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. 28, 2011
Filed:
Nov. 19, 2007
Yasunobu Sugiura, Yokohama, JP;
Manabu Sawada, Yokohama, JP;
Yasunobu Sugiura, Yokohama, JP;
Manabu Sawada, Yokohama, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A soft decision value correction method can detect interference occurring in a desired wave and correct a soft decision value where a received power difference between the desired wave and an interference wave is small. A receiver and a program capable of performing the soft decision value correction method are provided. In the receiver an EVM calculator sets a detection distance for a primary modulation symbol of the first subcarrier in the first OFDM symbol as a reference, and calculates an evaluation value ΔEthat is an index of a distance between the primary modulation symbol of the reception signal and the reference. When the evaluation value ΔEis greater than or equal to a normal threshold, a weighting controller infers that interference occurred, and multiplies a soft decision value Wby a weighting factor to calculate a corrected soft decision value V.