Method and apparatus for partial coverage zone selective call communication
US6108544A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 1997 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | May 29, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/185
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communication system (10) has a plurality of selective call transceivers (30) which operate as one-way selective call receivers in one-way coverage zones (16) where no registration is required or operate as selective call transceivers in two-way coverage zones (36) where registration is required or operate in one-and-a-half way zones where registration is attempted but not required for the selective call transceiver to receive outbound messages. The system further comprises a plurality of outbound transmitters (17, 18, and 19) covering one-way coverage zones (12, 14, and 16 respectively) and a plurality of base receivers (37, 38, and 39) and transmitters (11, 13, and 15) covering two-way coverage zones (32, 34, and 36 respectively). The one-and-half-way zone is primarily a mode of operation useful in areas having "spotty" inbound coverage and is not necessarily designated by a geographic location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.