- HALF-DUPLEX COMMUNICATION CIRCUIT OF UNIVERSAL ASYNCHRONOUS RECEIVER TRANSMITTER FOR SERIAL INFRARED INTERFACE

摘要

The invention serial infrared communications when half using universal asynchronous receiver-transmitter-relates to a duplicating Rex communication control circuit, a conventional universal asynchronous receiver-transmitter (UART) is a pull-in operation in a duplex (Full-duplex) manner, wherein in the infrared transducer module accept incorrect data when the light comes in the LED (LED) and a photodiode are attached adjacent to the receiving end in the data transmission and reception, there is a problem in which an error can occur in the SIR (Serial Infrared) communication. Thus, the present invention is the data transmitted to the data asynchronously with the universal asynchronous receiver-transmitter exported to serial, and the encoding / decoding module for transmitting to the incoming data sent from the coding according to the SIR standards protocol and decoding the data to be transferred, in the a change in the infrared output, and converts an infrared ray input to an electrical signal according to the SIR communication circuit consisting of an infrared de lance transducer module for transmission to the encoding / decoding module, wherein the universal asynchronous receiver-transmitter will prevent the receiver at the time of data transmission, Conversely when received, makes a transmitter normal half-including duplex control means, the half-half to be communicated to the duplex mode and to communicate in a duplex manner, the reliability and stopped the received incorrect data to be fed back to the photodiode attached to an infrared signal serial enemies It is one to allow for communications.