Patent ID: 11953629
Assignee: GUANGZHOU TYRAFOS SEMICONDUCTOR TECHNOLOGIES CO., LTD
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 11:
12. The ranging method as claimed in claim 11, wherein the time-to-digital converter further comprises a controller, a first switch, and a plurality of second switches,
wherein a first terminal of the first switch is coupled to the sensing sub-pixel, a second terminal of the first switch is coupled to a first terminal of the second switches, and a second terminal of the second switches is coupled to the counting units,
wherein the counting circuit outputs a first switching signal to the first switch, and the controller outputs a plurality of second switching signals to control the second switches,
wherein when the sensing sub-pixel provides the sensing signal, the first switch is turned on and at least one of the second switches is turned on, so that the sensing signal is written into one of the counting units,
wherein the sensing signal is a single photon sensing signal.