Imaging rotation angle absolute encoder
US7135673B2 · kind B2 · utility
104Cited by
7References
33Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 29, 2004 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Oct 29, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/35303
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An angle absolute encoder comprises an encoded code rod that has code marks, such as pairs of fine code lines and coarse code lines. Light is reflected from or transmitted through the code marks and detected by a light detector to determine absolute angle position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.