Information signal output control method, information signal duplication prevention method, information signal duplication prevention device, and information signal recording medium
AssigneeSony Corporation
InventorAkira Ogino
Life of this patent
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Abstract
If only any one of a pair of an SS anti-duplication control signal S5 and copy guard signal S6 generated correlatively each other added on the video signal played back from the disk is detected, or if the specific anti-duplication control signal is not detected, the video signal recorded in the disk is judged to be an illegally duplicated video signal, and the output control signal generation section controls the output control section so as not to output the playback video signal S4.
Claims8
An apparatus for controlling a recording of an information signal on a recording medium comprising:
- first detecting means for detecting a first copy control signal related to said information signal;
- second detecting means for detecting a second copy control signal related to said information signal;
- and
- control means for inhibiting said recording of said information signal on said recording medium when at least one of said first and second copy control signals is detected and when at least one of said detected copy control signals indicates a copy inhibit.
A method for controlling a recording of an information signal on a recording medium comprising the steps of:
- detecting a first copy control signal related to said information signal;
- detecting a second copy control signal related to said information signal;
- and
- inhibiting said recording of said information signal on said recording medium when at least one of said first and second copy control signals is detected and when at least one of said detected copy control signals indicates a copy inhibit.
Dependencies are inferred from the claim text.