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Data conversion in a multiprocessing system usable while maintaining system operations

  • US 5,625,804 A
  • Filed: 04/17/1995
  • Issued: 04/29/1997
  • Est. Priority Date: 04/17/1995
  • Status: Expired due to Term
First Claim
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1. A data conversion method in a multiprocessing system comprising a first processor, a second processor, and an external storage media coupled to said first processor and said second processor, said external storage media comprising a datum having a first format, said datum sharable by said first processor and said second processor, said data conversion method comprising a method for converting said datum from said first format common to the first processor and the second processor to a new, second format common to the first processor and the second processor without bringing the multiprocessing system down, said method comprising:

  • retrieving by said first processor said datum from said external storage media in said first format and using said retrieved datum in the second format, wherein said datum in said first format is usable by said second processor;

    retrieving by said second processor said datum from said external storage media in said first format and using said retrieved datum in said second format, wherein said datum is usable by said first processor and said second processor in said second format; and

    converting said datum on said external storage media from said first format to said second format after said datum is usable by said first processor and said second processor in said second format such that said datum in said second format is common to the first processor and the second processor, said converting allowing said first processor and said second processor to remain activated.

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