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. 10, 2018
Filed:
Mar. 04, 2015
Mitsubishi Electric Corporation, Tokyo, JP;
Kenichi Tajima, Tokyo, JP;
Kazuhide Higuchi, Tokyo, JP;
Morishige Hieda, Tokyo, JP;
Takuya Suzuki, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
Filter circuitry is constituted by transversal filters which are connected in parallel to each other. The transversal filters change amplitude and a phase of an input digital signal X[n·T] and output different digital signals X[n·T], X[n·T], and X[n·T] as respective resulting digital signals whose amplitude and phase have been changed. A phase frequency computer computes a phase θ[n·T] and a frequency f[n·T] of the input digital signal X[n·T] by performing phase computation and frequency computation using the digital signals X[n·T], X[n·T], and X[n·T] output by the transversal filters.