Cisco Assigned Patent

Cisco Technology, Inc., San Jose, CA, has been assigned a patent (9,448,877) developed by Candelaria, James, Branchburg, NJ, for a “methods and apparatus for error detection and correction in data storage systems using hash value comparisons.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Data processing methods and apparatus for processing stored data with error correcting bits to detect and in some instances correct errors. The data processing including, e.g., techniques such as the detection of errors by comparing hash values of data retrieved from storage with hash values of the data generated during storage. For example, one embodiment of a method in accordance with the present invention includes reading data stored with error correcting bits from a storage device, performing a hash operation on the data read from the storage device to generate a first hash value, comparing said first hash value to a previously generated hash value corresponding to said data, and determining that a read error has occurred when said first hash value does not match said previously generated hash value. In some embodiments, the method further includes performing an error recovery operation upon detection of an error.“

The patent application was filed on March 15, 2013 (13/844,272).