Invention Grant
- Patent Title: Finger pointing apparatus
- Patent Title (中): 手指指点仪
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Application No.: US12192027Application Date: 2008-08-14
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Publication No.: US08373656B2Publication Date: 2013-02-12
- Inventor: Zifeng Hou , Jinping Yang , Cheng Lv
- Applicant: Zifeng Hou , Jinping Yang , Cheng Lv
- Applicant Address: CN Beijing
- Assignee: Lenovo (Beijing) Limited
- Current Assignee: Lenovo (Beijing) Limited
- Current Assignee Address: CN Beijing
- Agency: Kinney & Lange, P.A.
- Priority: CN200710120316 20070815
- Main IPC: G06F3/014
- IPC: G06F3/014

Abstract:
A finger pointing apparatus is disclosed. In one aspect the finger pointing apparatus includes at least one pressure sensor fixed on a hand for triggering a corresponding electromagnetic wave transmitter to transmit electromagnetic wave when pressure is produced by a finger contacting an external object. In another aspect, the finger pointing apparatus includes at least one electromagnetic wave transmitter connected with a corresponding pressure sensor and fixed on the hand for transmitting electromagnetic wave to all electromagnetic wave receivers when pressure is detected by the pressure sensor. In one aspect, the finger pointing apparatus includes at least two electromagnetic wave receivers arranged at fixed positions with respect to each other for receiving electromagnetic wave from the at least one electromagnetic wave transmitter and transmitting received electromagnetic wave to a microprocessor. In another aspect, the finger pointing apparatus includes a microprocessor for receiving electromagnetic wave from the electromagnetic wave receivers, calculating coordinate values of a position pressed by the finger from electromagnetic wave from different electromagnetic wave receivers and outputting the coordinate values.
Public/Granted literature
- US20090046059A1 FINGER POINTING APPARATUS Public/Granted day:2009-02-19
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