The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 05, 2008
Filed:
Jun. 09, 2004
Neela Syam Kolli, Lawrenceville, GA (US);
Ajitabh Prakash Saxena, Norcross, GA (US);
Krishna Kishore Lingamsetty, Lilburn, GA (US);
Neela Syam Kolli, Lawrenceville, GA (US);
Ajitabh Prakash Saxena, Norcross, GA (US);
Krishna Kishore Lingamsetty, Lilburn, GA (US);
LSI Corporation, Milpitas, CA (US);
Abstract
An apparatus, computer program product, and method for preventing piracy in combined hardware/software products, and specifically in RAID storage systems is disclosed. In a preferred embodiment of the present invention, when a hardware device (a disk controller, in a preferred embodiment) is initialized, the device executes firmware that directs it to write a signature to a storage location (scratchpad register) in the device, where the signature corresponds to a set of product features authorized for use with the hardware device. When application code executing on the host computer system attempts to access a feature (e.g., through device driver code), the stored signature is read from the hardware device. The code implementing the feature is allowed to execute only if the signature that is read from the hardware device matches a feature level of the product in which that feature is authorized.
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