IP Library › Granted Patent US 7,885,153
Granted Patent B2
US 7,885,153 · App. 12/588,474 · Granted Feb 8, 2011

Disklike recording media, a method for detecting forged disks, an 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

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Quick Facts
Patent No.
US 7,885,153
App. No.
12/588,474
Granted
Feb 8, 2011
Kind
B2
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.

Claims (9)

1. 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 identification data of a handler or a buyer, handling or buying the information recording medium, to the external device via the communication line.

2. The system according to claim 1 , wherein the identification data of the handler is a code number, an address or a telephone number of a wholesaler.

3. The system according to claim 1 , wherein the identification data of the handler is a code number, an address or a telephone number of a retailer.

4. The system according to claim 1 , wherein the identification data of the buyer is a code number, an address or a telephone number of a customer.