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US 8,151,121 B1Granted
Secure data storage
AssigneeLSI Corporation
InventorsTerrence L. Wong, Ian E. Harvey, David C. Lee, Greg S. Lewis, Steven R. Spielman, Christopher C. Tan, David K. Warland
Life of this patent
Estimating the term…
Abstract
Securely storing data to an optical disc has been described, including generating write data that includes the data and overhead data that facilitates reading the data from the disc; and configuring the overhead data according to a key.
Claims19
A method of storing data to an optical disc comprising:
- generating encoded data that includes a payload data block and overhead data to be stored on the optical disc, wherein the overhead data is (i) used by one or more components of a disc writing system to write the encoded data to the optical disc and (ii) used by one or more components of a disc reading system to read the encoded data from the optical disc using instructions generated based upon a key, wherein the key is a seed to a pseudorandom number generator and it is infeasible to convert an analog read signal recovered from the optical disc into encoded digital data without the key;
- and
- generating the overhead data according to the key.
A method of storing data to an optical disc comprising:
- generating encoded data that includes a payload data block and overhead data to be stored on the optical disc, wherein the overhead data is (i) used by one or more components of a disc writing system to write the encoded data to the optical disc and (ii) used by one or more components of a disc reading system to read the encoded data from the optical disc using instructions generated based upon a key, wherein it is infeasible to convert an analog read signal recovered from the optical disc into encoded digital data without the key;
- and
- generating the overhead data according to the key, wherein equalization is controlled based upon the overhead data.
A method of storing data to an optical disc comprising:
- generating encoded data that includes a payload data block and overhead data to be stored on the optical disc, wherein the overhead data is (i) used by one or more components of a disc writing system to write the encoded data to the optical disc and (ii) used by one or more components of a disc reading system to read the encoded data from the optical disc using instructions generated based upon a key, wherein it is infeasible to convert an analog read signal recovered from the optical disc into encoded digital data without the key;
- and
- generating the overhead data according to the key, wherein automatic gain control is adjusted based upon the overhead data.
Dependencies are inferred from the claim text.