Patent ID: 6931210
Filing Date: 2005-08-16
Classification: H04B

Abstract:
1. A bit-rate-independent optical receiver, comprising: a bit rate sensing unit for outputting a photosensitive signal optoelectrically converted from an input optical signal, while outputting a bit rate sensing signal having a voltage level indicative of the bit rate of the photosensitive signal; a variation sensing unit for comparing the bit rate sensing signal outputted prior to a bit rate variation with the bit rate sensing signal outputted after the bit rate variation and to generate a variation sensing signal; a temperature sensing unit for sensing an internal temperature of the bit rate sensing unit and for outputting a temperature sensing signal indicative of the sensed internal temperature; a signal reproducing unit for reproducing the data and clocks of the photosensitive signal based on a predetermined reference clock while, in response to the reception of a clock correction signal, reproducing the data and clocks of the photosensitive signal based on a reference clock corresponding to the clock correction signal; and, a control unit for calculating the bit rate of the photosensitive signal based on the voltage level of the bit rate sensing signal in response to a reception of the variation sensing signal, for compensating the calculated bit rate for errors resulting from a variation in temperature based on the temperature indicated by the temperature sensing signal, and for outputting a clock correction signal indicative of the temperature-compensated bit rate to the signal reproducing unit.