Data recovery using edge detection
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United States of America Patent
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Feb 5, 2019
Grant Date -
Dec 7, 2017
app pub date -
Jun 6, 2017
filing date -
Jun 6, 2016
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Abstract
Circuits, methods, and apparatus that may reconstruct a data signal in the presence of ground drift and high-frequency signal coupling. An illustrative embodiment of the present invention may reconstruct a received data signal by taking an finite difference of the received data signal, detecting edges of the received data signal by detecting positive and negative peaks of the finite difference of the received signal, and reconstructing the received data signal using the detected edges. Taking a finite difference of the received data signal removes the DC component of the received data signal, as well as the ground drift that may cause the DC component of the received data signal to change over time. Additional filtering may be used to reduce high-frequency signal coupling and power supply inductive coupling.
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