Imaging system with time-of-flight sensing
US11743616B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2020 |
| Grant date | Aug 29, 2023 |
| Priority date | — |
| Expiry date | Sep 20, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A time-of-flight (TOF) sensing system may include an illumination module and a sensor module. The sensor module may include an array of sensor pixels, pixel-level readout circuitry, and column-level readout circuitry coupled to the pixel-level readout circuitry via corresponding column lines. Pixel-level readout circuitry may be provided on a per-pixel basis (e.g., dedicated or unshared per-pixel readout circuitry may be provided for each pixel). Pixel-level readout circuitry may include one or more correlated double sampling stages and a storage stage. The storage stage may include a set of capacitors each configured to store different phase data generated by a corresponding pixel for a TOF sensing operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.