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Method and apparatus to communicate device information between a device and a controller

  • US 20030005343A1
  • Filed: 06/29/2001
  • Published: 01/02/2003
  • Est. Priority Date: 06/29/2001
  • Status: Active Grant
First Claim
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1. A system to communicate between a device and a controller, the system comprising:

  • a data line to communicate a data signal of a frequency from said device to said controller;

    a clock line to communicate a clock signal of a frequency from said device to said controller; and

    a guard line to communicate a guard signal from said device to said controller;

    wherein the data signal comprises at least device information to be utilized by the controller;

    the clock signal provides a timing reference, for transmission by the device and receipt by the controller, of the data signal;

    said timing reference is verified through analysis of the guard signal in relation to the clock signal; and

    data signal synchronization occurs through recognition of a bit pattern in the data signal.

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