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

A mobile terminal and high-order harmonic technology, applied in the field of mobile application processors, can solve problems such as unqualified MIPI signal quality and poor high-order filtering effect

Inactive Publication Date: 2016-08-17
LEMOBILE INFORMATION TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 MIPI signal, resulting in unqualified quality of the MIPI signal ; The smaller the attenuation of the high-frequency filter circuit, the smaller the impact on the waveform of the MIPI signal, but at the same time the filtering effect on the high-order filter is also worse

Method used

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

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Embodiment Construction

[0024] The present invention is described below based on examples, but the present invention is not limited to these examples. In the following detailed description of the invention, some specific details are set forth in detail. The present invention can be fully understood by those skilled in the art without the description of these detailed parts. In order to avoid obscuring the essence of the present invention, well-known methods, procedures, and flow charts are not described in detail. Additionally, the drawings are not necessarily drawn to scale.

[0025] figure 1 It is a structural schematic diagram of a mobile terminal using a MIPI interface in the prior art. exist figure 1 In , the baseband chip 100, the display driver chip 101, and the camera chip 102 of the mobile terminal are respectively shown. When the mobile terminal is started, the baseband chip 100 reads the configuration of each chip from the static storage area, and respectively starts the display drive...

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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 ...

Claims

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Application Information

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IPC IPC(8): H04B15/00
CPCH04B15/00G06F3/147G09G2320/0242G09G2340/14G09G2370/16G06F13/4282G09G5/003H04M1/0202H04M2201/38H04M2250/52
Inventor 刘禠阳刘东海
Owner LEMOBILE INFORMATION TECH BEIJING
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