Orientation discrimination in a position-coding pattern
US7248250B2 · kind B2 · utility
22Cited by
8References
63Claims
0Family size
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Key dates
| Filing date | Oct 20, 2003 |
| Grant date | Jul 24, 2007 |
| Priority date | — |
| Expiry date | Aug 9, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/19
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A position code is applied on a surface to code positions in one or more directions. The code is based on a main number series which has the property that the place in the main number series of each number sequence of a first predetermined length is unambiguously determined. A position is determined based on one or more such number sequences of the first predetermined length. The orientation of the position code is discriminable from the main number series, but only for number sequences of a second predetermined length that exceeds the first predetermined length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.