| 摘要 |
A video signal processor is capable of executing on/off control of a copy inhibiting process and rendering extremely difficult any illegal cancellation of the copy inhibiting process by a third person. This video signal processor includes an obstructor for obstructing proper recording of a video signal; a memory for storing a specific code inputted when enabling the obstructor, and also for storing a disable request code inputted in response to a request for disabling the obstructor; a judge device for judging the relationship between the value of the specific code and the value of the disable request code outputted from the memory; and a decider for deciding an operation to disable the obstructor in accordance with the output of the judge means. The memory has a plurality of registers, and at least one of the bit components of the specific code and the disable request code is stored dispersedly in the plural registers in the memory.
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