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:
Apr. 11, 2000
Filed:
Sep. 11, 1997
Applicant:
Inventors:
Ullrich Sigwanz, Erlangen, DE;
Fred Zoels, Altenthann, DE;
Assignee:
Siemens Audiologische Technik GmbH, Erlangen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R / ;
U.S. Cl.
CPC ...
381312 ; 381321 ; 4552342 ;
Abstract
A method and circuit for signal amplification in digital hearing aids, in particular in hearing aids with automatic gain control (AGC). In the method there first ensues a digitization of an input signal from the signal path of the hearing aid, then a rectification of sampled values of the digitized input signal. Next a determination of gain values is allocated to the sampled values, after which there is a smoothing of the gain values. Finally, after previous allocation of the smoothed gain values to the sampled values, allocated values, reconverted to analog form, are outputted into the signal path of the hearing aid.