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:
Oct. 28, 2003
Filed:
Nov. 19, 2002
Shen-Iuan Liu, Hsinchu, TW;
Chien-Hung Kuo, Hsinchu, TW;
Abstract
A nested chopper circuit includes a first chopper section, which is coupled to input terminals and is controlled by a pair of non-overlapping clocks, and a second chopper section, which is coupled to the first chopper section and is controlled by a pair of chopper clocks. The pair of non-overlapping clocks is a multiple of the pair of chopper clocks, and the non-overlapping clocks are configured to invert on a period continuously. When the pair of chopper clocks (&phgr; and &phgr; ) controls switches S , S , S , and S of the second section, these switches follow the following logic when operated in conjunction with the pair of non-overlapping clocks (&phgr;A and &phgr;B): switches S & S : &phgr;A·&phgr; +&phgr;B·&phgr; ; and switches S & S : &phgr;A·&phgr; +&phgr;B·&phgr; . A method for chopping an analog input signal for sampling also is described.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile