公开(公告)号：US20230008550A1

公开(公告)日：2023-01-12

申请号：US17774878

申请日：2020-11-10

Applicant: APPLE INC.

Inventor： Nikolai E. BOCK ,  Emanuele MANDELLI ,  Gennady A. MANOKHIN

IPC: H04N5/378 ,  H04N5/3745 ,  H04N5/376 ,  H04N5/341 ,  H04N5/351

Abstract: Various implementations disclosed herein include devices, systems, and methods that buffer events in device memory during synchronous readout of a plurality of frames by a sensor. Various implementations disclosed herein include devices, systems, and methods that disable a sensor communication link until the buffered events are sufficient for transmission by the sensor. In some implementations, the sensor using a synchronous readout may select a readout mode for one or more frames based on how many of the pixels are detecting events. In some implementations, a first mode that reads out only data for a low percentage of pixels that have events uses the device memory and a second mode bypasses the device memory based on accumulation criteria such as high percentage of pixels detecting events. In the second mode, less data per pixel may be readout.

公开(公告)号：US20220394196A1

公开(公告)日：2022-12-08

申请号：US17774727

申请日：2020-11-05

Applicant: APPLE INC.

Inventor： Nikolai E. BOCK ,  Emanuele MANDELLI ,  Gennady A. MANOKHIN

IPC: H04N5/351 ,  H04N5/378

Abstract: Various implementations disclosed herein include devices, systems, and methods that determine a control signal before synchronous readout of a frame (or part of the frame) is performed by a sensor. Various implementations disclosed herein include devices, systems, and methods that determine event density (e.g., a dense row signal or a dense frame signal) before synchronous readout is performed by the sensor. In some implementations, the event camera is capable of operating in a first readout mode and a second readout mode based on a number of events. In the second readout mode, less data per pixel may be readout.