Interpolation device
US5706219A · kind A · utility
9Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1996 |
| Grant date | Jan 6, 1998 |
| Priority date | — |
| Expiry date | Jan 30, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/24409
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An interpolation device for executing an interpolation of cyclic analog signals includes an analog-digital converter which converts the analog signal to a digital signal. A digital filter removes a high-frequency component of the output digital signal from the analog-digital converter, and the filtered digital signal is interpolated by an interpolation section. Therefore, the deviation of the lower several bits of the digital signal to be inputted to the interpolation section is suppressed so as to prevent the degrading of the accuracy due to such deviations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.