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:
Mar. 29, 2011
Filed:
May. 21, 2009
Atsushi Honda, Kawasaki, JP;
Kaoru Yokoo, Kawasaki, JP;
Yoji Ohashi, Kawasaki, JP;
Mitsuhiro Azuma, Kawasaki, JP;
Atsushi Honda, Kawasaki, JP;
Kaoru Yokoo, Kawasaki, JP;
Yoji Ohashi, Kawasaki, JP;
Mitsuhiro Azuma, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A disclosed group delay characteristic correcting device corrects group delay characteristics of an analog low-pass filter used to remove aliasing of a digital-analog converter or an analog-digital converter. The group delay characteristic correcting device includes a digital signal processing unit configured to have an all-pass phase circuit at a stage previous to the digital-analog converter or at a stage subsequent to the analog-digital converter so as to correct the group delay characteristics of the analog low-pass filter.