Display pager with separate readout module
US4704740A · kind A · utility
119Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1987 |
| Grant date | Nov 3, 1987 |
| Priority date | — |
| Expiry date | Feb 9, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J1/047
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A liquid crystal display module with self contained display decoder circuitry is attached to a radio frame with a minimum of electrical interconnections. Module assembly and attachment are both accomplished without the use of tools. Attaching the module to the frame interlocks the module to prevent accidental disassembly and places a preload force on the electrical interconnections to insure good electrical continuity. Ambient light reflection provides primary display illumination while lamps, controlled by an integral switch, provide secondary illumination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.