Digital Cache LLC

U.S. Patent No. 6,851,015


This prior art search report presents the mappings of the various elements of Claim 1 of U.S. Patent No. 6,851,015 (’015 Patent), titled “Method of overwriting data in nonvolatile memory and a control apparatus used for the method”, from assignee Digital Cache LLC published on 01 February 2005.

The patent discloses a method of overwriting data stored sector by sector in a nonvolatile memory. The data to be overwritten is stored together with an error detection code in a backup region. Through this method, data saved in the nonvolatile memory is protected. When loss of power occurs, error checking is performed using the error detection codes to validate the data in the data sector.

This preliminary search report includes the following:

  • References found from the preliminary search
  • Claims mapping chart
  • Copies of the selected references with highlighted excerpts
  • Search strategies used in conducting the prior art search


This ParolaPRIME™ report is not legal advice. The suggested correspondences between the features disclosed in the patent-at-issue and those disclosed in each reference reflect what Parola Analytics believes are technical similarities between those respective sets of features. Parola Analytics makes no representation concerning any legal status or effect that may arise from documents mentioned in this report, such as the validity of any apparent priority date or the assertability of any document as prior art against a patent. You should independently obtain legal counsel before attempting to rely on any portion of this report in a legal proceeding.

The references presented in this report are only preliminary and do not represent results from an exhaustive search. For the full report, request a quote.

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