Xiaomi Inc.

Boe Technology Group Co., Ltd.

Beijing Xiaomi Mobile Software Co., Ltd.

Beijing Boe Display Technology Co., Ltd.

Beijing Boe Sensor Technology Co., Ltd.

Research Institute of Millimeter Wave and Terahertz Technology

Chong Guo

Xiaolong Chen

Ling Zhu

Xiaowei Hu

Haipo Zhang

Wei Hong

Chuncheng Che

Ji Min Zhang

Yujia Wang

Meng Wei

Zifei Dou

Zheng Bian

Xinyu Wu

Hongyuan Feng

Fengshuo Wan

Dongsheng Xu

Longzhu Cai

Zhihao Jiang

Xueyan Su

Yongyong Zhang

A phase calibration method for a phased array antenna is provided. The method includes: sequentially calibrating M×N antenna units based on a pre-obtained test voltage set including first test voltages; sequentially loading the first test voltages to the antenna unit in the ith row and the jth column, and acquiring phase and amplitude information of a microwave signal radiated by the antenna unit every time one first test voltage is loaded; acquiring first array vectors through analysis based on the phase and amplitude information of the acquired microwave signals of the antenna unit under different first test voltages; obtaining a calibration response vector of the antenna unit under each first test voltage in the test voltage set through a first preset algorithm based on the first array vector, and determining a target voltage-phase curve corresponding to the antenna unit in the ith row and the jth column.

Phase calibration method and apparatus for phased array antenna

An image acquisition method, an image acquisition device and a storage medium are provided. The method includes: acquiring a preview image collected by a camera; detecting a target area in the preview image based on a preset composition model; and in response to detecting the target area, acquiring an image including the target area as a target image.

Image acquisition method, image acquisition device, and storage medium

The present disclosure provides a worktable for testing a liquid crystal panel. In one embodiment, the worktable for testing the liquid crystal panel includes: a table body, an upper surface of which being formed with a mounting groove in order to form a light-transmittance region; wherein, the table body is further formed with a slot that has an opening in a side surface of the table body and that is configured to mount a lower polarizer therein so that the lower polarizer at least covers the light-transmittance region. The present disclosure also provides a test apparatus including the mentioned worktable.

Worktable for liquid crystal panel test, and liquid crystal panel test apparatus

A method for a device to adjust a shooting parameter, includes: receiving a click signal triggered from a viewfinder displayed on a touchscreen; displaying, by taking a click position indicated by the click signal as a reference position, an adjusting control corresponding to a shooting parameter; receiving a sliding touch signal indicating a sliding touch operation on the adjusting control; and adjusting the shooting parameter according to the sliding touch signal.

Shooting parameter adjustment method and device

Display screen or portion thereof with animated graphical user interface

A method for performing time-delay photographing, includes: displaying a photographing interface including a shutter operation control, wherein the shutter operation control further includes a shutter button and a time-setting region outside the shutter button; determining a delay time for photographing according to the time-setting region; and photographing according to the delay time.

Method and device for time-delay photographing

Growing community of inventors

Beijing, China

Chong Guo