Signal processing system and signal processing method
US12196791B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2023 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Aug 23, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R29/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A highly accurate feature extraction is performed on a signal with temporal variation in amplitude, and this signal is restored to detect a state of a transmission source (output source) of this signal to be normal or abnormal. A signal processing method includes: separating a signal X into an oscillation signal with a constant amplitude X1 and a signal with temporal variation in amplitude X2, the separating performed by a signal separator; performing processing of dimensionality reduction, compression, or the like, on the oscillation signal X1 so as to extract a feature value (information) included in the oscillation signal X1; and outputting a restored signal X1′ that is restored from the oscillation signal X1 by performing processing inverse to the processing of dimensionality reduction, compression, or the like, based on the extracted feature value, performing the processing, the inverse processing, and the outputting performed by a signal X1 restorer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.