US Patent 10380568 Accessing rights-managed content from constrained connectivity devices

A DRM system is provided wherein when a protected content unit is provided to an access device, the access information associated with the protected content unit is retrieved from the DRM server and provided to the access device in the same transaction in which the protected content unit is provided. Therefore, when the user seeks to access the protected content unit, the access request can be handled locally without the need to rely upon potentially constrained connectivity to the DRM server. The techniques described herein enable an access device to access content protected by a DRM system. When a protected content unit and access information is received at the access device, in one transaction, the protected content unit can be decrypted on the access device using the access information, and/or the access information can be used to enforce a DRM policy associated with the protected content unit.