Patent ID: 6330091
Filing Date: 2001-12-11
Classification: G08C

Abstract:
A learning type remote control including circuitry connectable to a supply voltage which circuitry includes:a) an infra-red (IR) diode, said IR diode being sensitive to received light and capable of generating photocurrents/voltages in response to said received light,b) switching means responsive to an associated drive signal, said switching means selectively connecting and disconnecting said IR diode from said supply voltage to provide an output IR signal in response to said associated drive signal;c) first amplifying means connecting said IR diode to provide photocurrents/voltages in response to light directed to said IR diode;d) second amplifying means receiving the output from said first amplifying means to further amplify said photocurrents/voltages; and,e) resistor means connected respectively in series with said first and second amplifying means to selectively control the sensitivity and speed of response of said first and second amplifying means.