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US 7,623,422 B2Granted
Disklike recording media, a method for detecting forged disks, and anti-forgery system for performing a true-false judgement based on information collected from the recording media, and a manufacturing apparatus for recording information in the disks
AssigneeVictor Company of Japan, Ltd.
InventorTetsuya Kondo
Life of this patent
Estimating the term…
Abstract
A recording medium includes first information selected from a plurality of information patterns and second information selected from another plurality of information patterns for the true-false judgement. A true-false judging device performs a statistic analysis when any coincidence is found between the readout combination of the first and second information and registered combination patterns, to identify an inspected recording medium as a forged product based on the result of the statistic analysis.
Claims3
A playback and communication system, comprising:
- a playback device for reading information stored in a predetermined region of an information recording medium;
- and
- a communication device for establishing a communication line between the playback device and an external device to transmit the information read out by the playback device to the external device via the communication line,
- wherein the communication device is adapted to receive an answer signal transmitted from the external device, and to transmit the answer signal to the playback device,
- wherein the playback device is adapted to read out information from a region of the information recording medium other than the predetermined region, based on the answer signal, and
- wherein the communication device is adapted to transmit a network ID to the external device via the communication line.
3 more elements
An information processing system, comprising:
- a receiving device for receiving first information via a communication line from an apparatus which includes a playback device for reading the first information from a predetermined region of an information recording medium;
- a communication device for establishing the communication line;
- a processor for processing second information indicating reading out of information from a region of the information recording medium other than the predetermined region, on the basis of the first information received by the receiving device;
- and
- a transmitting device for outputting the second information processed by said processor,
- wherein the processor is adapted to process a network ID received by the receiving device.
3 more elements
Dependencies are inferred from the claim text.