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:
Jul. 31, 2007
Filed:
Aug. 21, 2001
Sadaki Futagi, Ishikawa-gun, JP;
Mitsuru Uesugi, Yokosuka, JP;
Tadashi Matsumoto, Ebina, JP;
Panasonic Mobile Communications Co., Ltd., Kanagawa, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
Noise generating sectiongenerates noise data of a white Gaussian noise, and noise adding sectionadds received data and the noise data. Channel estimating sectionperforms channel estimation using the added data output from noise adding section. At this point, when a level of a preceding signal is equal to or less than that of the noise data, channel estimating sectionis not capable of detecting the preceding signal. Accordingly, in the case where a received level of a preceding signal is extremely lower than that of a delayed signal and a noise level is further lower than the received level of the preceding signal, it is possible to perform pre-equalization using the delayed signal as a desired signal, whereby it is possible to maintain the reception characteristic of a communication partner.