Data-driven clock port and clock signal recognition
US12242783B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2022 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Jul 14, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2119/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Operations to recognize clock ports within a simulation circuit component and/or recognize a clock signal within simulation waveforms are described. One or more of the operations include generating a plurality of output values at an output port of a circuit simulation component by applying, during a simulation, a plurality of input values to a first input port of the circuit simulation component. The operations also include calculating a correlation vector based on bit sequences in the input values and bit sequences in the output values. The first input port is determined to be a clock port by applying a machine learning model to the correlation vector. One or more of the operations include determining a waveform file comprising signals from a simulation, determining a subset of the signals are bit-level signals, calculating toggle metrics for the subset of the signals, identifying a signal from the subset with a toggle metric satisfying a toggle threshold, calculating, by a processor, multiple duty cycles for the signal, and determining the signal is a clock signal based on the multiple duty cycles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.