| 摘要 |
PROBLEM TO BE SOLVED: To provide a modulation method of a radio-controlled transmitter that can reliably recognize external noise, and further can narrow transmission bandwidth without making operation response slow. SOLUTION: The voltage of inputs 1 and 2 are fetched into a CPU12 from first and second input sections 13 and 14, half the pulse width in an operation pulse signal corresponding to the voltage of the inputs 1 and 2 is allocated to an operation high-level pulse (VH), and the remaining half of the pulse width is allocated to an operation low-level pulse (VL). Additionally, the remaining pulse width where the pulse width of the operation pulse signal is subtracted from 1 frame is set to be a synchronous pulse signal. The pulse width of the synchronous pulse signal is set to be a remaining pulse width, and the half of the remaining pulse width is modulated to a synchronous high-level pulse (VH). Further, the remaining half of the remaining pulse width is modulated to a synchronous low-level pulse (VL). COPYRIGHT: (C)2003,JPO
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