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:
Jun. 01, 2010
Filed:
Nov. 08, 2006
Ryota Kimura, Tokyo, JP;
Hiroshi Harada, Tokyo, JP;
Ryuhei Funada, Tokyo, JP;
Abstract
Signal decoding apparatus, signal decoding method, program, and information record medium are provided and can accomplish not only high-speed and high-capacity communication, but high-accuracy decoding. An initial channel estimation sectionestimates an initial channel with a pilot symbol added at the beginning of each packet. After a replica of a transmission symbol is generated, for a reception signal vector, CCI components for L transmission antennas are generated. A CCI cancellerremoves the CCI components from the reception signal vector. After the reception symbol vector from which the CCI components had been removed has been obtained, a division deviceobtains an instantaneous estimation value. An update condition determination sectiondetects deterioration of a channel response accuracy based on a threshold value. An instantaneous estimation value whose SNR has been determined to be insufficient is discarded. An averaging circuitoutputs a channel response estimation matrix at time t+1 obtained by an averaging process and supplies the matrix to a symbol decoding section