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File management of one-time-programmable nonvolatile memory devices

  • US 6,950,918 B1
  • Filed: 04/30/2002
  • Issued: 09/27/2005
  • Est. Priority Date: 01/18/2002
  • Status: Expired due to Term
First Claim
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1. A nonvolatile memory system comprising:

  • a. One or more one-time programmable (OTP) devices organized into sectors for storing a first entire sector of information, said first entire sector of information including user and overhead information and being written for the first time by a host;

    b. a nonvolatile memory device organized into sectors for storing a second entire sector of information, said second entire sector of information including user and overhead information and being re-written by the host; and

    c. a controller device coupled to the OTP devices and the nonvolatile memory device, said controller causing storage of the first entire sector of information that is being written within the OTP devices while causing storage of the second entire sector of information being re-written within the nonvolatile memory, wherein use of the OTP allows for an inexpensive manufacturing of the nonvolatile memory system.

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