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:
Mar. 24, 2015
Filed:
Sep. 09, 2013
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Tomohiko Sugimoto, Kanagawa, JP;
Hirotomo Ishii, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to the present invention, a successive approximation type analog-digital converter includes: a comparator outputting a result of comparing an analog signal and a reference voltage; a register storing a digital value corresponding to the result of comparison and outputting a digital signal; a detection unit detecting whether the comparator is in a stable state or not for each bit; and a bit determination unit storing, if the comparator is not stable, as a bit value of a bit which is one bit lower-order than a corresponding detection bit, a value obtained by inverting a final determined bit value of the detection bit in the register instead of the comparison result of the comparator.