Audio tap detection
US9351089B1 · kind B1 · utility
3Cited by
2References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 14, 2012 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Mar 15, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10H2210/071
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Techniques are described for recognizing an audio double tap or other tapped audio sequences generated by a user. Amplitudes of an audio signal are processed to generate an energy function or curve. The energy curve is analyzed to detect audio pulses. Detected pulses are validated and double tap events are detected based on features such as duration, power, and/or symmetry, plus additional rules related to the structure of the audio event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.