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. 25, 2009
Filed:
Jun. 13, 2002
William G. Home, Lawrenceville, NJ (US);
Lesley R. Matheson, Discovery Bay, CA (US);
Casey Sheehan, Hollister, CA (US);
Robert E. Tarjan, Princeton, NJ (US);
William G. Home, Lawrenceville, NJ (US);
Lesley R. Matheson, Discovery Bay, CA (US);
Casey Sheehan, Hollister, CA (US);
Robert E. Tarjan, Princeton, NJ (US);
InterTrust Technologies Corporation, Sunnyvale, CA (US);
Abstract
Software self-checking mechanisms are described for improving software tamper resistance and/or reliability. Redundant tests are performed to detect modifications to a program while it is running. Modifications are recorded or reported. Embodiments of the software self-checking mechanisms can be implemented such that they are relatively stealthy and robust, and so that it they are compatible with copy-specific static watermarking and other tamper-resistance techniques.