Level indicator with alarm
US4965548A · kind A · utility
27Cited by
19References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 9, 1989 |
| Grant date | Oct 23, 1990 |
| Priority date | — |
| Expiry date | Feb 9, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R13/405
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An LED bar graph display is disclosed, which can simultaneously display signal strength and diagnostic information. When an input signal is received, the indicators are selectively operated to display a strength value of the input signal. When a diagnostic condition occurs, the indicators are selectively operated to display the diagnostic condition. Thus, the LED bar graph display performs the dual functions of displaying signal strength and diagnostic information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.