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:
Jan. 17, 2017
Filed:
Sep. 25, 2012
Megachips Corporation, Osaka-shi, JP;
Handa Chen, Osaka, JP;
MegaChips Corporation, Osaka-shi, JP;
Abstract
A preamble signal is an OFDM signal, and is a real-part signal obtained by removing an imaginary-part signal from a signal in the time domain that is generated by an IFFT process being performed on a signal in the frequency domain obtained by assigning preamble data to subcarriers in accordance with a predetermined arrangement pattern. The predetermined arrangement pattern indicates that preamble data is assigned to any of subcarriers given numbers equal to or less than N/2−1 and the preamble data is not assigned to subcarriers given numbers more than N/2−1, where a plurality of subcarriers are numbered by integers from 0 to N−1 (N is an integer) in ascending order with respect to the center frequency of each subcarrier.