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. 01, 2011
Filed:
Feb. 10, 2009
Hiroki Mouri, Osaka, JP;
Kouichi Nagano, Osaka, JP;
Hiroki Mouri, Osaka, JP;
Kouichi Nagano, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A plurality of comparators (CMP, CMP, . . . ) respectively correspond to a plurality of reference voltages (V, V, . . . ), and each compares a reference voltage corresponding to the comparator with a signal level of an analog signal (Sin). An encoder () generates a digital signal (De) corresponding to the analog signal (Sin) based on outputs (S, S, . . . ) of the plurality of comparators. A pattern detection circuit () detects that a temporal change of an output (S) of a first comparator matches a predetermined first particular pattern. A control circuit () corrects a digital value of the digital signal (De) in response to detection by the pattern detection circuit. The temporal change of the output (S) of the first comparator becomes the first particular pattern when an amplitude of the analog signal (Sin) is smaller than a predetermined amplitude.