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:
Apr. 13, 2010
Filed:
Sep. 11, 2007
Applicant:
Shian-ru Lin, Hsinchu, TW;
Inventor:
Shian-Ru Lin, Hsinchu, TW;
Assignee:
Realtek Semiconductor Corp., Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03B 1/00 (2006.01); H03K 5/00 (2006.01); H04B 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A filter circuit is disclosed which comprises a differential amplifier and a switch-capacitor circuit. The invention attains the goals of reducing the power consumption and the circuit size by sharing an amplifier with other related circuits to reduce the number of amplifiers.