Invention Grant
US08730167B2 Pointing device with optical positioning on low-diffusive surfaces
有权
在低扩散表面上具有光学定位的指示装置
- Patent Title: Pointing device with optical positioning on low-diffusive surfaces
- Patent Title (中): 在低扩散表面上具有光学定位的指示装置
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Application No.: US11770069Application Date: 2007-06-28
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Publication No.: US08730167B2Publication Date: 2014-05-20
- Inventor: Hai Ming , Wei Huang , Jianping Xie , Huaqiao Gui , Tianpeng Zhao , Jun Xu , Yuan Kong
- Applicant: Hai Ming , Wei Huang , Jianping Xie , Huaqiao Gui , Tianpeng Zhao , Jun Xu , Yuan Kong
- Applicant Address: US WA Redmond
- Assignee: Microsoft Corporation
- Current Assignee: Microsoft Corporation
- Current Assignee Address: US WA Redmond
- Agent Jeremy Snodgrass; Glen Johnson; Micky Minhas
- Main IPC: G06F3/033
- IPC: G06F3/033 ; G09G5/08
Abstract:
A computer input device includes a light source assembly forming an incident light beam that strikes an area on a surface beneath the input device with large incident angle. A light sensing assembly in the input device is positioned to receive scattered light and includes a band-pass filter. A barrier is located directly above the area where the light beam is incident on the top surface to prevent light from traveling directly from the light source assembly to the light sensing assembly.
Public/Granted literature
- US20090002347A1 Pointing Device with Optical Positioning on Low-Diffusive Surfaces Public/Granted day:2009-01-01
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