Patent ID: 11968287
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A circuit comprising:
an equalizer having an input and an output;
a sampler having an input coupled to the output of the equalizer and having an output;
delay circuitry having an input coupled to the output of the sampler, and having an output;
an exclusive OR gate having a first input coupled to the output of the sampler, having a second input coupled to the output of the delay circuitry, and having an output;
a low-pass filter having an input coupled to the output of the exclusive OR gate and having an output, the low-pass filter configured to provide a data transition density measurement for a sequence of data units at the output of the sampler; and
comparator circuitry having an input coupled to the output of the low-pass filter and having an output coupled to the input of the equalizer, the comparator circuitry configured to compare the data transition density measurement to a threshold and indicate a disruptive pattern in the sequence of data units.