Personal location and message system and unit
US5729196A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1996 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | Oct 17, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/185
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A portable receiving/transmitting unit is adapted to communicate with a master station, the master station being associated with a plurality of base stations, a plurality of pagers and a plurality of individual receiving/transmitting units. The portable receiving/transmitting unit includes, integrated into one unit, structure for receiving a data string encoding a personal message which is broadcasted by the master station together with a unit identifying code through a plurality of pagers; structure for conveying the broadcasted message to the operator of the receiving unit identified by the identifying code; and structure for generating a message and for transmitting it from the portable unit to the receiving base stations together with a unit identifying code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.