Apparatus and method for detecting vibration patterns
US5201292A · kind A · utility
34Cited by
10References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 30, 1991 |
| Grant date | Apr 13, 1993 |
| Priority date | — |
| Expiry date | Aug 30, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electronic detection system for detecting vibration patterns from physical events, such as engine knocking or articulated speech, senses a vibration source with a wideband transducer to provide a sensed signal, then converts this signal to energy amplitude and spectral frequency form to extract detectable features of the vibration pattern. Events are detected when a controller determines that the sensed energy and spectral data exceed adaptively-predetermined energy and spectral thresholds, preferably for a duration exceeding predefined time windows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.