Patent ID: 7313178

Claim:
A transceiver for receiving and transmitting data over a network, comprising: a transmitter for receiving a network data signal representative of a signal capable of being transmitted over a network and a control signal for impairing characteristics of the network data signal, and for continuously generating an output signal corresponding to the data signal and the control signal during a predetermined time window; a receiver for continuously receiving the output signal from the transmitter, and for reconstructing the network data signal within the predetermined time window; and a built-in-self-test (BIST) device for generating the network data signal and the control signal, and for providing a reference clock signal with a varied offset for jitter testing the transceiver, wherein the BIST device detects erroneous performance by the transceiver based on the reconstructed network data signal; wherein the BIST device includes a jitter control system comprising: a multiplexor for outputting the reference clock signal; at least one delay timer for delaying an input clock signal; a shift register for controlling the multiplexor; and a controller for controlling the multiplexor and updating the shift register.