Unauthorized deice detection device, unauthorized device detection system, unauthorized device detection method, program, recording medium, and device information update method

A detection device and unauthorized technology, applied in analog security/charging system, image communication, key distribution, can solve the problem of deceptive viewing or listening, and achieve the effect of preventing unauthorized playback

Active Publication Date: 2007-05-02
PANASONIC CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Anyone with a replica device can therefore fraudulently watch or listen to the content

Method used

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  • Unauthorized deice detection device, unauthorized device detection system, unauthorized device detection method, program, recording medium, and device information update method
  • Unauthorized deice detection device, unauthorized device detection system, unauthorized device detection method, program, recording medium, and device information update method
  • Unauthorized deice detection device, unauthorized device detection system, unauthorized device detection method, program, recording medium, and device information update method

Examples

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Embodiment Construction

[0095] The replica terminal finding system of the first embodiment of the present invention is a system for finding replica terminals that have been manufactured and sold by unauthorized manufacturers or the like. These replica terminals are made by illegally duplicating legally manufactured user terminals such as DVD players.

[0096] The replica terminal search system will be described below with reference to the drawings.

[0097] concept

[0098] The replica terminal search system 1 of the first embodiment of the present invention consists of a management server 2, an information collection server 3, a first portable medium 4, a second portable medium 5a-5m (where m is a natural number), user terminals 6a-6n (here n is a natural number), and the communication channel 7 constitutes.

[0099] The first portable medium 4 is an optical disc (for example, DVD-ROM) on which moving picture content encrypted using a title key is recorded. The first portable media is sold throug...

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PUM

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Abstract

There are provided an unauthorized device detection device, a content reproduction device, an unauthorized device detection system, an information collection device, an unauthorized device detection method, a program, a recording medium, a device information update method, and an integrated circuit capable of detecting a clone device associated with a content reproduction device. In a management server (2), a reception processing unit (241) acquires a user terminal identifier and a first user terminal random number from a user terminal as an unauthorized device detection object and judges whether a second management server random number corresponding to the user terminal held in a recording unit (23) coincides with the first user terminal random number. If they do not coincide, a display unit (22) displays a message indicating that a clone terminal exists. If they coincide, a terminal information generation unit (243) generates a new random number and overwrites the generated random number on the second management server random number in the recording unit (23). Moreover, a transmission processing unit (246) transmits the generated random number via a transmission/reception unit (21) to the user terminal so that the user terminal updates the first user terminal random number to the generated random number.

Description

technical field [0001] The present invention relates to an unauthorized device detection device for detecting an unauthorized device produced by copying, and more particularly to a technique for detecting a copy playback device for playing copyright-protected content such as movies and music . Background technique [0002] In recent years, the existence of replica devices produced by duplicating licensed playback devices has become a major problem. To protect copyrights, only authorized devices are allowed to decrypt and replay encrypted content. However, each replica device has the same device key as the key held by the authorized playback device, and uses the same method used by the authorized playback device to decrypt and play the encrypted content. Anyone in possession of a replica device can therefore fraudulently watch or listen to that content. [0003] In response to this problem, Patent Document 1 discloses a method for detecting a replica terminal when the auth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/20H04N7/16G06F21/24H04N7/167H04L9/08G06F21/30
Inventor 野仲真佐男中野稔久布田裕一大森基司五味刚古原和邦今井秀树
Owner PANASONIC CORP
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