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Method of protecting the data transmission in a data bus

  • US 20040015603A1
  • Filed: 04/24/2002
  • Published: 01/22/2004
  • Est. Priority Date: 10/25/1999
  • Status: Abandoned Application
First Claim
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1. A method for securing data transfer in a data bus via which data telegrams of at least one transmitter are transferred containing a data field having a variable length and a check sum, a data transfer quality being determined by a receiver using the check sum, the method comprising the acts of:

  • obtaining an indication of a data field length of a data telegram; and

    providing a shorter check sum length when it is indicated the data field length is shorted than when the data field length is longer.

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