KEYLESS TRANSMITTER

PURPOSE:To reduce the overall size of the device by generating two different password code signals by using one code generating circuit. CONSTITUTION:This transmitter is provided with a switch circuit 4 which outputs an H-level signal and an L-level signal respectively with two switches 3 selectively ON and connects respective parts to a power source 2 and also provided with a logic circuit 7 which connects the output side of a code generating circuit 5, which outputs a specific binarized password code signal to one input and the output side of the switch circuit 4 to the other input. The password code signal inputted to this logic circuit 7 is passed through or inverted and outputted with the switches 3 selectively ON, and the outputted password code signal is sent as an electromagnetic wave by a transmission output circuit 6. Consequently, the password code signal generated by the one code generating circuit 5 can be sent out as two kinds of password code signal.