Remote-controlled in-vehicle device
First Claim
1. A remote-controlled in-vehicle device provided in a vehicle, the device comprising:
- a receiving unit for receiving a remote-controlling wireless signal transmitted from a transmitter when a given manipulation is conducted to the transmitter, demodulating the received wireless signal, and outputting a demodulated signal representing data included in the received wireless signal;
a controlling unit for executing a first determination of whether authentication data included in the outputted demodulated signal accords with authentication data unique to the vehicle, and for controlling a state of the vehicle when the first determination is affirmed;
a receiving state determining unit for executing a second determination of whether the outputted demodulated signal is compliant with a communications rule;
an analysis result storing unit for storing in a storage medium a result from the second determination as an analysis result for received electric waves; and
an analysis result outputting unit for outputting the stored analysis result when a read-out request of reading out the analysis result is received from an external device.
1 Assignment
0 Petitions
Accused Products
Abstract
In a keyless entry system for a vehicle, an in-vehicle device controls door-lock or door-unlock according to a remote-controlling wireless signal from a transmitter. The in-vehicle device determines whether a demodulated signal compliant with a communications rule is obtained from the received wireless signal, and then whether authentication data included in the received wireless signal accords with that stored in the vehicle. The in-vehicle device stores a result of the determination as an analysis result of received electric waves. When a read-out request is received from a diagnosis tool, the stored analysis result is thereby outputted to the diagnosis tool. Based on the outputted analysis result, it is determined whether a cause of non-operation abnormality is a transmitting function of the transmitter or a receiving function of the in-vehicle device.
8 Citations
5 Claims
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1. A remote-controlled in-vehicle device provided in a vehicle, the device comprising:
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a receiving unit for receiving a remote-controlling wireless signal transmitted from a transmitter when a given manipulation is conducted to the transmitter, demodulating the received wireless signal, and outputting a demodulated signal representing data included in the received wireless signal;
a controlling unit for executing a first determination of whether authentication data included in the outputted demodulated signal accords with authentication data unique to the vehicle, and for controlling a state of the vehicle when the first determination is affirmed;
a receiving state determining unit for executing a second determination of whether the outputted demodulated signal is compliant with a communications rule;
an analysis result storing unit for storing in a storage medium a result from the second determination as an analysis result for received electric waves; and
an analysis result outputting unit for outputting the stored analysis result when a read-out request of reading out the analysis result is received from an external device. - View Dependent Claims (2, 3, 4, 5)
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Specification