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:
Apr. 02, 2013
Filed:
Feb. 22, 2008
Tatsuji Ishii, Osaka, JP;
Tatsuji Ishii, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A Tu delay section () delays an analog-to-digital converted OFDM signal Sby a time corresponding to an effective symbol period Tu. A correlation signal of an output of the Tu delay section () and OFDM signal Sis obtained using a correlation calculating section (). A delay section () outputs at least one delayed correlation signal obtained by delaying a correlation signal S. Next, an adding section () performs addition of the correlation signal Sand the delayed correlation signal, and then an interval integration section () performs transfer integration over a definite interval on a result of the addition. Then, a symbol period smoothing section () smoothes a result of the transfer integration for an interval of the effective symbol period of the OFDM signal S, and then a window position detection section () calculates window position information from an output of the symbol period smoothing section ().