Display apparatus
US4187505A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1977 |
| Grant date | Feb 5, 1980 |
| Priority date | — |
| Expiry date | Oct 31, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/60
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Display apparatus for displaying the magnitude of a physical parameter includes a plurality of display regions each of which contains a plurality of electrically-operable display sections. The display apparatus also includes an electric circuit means responsive to an electric signal representative of the said magnitude which is arranged to operate the display sections in a cyclic manner in accordance with that magnitude. To this end, the electric circuit means is arranged, during a first period of each cycle, to effect operation of any display regions in which all sections therein require to be operated and, during a second period of each cycle, to effect appropriate operation of any other display region in which only at least one of the display sections thereof require to be operated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.