Cathode-ray display
US4970443A · kind A · utility
0Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1989 |
| Grant date | Nov 13, 1990 |
| Priority date | — |
| Expiry date | Feb 21, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R13/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A cathode-ray display for displaying a trace has a memory to store portions of digitized input signal. An analogue signal is created from the memory and is added to a ramp signal corresponding to the ramp signal utilized to control the field scanning of the cathode-ray display. A further high frequency signal is added to the superimprosed analogue signal and ramp signal. The resultant combined signal is supplied to voltage discrimination means which control a switch which, in turn, controls the electron gun of the cathode-ray display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.