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:
Mar. 30, 2010
Filed:
Dec. 05, 2005
Yusaku Okamura, Tokyo, JP;
Yusaku Okamura, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A bit-power distribution ratio calculation unit measures several times an SNR of periodic noise occurring on a communication line to calculate several times, according to the measurement results of the SNR thus measured, a bit distribution ratio to be assigned to each carrier for data transmission for each measurement result. The calculation unit compares the calculated bit distribution ratios with each other to detect a minimum bit value of each carrier to calculate, according to the detected minimum bit values of the respective carriers, a minimum bit distribution ratio including the minimum bit value of each carrier. The calculation unit delivers the minimum bit distribution ratio to a demapping unit and a mapping unit, which conduct data transmission using the minimum bit distribution ratio. Therefore, a multicarrier transmission device can efficiently conduct multicarrier transmission even at occurrence of non-periodic noise.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile