发明名称 |
Electronic device with trackball user input |
摘要 |
A portable radio telephone comprising a housing, a transceiver located in the housing, a controller connected to the transceiver, a display connected to the controller, and a user input device connected to the controller. The user input device comprises a trackball movably connected to the housing and at least one trackball rotational position sensor connected to the controller for sensing rotational movement of the trackball. The sensor includes a roller which rides against an exterior surface of the trackball. The user input device is configured to provide biased stepwise movements of the roller as the trackball is rotated by a user.
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申请公布号 |
US6480185(B1) |
申请公布日期 |
2002.11.12 |
申请号 |
US19990362367 |
申请日期 |
1999.07.28 |
申请人 |
NOKIA MOBILE PHONES LIMITED |
发明人 |
KILJANDER HARRI J;DEEDS DOUGLAS A |
分类号 |
G06F3/033;H04M1/247;(IPC1-7):G09G5/08 |
主分类号 |
G06F3/033 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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