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. 25, 2008
Filed:
Jul. 24, 2006
Wen-chi Wang, Yun-Lin Hsien, TW;
Chang-shun Liu, Taipei, TW;
Chao-cheng Lee, Hsin-Chu, TW;
Jui-yuan Tsai, Tai-Nan, TW;
Wen-Chi Wang, Yun-Lin Hsien, TW;
Chang-Shun Liu, Taipei, TW;
Chao-Cheng Lee, Hsin-Chu, TW;
Jui-Yuan Tsai, Tai-Nan, TW;
Realtek Semiconductor Corp., HsinChu, TW;
Abstract
A reference voltage generating circuit includes a first capacitor having a first end and a second end; a second capacitor having a third end and a fourth end; a first switch for selectively coupling a predetermined voltage to the first end of the first capacitor; a second switch for selectively coupling the third end of the second capacitor to the first end of the first capacitor; a third switch for selectively coupling the first end of the first capacitor to a reference voltage level; and a fourth switch for selectively coupling the second end of the first capacitor to a reference voltage level; wherein the first capacitor samples the predetermined voltage in a first stage and re-distributes charges to the second capacitor in a second stage.