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
Handling errors in a data processing system
Battery structures and related methods
Method for manufacturing photoelectric conversion device
Control unit including a computing device and a peripheral module which are interconnected via a serial multiwire bus
Method for identifying modulators of GPCR GPR1 function
Systems and methods for redox flow battery scalable modular reactant storage
Electrical event detection device and method of detecting and classifying electrical power usage
  Randomly Featured Patents
Monolithically integratable bistable multivibrator circuit having at least one output that can be placed in a preferential state
Prediction of functional availability of complex system
Identification system
Subscribing to content
Composition containing flavan compound
Imaging method and device using biometric information for operator authentication
Automatic brake system of wheeled motor vehicle
Modified tannin mannich polymers
Applicator
Method for control of contention-based wireless access