发明授权
- 专利标题: CONTACTLESS SENSING INPUT DEVICE
- 专利标题(中): 非接触式测量输入设备
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申请号: EP02792910.8申请日: 2002-12-05
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公开(公告)号: EP1456807B1公开(公告)日: 2009-08-19
- 发明人: KLINGHULT, Gunnar
- 申请人: Sony Ericsson Mobile Communications AB
- 申请人地址: 221 88 Lund SE
- 专利权人: Sony Ericsson Mobile Communications AB
- 当前专利权人: Sony Ericsson Mobile Communications AB
- 当前专利权人地址: 221 88 Lund SE
- 代理机构: Asketorp, Göran
- 优先权: US342982P 20011221; US343066P 20011221; US154252 20020523
- 国际公布: WO2003054782 20030703
- 主分类号: G06K11/06
- IPC分类号: G06K11/06 ; G06F3/033 ; G09G5/28
摘要:
A user input apparatus and method for providing control for an electronic device uses contactless sensing. The user input device includes a substantially circular disk having at least one ferromagnetic plate located adjacent to a periphery of the disk and coupled to the disk. The input device also includes a magnet and a magnetic sensor adjacent to the magnet and with magnetic sensor's sensitivity axis oriented parallel to the magnet. The magnet and the magnetic sensor are situated near the periphery of the disk on a circuit board such that, as the disk is rotated, the ferromagnetic plates coupled to the disk pass within a predetermined distance from the magnet but do not contact the magnet or the magnetic sensor. The magnetic sensor outputs a signal when the at least one ferromagnetic plate passes within the predetermined distance from the magnet. The input device is also configured to enable a user to detect a rotational resistance of the disk when the ferromagnetic plate passes within the predetermined distance from the magnet, thereby providing a tactile feedback to the user of the input device.
公开/授权文献
- EP1456807A1 CONTACTLESS SENSING INPUT DEVICE 公开/授权日:2004-09-15
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