Patent ID: 7548633
Filing Date: 2009-06-16
Classification: G06T

Abstract:
1. A data processing apparatus for performing manipulating or editing on digital data, comprising: a data input device arranged to input digital data in which a digital watermark is embedded by using a plurality of elements for at least 1 bit information; a key information input device arranged to input key information which designates an editorial right; a determination device arranged to determine whether or not the digital watermark is embedded in the input digital data based on the input digital data and the input key information by using a statistical method; a digital watermark removing device arranged to remove a digital watermark from the digital data in a case that said determination device determines that the digital watermark is embedded in the digital data; a manipulating/editing device arranged to manipulate or edit the digital data, from which the digital watermark has been removed by said digital watermark removing device; a digital watermark embedding device arranged to embed a digital watermark in the digital data, which has been manipulated or edited by said manipulating/editing device; and an output device arranged to output the digital data, in which the digital watermark has been embedded by said digital watermark embedding device.