IR receiver using IR transmitting diode

    公开(公告)号:US20040136726A1

    公开(公告)日:2004-07-15

    申请号:US10743933

    申请日:2003-12-23

    CPC classification number: G08C23/04 G08C2201/20

    Abstract: Circuitry using infra-red (IR) diodes in remote control units. In one embodiment an IR LED is used both as a transmitter diode and also as a receiver diode responsive to light to thereby develop photocurrents and/or voltages for use by external circuitry. In a second embodiment an improved amplifier circuit is provided for an IR LED and IR photo detector diode which is mounted behind, and receives light through, the transmitter IR LED.

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