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. 10, 2007
Filed:
Aug. 18, 2000
Edgar Wursthorn, Bad Dürrheim, DE;
Edgar Wursthorn, Bad Dürrheim, DE;
Thomson Licensing, Boulogne-Billancourt, FR;
Abstract
A phased-locked loop phase detector for digital input signals in which digital summed value for a particular number of bits is equal to zero. Sampled and digitized data comprising a delay stage for delaying the data signal by a one or more sampling clock period is supplied to the phase detector as an input signal. The delayed data signal and the undelayed data signal are then supplied to a subtraction stage. The difference between the two input values is formed in this subtraction stage. The processing stage assigns one of a plurality of possible values to the respective differential value. The full differential value range is subdivided in a number of sub-ranges corresponding to the plurality of possible values. All differential values in one sub-range are assigned the same output value. The output of the subtraction stage is supplied to a filter/control stage.