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. 19, 2013
Filed:
Sep. 16, 2011
Hiroyoshi Ishikawa, Kawasaki, JP;
Nobukazu Fudaba, Kawasaki, JP;
Kazuo Nagatani, Kawasaki, JP;
Yasuyuki Oishi, Kawasaki, JP;
Hiroyoshi Ishikawa, Kawasaki, JP;
Nobukazu Fudaba, Kawasaki, JP;
Kazuo Nagatani, Kawasaki, JP;
Yasuyuki Oishi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A transmission apparatus includes an analog digital converter that performs sampling on a demodulated signal obtained by demodulating a part of an output signal, which is produced by amplifying a modulated signal of a baseband signal including a plurality of signals having frequencies separated from each other, at a sampling frequency lower than a frequency of a given intermodulation distortion component and converting the demodulated signal into a digital signal, a detection section that detects an aliasing component of the given intermodulation distortion component produced by the conversion of the analog digital converter, and a distortion compensation section that compensates an input signal to be modulated for the given intermodulation distortion component in accordance with the detected aliasing component.