Rotation sensor for a crown of an electronic watch
US12189347B2 · kind B2 · utility
0Cited by
427References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2022 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Jul 5, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P13/045
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electronic watch may include a housing and a crown configured to receive a rotational input. The crown may include a knob external to the housing, a rotor coupled to the knob and configured to rotate in response to the rotational input, the rotor defining a recess extending about a circumference of the rotor, and a coating positioned in the recess and configured to reflect at least a portion of light incident on the coating. The electronic watch may further include an optical sensing system configured to detect the rotational input using the reflected portion of the light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.