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:
May. 21, 2013
Filed:
Apr. 19, 2010
Fabrice Jogand-coulomb, San Carlos, CA (US);
Bahman Qawami, San Jose, CA (US);
Farshid Sabet-shargi, Los Altos Hills, CA (US);
Carlos J. Gonzalez, Los Gatos, CA (US);
Fabrice Jogand-Coulomb, San Carlos, CA (US);
Bahman Qawami, San Jose, CA (US);
Farshid Sabet-Shargi, Los Altos Hills, CA (US);
Carlos J. Gonzalez, Los Gatos, CA (US);
SanDisk Technologies Inc., Plano, TX (US);
Abstract
A portable mass storage device is used to store large files such as digital pictures, movies and music. The mass storage device has firmware with security mechanisms that limit access to read write operations to ensure reliable operation of the device to prevent unwanted copying or storing of secure content such a copyrighted material. Although the security mechanisms generally limit access, the firmware is operable to work with a virtual machine and allows the virtual machine to access the secure content and work in conjunction with the firmware to read and write data to the mass storage memory, if the virtual machine is present. The virtual machine is either loaded but not activated at the time of manufacture, or is downloaded and activated post manufacture. Any royalty for the virtual machine is paid for only if and when the virtual machine is both present and activated in the device.