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. 27, 2019
Filed:
May. 09, 2013
Ntt Electronics Corporation, Yokohama-shi, Kanagawa, JP;
Yuichiro Koike, Kanagawa, JP;
Yasuhiro Yamada, Kanagawa, JP;
NTT ELECTRONICS CORPORATION, Yokohama, JP;
Abstract
A position coordinate difference computing unit (to) calculates position coordinate differences between position coordinates of the output digital signals and position coordinates of the input digital signals adjacent to the position coordinates. An FIR coefficient memory (to) stores FIR coefficients of an FIR-LPF and outputs FIR coefficients corresponding to position coordinate differences between a fixed number of the output digital signals adjacent to the position coordinates of the output digital signals and the output digital signals. A control unit () supplies a group of the FIR coefficients and a group of the input digital signals corresponding to the respective position coordinate differences to the parallel FIR calculator () in predetermined order when the position coordinate differences corresponding to two or more different output digital signals are concurrently computed. The parallel FIR calculator () performs an FIR-LPF interpolating calculation by using those to obtain the output digital signals.