Interpolation apparatus for digital electronic position measuring instrument
US4225931A · kind A · utility
40Cited by
0References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 15, 1978 |
| Grant date | Sep 30, 1980 |
| Priority date | — |
| Expiry date | Jun 15, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/207
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An interpolation process is described for use with an incremental position measuring device which produces a periodic analog output signal. The output signal is digitized and then applied as an input to a digital computer programmed to calculate the interpolation value of the signal. In the preferred embodiment the computer is also programmed to apply a number of corrections to the digitized signal prior to interpolation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.