Multiplex communications – Channel assignment techniques – Combining or distributing information via time channels...
Reexamination Certificate
2004-08-02
2008-11-25
Pérez-Gutiérrez, Rafael (Department: 2617)
Multiplex communications
Channel assignment techniques
Combining or distributing information via time channels...
C370S346000, C370S348000, C370S338000, C370S461000, C370S448000, C370S468000, C370S445000, C370S235000, C370S352000, C455S025000, C709S224000
Reexamination Certificate
active
07457306
ABSTRACT:
A network communication system is provided whereby communication stations can obtain priority for data transmission to communicate directly with each other in a contention-free mode communication period independently of a polling operation of the control station. The control station emits a series of beacons at equal intervals to initiate contention-free mode communication at the completion of a predetermined number of beacons. During the maximum contention-free mode communication period a contention-free communication operation is initiated, for allowing contention-free mode transmission, by a polling operation by the control station. A series of time-slots is imaginarily provided at equal intervals from the start of the contention-free period throughout the maximum contention-free period. A communication station conducts a call-connection procedure in order to obtain a priority for data transmission in a given set of time-slots.
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Doi Hiroshi
Kobayashi Hirokazu
Watanabe Yoshinori
Arevalo Joseph
Dickinson Wright PLLC
Matsushita Electric - Industrial Co., Ltd.
Perez-Gutierrez Rafael
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