Patent ID: 8170399
Filing Date: 2012-05-01
Classification: H04N

Abstract:
1. A recording device comprising: an input portion that inputs a video/audio signal; a controller; an encrypting portion responsive to the controller to encrypt the video/audio signal from the input portion to provide an encrypted video/audio signal; a recording portion responsive to the controller to record the encrypted video/audio signal received from the encrypting portion in a first area of a storage device that can be written to or read from without special procedures and information necessary for utilizing the recorded encrypted video/audio signal in a secure area of the storage device separate from the first area and requiring a special procedure to write information to and to read information from the secure area; and a converting portion that converts at least one of a bit rate or data format of the video/audio signal under control by the controller, wherein: the controller controls the recording portion to copy the video/audio signal recorded in the first area to an exterior storage location outside of the recording device while further controlling the converting portion to convert the at least one of the bit rate or the data format of the video/audio signal being copied, the controller further controlling the recorder portion to move the information necessary for utilizing the video/audio signal from the secure area to the exterior storage location such that the moved information necessary for utilizing the video/audio signal is no longer present in the secure area after being moved to the exterior storage location, and the information necessary for utilizing the encrypted video/audio signal recorded in the secure area of the storage device is license information that includes information necessary for decrypting the encrypted video/audio signal and usage control information relating to the video/audio signal, and is recorded in a predetermined secure area of the exterior storage location.