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:
Oct. 30, 2007
Filed:
Feb. 03, 2005
Shigeto Kobayashi, Gifu, JP;
Kuniyuki Tani, Ogaki, JP;
Atsushi Wada, Ogaki, JP;
Noriaki Kojima, Ogaki, JP;
Shigeto Kobayashi, Gifu, JP;
Kuniyuki Tani, Ogaki, JP;
Atsushi Wada, Ogaki, JP;
Noriaki Kojima, Ogaki, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
An input analog signal is fed to an amplifier circuit and an AD converter circuit. The AD converter circuit converts the input analog signal into a digital value of a predetermined number of bits, and outputs the digital value to an encoder (not shown) A DA converter circuit converts the digital value of a predetermined number of bits output from the AD converter circuit into an analog signal. The amplifier circuit samples and amplifies the input analog signal by a factor of α (greater than 1). A subtracter circuit subtracts an output of the DA converter circuit amplified by a factor of α from an output of the amplifier circuit.