Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Multiplanar image displays and media formatted to provide 3D imagery without 3D glasses
Apparatus with a local timing circuit that generates a multi-phase timing signal for a digital signal processing circuit
System and method for optimizing utilization of inventory space for dispensable articles
Liquid formulations of carboxamide arthropodicides
Protection circuit, substrate for electro-optical device, electro-optical device, electrophoretic display device, electronic apparatus, and manufacturing method of electro-optical device
Location estimation of wireless terminals through pattern matching of deduced signal strengths
Method and apparatus for producing homogeneous magnetic fields
  Randomly Featured Patents
Method of integrating a watermark into a compressed image
Recording control apparatus, recording control method, control program, recording medium on which control program is recorded, recording control system, and information processing system
Cooling device and projector using the same
Calibration of an analogue probe
Method of optimizing sidewall spacer size for silicide proximity with in-situ clean
Power supply for a difficult to start electrodeless lamp
Extended range thruster system and method of determining thrust
Device for forming high precision optical lens and the product made by the device
Electrical switch construction
Multi-functional mounting unit for a police car