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. 01, 2014
Filed:
Mar. 17, 2010
Jun Ido, Tokyo, JP;
Naotoshi Maeda, Tokyo, JP;
Jun Ido, Tokyo, JP;
Naotoshi Maeda, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A channel characteristic obtained from a pilot signal is stored for a prescribed number of symbols and a Fourier transform is performed (), the power of each Doppler frequency component is calculated (), filtering is performed in the time direction for each Doppler frequency component (), noise components are masked (), power changes between mutually adjacent Doppler frequency components are emphasized (), and motion information is generated by comparison with a predetermined decision threshold (). Velocity detection that detects velocity of motion from a received signal with high precision in order to improve mobile reception performance by optimizing demodulation operations according to velocity of motion thereby becomes possible.