Error detecting unit for a rotational detector
US5185563A · kind A · utility
0Cited by
9References
3Claims
0Family size
Inventors
Key dates
| Filing date | Oct 23, 1990 |
| Grant date | Feb 9, 1993 |
| Priority date | — |
| Expiry date | Oct 23, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P13/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An error detecting unit for a rotational detector which outputs two kinds of pulse signals whose frequency according to rotation is equal and whose phase is different including counters for detecting whether or not either a rising or a falling edge of the two kinds of pulse signals appears alternately so as to detect an error of the corresponding rotational detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.