High-resolution encoder array
US7995217B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 14, 2008 |
| Grant date | Aug 9, 2011 |
| Priority date | — |
| Expiry date | Feb 13, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/37494
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A position sensing apparatus and method, motion control system, and integrated circuit are provided that include a plurality of sensors and a tracking processor. The plurality of sensors includes a linear array of sensors that sense a plurality of features of an object. A spacing between two of the plurality of sensors is substantially smaller than a spacing between two of the plurality of features. The tracking processor samples signals from the sensors, compares the samples to previous samples and calculates a position of the object. The plurality of sensors may include a second linear array of sensors. Centers of the sensors of the second linear array may be offset from centers of the sensors of the first linear array along a longitudinal axis of the plurality of sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.