Infrared remote control receiver (IRCR) having semiconductor signal processing device therein

A semiconductor remote control receiver comprising a photo diode converting an optical signal to an electrical signal, a semiconductor signal processing device for receiving the electrical signal from the photo diode, eliminating noise components from the electrical signal and generating a pulse signal corresponding to a remote control signal transmitted from a remote control signal transmission system, and a microcomputer for receiving and decoding the pulse signal from the signal processing device and performing a remote control operation, wherein the semiconductor signal processing device comprises an envelope signal detecting circuit comprising an amplifier for amplifying an input signal, a first envelope signal abstracting unit for generating a first envelope signal by receiving an output of the amplifier, and a second envelope signal abstracting unit for generating a second envelope signal by receiving the first envelope signal.