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High-reliability computer interface for wireless input devices

  • US 20050243058A1
  • Filed: 03/16/2005
  • Published: 11/03/2005
  • Est. Priority Date: 03/16/2004
  • Status: Abandoned Application
First Claim
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1. A method for sending messages between computing units of a computing system using radio frequency (RF) communications, comprising:

  • a) sending a first RF message from a first unit to a second unit and starting an acknowledgement (ACK) timer;

    b) receiving said first RF message at said second unit and performing a cyclical redundancy check (CRC) on said first RF message;

    c) sending a second RF message from said second unit to the first unit acknowledging that the first message was received when the CRC performed on said first RF message is good;

    d) receiving said second message at the first unit and performing the CRC on the second message; and

    e) canceling said ACK timer when the CRC performed on the second message is good.

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