Luggage door unlocking device for vehicle

Details Luggage door unlocking device for vehicle Luggage door unlocking device for vehicle

1984-04-24

1986-07-22

Weldon, Ulysses

Communications: electrical

Continuously variable indicating

With meter reading

340 63, 34082572, 179 82, G08C 1900

Patent

active

046022554

ABSTRACT:
A luggage door unlocking device for a vehicle, capable of unlocking the luggage door of the vehicle without using an unlocking key includes a portable signal transmitter for transmitting an unlocking signal; signal receiving device provided on the vehicle, for receiving and discriminating the unlocking signal; and a driving device which drives an unlocking mechanism on the basis of the received and discriminated unlocking signal. The signal receiving device has a magnetic sensor, a smoothing circuit which smoothes the reception signal provided by the magnetic sensor and provides a smoothed signal, and a comparator which receives the reception signal and the smoothed signal and allows the reception signal to pass only when the signal level of the reception signal changes beyond the signal level of the smoothed signal. The noise overlapping the reception signal is eliminated by the comparator, whereby an unlocking signal including no noise is fed to the driving device.

REFERENCES:
patent: 3488632 (1970-06-01), Clark
patent: 3569969 (1971-03-01), Lemon
patent: 3879709 (1975-04-01), Yukawa
patent: 3937976 (1976-02-01), McGuirk
patent: 4071714 (1978-01-01), Satoh
patent: 4143368 (1979-03-01), Route et al.
patent: 4317157 (1982-02-01), Eckloff
patent: 4333072 (1982-06-01), Beigel

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