| 摘要 |
A method and apparatus for generating a reference voltage potential, also known as an input switching reference, using differential clock signals or other differential signals that ideally have a 180 degree phase shift is provided. The differential signals are generated by a transmitting circuit. The reference voltage potential is dependent on the differential signals. The voltage potentials of the differential signals are averaged and low-pass filtered. Comparators in a receiving circuit compare an input signal's voltage potential to the reference voltage potential to determine if the transmitted input signal is a binary one or binary zero.
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