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. 24, 2018
Filed:
Sep. 11, 2014
Applicant:
Nec Corporation, Minato-ku, Tokyo, JP;
Inventor:
Atsufumi Shibayama, Tokyo, JP;
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/14 (2006.01); G06F 1/32 (2006.01);
U.S. Cl.
CPC ...
G06F 1/3234 (2013.01); G06F 1/32 (2013.01); G06F 17/142 (2013.01);
Abstract
A digital filtering device is provided that makes it possible to reduce the size and power consumption of circuitry for filtering using FFT and IFFT. The digital filtering device includes a first filtering unit for receiving first data in a first sequence, performing a first filtering process including a fast Fourier transformation process and an inverse fast Fourier transformation process on the first data, and outputting second data in the first sequence.