Circuit for controlling a ration meter
US5142412A · kind A · utility
7Cited by
16References
61Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1989 |
| Grant date | Aug 25, 1992 |
| Priority date | — |
| Expiry date | Dec 19, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R7/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A circuit for controlling a ratio meter, the circuit having an input stage for generating a digital signal representative of a parameter to be displayed, memory to enable the digital signal to be encoded on the basis of a pre-defined sine, cosine, or tangent function, with the memory being addressed by intermediate significant bits in the digital signal, and an interpolator for correcting the signal from the memory on the basis of the least significant bits of the digital signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.