Time and location based computing
US5642303A · kind A · utility
377Cited by
3References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 1995 |
| Grant date | Jun 24, 1997 |
| Priority date | — |
| Expiry date | May 5, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S1/68
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Utilizing a simple, low-cost beacon and receiver technology to allow users to build their own infrastructure by placing beacons in key locations provides intelligent location awareness. This location awareness can be leveraged by the computer electronic equipment that the user is carrying, needs no networking or server infrastructure, works indoors, has no line-of-sight restrictions, is compact and inexpensive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.