Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate
2006-11-30
2010-06-29
Juntima, Nittaya (Department: 2462)
Multiplex communications
Diagnostic testing
Determination of communication parameters
C370S479000, C370S489000, C370S516000, C398S077000
Reexamination Certificate
active
07746805
ABSTRACT:
In a communication network which performs transmission from a plurality of first communication devices to a single second communication device using a synchronous code division multiplexing technique, the phases of signals transmitted from the first communication devices are synchronized easily. The first communication devices control the transmission phase of spread modulated signals using phase control information received from the second communication device. A repeater generates a code division multiplexed signal by superposing the spread modulated signals transmitted respectively from the first transmission devices. The second transmission device demultiplexes the code division multiplexed signal received from the repeater, determines the optimum phase of the demultiplexed signals, and transmits the determined optimum phase to the first transmission devices as the phase control information.
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Kashima Masayuki
Tamai Hideaki
Juntima Nittaya
Oki Electric Industry Co. Ltd.
Rabin & Berdo P.C.
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