications (1)

Publication Number Publication Date
DE59106139D1 true DE59106139D1 (de) 1995-09-07

Family

ID=4256128

Family Applications (1)

Application Number Title Priority Date Filing Date
DE59106139T Expired - Lifetime DE59106139D1 (de) 1990-10-30 1991-10-26 Geschalteter Verstärker.

Country Status (6)

Country Link
US (1) US5317640A (enExample)
EP (1) EP0483702B1 (enExample)
AU (1) AU636248B2 (enExample)
CH (1) CH681499A5 (enExample)
DE (1) DE59106139D1 (enExample)
DK (1) DK0483702T3 (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0576700B1 (de) * 1992-06-29 1996-01-03 Siemens Audiologische Technik GmbH Hörgerät
DK0576701T3 (da) * 1992-06-29 1996-06-03 Siemens Audiologische Technik Høreapparat
US5815581A (en) * 1995-10-19 1998-09-29 Mitel Semiconductor, Inc. Class D hearing aid amplifier with feedback
US5838807A (en) * 1995-10-19 1998-11-17 Mitel Semiconductor, Inc. Trimmable variable compression amplifier for hearing aid
US6044162A (en) * 1996-12-20 2000-03-28 Sonic Innovations, Inc. Digital hearing aid using differential signal representations
US5963106A (en) * 1998-03-16 1999-10-05 Sonic Innovations, Inc. Double-sided pulse width modulator
US6687380B1 (en) 1999-12-17 2004-02-03 Broan-Nutone Llc Active sub-woofer speaker system
US20060072776A1 (en) * 1999-12-17 2006-04-06 Tejaswi Vishwamitra Amplifier and sub-woofer speaker system
US7889875B2 (en) * 2006-11-09 2011-02-15 National Chiao Tung University Class-D driving method for stereo load
TWI392214B (zh) * 2009-06-04 2013-04-01 Univ Nat Chiao Tung The driving device and driving method of multi - phase straight / AC converter
US10957445B2 (en) 2017-10-05 2021-03-23 Hill-Rom Services, Inc. Caregiver and staff information system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3229049A (en) * 1960-08-04 1966-01-11 Goldberg Hyman Hearing aid
DE3017414A1 (de) * 1980-05-07 1981-11-12 Deutsche Itt Industries Gmbh, 7800 Freiburg Audio-leistungsverstaerker mit d-gegentakt-endstufe
US4689819B1 (en) * 1983-12-08 1996-08-13 Knowles Electronics Inc Class D hearing aid amplifier
US4592087B1 (en) * 1983-12-08 1996-08-13 Knowles Electronics Inc Class D hearing aid amplifier
US4829270A (en) * 1986-03-12 1989-05-09 Beltone Electronics Corporation Compansion system
US4831334A (en) * 1987-06-08 1989-05-16 Hughes Aircraft Company Envelope amplifier

Also Published As

Publication number Publication date
EP0483702B1 (de) 1995-08-02
AU8586891A (en) 1992-05-14
DK0483702T3 (da) 1995-12-18
CH681499A5 (enExample) 1993-03-31
US5317640A (en) 1994-05-31
EP0483702A3 (en) 1993-06-09
EP0483702A2 (de) 1992-05-06
AU636248B2 (en) 1993-04-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition