| 摘要 |
Disclosed is a remote control module for a computer, which creates an order to control a shut down and a start of a computer system by analyzing a DTMF (dual tone multi frequency) signal received through a telephone line. The remote control module has a telephone line interface section for outputting the DTMF signal received through the telephone line by converting the DTMF signal into a predetermined voltage level, an amplifying section for amplifying and filtering the signal transmitted from the telephone line interface section, an A/D converter, a control section for extracting a computer remote control order from the DTMF signal and for creating a message based on the computer remote control order, a first relay to output a reset signal, a second relay to output a power on/off signal and a serial transmission interface section for receiving the message from the control section and transmitting the message to the computer system by converting the message to match with a serial transmission interface standard.
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