The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 01, 2000
Filed:
Dec. 17, 1997
Applicant:
Inventor:
Sen M Kuo, DeKalb, IL (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R / ;
U.S. Cl.
CPC ...
381312 ; 381 7111 ; 381317 ; 381318 ;
Abstract
A digital hearing aid (10) is provided that includes a microphone (12), a control and modeling circuitry (18), and a receiver (20). The microphone (12) receives an input sound signal x(t) and generates a digital input signal x(n) in response. The control and modeling circuitry (18) filters and amplifies the digital input signal x(n) and performs feedback neutralization and feedback path modeling to generate a digital output signal y(n). The receiver (20) receives the digital output signal y(n) and generates an output sound signal y(t) in response.