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Ring network and data transmitter

  • US 20040088436A1
  • Filed: 04/04/2003
  • Published: 05/06/2004
  • Est. Priority Date: 10/05/2000
  • Status: Active Grant
First Claim
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1. (Amended) A ring-shaped network in which plural data transmission apparatuses, each performing data transmission while assigning one or more bits of data as one data symbol to a signal level, are connected via a transmission path, wherein one of the data transmission apparatuses is a master data transmission apparatus, while the other data transmission apparatuses are slave data transmission apparatuses;

  • each of the data transmission apparatuses is connected with a device which is supplied with data received by the data transmission apparatus, and outputs a result of processing to the data transmission apparatus;

    at turn-on of power or immediately after reset, the master data transmission apparatus outputs the data supplied from the connected device, to the transmission path;

    each of the slave data transmission apparatuses receives, from the transmission path, the data outputted from the data transmission apparatus connected in the previous stage, establishes clock synchronization, outputs the received data to the connected device, and resends the received data to the transmission path; and

    the slave data transmission apparatus outputs the data supplied from the connected device, to the transmission path, after synchronization of the connected device is established.

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