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:
Jul. 25, 2006
Filed:
Apr. 23, 2004
Hirokazu Mori, Kawasaki, JP;
Yusaku Tada, Sagamihara, JP;
Hirokazu Mori, Kawasaki, JP;
Yusaku Tada, Sagamihara, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
While a switch SWis connected to 'a'-terminal side, offset of a differential output voltage 'A−' of a D/A converter() is held in a comparator, and is reflected to a reference voltage. Thereafter, the switch SWis switched to a “b”-terminal side, and offset of a differential output voltage “A+” of the D/A converter() is measured by the comparator. An error signal is outputted to a counterso as to count up the counter. Such an operation is repeatedly carried out in which the count value is added to 1.7 V and then the added count value is inputted into the D/A converter(), and such a count value latched in a latch at timing when the error signal is inverted is defined as an offset correction value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile