Method and device for resisting high order harmonic interferences of display screen MIPI (Mobile Industry Processor Interface) bus, and mobile terminal

Abstract

The embodiment of the invention provides a method for resisting high order harmonic interferences of a display screen MIPI (Mobile Industry Processor Interface) bus. Corresponding relationship between radio frequency communication bands capable of being used by a mobile terminal and safe frequencies of the display screen MIPI bus is pre-stored in the mobile terminal, wherein high order harmonics produced when the display screen MIPI bus works in the safe frequencies will not fall in the corresponding radio frequency communication band range. The method comprises following steps of detecting the radio frequency communication band currently used by the mobile terminal; searching the safe frequency of the display screen MIPI bus corresponding to the radio frequency communication band currently used by the mobile terminal according to the corresponding relationship; and setting the current working frequency of the display screen MIPI bus as the searched safe frequency of the display screen MIPI bus. The interferences of the high order harmonics of the display screen MIPI bus are avoided from the source by setting the working frequency of the display screen MIPI bus as the searched safe frequency.

Description

technical field [0001] The invention relates to the field of mobile application processors, in particular to a method, device and mobile terminal for resisting high-order harmonic interference. Background technique [0002] The development of mobile terminal technology has made high-resolution screens and high-pixel cameras necessary. [0003] The improvement of the pixels of the display screen will generate a larger amount of data, which in turn requires the MIPI (Mobile Industry Processor Interface, Mobile Industry Processor Interface) bus used to transmit data to work at a higher and higher frequency, which will inevitably cause Generate high-order harmonics, some of which will fall within the radio frequency communication frequency range, and thus be received by the antenna of the mobile terminal itself, which will eventually reduce the receiving sensitivity of the antenna, and even affect the normal operation of the mobile terminal in severe cases. call. [0004] The ...

AI Technical Summary

Problems solved by technology

However, the inventors of the present invention found in the research that the greater the attenuation of the high-frequency filter circuit, the better the filtering effect of the high-order filter, but at the same time it also has a greater impact on the waveform of the

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