Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hirotaka Yamamoto0
Date of Patent
August 12, 2008
Patent Application Number
10913535
Date Filed
August 9, 2004
Patent Primary Examiner
Patent abstract
An ECU of a vehicle is activated to communicate with a user validation apparatus while a specific signal such as an ignition signal is being produced, and to perform a first control operation when positive validation occurs, and can be activated by a request signal for a second control operation while the specific signal is off, without performing the communication. Erroneous detection of a communication error is avoided in a case when communication is interrupted due to switch-off of the specific signal and the request signal for the second control operation is received during that communication.
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