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. 27, 2012
Filed:
Oct. 26, 2009
Osamu Inagawa, Kanagawa, JP;
Osamu Inagawa, Kanagawa, JP;
Renesas Electronics Corporation, Kanagawa, JP;
Abstract
There is already disclosed a technique for an MB-OFDM communication system whereby an orthogonal demodulation section removes a DC offset generated in a received signal in a region where the received signal is an analog signal, but the removal of the DC offset in the analog region cannot prevent the DC offset from remaining, and therefore the DC offset needs to be effectively removed in a digital region. An offset canceling sectioncalculates an average value of amplitude of a signal which should have an average of amplitude within a predetermined time range of 0, subtracts the average value from the signal and thereby removes an offset included in the signal.