Multiplex communications – Generalized orthogonal or special mathematical techniques – Fourier transform
Reexamination Certificate
2005-12-13
2005-12-13
Chin, Wellington (Department: 2664)
Multiplex communications
Generalized orthogonal or special mathematical techniques
Fourier transform
C370S206000, C370S208000
Reexamination Certificate
active
06975585
ABSTRACT:
In a modulation system an efficient modulation at a master station and allows great flexibility in clients, from simple 2 bit/symbol single-channel modulation and demodulation to multi-channel multiple-bit modulation. The present invention also permits selection of the frequency band to use for transmission, thus dealing effectively with channel nulls and no channel equalization is required. The present invention is a useful technique for short-distance moderate-rate multi-drop networking, such as multi-channel home-telephone for Voice over IP(VoIP).
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Henderson P. Michael
Olafsson Sverrir
Chin Wellington
Conexant Systems Inc.
Farjami & Farjami LLP
Mew Kevin
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