Communication system
First Claim
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1. A communication system with first and second electronic units communicably coupled to each other, the first electronic unit storing data, the communication system comprising:
- a first transmitting module provided in the first electronic unit and configured to transmit to the second electronic unit first information indicative of a feature of the data stored in the first electronic unit;
a storing module provided in the second electronic unit and configured to previously store second information corresponding to the first information;
a receiving module provided in the second electronic unit and configured to receive the first information transmitted from the first electronic unit; and
a comparing module provided in the second electronic unit and configured to compare the received first information with the second information to determine whether the data stored in the first electronic unit is tampered based on the compared result.
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Abstract
In a communication system, a receiving module provided in a second electronic unit receives first information transmitted from a first electronic unit. A comparing module provided in the second electronic unit compares the received first information with second information previously stored in the second electric unit to determine whether data stored in the first electronic unit is tampered based on the compared result.
29 Citations
13 Claims
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1. A communication system with first and second electronic units communicably coupled to each other, the first electronic unit storing data, the communication system comprising:
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a first transmitting module provided in the first electronic unit and configured to transmit to the second electronic unit first information indicative of a feature of the data stored in the first electronic unit;
a storing module provided in the second electronic unit and configured to previously store second information corresponding to the first information;
a receiving module provided in the second electronic unit and configured to receive the first information transmitted from the first electronic unit; and
a comparing module provided in the second electronic unit and configured to compare the received first information with the second information to determine whether the data stored in the first electronic unit is tampered based on the compared result. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A communication system installed in a vehicle and having first and second electronic control units communicably coupled to each other for controlling devices installed in the vehicle, the first electronic control unit storing data, the communication system comprising:
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a first transmitting module provided in the first electronic control unit and configured to transmit to the second electronic control unit first information indicative of a feature of the data stored in the first electronic control unit;
a storing module provided in the second electronic control unit and configured to previously store second information corresponding to the first information;
a receiving module provided in the second electronic control unit and configured to receive the first information transmitted from the first electronic control unit; and
a comparing module provided in the second electronic control unit and configured to compare the received first information with the second information to determine whether the data stored in the first electronic control unit is tampered based on the compared result. - View Dependent Claims (12, 13)
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Specification