Patent ID: 7900263
Filing Date: 2011-03-01
Classification: G11B,H04N

Abstract:
1. A content recording apparatus configured to record content in a first recording medium comprising: a reading module configured to read content and additional content information encrypted based on a first encryption scheme, and binding information for decrypting the content encrypted based on the first encryption scheme, from a second recording medium which is portable; a first additional content information storage module configured to store the additional content information read by the reading module; a first decryption module configured to use the binding information in order to decrypt the content encrypted based on the first encryption scheme and read by the reading module; a copy manager configured to authenticate with a permission server in order to confirm whether it is possible to copy the content; an encrypting module configured to encrypt the content decrypted by the first decoder, and the additional content information, based on a second encryption scheme when recording of the content is permitted by the copy manager; a content recorder configured to record the content encrypted by the second encrypting module as copied content in the first recording medium; a second additional content information storage module configured to record the additional content information encrypted by the encrypting module in the first recording medium; a first additional content information updater configured to update the additional content information in the first additional content information storage module while playing back the content recorded in the second recording medium; a second additional content information updater configured to update the additional content information in the second additional content information storage module while playing back the copied content recorded in the first recording medium; a monitor configured to detect that either the first additional content information updater or the second additional content information updater is updating; and a synchronizing module configured to update either the first additional content information updater or the second additional content information updater, whichever has not been updated with the updated additional content information when the monitor detects that updating by either the first additional content information updater or the second additional content information updater has been completed.