Pulse or digital communications – Transmitters
Reexamination Certificate
2007-04-24
2007-04-24
Bayard, Emmanuel (Department: 2611)
Pulse or digital communications
Transmitters
C375S324000
Reexamination Certificate
active
09844401
ABSTRACT:
Signals, systems and methods for transmitting and receiving layered modulation for digital signals are presented. A layered signal for transmitting data, comprises a first signal layer including a first carrier and first signal symbols for a first digital signal transmission and a second signal layer including a second carrier and second signal symbols for a second signal, transmission disposed on the first signal layer, wherein the layered signal has the first carrier demodulated and first layer decoded to produce the first signal symbols for a first layer transport, the first signal symbols are remodulated and subtracted from the layered signal to produce the second signal layer, and the second signal layer has the second carrier demodulated and decoded to produce the second signal symbols for a second layer transport.
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