Patent ID: 6958702

Claim:
A communication apparatus, comprising: a portable transmitter including: at least one operating switch, a first storing unit containing an ID code registered therein, the ID code including a plurality of ID code sections forming one ID code as a whole, each ID code section being generated corresponding to an operation of said at least one operating switch, a first control unit, an ID registering mode setting mechanism to set the first control unit to an ID registration mode, and a transmitting unit to transmit an electromagnetic signal having the ID code; and a receiver including: a receiving unit to receive the electromagnetic signal having the ID code, a second storing unit containing a reference code stored therein, and a control signal generating unit; said receiver comparing said ID code within the electromagnetic signal with said reference code and supplying control signals from said control signal generating unit to a controlled device when said ID code and said reference code match; and, wherein when said first control unit is set to the ID registration mode by said ID registration mode setting mechanism and said at least one operating switch is operated, the ID code sections are supplied to said first storing unit to be registered as said ID code.