Abstract: Provided is a transmitting device for enlarging the size of a data eye of a transmission signal. The transmitting device includes an output driver including a plurality of driver circuits that drive a plurality of multi-level signals onto an output node, and a logic circuit configured to detect a direction of a pull-up or pull-down operation of each of the plurality of driver circuits by transitions of the plurality of driver control signals and generate pulse signals. The plurality of multi-level signals are driven based on a plurality of driver control signals and pulse signals, respectively, and the logic circuit provides a pulse signal to at least one static driver circuit connected to a driver control signal that does not transition, from among the plurality of driver circuits.

Abstract: Disclosed are various exemplary embodiments of a clock recovery apparatus for recovering clock signals of multiple data channels. In one exemplary embodiment a clock recovery apparatus for a plurality of data channels may include a plurality of channel blocks, where each channel block may include a frequency detection block configured to generate an intermediate signal based on a respective data signal received from a respective data channel and a global signal, and a recovery block configured to recover a clock signal for the respective data channel in response to the respective data signal and the global signal. The apparatus may also include a global signal generation block configured to receive and combine the intermediate signals from the plurality of channel blocks to generate the global signal.

Abstract: Disclosed are various exemplary embodiments of a clock recovery apparatus for recovering clock signals of multiple data channels. In one exemplary embodiment a clock recovery apparatus for a plurality of data channels may include a plurality of channel blocks, where each channel block may include a frequency detection block configured to generate an intermediate signal based on a respective data signal received from a respective data channel and a global signal, and a recovery block configured to recover a clock signal for the respective data channel in response to the respective data signal and the global signal. The apparatus may also include a global signal generation block configured to receive and combine the intermediate signals from the plurality of channel blocks to generate the global signal.