Patent ID: 11928802
Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 2:
3. The apparatus for acquiring a depth image according to claim 2, wherein the photoelectric signal reading circuit is controlled by a read control signal to output the pixel signal, wherein the pixel signal of the each pixel unit comprises a first phase pixel signal, a second phase pixel signal, a third phase pixel signal, and a fourth phase pixel signal, wherein phase differences between the read control signals corresponding to the first phase pixel signal, the second phase pixel signal, the third phase pixel signal, and the fourth phase pixel signal respectively are 90°, and the processing unit generates the sparse depth image based on the first phase pixel signal, the second phase pixel signal, the third phase pixel signal, and the fourth phase pixel signal, and the phase of the read control signal corresponding to the obtained first phase pixel signal is the same as the phase of the emission pulse.