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:
Aug. 27, 2019
Filed:
Jun. 21, 2018
Shanghai Zhaoxin Semiconductor Co., Ltd., Shanghai, CN;
Yang Chen, Shanghai, CN;
Yongqi Zhou, Shanghai, CN;
SHANGHAI ZHAOXIN SEMICONDUCTOR CO., LTD., Shanghai, CN;
Abstract
An eye pattern generator for generating an eye pattern of an input signal is provided. The eye pattern generator includes first and second comparators and a control circuit. The first comparator receives the input signal, a clock signal, and a first voltage and compares the input signal with the first voltage according to the clock signal to generate a first comparison signal. The second comparator receives the input signal, the clock signal, and a second voltage lower than the first voltage and compares the input signal with the second voltage according to the clock signal to generate a second comparison signal. The control circuit changes at least one of a level of the first voltage and a level of the second voltage according to the first and second comparison signals to form a region boundary between an open-eye region and a closed-eye region of the eye pattern.