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:
Jul. 30, 2013
Filed:
May. 11, 2010
Henning Haugaard Andersen, Birkerod, DK;
Soren Kilsgaard, Smorum, DK;
Henning Haugaard Andersen, Birkerod, DK;
Soren Kilsgaard, Smorum, DK;
Widex A/S, Lynge, DK;
Abstract
A hearing aid comprises a wireless Frequency-Shift-Keying (FSK) receiver. The receiver has an antenna receiving an FSK signal, a first amplifier stage amplifying the FSK signal, a limiter stage limiting the amplified FSK signal, a plurality of parallel phase detection stages and a lookup table block. Each phase detection stage comprises a local oscillator, a mixer stage, a filter stage, and a comparator stage. The output of each of the respective comparator stages is provided to the input of the look-up table block. The invention also relates to a method for processing a wireless FSK signal for providing a signal for a hearing aid, and a wireless FSK receiver.