Patent ID: 7043161
Filing Date: 2006-05-09
Classification: H04B

Abstract:
1. An optical communication interface module connected to a direct-current (DC) power terminal, an input/output (I/O) terminal and a ground terminal, to perform optical communication, the module comprising: a transistor for transmission having its base connected to the I/O terminal and its collector connected to the ground terminal; a pull-up device having its one end connected to the DC power terminal, for scaling down the voltage in proportionate to the amount of the current flowing therein; a photo generator device with its anode connected to the opposite end of the pull-up device and its cathode connected to the emitter of the transmission transistor, for generating light to be transmitted, according to the current flowing therein; a photoelectric converter for converting the light received from the photo generator devices of the counter-party's optical communication module into an electrical signal; a first transistor for reception with its collector connected to the anode of the photo generator device and its emitter connected to the ground terminal, the first transistor having its base driven by output signals of the photoelectric converter; and a second transistor for reception with its collector connected to the I/O terminal and its emitter connected to the ground terminal, the second transistor having its base driven by an output signal of the photoelectric converter.