发明公开
- 专利标题: Electronic controller switch
- 专利标题(中): Elektronischer Steuerungsschalter。
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申请号: EP89121918.0申请日: 1989-11-28
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公开(公告)号: EP0371451A2公开(公告)日: 1990-06-06
- 发明人: Ratliff, James E. , Nicholson, Walter P.
- 申请人: SECURE-TIME, INC.
- 申请人地址: 2020 Avon Circle Hayden Lake Idaho 83835 US
- 专利权人: SECURE-TIME, INC.
- 当前专利权人: SECURE-TIME, INC.
- 当前专利权人地址: 2020 Avon Circle Hayden Lake Idaho 83835 US
- 代理机构: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät
- 优先权: US276694 19881128
- 主分类号: G07F7/00
- IPC分类号: G07F7/00 ; G07C9/00
摘要:
An electronic controller switch (90) is disclosed for authorizing use of controlled devices. The electronic controller switch includes memory (112) for storing a plurality of data strings unique to the particular controlled device with which the electronic controller switch is used. Each data string includes an access code, a validation data bit, and a user time data value. A user provides an input code to the controller via a standard infrared transmitter (134) and an infrared receiver (130) coupled to the controller. In response to the input code provided by the user, a microprocessor (106) searches the memory to determine whether any of the data strings includes a corresponding access code. If a corresponding access code is found and the validation data bit of its data string is not set, then the user has provided a valid input code and will be authorized to use the controlled device (102). If the validation data bit is set, which indicates that the input code provided by the user has been previously used, the user will not be authorized. When the microprocessor determines that a user is authorized, the microprocessor will provide the use time data value of the data string to a timer (116), thereby to control the time period for which the user is authorized. Different data strings are provided with time data values corresponding to different duration time periods.
公开/授权文献
- EP0371451A3 Electronic controller switch 公开/授权日:1991-04-03
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