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

Claim 3:
4. A circuit comprising:
an equalizer having an input and an output;
a sampler or a slicer having an input coupled to the output of the equalizer and having an output;
a deserializer having an input coupled to the output of the sampler or slicer, and having outputs;
exclusive OR gates having inputs coupled to the outputs of the deserializer, and having outputs;
a digital low-pass filter having inputs coupled to the outputs of the exclusive OR gates 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 or slicer; 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.