Patent · US Active

Rotatable crown for an electronic device

US12104929B2 · kind B2 · utility

0Cited by

399References

21Claims

0Family size

Assignee

Apple Inc. · US

Inventors

Tyler S. Bushnell · Mountain View, US
Adam T. Clavelle · San Francisco, US
Christopher M. Werner · Cupertino, US
Colin M. Ely · Cupertino, US
Stephen N. Sweet · San Jose, US
Sriram Moorthy · Cupertino, US
Huan-Kuang PENG · Xihu, TW

Key dates

Filing date	Jan 23, 2020
Grant date	Oct 1, 2024
Priority date	—
Expiry date	Jun 25, 2042

Classification

Technology area (CPC G)Physics
CPC primaryG04G21/00
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A compact crown for an electronic device such as an electronic watch, including a set of wipers capable of determining a rotation angle, rotation direction, or rotation speed, is disclosed. The set of wipers is in contact with at least one resistance member at different angular positions around a rotation axis. The crown may have a group of ground taps disposed along the resistance member and a measured signal may vary based on the position of each wiper as it contacts the at least one resistance member. A compact crown may also include capacitive members and capacitive sensors in order to similarly determine rotation angle, rotation direction, or rotation speed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.