Electronic selector and method for selecting desired functions and levels
US4754423A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 16, 1986 |
| Grant date | Jun 28, 1988 |
| Priority date | — |
| Expiry date | Jun 16, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04G15/006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This is a selector circuit for an electronic device such as a pager that has a plurality of functions with each of the functions having a plurality of levels. First and second switches are provided for selecting the functions and levels. A controller such as a microprocessor is responsive to the first and second switches for selecting the functions and levels. The functions are selected by first actuating the first switch and then actuating the second switch while the first switch is maintained actuated. Levels of selected functions are selected by first actuating the second switch and then actuating the first switch while the second switch is maintained actuated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.