![Data input device power management including beacon state](/abs-image/US/2005/04/14/US20050078085A1/abs.jpg.150x150.jpg)
基本信息:
- 专利标题: Data input device power management including beacon state
- 专利标题(中):数据输入设备电源管理包括信标状态
- 申请号:US10981631 申请日:2004-11-05
- 公开(公告)号:US20050078085A1 公开(公告)日:2005-04-14
- 发明人: Mark Casebolt , Gary Rensberger , Sean Gorman
- 申请人: Mark Casebolt , Gary Rensberger , Sean Gorman
- 申请人地址: US WA Redmond
- 专利权人: Microsoft Corporation
- 当前专利权人: Microsoft Corporation
- 当前专利权人地址: US WA Redmond
- 主分类号: G03F7/004
- IPC分类号: G03F7/004 ; G03F7/038 ; G06F1/32 ; G06F3/03 ; G06F3/033 ; G06F3/038 ; G06F3/042 ; H01H36/00
摘要:
Power management is provided in a user operated data input device utilizing proximity sensing and switching between three or more power states. Switching between the power states occurs based upon the presence or absence of input activity, and an operation instrumentality (e.g., a hand) in close proximity to or contact with the device. Capacitive proximity sensing is carried out be detecting a relative change in the capacitance of a “scoop” capacitor formed by a conductor and a surrounding ground plane. In an optical surface tracking cursor control device embodiment, switching to and from a BEACON state, which provides a reduced flash rate of a surface illuminating light source, is carried out based upon a detected presence or absence of a trackable surface.
摘要(中):
在用户操作的数据输入设备中提供电源管理,利用接近感测和三个或多个功率状态之间的切换。 基于输入活动的存在或不存在以及与设备紧密接触或接触的操作手段(例如,手),在功率状态之间进行切换。 进行电容式接近感测是检测由导体和周围接地层形成的“勺”电容器的电容的相对变化。 在光学表面跟踪光标控制装置实施例中,基于检测到的可跟踪表面的存在或不存在,执行提供表面照明光源的降低的闪光速率的BEACON状态切换和切换。
公开/授权文献:
- US07023425B2 Data input device power management including beacon state 公开/授权日:2006-04-04