Patent ID: 6781539
Filing Date: 2004-08-24
Classification: G08C

Abstract:
A remote control transmitter comprising:an operation key, a microcomputer including an internal memory for storing remote control transmission data, said microcomputer issuing the remote control transmission data as an electric signal by a manipulation of said operation key, infrared ray output means for issuing an infrared ray signal according to the electric signal issued by said microcomputer, an illuminating device for illuminating said operation key, a driving circuit for applying a specified voltage to said illuminating device for lighting up said illuminating device, a light switch for turning on and off said driving circuit, and a voltage control circuit including: a diode having substantially the same power consumption as said infrared ray output means, said diode being coupled to said driving circuit, and a switching element coupled parallel to said diode, said switching element being turned on and off according to the electric signal issued by said microcomputer.