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. 26, 2016
Filed:
Jul. 14, 2015
Global Unichip Corporation, Hsinchu, TW;
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;
GLOBAL UNICHIP CORPORATION, Hsinchu, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD., Hsin-Chu, TW;
Abstract
A clock data recovery system is provided. A CTLE generates a first equalized signal. An adder superposes the first equalized signal and a feedback equalization signal and generates a superposed signal. A first error slicer slices the superposed signal according to a clock signal and a reference voltage and generates a first error signal. A second error slicer slices the superposed signal according to the clock signal and a second slicing voltage. A data slicer slices the superposed signal according to the clock signal and a third slicing voltage and generates a data signal. A CDR circuit generates the clock signal. An adaptive filter receives the data signal and the first error signal, and generates the reference voltage and a DFE coefficient set. A DFE receives the data signal and the DFE coefficient set, and generates the feedback equalization signal.