CA2381516A1 - Digital hearing aid system - Google Patents

Digital hearing aid system Download PDF

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Publication number
CA2381516A1
CA2381516A1 CA 2381516 CA2381516A CA2381516A1 CA 2381516 A1 CA2381516 A1 CA 2381516A1 CA 2381516 CA2381516 CA 2381516 CA 2381516 A CA2381516 A CA 2381516A CA 2381516 A1 CA2381516 A1 CA 2381516A1
Authority
CA
Canada
Prior art keywords
signal
hearing aid
microphone
digital hearing
acoustical
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.)
Granted
Application number
CA 2381516
Other languages
French (fr)
Other versions
CA2381516C (en
Inventor
Stephen Wade Armstrong
Frederick Edward Sykes
David Richard Brown
James G. Ryan
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.)
Semtech Canada Corp
Original Assignee
Gennum Corp
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 Gennum Corp filed Critical Gennum Corp
Priority to CA2582648A priority Critical patent/CA2582648C/en
Publication of CA2381516A1 publication Critical patent/CA2381516A1/en
Application granted granted Critical
Publication of CA2381516C publication Critical patent/CA2381516C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

A digital hearing aid is provided that includes front and rear microphones, a sound processor, and a speaker. Embodiments of the digital hearing aid include an occlusion subsystem, and a directional processor and headroom expander. The front microphone receives a front microphone acoustical signal and generates a front microphone analog signal. The rear microphone receives a rear microphone acoustical signal and generates a rear microphone analog signal. The front and rear microphone analog signals are converted into the digital domain, and at least the front microphone signal is coupled to the sound processor. The sound processor selectively modifies the signal characteristics and generates a processed signal. The processed signal is coupled to the speaker which converts the signal to an acoustical hearing aid output signal that is directed into the ear canal of the digital hearing aid user. The occlusion sub- system compensates for amplification of the digital hearing aid user's own voice within the ear canal. The directional processor and headroom expander optimizes the gain applied to the acoustical signals received by the digital hearing aid and combine the amplified signals into a directionally-sensitive response.
CA002381516A 2001-04-12 2002-04-11 Digital hearing aid system Expired - Lifetime CA2381516C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2582648A CA2582648C (en) 2001-04-12 2002-04-11 Digital hearing aid system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28321001P 2001-04-12 2001-04-12
US60/283,210 2001-04-12

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2582648A Division CA2582648C (en) 2001-04-12 2002-04-11 Digital hearing aid system

Publications (2)

Publication Number Publication Date
CA2381516A1 true CA2381516A1 (en) 2002-10-12
CA2381516C CA2381516C (en) 2007-07-03

Family

ID=23085017

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002381516A Expired - Lifetime CA2381516C (en) 2001-04-12 2002-04-11 Digital hearing aid system

Country Status (1)

Country Link
CA (1) CA2381516C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006037156A1 (en) * 2004-10-01 2006-04-13 Hear Works Pty Ltd Acoustically transparent occlusion reduction system and method
AU2005291830B2 (en) * 2004-10-01 2010-03-18 Sivantos Pte. Ltd. Acoustically transparent occlusion reduction system and method
CN109842835A (en) * 2019-04-18 2019-06-04 青海柏马教育科技有限公司 Self monitor speaker of one kind and its control method
CN113658579A (en) * 2021-09-18 2021-11-16 重庆紫光华山智安科技有限公司 Audio signal processing method and device, electronic equipment and readable storage medium

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006037156A1 (en) * 2004-10-01 2006-04-13 Hear Works Pty Ltd Acoustically transparent occlusion reduction system and method
AU2005291830B2 (en) * 2004-10-01 2010-03-18 Sivantos Pte. Ltd. Acoustically transparent occlusion reduction system and method
US8116489B2 (en) 2004-10-01 2012-02-14 Hearworks Pty Ltd Accoustically transparent occlusion reduction system and method
CN109842835A (en) * 2019-04-18 2019-06-04 青海柏马教育科技有限公司 Self monitor speaker of one kind and its control method
CN113658579A (en) * 2021-09-18 2021-11-16 重庆紫光华山智安科技有限公司 Audio signal processing method and device, electronic equipment and readable storage medium
CN113658579B (en) * 2021-09-18 2024-01-30 重庆紫光华山智安科技有限公司 Audio signal processing method, device, electronic equipment and readable storage medium

Also Published As

Publication number Publication date
CA2381516C (en) 2007-07-03

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MKEX Expiry

Effective date: 20220411