Multiplex communications – Diagnostic testing
Reexamination Certificate
2005-11-16
2010-12-28
Harper, Kevin C (Department: 2462)
Multiplex communications
Diagnostic testing
C370S249000
Reexamination Certificate
active
07860014
ABSTRACT:
A ranging system is disclosed which measures a distance between terminals operating on a multi-carrier transmission system. The ranging system includes a frequency domain data processing device that acquires impulse responses by subjecting data from transmitted and/or received packets to fast discrete Fourier transform for conversion into frequency domain data subject to a predetermined process and by applying a spectrum estimation algorithm to the processed frequency domain data.
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Harper Kevin C
Lerner David Littenberg Krumholz & Mentlik LLP
Sony Corporation
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