Optical transceiver and data mapping method using thereof

摘要

Disclosed is an optical transceiver. The optical transceiver includes a decoder for decoding an 8B10B line-coded signal; a data mapper for separating the decoded signal into block units and securing extra memory capacity by mapping a data code and a block information code onto each of the separated blocks; and an FEC encoding unit for creating a Forward Error Correction (FEC) data and mapping the FEC data onto the extra memory capacity.

主权项

1. An optical transceiver comprising:
a decoder for decoding an 8B10B line-coded signal; a data mapper dividing a decoded signal from the decoder into block units by combining eight 8-bit signals and securing fifteen bits of extra memory capacity as a result of mapping sixty four bits of data code and one bit of block information code into each of the divided block units, a Forward Error Correction (FEC) unit encoding unit for creating an FEC data and mapping the FEC data into the extra memory capacity, wherein the decoder decodes the 8B10B line-coded signal into an original 8-bit value if an input signal is a code word or decodes the 8B10B line-coded signal into a 4-bit Control Code Indicator (CCI), 3-bit position information and an extra one bit if the input signal is a control word, wherein the extra one bit of the control code is a Last Control Character (LCC) which includes information on whether or not a subsequent symbol is a control code, and the 3-bit position information indicates an original position of the control code among a sequence of eight symbols contained in the block, and wherein the data mapper individually specifies eight 8-bit signals as one block and identifies control codes using the block information code and sequentially maps the control codes beginning from the starting point of the block.