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. 01, 2008
Filed:
Mar. 23, 2005
Shinsuke Moriai, Inuyama, JP;
Shinsuke Moriai, Inuyama, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A second phase rotation unit rotates a signal equalized by an equalizer by a phase error detected by a second phase error detection unit. A decision unit partitions a phase plane into a plurality of sub-areas in accordance with phases to which CCK modulated signals are assigned. The decision unit identifies a sub-area corresponding to an output signal from the second phase rotation unit, and thereby converts the output signal from the second phase rotation unit into a value corresponding to the identified sub-area. An FWT transform unit subjects the value resulting from conversion in the decision unit to FWT computation so as to output a Walsh transform value FWT. A maximum value searching unit receives 64 Walsh transform values FWT and selects one Walsh transform value by referring to the magnitude thereof.