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Abstract

A system for self-correcting the multiphase clock includes a transmitter, a receiver, a random code generator and a controller. The random code generator generates a random code stream, the random code stream is transformed to the high-speed serial data by the transmitter, the high-speed serial data are sent into the receiver and transformed to the parallel data by the receiver, the parallel data are sent into the controller, the controller stores the random code stream and detects the probability of the bit error of the parallel data output by the receiver. According to the test result of the bit error, the controller generates a phase adjustment control signal for adjusting the phase uniformity of the multiphase clock. Also, a method for self-correcting the phase uniformity of the multiphase clock of the present invention effectively makes up the sampling bit errors caused by the phase nonuniformity of the multiphase clock.

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First Claim