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Communication system, terminal, reproduction program, recorded medium on which reproduction program is recorded, server device, server program, and recorded medium on which server program is recorded

  • US 20040024860A1
  • Filed: 04/02/2003
  • Published: 02/05/2004
  • Est. Priority Date: 10/26/2000
  • Status: Active Grant
First Claim
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1. A communication system, comprising:

  • a terminal device including reproduction means which carries out reproduction of a digital content; and

    a server machine which is connected to the terminal device via a communication link and includes program generation means for generating a device ID alteration program by which a device ID of the terminal device is altered, the communication system being characterized in that;

    the reproduction means includes ID setting means for setting a device ID corresponding to the terminal device;

    the digital content is reproduced only when a device ID included in the digital content corresponds to a device ID of a device by which it is intended to reproduce the digital content;

    when the device ID alteration program is supplied from the server machine, the device ID of the terminal device is altered in accordance with the device ID alteration program; and

    when the server machine receives a request to alter the device ID from the terminal device, the device ID alteration program is sent to the terminal device.

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