Patent ID: 8645781

Claim:
A transitional minimized differential signaling (TMDS) receiver system comprising: a clock channel adapted to receive, process and output a clock signal; a plurality of data channels adapted to receive, process and output corresponding data signals according to the clock signal; a TMDS decoding unit adapted to receive and decode the processed data signals; and a self-test unit, coupled between the clock channel and each of the data channels, wherein the self-test unit is adapted to receive the clock signal and an external parallel signal, and accordingly, generate a test signal to perform a built-in-self-test (BIST) on the data channels and the TMDS decoding unit, wherein the self-test unit comprises: a frequency synthesizer adapted to receive the clock signal, and accordingly generate a multiple frequency signal, wherein the frequency of the multiple frequency signal is more than one time of the frequency of the clock signal; and a logic operation unit adapted to receive and perform a logic operation on the multiple frequency signal and the external parallel signal to generate the test signal, wherein each of the data channels comprises a selector for selecting the test signal or the corresponding data signal to perform the BIST.