SYSTEM AND METHOD FOR COMMUNICATING WITH AN APPLIANCE THROUGH A LIGHT EMITTING DIODE
    2.
    发明公开
    SYSTEM AND METHOD FOR COMMUNICATING WITH AN APPLIANCE THROUGH A LIGHT EMITTING DIODE 有权
    通过LED与设备进行通信的系统和方法

    公开(公告)号:EP1468511A2

    公开(公告)日:2004-10-20

    申请号:EP03703986.4

    申请日:2003-01-23

    IPC分类号: H04B10/10

    摘要: An apparatus includes a controller for controlling operation of an appliance, an indicator light coupled to the controller to provide a visible indication of an operator selection in response to the controller energizing the indicator light, and a driver coupled to the controller and the indicator light so that the controller may communicate data through the indicator light by controlling the driver. The indicator light may be a light emitting diode or a segment of an alphanumeric display of an appliance control panel. A detector LED may also be coupled to the controller so the controller may receive data from an external device that communicates by flashing light on the detector LED. A terminal for communicating with the appliance may include a detector LED and a conductor that couples the detector LED to a diagnostic tool. The detector LED may receive data from an optical transmitter of the appliance control panel. The terminal may also include a LED that is coupled to the diagnostic tool by a conductor so the LED may be selectively energized by the diagnostic tool to communicate with an optical receiver of the appliance control panel. The detector LED and LED coupled to the diagnostic tool may be located within a housing having apertures for the transmission of visible light to and from the detector LED and LED. The housing may be mounted to the appliance control panel and aligned for communication by means of a magnet or engagement with supports on the appliance control panel.

    APPLIANCE CONTROL METHODS AND APPARATUS
    6.
    发明公开
    APPLIANCE CONTROL METHODS AND APPARATUS 审中-公开
    方法和装置控制设备

    公开(公告)号:EP1467646A1

    公开(公告)日:2004-10-20

    申请号:EP03707406.9

    申请日:2003-01-15

    IPC分类号: A47L15/42 D06F39/00 H01H25/06

    摘要: An appliance includes a rotating position switch (32) and a selector switch (34). The rotating position (3A-3F) switch has a first position (4A-4D) associated with a first appliance function and a second position associated with a second appliance function. The second appliance function modifies the first appliance function. The selector switch (34) has an actuated state configured to generate a signal representative of a selection of the first appliance function when the rotating position switch (32) is in the first position. The actuated state is further configured to generate a signal representative of a selection of the second appliance function when the rotating position switch (32) is in the second position.

    HEATING UNIT AND CONTROL SYSTEM FOR COOKTOPS HAVING CAPABILITY TO DETECT PRESENCE OF A PAN AND METHODS OF OPERATING SAME
    7.
    发明公开
    HEATING UNIT AND CONTROL SYSTEM FOR COOKTOPS HAVING CAPABILITY TO DETECT PRESENCE OF A PAN AND METHODS OF OPERATING SAME 审中-公开
    加热装置和POT捕获STEURUNGSSYSTEM滚刀存在可能及其操作方法

    公开(公告)号:EP1419674A2

    公开(公告)日:2004-05-19

    申请号:EP02750326.7

    申请日:2002-07-26

    IPC分类号: H05B3/74

    CPC分类号: H05B3/746 H05B2213/05

    摘要: The present invention provides a control system for a heating unit in a cooktop that is capable of detecting the presence (or absence) of a cooking pan or utensil. The heating unit has a spirally wound ribbon heater element and may be mounted below a glass-ceramic cooking surface. The control system includes a pan detection unit electrically connected to the heater element. The pan detection unit generates a high frequency signal through the heater element to determine whether a pan is present on the cooktop. The pan detection unit may have an oscillation circuit to generate the high frequency signal through the heater element. In one embodiment, the control system further includes at least one switch device that is connected between element and the power source. The switch device is opened to remove the heater element from the power source when the pan detection unit generates the high frequency signal through the heater element. The present invention also includes a heating unit having dual heater units to determine the size of the pan placed on the cooktop. The present invention further includes methods of operating a heater unit and control system having the capability of detecting the presence of a pan.