System and method for infrared signal-strength RTLS
US9306665B1 · kind B1 · utility
10Cited by
2References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 24, 2014 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Nov 22, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/02
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
System and method of generating a received signal strength indication, the method including: selecting a high power level of a transmitter to be received above a receiver threshold at a predetermined distance from the transmitter; selecting a low power level of the transmitter to be received below the receiver threshold at the predetermined distance; transmitting a marker signal at high power; and adjacent in time to the marker signal, transmitting a power-varying signal, wherein a power of the power-varying signal varies monotonically between the high power level and the low power level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.