Methods and apparatus to generate threshold values for state detection
US9332305B1 · kind B1 · utility
22Cited by
10References
22Claims
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Key dates
| Filing date | Jan 13, 2015 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Jan 13, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4532
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus to generate threshold values for state detection are disclosed. An example apparatus includes a collection of audio data elements each representative of a sound level present in an environment at a time of an ON-indication, an oldest one of the audio data elements to be replaced in response to detection of an ON-indication in the environment; and a selector to select, for a value of a threshold condition of a state detection analysis, one of the audio data elements corresponding to a quietest sound level.
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