Multiplex communications – Communication techniques for information carried in plural... – Combined time division and frequency division
Reexamination Certificate
2007-01-16
2007-01-16
Pezzlo, John (Department: 2616)
Multiplex communications
Communication techniques for information carried in plural...
Combined time division and frequency division
C370S436000
Reexamination Certificate
active
10089107
ABSTRACT:
The transmitter comprises a data/modulation control section (4) which sets predetermined parameters necessary for demodulation processing, sub-carrier group modulation processing sections (6ato8c) which perform frequency spreading for each sub-carrier signal in the sub-carrier group, and time spreading sections (10ato10c) which multiplex all signals after the modulation processing and the frequency spreading for each sub-carrier signal, and perform time spreading with respect to the multiplexed signals. The receiver comprises time despreading sections (35ato35c) which perform time despreading for each sub-carrier signal, and sub-carrier group demodulation processing sections (36ato38c) which perform frequency despreading for each sub-carrier signal after the time despreading.
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Kataoka Nobuhisa
Sano Hiroyasu
Mitsubishi Denki & Kabushiki Kaisha
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Pezzlo John
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