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. 18, 2019
Filed:
Aug. 03, 2018
Faraday Technology Corp., Hsinchu, TW;
Ming-Chi Lin, Hsinchu, TW;
Faraday Technology Corp., Hsin-Chu, TW;
Abstract
A receiver and a common-mode voltage calibration method thereof are provided. The receiver includes sensing circuits, a phase comparator, and a self-calibration circuit. The phase comparator compares phase relationships of the latch results at the output terminals of the sensing circuits during a testing period to produce a phase comparison result. During the testing period, the self-calibration circuit provides the same differential signal to the input terminals of these sensing circuits, and sets common-mode levels at the input terminals of these sensing circuits to be different from one another. The self-calibration circuit determines a calibrated common-mode level based on the phase comparison result. The self-calibration circuit sets the common-mode levels at the input terminals of these sensing circuits to be equal to the calibrated common-mode level during a normal operation period.