System and method for implementing real-time adaptive threshold triggering in acoustic detection systems
US7536301B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2005 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Dec 3, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2025/786
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method to generate a trigger signal based on a real-time adaptive threshold. The system may include a microphone to receive an audio signal, a device to generate a trigger signal based on a real-time adaptive threshold coupled to the microphone to form an adaptive threshold and generate a trigger signal if a magnitude of the audio signal is greater than a magnitude of the adaptive threshold. The system may also include a waveform capture module coupled to the microphone to receive the audio signal and convert the audio signal into a series of waveform packets and a waveform analysis processor to extract characteristics from the waveform packets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.