BR9810510A - Circuito de aparelho de surdez - Google Patents

Circuito de aparelho de surdez

Info

Publication number
BR9810510A
BR9810510A BR9810510-8A BR9810510A BR9810510A BR 9810510 A BR9810510 A BR 9810510A BR 9810510 A BR9810510 A BR 9810510A BR 9810510 A BR9810510 A BR 9810510A
Authority
BR
Brazil
Prior art keywords
hearing aid
agc
aid circuit
circuit
signal
Prior art date
Application number
BR9810510-8A
Other languages
English (en)
Inventor
Oleg Saltykov
Original Assignee
Siemens Hearing Instr Inc
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 Hearing Instr Inc filed Critical Siemens Hearing Instr Inc
Publication of BR9810510A publication Critical patent/BR9810510A/pt

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices
    • H03G7/08—Volume compression or expansion in amplifiers having semiconductor devices incorporating negative feedback
    • 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
    • H04R25/35—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using translation techniques
    • H04R25/356—Amplitude, e.g. amplitude shift or compression
    • 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

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

Patente de Invenção: <B>"CIRCUITO DE APARELHO DE SURDEZ"<D>. Um aparelho de surdez tem AGC de entrada e AGC de saída usando somente um circuito de ataque/liberação e somente um amplificador de ganho variável. Um sinal de AGC de entrada e um sinal AGC de saída são somados e o sinal somado, processado através do circuito de ataque/liberação, é usado para controlar o ganho do amplificador de ganho variável.
BR9810510-8A 1997-06-30 1998-06-05 Circuito de aparelho de surdez BR9810510A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/885,314 US6049618A (en) 1997-06-30 1997-06-30 Hearing aid having input AGC and output AGC
PCT/US1998/011709 WO1999000896A1 (en) 1997-06-30 1998-06-05 Hearing aid having input agc and output agc

Publications (1)

Publication Number Publication Date
BR9810510A true BR9810510A (pt) 2000-09-05

Family

ID=25386630

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9810510-8A BR9810510A (pt) 1997-06-30 1998-06-05 Circuito de aparelho de surdez

Country Status (8)

Country Link
US (1) US6049618A (pt)
EP (1) EP0995262A1 (pt)
JP (1) JP2002507355A (pt)
CN (1) CN1254454A (pt)
BR (1) BR9810510A (pt)
CA (1) CA2294713A1 (pt)
TW (1) TW387199B (pt)
WO (1) WO1999000896A1 (pt)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7489790B2 (en) * 2000-12-05 2009-02-10 Ami Semiconductor, Inc. Digital automatic gain control
EP1251714B2 (en) * 2001-04-12 2015-06-03 Sound Design Technologies Ltd. Digital hearing aid system
US6633202B2 (en) 2001-04-12 2003-10-14 Gennum Corporation Precision low jitter oscillator circuit
CA2382358C (en) 2001-04-18 2007-01-09 Gennum Corporation Digital quasi-rms detector
ATE318062T1 (de) 2001-04-18 2006-03-15 Gennum Corp Mehrkanal hörgerät mit übertragungsmöglichkeiten zwischen den kanälen
US20020191800A1 (en) * 2001-04-19 2002-12-19 Armstrong Stephen W. In-situ transducer modeling in a digital hearing instrument
US20030007657A1 (en) * 2001-07-09 2003-01-09 Topholm & Westermann Aps Hearing aid with sudden sound alert
EP1284587B1 (en) 2001-08-15 2011-09-28 Sound Design Technologies Ltd. Low-power reconfigurable hearing instrument
US7333623B2 (en) * 2002-03-26 2008-02-19 Oticon A/S Method for dynamic determination of time constants, method for level detection, method for compressing an electric audio signal and hearing aid, wherein the method for compression is used
ES2318715T3 (es) * 2006-11-17 2009-05-01 Akg Acoustics Gmbh Compresor de audio.
US8284971B2 (en) * 2008-11-21 2012-10-09 Envoy Medical Corporation Logarithmic compression systems and methods for hearing amplification
WO2010087632A2 (en) * 2009-01-28 2010-08-05 Samsung Electronics Co., Ltd. Portable terminal and sound detector, which both communicate using body area network, and data controlling method therefor
JP2011147041A (ja) * 2010-01-18 2011-07-28 Panasonic Corp 携帯端末
US9319803B2 (en) * 2011-01-17 2016-04-19 Panasonic Intellectual Property Management Co., Ltd. Hearing aid and method for controlling the same
US11128946B2 (en) * 2017-01-12 2021-09-21 Sonova Ag Hearing device with acoustic shock control and method for acoustic shock control in a hearing device
CN113711624B (zh) 2019-04-23 2024-06-07 株式会社索思未来 声音处理装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5951630A (ja) * 1982-09-17 1984-03-26 Sony Corp ダイナミツクレンジ圧縮回路
US4630302A (en) * 1985-08-02 1986-12-16 Acousis Company Hearing aid method and apparatus
US4952867A (en) * 1986-03-12 1990-08-28 Beltone Electronics Corporation Base bias current compensator
US5165017A (en) * 1986-12-11 1992-11-17 Smith & Nephew Richards, Inc. Automatic gain control circuit in a feed forward configuration
US5144675A (en) * 1990-03-30 1992-09-01 Etymotic Research, Inc. Variable recovery time circuit for use with wide dynamic range automatic gain control for hearing aid
US5278912A (en) * 1991-06-28 1994-01-11 Resound Corporation Multiband programmable compression system

Also Published As

Publication number Publication date
JP2002507355A (ja) 2002-03-05
CA2294713A1 (en) 1999-01-07
US6049618A (en) 2000-04-11
WO1999000896A1 (en) 1999-01-07
EP0995262A1 (en) 2000-04-26
TW387199B (en) 2000-04-11
CN1254454A (zh) 2000-05-24

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 5A,6A,7A,8A E 9A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1909 DE 07/08/2007.