发明名称 REMOTE CONTROL CIRCUIT
摘要 <p>PURPOSE:To obtain with excellent operation convenience and with high reliability by providing a required remote control operation section to a headphone code intermediate section and providing a voltage level deciding circuit to a main body section. CONSTITUTION:When a remote control switch SW1 of a remote control section 1 connecting to an intermediate section between a headphone 4 and a main body section 2 is turned on, a transistor(TR) Q1 of the main body section 2 is turned on, a TR Q2 is turned on and an LEDD1 connected in parallel with the switch SW1 is lighted to confirm the supply of a power supply 3 to the main body section 2. Moreover, a voltage level deciding circuit 6 of the main body section 2 inputs a remote control input signal by the switching of the switch SW1 is inputted to a remote control input processing circuit 7 independently of lighting/nonlighting of the LEDD1 and the operating state of the main body section 2 is recognized by the operation section 1 without increasing the number of wires from the main body section 2 to the operation section 1 and a remote control circuit for an audio equipment using the headphone with operation convenience and high reliability is obtained.</p>
申请公布号 JPH02248195(A) 申请公布日期 1990.10.03
申请号 JP19890069727 申请日期 1989.03.22
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 TANAKA KIICHI;KASHIMA KOTARO
分类号 H04R3/00;G11B15/10 主分类号 H04R3/00
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