Edge detector
US6737665B1 · kind B1 · utility
5Cited by
6References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2002 |
| Grant date | May 18, 2004 |
| Priority date | — |
| Expiry date | Feb 26, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/183
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of detecting the passage of an edge of a moving sheet of material at a position comprising: monitoring a state of motion at a position; and determining a time of an edge of the sheet at a position as a time at which a change in a state of motion at the position is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.