Information storage and information transmission media with pare

Data processing: database and file management or data structures – Database design – Data structure types

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707200, 707 9, 711117, 711163, 369272, G06F 1730

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active

058130101

ABSTRACT:
Parental information of a video program recorded on an optical disk is always checked in a disk player. Even if a jump of laser beam tracing of an optical head erroneously occurs due to shocks or vibrations, the content of parental information assigned to the destination of optical head jumping is checked, to thereby achieve an accurate parental control of selective restriction for the video whose reproduction or presentation is restricted by the parental information.

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"Preventing Undesired Information Reproduction from a Writable Record Carrier", Research Disclosure, No. 335, p. 193, Mar. 1992.

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