Marked hub for sensing motor speed
US7327056B2 · kind B2 · utility
1Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2004 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Apr 6, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/28
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A motor hub is disclosed. The motor hub comprises a housing for a motor. The housing is rotatable around an axis of rotation of the motor. The motor hub also has marks arranged on a surface of the housing, and spaces between the marks. The marks and spaces form a pattern readable for sensing a rotational speed of the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.