Paging encoder system utilizing a telephone line link
US4103107A · kind A · utility
18Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1977 |
| Grant date | Jul 25, 1978 |
| Priority date | — |
| Expiry date | Mar 9, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/188
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A base station encoder is connected to a decoder terminal and paging transmitter by means of a single voice-pair telephone line link. Automatic operations reduce operator fatigue and operating costs. Digital, tone-keyed gain controls automatically compensate for line losses. All dialing, including long distance and overseas calls, and station identification are done automatically.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.