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Device, method, and program for performing master/slave switching process

  • US 20050262216A1
  • Filed: 05/31/2004
  • Published: 11/24/2005
  • Est. Priority Date: 06/02/2003
  • Status: Abandoned Application
First Claim
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1. A device having a master function for use in a network system in which a master device manages at least one slave device, the device comprising:

  • a device'"'"'s own device information managing section operable to manage device'"'"'s own device information regarding the device;

    an other device information managing section operable to manage other device information regarding at least one another device connected to the network system, the other device information including at least availability of the master function;

    a schedule information managing section operable to manage schedule information indicative of master device candidates by predetermined segment;

    a device information processing section operable, when the device operates as the master device, to specify, at a predetermined time, a slave device which is one of the master device candidates having the master function based on the other device information and the schedule information, and operable to obtain predetermined information from the specified slave device; and

    a switch controlling section operable to control switching of a master operation and a slave operation based on the predetermined information obtained by the device information processing section and the predetermined information included in the device'"'"'s own device information.

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