Patent attributes
A signal generator device for generating at least one periodic signal for use in a data eye scan system. The signal generator comprises a clock input, at least one output and at least one signal generator coupled with the clock input and with the output. The signal generator is at least one token ring with a predetermined number of positions and is operable to propagate at least one token in the ring by moving the token from its current position to a following position dependent on a clock signal from the clock input. The signal generator further comprises a predetermined number of signal value units that each represent a respective predetermined signal value of a predetermined signal waveform and are operable to provide the signal value at an output of the signal generator dependent on a current position of the at least one token in the token ring.