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. 13, 2002
Filed:
Nov. 10, 1998
Applicant:
Inventors:
Junichi Aizawa, Yokohama, JP;
Mitsuru Uesugi, Yokosuka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 3/23 ;
U.S. Cl.
CPC ...
H04B 3/23 ;
Abstract
Analysis filter splits an input signal into M frequency bands. Sampling rate converter downsamples split signals at a sampling rate of 1/M times. Training processing section receives a known training signal and provides the training processing to the signal for the distortion correction. Sampling rate converter upsamples a corrected signal. Synthesis filter reconstructs upsampled signals into an original signal.