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Memory management apparatus

  • US 8,166,353 B2
  • Filed: 08/04/2008
  • Issued: 04/24/2012
  • Est. Priority Date: 08/03/2007
  • Status: Active Grant
First Claim
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1. A fault code memory management apparatus comprising:

  • a memory management unit configured to store a same fault code of a detection object in a vehicle at different memory areas of a non-volatile memory, wherein the fault code of the detection object represents a detected fault of the detection object, and wherein information in the non-volatile memory is both readable and writable;

    an error detection unit configured to detect an error of the fault code in the non-volatile memory upon detecting discrepancy of at least one of the same fault codes stored at the different memory areas through performing a matching of the fault codes;

    an information table memory configured to store a fault code table to be stored in the non-volatile memory, wherein the fault code table is an information table that includes the fault codes; and

    an authentication unit configured to authenticate the fault code as a genuine fault code by comparing each of the fault codes stored at different areas in the non-volatile memory with the fault codes included in the fault code table when the error detection unit at least detects the error as a discrepancy of the fault code in the non-volatile memory, wherein the fault code is determined as the genuine fault code when the authentication unit recognizes that the fault code is included in the fault code table.

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