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:
Nov. 20, 2001
Filed:
Dec. 28, 2000
Her-Y Shih, Taichung, TW;
Topic Semiconductor Corp., Hsinchu, TW;
Abstract
A self-calibrating circuit of a high speed comparator, having a first negative phase logic switch, a second negative logic switch, a first positive phase logic switch, a second positive phase logic switch, a third negative phase logic switch, a fourth negative phase logic switch, a third positive phase logic switch, a fourth positive phase logic switch, a fifth positive phase logic switch, a first current source circuit, a second current source circuit and a control logic circuit. Using the first and the second current source circuits, a self-calibration can be performed while the high speed comparator is just turned on, so that the input offset voltage of the high speed comparator can be eliminated.