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. 07, 2012
Filed:
Jul. 17, 2009
Applicant:
Hiroaki Sudo, Yokohama, JP;
Inventor:
Hiroaki Sudo, Yokohama, JP;
Assignee:
Panasonic Corperation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 11/00 (2006.01); H04J 1/16 (2006.01); H04B 3/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
An OFDM communication apparatus includes a determining section determine a number of known signals for transmission path estimation to be inserted in a transmit signal based on channel quality with respect to a communicating party, and a generating section performs inverse Fourier transform processing on an information signal and the number of known signals for transmission path estimation determined by the determining section and generates a transmit signal for the communicating party. The apparatus achieves both an improvement in demodulated signal error rate characteristics and an improvement in information signal transmission efficiency.