Surface structure identification unit and circuit, identification method and electronice device
US9864897B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 22, 2016 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | Jan 22, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1318
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a surface structure identification unit including photoelectric sensing element, first and second signal input terminals, trace line, driving module, reset module and evaluation unit. The photoelectric sensing element is connected to the first signal input terminal, and the driving module. The reset module is configured to be connected to the driving module in a reset stage to reset the same. The control terminal of the driving module is configured to be connected to the second signal input terminal and the trace line in a charging stage and disconnected from the trace line in a detecting stage; the first terminal of the driving module is configured to be disconnected from the first signal input terminal in the charging stage and connected to the first signal input terminal in the detecting stage; and a second terminal of the driving module is connected to the trace line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.