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:
Mar. 07, 2000
Filed:
Apr. 02, 1998
John R Francis, Burlington, CA;
Atul Gupta, Burlington, CA;
Gennum Corporation, Burlington, CA;
Abstract
An improved phase detector for detecting the difference between an information signal and a clock signal is provided. The information signal is divided into a plurality of N divided signals, the data rate of each divided signal being the data rate of the information signal divided by N. A plurality of N variable width difference pulse signals are generated each being responsive to the phase difference between a divided signal and the clock signal. One or more fixed width reference pulse signals having a width proportional to one-half clock period are also generated. A phase error signal is then provided in response to the N difference pulse signals and the one or more reference pulse signals. Preferably, N is equal to 2.sup.M, where M is a positive integer greater than or equal to one.