US 12,141,514 B1
Method and system for tracing and identifying target signals by cross-correlation to a signal pattern for a circuit
Yuval Gilad, Cedar Park, TX (US)
Assigned to Cadence Design Systems, Inc., San Jose, CA (US)
Filed by Cadence Design Systems, Inc., San Jose, CA (US)
Filed on Dec. 8, 2021, as Appl. No. 17/545,813.
Int. Cl. G06F 30/367 (2020.01); G06F 3/14 (2006.01)
CPC G06F 30/367 (2020.01) [G06F 3/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system to trace and identify target signals by cross-correlation to a signal pattern for a circuit, the system comprising:
a data processing system comprising memory having machine-executable instructions stored thereon that when executed by one or more processors cause the one or more processors to:
identify a target signal among a plurality of signals propagating through a circuit;
detect one or more reference signals associated with an input to the target signal, the reference signals satisfying a threshold based on a depth associated with the target signal and the circuit;
generate a cross-correlation object between the target signal and the reference signals based on a waveform of the target signal and corresponding waveforms of the reference signals;
generate a metric corresponding to a cross-correlation between at least a portion of the target signal and at least a portion of the cross-correlation object; and
modify, based on the metric, a control object of the circuit, the control object being associated with the target signal; and
modify a presentation of the control object at a graphical user interface.