| 发明名称 | Active stylus | ||
| 摘要 | An active stylus is disclosed. The stylus includes an electrode at a tip of the stylus; and powered circuitry coupled to the electrode and configured for capacitively coupling the electrode with a capacitive touch sensor panel. The powered circuitry can further include drive circuitry configured to output a drive voltage at the electrode and/or sense circuitry configured to sense a voltage received at the electrode. | ||
| 申请公布号 | US9519361(B2) | 申请公布日期 | 2016.12.13 |
| 申请号 | US201414578051 | 申请日期 | 2014.12.19 |
| 申请人 | Apple Inc. | 发明人 | Harley Jonah A.;Simon David I. |
| 分类号 | G06F3/045;G06F3/0354;G06F3/044;G06F3/038 | 主分类号 | G06F3/045 |
| 代理机构 | Morrison & Foerster LLP | 代理人 | Morrison & Foerster LLP |
| 主权项 | 1. An active stylus, comprising: an electrode at a tip of the stylus; powered circuitry coupled to the electrode and configured to capacitively couple the electrode with a capacitive touch sensor panel, the powered circuitry comprising: a clock to generate a drive voltage;a microcontroller connected to the clock and configured to control the drive voltage; andan amplifier connected to the microcontroller and configured to adjust the drive voltage and output the drive voltage at the electrode; and a wireless transceiver configured to synchronize the active stylus and the capacitive touch sensor panel. | ||
| 地址 | Cupertino CA US | ||