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. 29, 2003
Filed:
Sep. 30, 1998
Jeffrey Paul Grundvig, Macungie, PA (US);
Yun Xiang Yuan, Emmaus, PA (US);
Agere Systems Inc., Allentown, PA (US);
Abstract
A timing recovery circuit and method which determines whether a sample point in a generated bit sequence is early or late based on binary logic which is already available used in generating a bit sequence by comparing energy magnitudes of adjacent bits. The waveform of an input symbol is correlated against reference waveforms. When the incoming waveform does not perfectly match a reference waveform, symbol energy less than maximum is output indicating that the timing of the sampling points is either early or late. Symbol energy magnitudes between adjacent bits are then compared. Using the bit pattern of the generated bit sequence and the results of comparisons of energy magnitudes of adjacent bits, it is determined whether the timing of the sampling points is early or whether it is late.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile