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. 29, 2014
Filed:
Jan. 16, 2009
Satoshi Tsukamoto, Osaka, JP;
Noriaki Saito, Tokyo, JP;
Katsuaki Abe, Kanagawa, JP;
Kentaro Miyano, Osaka, JP;
Yoshifumi Hosokawa, Osaka, JP;
Yasuyuki Naito, Osaka, JP;
Satoshi Tsukamoto, Osaka, JP;
Noriaki Saito, Tokyo, JP;
Katsuaki Abe, Kanagawa, JP;
Kentaro Miyano, Osaka, JP;
Yoshifumi Hosokawa, Osaka, JP;
Yasuyuki Naito, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A sampling filter device wherein the filter characteristic is variable without using a control signal of a complicated waveform is provided. A sampling filter devicehas integration capacitorsand, an integration time adjustment section, and a plurality of switches, and. Input current is integrated in different time duration with one clock and is stored in the integration capacitorsandand charges stored in the integration capacitor from several clocks before to one clock before are added and the result is output. When charge is stored in the integration capacitorsandwith each clock, the integration time duration is changed, whereby it is made possible to weight and add output charge and the filter characteristic changes.