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
Digital watermark embedding apparatus, digital watermark embedding method, and digital watermark detection apparatus
Motilin-like peptide compound having transmucosal absorbability imparted thereto
Mobile application for calendar sharing and scheduling
Selection of a suitable node to host a virtual machine in an environment containing a large number of nodes
Pharmaceutical compositions of entacapone, levodopa and carbidopa with improved bioavailability
Image forming apparatus, image forming method, and computer readable medium for identifying target-recording element using detection pattern
Tri-material dual-species neutron spectrometer
  Randomly Featured Patents
Vehicle wheel balancer system
Benzazolides and their employment in phosphite ester oligonucleotide synthesis processes
Packaging sheath with contents
Visual verification of prescription medication and information and warning label
Analysis system and analysis server
Development bias connector with integral bearing support
Quick changeover filling, centering bracket
Apparatus for monitoring the pressing force of a contact roll in a textile yarn winder
Computer program testing
Roll-to-roll glass material attributes and fingerprint