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:
Nov. 01, 2011
Filed:
Sep. 14, 2006
Applicant:
Masaki Ichihara, Tokyo, JP;
Inventor:
Masaki Ichihara, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 27/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
Input average levels and output average levels of digital channel filtersandare computed in amplitude calculation circuitsand. In a gain difference calculation circuit, a gain difference of the input levels and the output levels is computed as a multiplier α so that a difference between the input levels and the output levels are eliminated or adjusted to be within a certain value. The outputs of the digital channel filtersandare multiplied by the multiplier α in multiplier unitsand. The multiplication results are outputted as corrected digital signals to a subsequent digital signal processing circuit.