System and method of fast transition detection in asynchronous RTLS
US9939512B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2014 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Apr 9, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/74
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
System and method for real-time location, the system including: a base-station comprising: an interface to a secondary technology communication channel, wherein the base-station configured to emit: a first periodic signal on the secondary technology communication channel and having a first repetition rate, to communicate an identification of the base-station; and a second periodic signal on the secondary technology communication channel and having a second repetition rate, to provide a wake-up signal, wherein transmitted energy of the second periodic signal in one period of the second periodic signal is less than transmitted energy of the first periodic signal in one period of the first periodic signal; and a portable tag configured to receive the first and second periodic signals and control its receiver timing based upon the first and second periodic signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.