Patent ID: 9036685
Filing Date: 2015-05-19
Classification: G06F,H03L,H04L

Abstract:
1. A connecting interface unit not comprising a crystal oscillator, comprising: a phase detector configured to receive an input signal from a host system, and to detect a phase difference between the input signal and a first reference signal to generate a first phase signal; a filter coupled to the phase detector and configured to filter the first phase signal to generate a second phase signal; a signal detecting circuit configured to receive the input signal, and to detect a signal character difference between the input signal and the first reference signal to generate a first difference signal; a signal generating circuit coupled to the signal detecting circuit and configured to generate at least one second reference signal according to the first difference signal; a first phase interpolator coupled to the filter and the signal generating circuit and configured to generate a first clock signal according to the second phase signal and the at least one second reference signal; a first sampling circuit coupled to the first phase interpolator and configured to generate an input data signal according to the first clock signal; and a transmitter circuit, not receiving a reference clock from a crystal oscillator, configured to modulate an output data signal according to the first clock signal or one of the at least one second reference signal to generate an output signal, and to transmit the output signal to the host system.