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. 07, 2007
Filed:
Mar. 11, 2004
Georg-erwin Arndt, Obermichelbach, DE;
Joachim Eggers, Erlangen, DE;
Thomas Hanses, Erlangen, DE;
Torsten Niederdränk, Erlangen, DE;
Hartmut Ritter, Neunkirchen am Brand, DE;
Gunter Sauer, Erlangen, DE;
Georg-Erwin Arndt, Obermichelbach, DE;
Joachim Eggers, Erlangen, DE;
Thomas Hanses, Erlangen, DE;
Torsten Niederdränk, Erlangen, DE;
Hartmut Ritter, Neunkirchen am Brand, DE;
Gunter Sauer, Erlangen, DE;
Siemens Audiologische Technik GmbH, Erlangen, DE;
Abstract
The microphones used in hearing devices normally possess different characteristic lines that are to be adapted to one another. For this purpose, the amplitude of an output signal of a first microphone and the amplitude of an output signal of a second microphone are measured. The output signal of the first microphone is subsequently filtered dependent on both measured amplitudes, such that the difference between the two output signals is reduced. One of the two microphones hereby serves as a reference, and an absolute normalization can be foregone.