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. 18, 2009
Filed:
Sep. 28, 2005
Andreas Menkhoff, Oberhaching, DE;
Norbert Neurohr, Neuried, DE;
Andreas Menkhoff, Oberhaching, DE;
Norbert Neurohr, Neuried, DE;
Infineon Technologies AG, Munich, DE;
Abstract
A detector for a receiver generates a clock phase detection signal and a carrier phase detection signal from of a plurality of clock polyphase signals of an oversampled signal. The detector comprises a plurality of carrier phase detectors, a plurality of variance estimation units, a selection unit and an output unit. Each phase detector determines the carrier phase of a clock polyphase signal and emits a carrier phase signal corresponding to the carrier phase. Each variance estimation unit determines the variance of one of the carrier phase signals. The selection unit compares the variances of the carrier phase signals with one another and emits a selection signal as the clock phase detection signal for selection of that clock polyphase signal whose associated carrier phase has the smallest variance. The output unit emits at least one of the carrier phase signal as the carrier phase detection signal.