RECEIVER CIRCUIT WITH AUTOMATIC DC OFFSET CANCELLATION IN DISPLAY PORT APPLICATIONS
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United States of America Patent
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Issued Date -
May 30, 2024
app pub date -
Nov 28, 2022
filing date -
Nov 28, 2022
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Abstract
This application is directed to a data interface having an input interface for receiving a differential input signal and a reference interface for providing a predefined reference voltage. A high pass filter is coupled to the input interface, and configured to filter the differential input signal and generate a filtered differential input signal. A differential integrator is coupled to the high pass filter and reference interface, and configured to receive the filtered differential input signal and generate a differential output signal including a first output signal and a second output signal. Each of the first and second output signals has a common mode output voltage substantially equal to the predefined reference voltage. In some embodiments, the data interface includes a connector including a plurality of data lanes and a pair of command pins that are distinct from the data lanes and coupled to the input interface.
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