Method and system for communication spectral backward...

Details Method and system for communication spectral backward... Method and system for communication spectral backward...

2007-06-21

2008-07-01

Fan, Chieh M. (Department: 2611)

Pulse or digital communications

Transmitters

C375S222000

Reexamination Certificate

active

07394868

ABSTRACT:
Communications method including the procedures of modulating a second generation carrier signal, with a first generation Baseband bandwidth signal, when transmitting to first generation devices, and, modulating the second generation carrier signal, with a second generation Baseband bandwidth signal, when transmitting to second generation devices, wherein the first generation Baseband bandwidth signal, is shaped so as to recreate a first generation signal, when up-sampled and modulated with a second generation carrier signal.

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patent: 2003/0156592 (2003-08-01), Ojard et al.
patent: 2003/0156656 (2003-08-01), Ojard et al.

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