Circuit for producing a video signal representing a measuring signal
US4700227A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1986 |
| Grant date | Oct 13, 1987 |
| Priority date | — |
| Expiry date | Apr 23, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G1/162
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A circuit for producing a video signal representing a measuring signal is already known, said circuit comprising a video storage circuit, a horizontal address control circuit for controlling said video storage circuit, a circuit for producing a vertical signal and a comparator circuit which, when the vertical signal essentially corresponds to a signal derived from the video storage circuit, produces a comparison signal representative of a point of the measuring signal in the instantaneously produced line of the video signal. For the purpose of improving the measuring signal representation quality, the invention provides the feature that a video D/A converter and a low-pass filter circuit are inserted between the video storage circuit and the comparator circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.