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:
Apr. 01, 2014
Filed:
Jan. 17, 2013
Renesas Electronics Corporation, Kawasaki, JP;
Tatsuji Matsuura, Kawasaki, JP;
Hideo Nakane, Kawasaki, JP;
Masumi Kasahara, Kawasaki, JP;
Ryuichi Ujiie, Kawasaki, JP;
Keisuke Kimura, Kawasaki, JP;
Oshima Takashi, Moriya, JP;
Renesas Electronics Corporation, Kawasaki-shi, Kanagawa, JP;
Abstract
A semiconductor integrated circuit device having A/D converters for converting, by means of digital correction processing, analog input signals into digital signals is reduced in area. The semiconductor integrated circuit device has a first A/D converter and a second A/D converter. In a first mode, a first test signal is inputted to both the first and second A/D converters, and a first correction coefficient for the first A/D converter and a second correction coefficient for the second A/D converter are calculated. In a second mode, the first A/D converter converts a first analog signal into a first digital signal by subjecting the first analog signal to a first digital correction processing and the second A/D converter converts a second analog signal into a second digital signal by subjecting the second analog signal to a second digital correction processing.