Multiplex communications – Generalized orthogonal or special mathematical techniques – Fourier transform
Reexamination Certificate
2002-10-11
2008-09-09
Nguyen, Steven H. D. (Department: 2619)
Multiplex communications
Generalized orthogonal or special mathematical techniques
Fourier transform
C375S346000, C455S063100, C342S378000
Reexamination Certificate
active
07423961
ABSTRACT:
A correlator detects arriving timings of a desired wave and an interfering wave from a signal transmitted by the OFDM scheme. A reception response vector estimator estimates a first response vector for a signal arriving within a guard interval section from the head arriving wave and a second response vector for a signal arriving after the guard interval section from the head arriving wave out of the desired wave, and also a third response vector for a signal arriving within the guard interval section from the head arriving wave and a fourth response vector for a signal arriving after the guard interval section from the head arriving wave out of the interfering wave. An adaptive array block provides a weight vector based on a result of Fourier transform on the first to fourth response vectors.
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Doi Yoshiharu
Ogawa Yasutaka
Ohgane Takeo
McDermott Will & Emery LLP
National University Corporation Hokkaido University
Nguyen Steven H. D.
Sanyo Electric O., Ltd.
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