| 摘要 |
<p>It is an object of the invention to provide a data processing device, a data processing method and a data processing program which can provide consistency between information of a macrovision signal and CGMS data added to an analogue video signal. A data processing device (10) receiving an analogue video signal (Svin) to which CGMS data and a macrovision signal are added is provided with a controller (33) having a determination means (33A), a rewrite means (33B) and a control means (33C). The CGMS data and the information of the macrovision signal are inputted from a CGMS decoder (31) and a macrovision detector (32), respectively, to the determination means (33A). In the determination means (33A), it is determined whether the information of the macrovision signal and the CGMS data conflict each other or not. When they conflict, the CGMS data is rewritten in the rewrite means (33B), after of which it is determined whether there is a conflict between them in the determination means (33A).</p> |
