Multiplex communications – Generalized orthogonal or special mathematical techniques – Quadrature carriers
Reexamination Certificate
2007-01-02
2007-01-02
Vu, Huy D. (Department: 2616)
Multiplex communications
Generalized orthogonal or special mathematical techniques
Quadrature carriers
C370S208000
Reexamination Certificate
active
09969795
ABSTRACT:
An IS-OFDM system for point-to-point wireless communications that suppresses narrow-band interference comprises an IS-OFDM transmitter and an IS-OFDM receiver, wherein a transmitted signal comprises a plurality of subcarriers, and further wherein each subcarrier contains more than one and potentially all symbols transmitted in a given frame. The IS-OFDM transmited signal is at a data rate that is equal to the data rate of the input data stream via the use of P/S converters.
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Copy of PTO-892 attached to Office Action dated Feb. 2, 2006 of co-pending Appl. No. 11/103,762 filed Apr. 12, 2005.
AT&T Corp.
Nguyen Toan
Vu Huy D.
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