Detection of objects based on change in wireless signal
US11335177B2 · kind B2 · utility
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3References
12Claims
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Key dates
| Filing date | Sep 22, 2017 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Dec 11, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0167
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An example device includes a monitoring engine. The monitoring engine is to measure a characteristic of a wireless signal related to a path of the wireless signal. The wireless signal includes data from a remote source. The device includes an analysis engine to determine that an object is within a proximity threshold of a user based on the characteristic of the wireless signal. The device includes an indication engine to indicate to the user that the object is within the proximity threshold of the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.