发明申请
- 专利标题: Spy-resistant keyboard
- 专利标题(中): 间谍键盘
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申请号: US10870510申请日: 2004-06-17
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公开(公告)号: US20050251451A1公开(公告)日: 2005-11-10
- 发明人: Desney Tan , Pedram Keyani , Mary Czerwinski
- 申请人: Desney Tan , Pedram Keyani , Mary Czerwinski
- 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: G06F3/00
- IPC分类号: G06F3/00 ; G06F3/048 ; G06F21/00 ; G07F7/10 ; G09G5/00 ; G06F17/60
摘要:
A method, system and article of manufacture for providing a spy-resistant keyboard. The spy-resistant keyboard provides a user with additional protection against unauthorized observers while the user is interfacing with a system implementing the spy-resistant keyboard. The keyboard may include a number of tiles with a number of user-selectable characters randomly associated with each tile. A spy-resistant keyboard may also include a number of movable tiles with user-selectable characters. Before a user selects a user-selectable associated with one of the tiles, all the user-selectable characters in the tiles are at least blanked to avoid unauthorized viewing of a chosen tile.
公开/授权文献
- US07395506B2 Spy-resistant keyboard 公开/授权日:2008-07-01