Patent ID: 7822876

Claim:
A system for synchronizing an electronic device, the system comprising: a data store that stores time calibration values for one or more electronic devices, wherein each time calibration value is usable by its respective electronic device to synchronize its measurement of time with a reference time keeping device; a computing device in communication with the data store and the reference time keeping device, the computing device operative to: measure at least one time calibration value using measurements of time from the reference time keeping device and the electronic device, receive a user request for digital content; and retrieve the requested digital content, the digital content having time based access restrictions measured with respect to the reference time keeping device; and a portable data transfer device configured for communication with the computing device and the electronic devices so as to transfer the requested digital content and the time calibration values from the computing device to the electronic devices, wherein the portable data transfer device does not include a time keeping device.