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:
Dec. 17, 2013
Filed:
Mar. 15, 2010
Masayuki Umejima, Tokyo, JP;
Katsuhiro Onozuka, Tokyo, JP;
Norihiro Ichimaru, Tokyo, JP;
Shogo Kawata, Kanagawa, JP;
Masayuki Umejima, Tokyo, JP;
Katsuhiro Onozuka, Tokyo, JP;
Norihiro Ichimaru, Tokyo, JP;
Shogo Kawata, Kanagawa, JP;
Felica Networks, Inc., Tokyo, JP;
Abstract
An arithmetic circuit includes: a detection unit that detects a code error for plural signals respectively modulated by different modulation methods and encoded by a predetermined encoding method; a measurement unit that measures a number of times of signal variations at a predetermined frequency or less generated in the plural signals in a period from detection of the code error in the detection unit to first detection of predetermined data contained in the plural signals with respect to each of the plural signals; and a selection unit that selects one signal from the plural signals based on a measurement result of the measurement unit.