ID check device, ID generation device, and authentication system
First Claim
1. An authentication system for use with a first device and a second device when attached to one another for authenticating the first device as appropriate for the second device, the system comprising:
- an authentication device, arranged in the second device, for generating an authentication request signal; and
an ID check device, arranged in the second device separately from the authentication device, the ID check device generating, in response to the authentication request signal, a first identification signal used to identify the second device, receiving from the first device a second identification signal used to identify the first device, comparing the first identification signal and the second identification signal, generating an authentication result signal in accordance with the comparison result, and providing the authentication result signal to the authentication device.
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Accused Products
Abstract
An authentication system for determining whether an appropriate external device is attached to a main device. The main device includes an authentication device and an ID check device, which is incorporated in an exclusive authentication chip. The authentication device is arranged separately from the exclusive authentication chip. In response to an authentication request signal from the authentication device, the ID check device generates a first identification signal for the main device and compares it with a second identification signal of the external device. The ID check device then provides the authentication device with an authentication result signal that is in accordance with the comparison result. The authentication device only determines whether the external device is appropriate based on the authentication result signal.
70 Citations
13 Claims
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1. An authentication system for use with a first device and a second device when attached to one another for authenticating the first device as appropriate for the second device, the system comprising:
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an authentication device, arranged in the second device, for generating an authentication request signal; and
an ID check device, arranged in the second device separately from the authentication device, the ID check device generating, in response to the authentication request signal, a first identification signal used to identify the second device, receiving from the first device a second identification signal used to identify the first device, comparing the first identification signal and the second identification signal, generating an authentication result signal in accordance with the comparison result, and providing the authentication result signal to the authentication device. - View Dependent Claims (2, 3, 4)
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5. An ID check device used in an authentication system for use with a first device and a second device attached to one another for authenticating the first device as appropriate for the second device, the second device including an authentication device for generating an authentication request signal, and the first device generating an identification signal used to identify the first device, the ID check device comprising:
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an authentication processing circuit for performing an authenticating process on the first device in response to the authentication request signal;
an encryption processing circuit for generating another identification signal, which is encrypted and used to identify the second device; and
a communication circuit for performing communication with the first device in accordance with a predetermined communication protocol;
the communication circuit transmitting the ID acquisition code to the first device to acquire said identification signal from the first device; and
the authentication processing circuit comparing the identification signals to generate an authentication result signal in accordance with the comparison result and providing the authentication result signal to the authentication device. - View Dependent Claims (6)
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7. An ID generation device incorporated in a first device for attachment to a second device having an ID acquisition code, the ID generation device comprising:
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a semiconductor device;
a communication circuit for performing communication with the first device in accordance with a predetermined communication protocol to receive the ID acquisition code from the second device and transmit an identification code to the second device when the first device is attached to the second device; and
an encryption processing circuit for receiving the ID acquisition code from the communication circuit, and performing a predetermined encryption process on the ID acquisition code to generate the identification signal, the communication circuit and the encryption processing circuit both being integrated on the semiconductor device. - View Dependent Claims (8)
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9. An authentication system for use with a first device and a second device when attached to one another for authenticating the first device as appropriate for the second device, the system comprising:
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an authentication device, arranged in the second device, for generating an authentication request signal;
an ID check device, arranged in the second device separately from the authentication device, for generating, in response to the authentication request signal, a first identification signal used to identify the second device and an ID acquisition code; and
an ID generation device, incorporated in the first device, for performing communication with the ID check device in accordance with a predetermined communication protocol, the ID generation device receiving the ID acquisition code from the ID check device, performing a predetermined encryption process on the ID acquisition code to generate a second identification signal, and transmitting the second identification signal to the ID check device, the ID check device comparing the first identification signal and the second identification signal to generate an authentication result signal in accordance with the comparison result and providing the authentication result signal to the authentication device, and the authentication device determining whether the first device is appropriate based on the authentication result signal. - View Dependent Claims (10, 11, 12, 13)
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Specification