Patent ID: 7146108

Claim:
A receiving apparatus for receiving channel data transmitted from an external transmitting apparatus through an optical fiber and recovering the channel data from a received optical signal, comprising: a plurality of optical diodes for reception for receiving optical signals received from an external source and converting the optical signals into current signals; an error detection optical receiver for converting the current signals converted by the plurality of optical diodes for reception into voltage signals, digitizing the voltage signals, outputting the digitized voltage signals as recovered serial channel data and a recovered clock signal, detecting transmission loss of each channel from the voltage signals, encoding the transmission loss, converting the encoded transmission loss into current, and outputting the current; a PLL for generating a synchronized clock signal synchronized with the recovered clock signal and outputting the synchronized clock signal as an actual clock signal for receiving data; a data recovery unit for recovering the recovered serial channel data to n-bit parallel data in response to the synchronized clock signal; and an optical diode for transmission for converting the signal encoded and inverted into current by the error compensating optical receiver into an optical signal.