| 摘要 |
A universal remote control unit for controlling the operation of a plurality of devices such as a cable box, a television, a video device, and an audio device, includes a processor having a plurality of operating modes, a first mode push button for initiating a mode change, and a plurality of second mode push buttons corresponding respectively to a plurality of devices for enabling a user to select one of the plurality of operating modes. The processor is operable in a selected one of the plurality of operating modes, upon activation of one of the second mode push buttons within a predetermined amount of time of activation of the first mode push buttons. The universal remote control unit is effective to reduce the likelihood of unintentionally changing the operating mode. In addition, the universal remote control unit may also be effective to readily allow a user to readily determine the current operating mode of the universal remote control unit by pressing the first mode push button, and selectively turn on/of the devices using the second mode push buttons.
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