Signal synchronization system

Abstract

A signal synchronization system comprises a plurality of synchronization units and a control unit. Each of the synchronization units corresponds to an output device respectively, allowing the control unit to correctively receive the output data from the output device. The control unit generates the system clock and the data selection signal according to the number of the output devices and the clock. The frequency of the system clock has to be high enough to allow the control unit to be able to receive all output data from the output devices. The data selection signal determines the order of data from the output devices received by the control unit. The control unit generates the output selection signal and arranges the output data from the output devices into the same signal to provide for a plurality of the receiving devices to receive. The output selection signal is used to label which receiving device should receive the data output by the control unit.

Description

technical field [0001] The present invention relates to a signal synchronization system, in particular to how multiple receiving devices correctly receive data output by multiple output devices. Background technique [0002] Signal synchronization has always been an important topic in electronic systems. For example, the transmission of multimedia information in the network system or the transmission of image information in the system requires signal synchronization technology so that the receiving device can correctly receive the data of the output device. [0003] The currently commonly used synchronization technology is: using a crystal oscillator to provide a reference frequency, and cooperating with a phase-locked loop (PLL) and a frequency divider to generate different working clocks for use by different devices in the system. However, the clock generated by the phase-locked loop usually has a noise problem, so that the working clocks of the various devices in the sys...

AI Technical Summary

Problems solved by technology

[0005] However, the traditional signal synchronization system 102 needs to set a set of chip pins for each receiving device. With the increase of output devices and receiving devices, the number of pins (pins) of the traditional signal synchronization system 102 will become a burden, not only the circuit board The circuit layout (circuit layout) will be quite complicated, and the cost of the package (package) of the chip (chip) and the cost of the circuit board (PCB) will also increase

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