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:
Nov. 06, 2007
Filed:
Feb. 12, 2004
Torsten Niederdränk, Erlangen, DE;
Gerhard Pfannenmüller, Oberasbach, DE;
Gottfried Rückerl, Nürnberg, DE;
Torsten Niederdränk, Erlangen, DE;
Gerhard Pfannenmüller, Oberasbach, DE;
Gottfried Rückerl, Nürnberg, DE;
Siemens Audiologische Technik GmbH, Erlangen, DE;
Abstract
The communication device in a hearing aid needs to be optimized with respect to spatial requirements and power consumption. To this end, provision is made for an inductor in an oscillator circuit to be used simultaneously as an antenna. Besides reducing the number of components, this also reduces the power consumption. Further optimization in terms of energy can be achieved by virtue of a comparator being used to actuate a controllable current source such that energy is fed into the oscillator circuit only during a half-cycle.