Method and circuit for generating diamond markers
US4092567A · kind A · utility
5Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 17, 1976 |
| Grant date | May 30, 1978 |
| Priority date | — |
| Expiry date | Mar 17, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R13/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A diamond marker generator circuit generates a diamond-shaped marker making a spot or point on a curve of an input signal being measured. Despite changes in the display or sweep rate of the input signal, the marker's size is kept constant, and its intensity or contrast is maintained at a constant level relative to the intensity of the curve. One marker is generated above the curve to mark a current point of interest to a user. One or more markers are generated below the curve to mark previous points of interest.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.