Resources Contact Us Home
System and method for optical medium region protection

Image Number 3 for United States Patent #7805753.

Restrictions on optical drive code changes, such as a predetermined number of region code changes for playing optical media with varying region codes, are enforced with an application solution. Each request to perform a region code change is authorized by retrieving a certificate to verify that a code change is permitted, decrementing the number of remaining authorized code changes reflected by the certificate, and storing the updated certificate for use at a subsequent code change request. The certificate is generated by application of one or more unique identifiers and encrypted during storage for security.

  Recently Added Patents
Method and system for establishing security connection between switch equipments
Method of processing data and display apparatus for performing the method
Leg mounted portable computer
Character input device and program for displaying next word candidates based on the candidates' usage history
System, method and computer program product for efficient caching of hierarchical items
Image capturing apparatus, control method thereof, and program
Process for producing a carbon-comprising support
  Randomly Featured Patents
Combatting air pollution
Infrastructure independent position determining system
Personal watercraft
Printing apparatus, print control method, and recording medium storing print control program therein
Methods for the preparation of three-dimensional bodies
Electrical dosimetry control system
Mechanism for tracing back anonymous network flows in autonomous systems
Semiconductor memory device and system
Optimal use of logical channels within a mobile telecommunications network
Method for manufacturing sand mold