Integrated communication system
US5574771A · kind A · utility
64Cited by
11References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 1994 |
| Grant date | Nov 12, 1996 |
| Priority date | — |
| Expiry date | Aug 15, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A telephone or two-way digital paging communication system providing an alternative partial communication format in which an acknowledgement signal is transmitted from a telephone device in response to a received voice or data signal. The communication system is switchable between different types of communication formats including full two-way voice or data service, partial two-way service and one-way pager service. The communication system may be implemented in a cellular network in which a portable cellular telephone is adapted to transmit signals at different transmission rates so as to increase its operable range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.