Patent ID: 8433206

Claim:
A receiver for receiving a burst-mode optical signal, the receiver comprising: a transimpedance amplifier (TIA) for receiving a single current information signal, converting the single current information signal into a single voltage signal, and outputting the single voltage signal; a differential signal converter for converting the single voltage signal received from the TIA into differential signals, and outputting the differential signals; an automatic offset control limiting amplifier (AOC-LA) for automatically controlling and amplifying an offset of the differential signals; a gain controller for detecting an intensity of a burst packet of the single voltage signal output by the TIA and generating a gain value control signal to control a gain value of the TIA; a burst detector for receiving the differential signals output by the differential signal converter, detecting burst packets, and generating a burst detection signal for a start timing of each of the burst packets; and a controller for receiving an externally inputted MAC reset signal, the gain value control signal, and the burst detection signal, and generating control signals for controlling the TIA, the gain controller, the burst detector, and the AOC-LA, wherein the controller comprises: a reset signal generator for receiving the MAC reset signal and generating a reset signal operating in conjunction with a rising edge of the MAC reset signal for controlling the controller; a gain control window signal generator for generating a gain control window signal having a first time width based on the burst detection signal output by the burst detector; a gain control signal generator for receiving the gain value control signal generated by the gain controller and a gain control window time generated by the gain control window signal generator, generating a gain control signal during the first time width, and outputting the generated gain control signal to the TIA; an automatic offset cancellation (AOC) signal generator for receiving the gain control window time generated by the gain control window signal generator, generating an AOC reset signal having a time width that is a second time width longer than the first time width, and outputting the AOC reset signal to the AOC-LA; and a squelch signal generator for receiving the reset signal and the gain control window signal, generating a squelch signal having a time width in which the first time width, the second time width, and a third time width are added, and outputting the squelch signal to the AOC-LA.