Partial duplex frequency domain modulator system and method

Details Partial duplex frequency domain modulator system and method Partial duplex frequency domain modulator system and method

2008-04-01

2008-04-01

Nguyen, Brian (Department: 2616)

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via frequency channels

C370S276000

Reexamination Certificate

active

10797709

ABSTRACT:
In a multi-carrier transmission scheme (frequency domain multiplexed—FDM), a single high rate data stream is split into multiple lower rate data streams each transmitted over a different carrier (e.g., a tone or bin). The data rate possible from a multiple-carrier transmission scheme is theoretically equivalent to the data rate possible from a single-carrier (including baseband) scheme with the same composite bandwidth. The scheme allows for a communications system that can selectively send each data signal (e.g., audio data, video data, raw data, etc.) partitioned out into full and half duplex sections (e.g., tones). The scheme can have a reduced complexity and cost and use less bandwidth. This is done by being able to selectively split a data signal into both full and half duplex tones.

REFERENCES:
patent: 6987951 (2006-01-01), Boos
patent: 7046999 (2006-05-01), Wu et al.
patent: 2001/0002924 (2001-06-01), Tajima
patent: 2003/0050018 (2003-03-01), Weissman et al.

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