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. 05, 2003
Filed:
Dec. 28, 1999
Eric De Mey, Purasca, CH;
Johathan L. Watson, Zürich, CH;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A demodulator for angle modulated signals having a carrier frequency includes a demodulation channel provided with a local oscillator and with an channel output for supplying angle modulated output signals. A frequency error detector is coupled to the channel output for deriving a local oscillator frequency error signal. A frequency error corrector has two inputs and an output for providing the frequency error corrected angle modulated signals, one input whereof is coupled to the channel output, whereas its other input is coupled to the frequency error detector. The frequency error corrector is embodied as a complex plane rotator for providing complex angle modulated signals by complex plane rotation of a representation of the angle modulated signals and the local oscillator frequency error signals. Advantageously an easy implementable demodulator for Soft Decision Information demodulation schemes is provided.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile