Rotational sensor mechanical limiter for automatic calibration
US6681647B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2002 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Aug 2, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20888
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Embodiments of the present invention are directed to preventing calibration of a device to exceed the full design travel, for instance, during aggressive operation or play. A limiter is coupled to the rotational sensor to limit the full travel output signal to a fixed and repeatable maximum value no matter how aggressive the operation or play becomes. The limit is desirably set at such a point as normal operation or play will always reach. In this way, the automatic calibration of the device will not exceed the full design travel. In one embodiment, an input device comprises a user manipulable object configured to rotate around a rotational axis relative to a base. A rotational sensor includes a sensor body coupled with a sensor shaft which is rotatable relative to the sensor body around the rotational axis. The sensor shaft is connected with the user manipulable object to rotate with the user manipulable object around the rotational axis. An actuator is coupled with the user manipulable object to rotate with the user manipulable object. The actuator is configured to be coupled with the sensor body, after the user manipulable object has rotated to reach a preset limit, to rotate th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.