Keyless vehicle entry apparatus

Details Keyless vehicle entry apparatus Keyless vehicle entry apparatus

1986-08-04

1988-07-05

Sikes, William L.

Communications: radio wave antennas

Antennas

With vehicle

343712, H01Q 132

Patent

active

047558237

ABSTRACT:
A keyless entry apparatus for locking and unlocking a door, trunk lid, and window of a vehicle uses electric waves radiated from a transmitter which are received by a pickup which is provided on a vehicle body in a concealed state without any external exposure which would impair the aesthetic appearance of the vehicle body. The pickup consists of a loop antenna or an electrostatic detection antenna which detects the surface currents induced on the vehicle body by the electric waves radiated from the transmitter. The pickup is disposed at a portion on which the surface currents are concentrated such as, for example, a front pillar, trunk lid and roof.

REFERENCES:
Abstract of 55-88407 Antenna Device.
Abstract of 60-169204 On Vehicle Antenna System.
Abstract of 60-172804 Antenna System for Vehicle.

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