Position input device and position input system including the same
US12086332B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2022 |
| Grant date | Sep 10, 2024 |
| Priority date | — |
| Expiry date | Dec 30, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/042
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A position input device includes: a communication circuit receiving slope angle information of a display panel; a code detector detecting a pattern shape image of position code patterns of the display panel by emitting infrared light to the display panel and receiving infrared light reflected from the display panel; a light emitting driver controlling an infrared light emitting operation of the code detector; a slope detector detecting slope angle information of the position input device; and a code processor modulating infrared light emitting characteristics of the code detector or modulating pattern shape image data in response to an arrangement angle information between the display panel and the position input device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.