CIRCUITS AND METHODS FOR DEBOUNCING SIGNALS PRODUCED BY A ROTARY ENCODER
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United States of America Patent
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Issued Date -
Oct 5, 2023
app pub date -
Mar 28, 2023
filing date -
Mar 28, 2023
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Abstract
A first input node receives a first input signal and a second input node receives a second input signal. The first and second input signals are in phase quadrature. An edge detector circuit senses the first input signal and produces a pulsed signal indicative of edges detected in the first input signal. A pulse skip and reset circuit senses the pulsed signal and the second input signal, and produces a reset signal indicative of pulses detected in the pulsed signal while the second input signal is de-asserted. A sampling circuit senses the second input signal and the reset signal, and produces an output signal that is deasserted in response to assertion of the second input signal and is asserted in response to a pulse being detected in the reset signal.
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