Method and apparatus for evaluating yarn signals having an at least approximately periodic component
US4152931A · kind A · utility
6Cited by
2References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 17, 1978 |
| Grant date | May 8, 1979 |
| Priority date | — |
| Expiry date | Feb 17, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/31
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for evaluating yarn signals having at least an approximately periodic component superimposed on an irregularity provides for determining the polarity values of successive signal components using a comparator and the evaluation of coincidence of such polarity values during a predetermined period using counting means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.