【正文】
of the distance to remote controller ? The Band Pass Filter is tuned to the modulation frequency ? Waveform detector is to detect the presence of the modulation frequency. If this modulation frequency is present the output will be low. ? Waveform rectifier The Receiver ? Tburst時間愈長,其抗干擾能力愈好, NEC CODE: Tburst=560us、 Tgap=560us、 Tpause= ~ TV紅外接收距離 ? 角度 ψ=30176。時: 10m ? 角度 ψ=45176。時: 7m ? 角度 ψ=60176。時: 3m ? 角度 ψ定義如圖 ψ