| 摘要 |
PURPOSE: A keypad capable of checking voice in real-time is provided to reduce an input error occurring in a calculator or a device inputting a number by outputting a value completed for inputting the number through the voice or a screen. CONSTITUTION: A key input part(10) receives the user's input, and connects to a number processing and operating part(20) by comprising a numeric key(11), a unit key(12), and an operation and function key(13). The number processing and operating part comprises a number processor(21) and an operator(22), receives a key input signal from the key input part by connecting to the key input part and an output part(30), converts the inputted signal into an internal processing unit such as a binary, stores it in a temporary buffer(34), outputs it to the screen through a number outputting device(33), and outputs the voice through a voice synthesizer(31).
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