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Efficient use of CRC with limited data

  • US 8,694,879 B1
  • Filed: 09/14/2011
  • Issued: 04/08/2014
  • Est. Priority Date: 09/14/2010
  • Status: Expired due to Fees
First Claim
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1. A method performed by an automotive sensor, the method comprising:

  • reading from memory previously stored back-calculated diagnostic-code values for which a fixed cyclic-redundancy-check (“

    CRC”

    ) value is valid;

    transmitting the previously stored back-calculated diagnostic-code values read from memory each paired together with the fixed CRC value; and

    wherein the previously stored back-calculated diagnostic-code values for which the fixed-CRC value is valid include values within a range of 800-FFF hexadecimal, the fixed-CRC value is 1B hexadecimal, and a diagnostic-error-codes-message identifier is 01 hexadecimal.

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