Patent ID: 7578000
Filing Date: 2009-08-18
Classification: G06F,G06T,G11B,H04N

Abstract:
1. A recording device to record a contents data on a computer readable storage medium comprising: a computer having a controller; a secure input unit configured to input the contents data and digital copy control information corresponding to the contents data; an insecure input unit configured to input the contents data; a detector configured to detect watermark copy control information, which is embedded in the contents data as a digital watermark; and a writer configured to record the contents data on the computer readable storage medium, based only on the digital copy control information, when the contents data is input from the secure input unit and record the contents data with the digital copy control information added to the contents data on the computer readable storage medium, based on the watermark copy control information, when the contents data is input from the insecure input unit, wherein each of the digital copy control information and the watermark copy control information has one of first information which shows that there is no limitation concerning the copy, second information which shows that the copy is permitted only once, third information which shows that the copy has been prohibited and the second information has been updated, and fourth information which shows that the copy is prohibited, and the writer records the contents data input from the secure input unit on the computer readable storage medium, only when the digital copy control information has the first information or the second information.