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:
May. 21, 2019
Filed:
Jun. 02, 2014
Nec Corporation, Minato-ku, Tokyo, JP;
Kohei Hosokawa, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
Provided is a digital filter device including data rearrangement means for executing rearrangement of input data and outputting rearranged data, intermediate data calculation means for processing the rearranged data input at a specific time and generating intermediate data, filter output first calculation means for calculating a first output value at the specific time by use of the intermediate data, delay means for delaying the rearranged data by processing time taken in the intermediate data calculation means and the file output first calculation means, and filter output second calculation means for inputting output values from the delay means and the filter output first calculation means, calculating a second output value at a time other than the specific time, and outputting a filter output value obtained by adding up the first and second output values. Consequently, it becomes feasible to reduce a circuit scale without impairing performance of a digital filter used in nonlinear compensation and realize nonlinear compensation by an LSI.