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:
Jun. 27, 2006
Filed:
Sep. 14, 2001
Hiroyuki Rokugawa, Kawasaki, JP;
Tadashi Ikeuchi, Kawasaki, JP;
Daisuke Yamazaki, Kawasaki, JP;
Masaaki Kawai, Kawasaki, JP;
Hiroyuki Rokugawa, Kawasaki, JP;
Tadashi Ikeuchi, Kawasaki, JP;
Daisuke Yamazaki, Kawasaki, JP;
Masaaki Kawai, Kawasaki, JP;
Fuijtsu Limited, Kawasaki, JP;
Abstract
In a data decision circuit: a clock generation unit generates a clock signal based on a phase difference signal so that the clock signal has an optimum phase with respect to a phase of an input data signal; a data determination unit determines data values carried by the input data signal, by using the clock signal; a phase-difference detection unit detects a rising-side phase difference and a falling-side phase difference, where the rising-side phase difference is a phase difference between a rising of the input data signal and a next transition in the clock signal, and the falling-side phase difference is a phase difference between the transition and a next falling of the input data signal; and a phase-difference-signal generation unit generates the phase difference signal so as to represent a difference between the rising-side phase difference and the falling-side phase difference.