Multiplex communications – Diagnostic testing – Of a repeater
Reexamination Certificate
2005-04-12
2005-04-12
Pezzlo, John (Department: 2662)
Multiplex communications
Diagnostic testing
Of a repeater
C370S395420, C370S395700, C370S401000
Reexamination Certificate
active
06879563
ABSTRACT:
A multiplex communication system having a data repeater, which can prevent data from being lost so as to improve reliability of data communication, when a data repeater of a multiplex communication system repeats data. A multiplex communication system is made up of a plurality of communication groups including a plurality of communication lines and a data repeater. The data repeater is made up of receiving buffers, sending buffers, a data controller and a transfer-address table. The data controller selects multiplex communication lines through which the received data is to be repeated and transfers the received data thereto. The data controller has a priority-reset means for increasing a priority of a received data before being sent. The priority-reset means prioritizes a sending of the data from the data repeater, even if the data sent from the data repeater collides with the other data on the multiplex communication lines through which the received data is to be repeated. In this way, the priority-reset means prevents the data waiting for being sent in the data repeater from being lost by being overwritten with newly received data.
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Hayashi Ikuo
Honda Hiroshi
Kamiya Masachika
Kishigami Tomohisa
Kume Masato
Denso Corporation
Levitan D
Nippon Soken Inc.
Pezzlo John
Posz Law Group , PLC
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