| 摘要 |
PURPOSE: A device for securing radio input system and a method the same are provided to prevent a drain into other people in transmitting a key value by transmitting the key value with a coding, a timing modulation, or a frequency modulation of an input key. CONSTITUTION: A clock control unit(102) controls a clock according to a frequency generated in an oscillator(101). A clock dividing unit(104) divides the clock controlled in the clock control unit(102) according to a control signal. A control unit(103) outputs the signal for controlling the clock dividing unit(104) according to a key value inputted in a key matrix decoder, and modulates the key value inputted in the key matrix decoder according to the clock divided in the clock dividing unit(104). A micom(105) modulates the frequency according to the signal output through the first transmission sensor from the control unit(103), outputs a mode transition signal through the second transmission sensor, receives the key value inputted from the key matrix decoder through the second receiving sensor and processes the key value to generate a corresponding control signal. |
