Abstract: A programmable remote control transmitter receives, in a learning mode, remote control codes for remote-controlling various devices and remote-controls the devices according to the received remote control codes by emulating their respective transmitters. The transmitter includes a first repetition pattern discriminator for compressing the remote control codes into first compressed data representing the pulse burst component and the pulse off component a second repetition pattern discriminator for converting pairs of the first compressed data into second compressed data, and a memory for storing the second compressed data. The transmitter also includes circuitry for use in a remote control mode of operation for reconverting the stored compressed data back into codes suitable for transmission to a particular device to be controlled.

Abstract: A transmitter driver of this invention is applied to a programmable remote control transmitter for receiving remote control codes for remote-controlling various electric devices in the learning mode and for remote-controlling the electric devices according to the received remote control codes in the remote control mode. The transmitter driver has an output transistor for driving a transmitter constituting a part of a load upon reception of electrical pulses representing the remote control codes, a resistor device arranged between the output side of the output transistor and a given reference potential, and a control transistor device, output electrodes of which are arranged between one end of the resistor device at the side of the output transistor and the reference potential. An input terminal of the control transistor device receives a control signal corresponding to an output signal format of remote control codes necessary for controlling an electric device selected by a user.