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:
Dec. 25, 2012
Filed:
Dec. 30, 2010
Bin LI, Chengdu, CN;
Guosheng Wu, Chengdu, CN;
Bin Li, Chengdu, CN;
Guosheng Wu, Chengdu, CN;
IPGoal Microelectronics (SiChuan) Co., Ltd., Chengdu, Sichuan Province, CN;
Abstract
A dynamic high-speed comparative latch comprises a pre-amplifier unit for enlarging input differential signals, a regenerating latch unit for latching outputted differential signals from the pre-amplifier unit by using a positive feedback, specifically, converting the output of the pre-amplifier unit into a latched result at a first state of a clock cycle, and then retaining the latched result and simultaneously resetting relevant nodes at a second state opposite to the first state of the clock cycle, and a latch unit for outputting the effective outputted value of the regenerating latch unit when the regenerating latch unit being in a retaining state. The pre-amplifier unit is connected with the regenerating latch unit, and the regenerating latch unit is connected with the latch unit. The pre-amplifier unit comprises only one input clock signal. The present invention has a simple structure, and ensures the correctness of the output result of the latch.