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:
Sep. 07, 2010
Filed:
May. 16, 2006
Applicants:
Koji Nishikawa, Kyoto, JP;
Makoto Hiraga, Kyoto, JP;
Inventors:
Koji Nishikawa, Kyoto, JP;
Makoto Hiraga, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
By inputting differential signals to transistors Trto Trand Trto Tr, an addition operation is performed on the four differential signals, and a filter operation is performed by a capacitor Cand resistors Rand R. An offset of a signal obtained as a result of an addition operation performed on the four differential signals is removed by transistors Trand Tr