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:
Aug. 25, 2015
Filed:
Jun. 14, 2012
Takashi Matsumoto, Kanagawa, JP;
Toshio Kumamoto, Kanagawa, JP;
Takashi Okuda, Kanagawa, JP;
RENESAS ELECTRONICS CORPORATION, Kanagawa, JP;
Abstract
A delta-sigma A/D converter having plural input channels comprises a first quantizer which quantizes and outputs a received signal; a first D/A converter which converts an output signal of the first quantizer into an analog signal, and outputs the converted analog signal; a first operation unit which outputs a signal indicative of a difference of the first analog input signal and an output signal of the first D/A converter; a first integrator which integrates an output signal of the first operation unit and outputs the integrated signal; a first dither circuit which generates a first dither signal; and a second operation unit which adds the first dither signal to the output signal of the first integrator and outputs the added signal to the first quantizer.