Magnetic presence detection of a smartphone
US9900055B1 · kind B1 · utility
0Cited by
7References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 1, 2017 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Feb 1, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method for magnetic presence detection. A magnetic proximity detector is associated with a tag, wherein the tag transmits particular data when a mobile device is detected by the magnetic proximity detector, which can avoid needless battery consumption by the tag and/or the mobile device. A filter can be employed to filter out noisy magnetic signals so as to enhance a detection capability by the magnetic proximity detector and facilitate detection of the mobile device by the magnetic proximity detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.