Keyless entry system
AssigneeAlps Electric Co., Ltd.
InventorKatsuhiro SEINO
Life of this patent
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Abstract
A keyless entry system includes an on-vehicle unit which is mounted in a vehicle, and a mobile device which is able to perform radio communication with the on-vehicle unit. The keyless entry system controls on-vehicle equipment mounted in the vehicle through radio communication between the on-vehicle unit and the mobile device. The on-vehicle unit has a plurality of LF transmission antennas (transmission antennas) for radio-transmitting a signal to the mobile device, and at least one of the plurality of LF transmission antennas is arranged in the vehicle interior of a door of the vehicle and is attached such that radiating magnetic flux passes through the window of the vehicle.
Claims4
A keyless entry system for controlling on-vehicle equipment mounted in a vehicle through radio communication, the keyless entry system comprising:
- an on-vehicle unit mounted in a vehicle;
- a mobile device configured to perform radio communication with the on-vehicle unit,
- wherein the on-vehicle unit comprises a plurality of transmission antennas for radio-transmitting a signal to the mobile device, the plurality of transmission antennas including at least one antenna disposed on a vehicle interior side of a door of the vehicle such that magnetic flux radiated from the antenna passes through a window of the vehicle.
Dependencies are inferred from the claim text.