公开(公告)号：US20250110580A1

公开(公告)日：2025-04-03

申请号：US18733704

申请日：2024-06-04

Applicant: Apple Inc.

Inventor： Peng Zhao ,  David D. Dashevsky ,  Mieczyslaw M. Dabrowski

IPC: G06F3/03

Abstract: An assembly includes a rotatable and translatable input device having an axis of rotation, a circumference about the axis of rotation, and an optical encoder pattern disposed around the circumference. The optical encoder pattern includes a series of polygon facets about the circumference and a one-dimensional substantially retroreflective feature parallel to the axis of rotation. The assembly further includes an optical emitter configured to emit electromagnetic radiation toward the optical encoder pattern, and an optical receiver including a two-dimensional array of pixels. The optical receiver is configured to receive reflections of the emitted electromagnetic radiation from the optical encoder pattern and generate an irradiance pattern in response to the reflections. The optical emitter and the optical receiver are disposed along a sensing axis orthogonal to the axis of rotation.

公开(公告)号：US20250109970A1

公开(公告)日：2025-04-03

申请号：US18671832

申请日：2024-05-22

Applicant: Apple Inc.

Inventor： Anand K. Chamakura ,  Dong Zheng ,  Mieczyslaw M. Dabrowski ,  David D. Dashevsky

IPC: G01D5/347

Abstract: An electronic device includes a shared epitaxial structure, an array of photodiodes formed in the shared epitaxial structure, and a readout circuit. The array of photodiodes is disposed between a first axis and a second axis, with the second axis orthogonal to the first axis. The array of photodiodes has an absence of guard structures between adjacent photodiodes. The readout circuit is electrically connected to the array of photodiodes and operable to read out values for different photodiodes or different subsets of photodiodes in the array of photodiodes.