Method of estimating a distance
US7995188B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2005 |
| Grant date | Aug 9, 2011 |
| Priority date | — |
| Expiry date | Jan 5, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J25/308
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method of estimating a distance to a surface, whereby an emitter emits light towards a surface, at least some light being reflected by the surface, the surface comprising a detectable feature, the reflected light being received by a first receptor and by a second receptor, the surface being in movement relative to the receptors, the first and the second receptor receiving the light reflected at a first and at a respectively second angle thereby producing a first and a respectively second dataset, each dataset including data representing said feature, the first and the second angle being different, whereby the distance is estimated using the first and the second dataset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.