Electronic communication module for locking/unlocking a movable panel of a motor vehicle, associated control central processing unit, and hands-free access system
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United States of America Patent
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Jun 12, 2018
Issued Date -
Mar 20, 2014
app pub date -
Dec 14, 2011
filing date -
Dec 15, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention relates to an electronic communication module (2) for locking/unlocking at least one movable panel of a motor vehicle, including a resonant circuit adjusted to a timing frequency and including an transmission winding (20) connected in series to a tuning capacitor (21), said resonant circuit (20, 21) being capable of emitting a low-frequency interrogation signal, at said tuning frequency, to a portable badge or identifier, and a manually-actuated triggering member (22), the actuation of which triggers the transmission of said interrogation signal. According to the invention, the triggering member is a button switch (22) connected in series to at least one resistor (23) in order to form an electric dipole (24), and said electric dipole (24) is electrically connected in parallel to all or part of the resonant circuit (20, 21). The invention also relates to a central processing unit (3) for controlling said module through two electrical connection wires (4, 5), and to an associated hands-free access system.
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