19787 results about "Information transmission" patented technology

During an online event, a spectator process monitors a state of the event, updating a spectator model, so that spectator data streams can be generated and provided to spectators. The spectator data streams can be formatted and provided with content appropriate for use by different types of spectator devices used by the spectators. The spectator process can also automatically generate virtual commentary appropriate for the action occurring in the event for inclusion in the spectator data streams. A media server receives the rendered data streams and distributes them to the electronic devices being used by the spectators. The distribution can be delayed to avoid a spectator conveying information to a participant that would provide an unfair advantage. Executable code can be included in the spectator data stream to provide additional functionality and facilitate interaction between the spectators, and to enable a spectator to also “play” the game.

Content data encrypted with a content key, the content key encrypted with an individual key specific to an information sending device, and the individual key encrypted with a distribution key that is updated in a predetermined cycle, and supplied are sent to an information receiving device, and the information receiving device decrypts the individual key with the distribution key, decrypts the content key with the individual key, and decrypts the content data with the content key. Thus, the information sending device does not have the distribution key, and accordingly piracy of content data can be prevented with a simple configuration. Also, the information receiving device sends the content key and a playback command to other apparatuses. Thus, other apparatuses can play back contents using the playback command and the content key. Furthermore, the information sending device decrypts the content key with the distribution key before being updated, and stores the same. Thus, contents purchased by an advance order can be actually purchased regardless of expiration dates of the distribution key. Furthermore, usage right is passed from a first information receiving device to a second information receiving device different in registration information at the tome of using contents. Thus, contents can be used among information receiving devices different from each other in registration information.