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A system and method for automatically adjusting resolution based on android terminal according to different interfaces

An automatic adjustment and resolution technology, applied in the field of information processing, can solve problems such as blurred display, achieve the effect of improving user experience and display effect

Active Publication Date: 2019-06-21
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It completely avoids the problem that the interface chip processes the high-resolution signal into a low-resolution signal, resulting in blurred display, and truly achieves the purpose of improving the display effect and user experience

Method used

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  • A system and method for automatically adjusting resolution based on android terminal according to different interfaces
  • A system and method for automatically adjusting resolution based on android terminal according to different interfaces
  • A system and method for automatically adjusting resolution based on android terminal according to different interfaces

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A system based on an Android terminal that automatically adjusts resolution according to different interfaces, including a maximum resolution acquisition module, a transmission module, an Android system attribute creation module, a selection module, and a setting module, the maximum resolution acquisition module, the transmission module, Described selection module is connected successively, and described Android system attribute creation module connects described selection module, and described selection module, described setting module, described Android system attribute creation module are connected successively; As figure 1 shown.

[0036] The maximum resolution acquisition module obtains the highest resolution through the driver of the interface chip in the Android terminal system kernel; and the highest resolution obtained is transmitted to the user space by the kernel space through the transmission module, so that the final output resolution is set; the described ...

Embodiment 2

[0038] A method for automatically adjusting resolution based on the system described in Embodiment 1 according to different interfaces, such as figure 2 As shown, the specific steps include:

[0039] (1) Utilize described Android system attribute creation module to add an Android system attribute representing final output resolution, described Android system attribute sets resolution initial value: In Android system, create all with the SystemProperties class under android / os / Describe Android system attribute, and use SystemProperties_set and SystemProperties_get interface to revise and obtain the value of described Android system attribute respectively;

[0040] (2) Obtain the highest resolution that the interface chip can handle through the corresponding chip driver in the Android terminal system kernel;

[0041] (3) Write the highest resolution that can be handled by the interface chip obtained in step (2) into the device file generated by the FrameBuffer driver in the / ...

Embodiment 3

[0050] According to the method for automatically adjusting resolution according to different interfaces described in embodiment 2, the difference is that in the step (2), when the interface chip is VGA, the specific steps include:

[0051] a. The VGA chip driver obtains the RAMDAC frequency of the RAMDAC analog-to-digital converter. The RAMDAC frequency of the RAMDAC analog-to-digital converter is fixed, and the RAMDAC frequency is stored in the BIOS of the VGA graphics card; the RAMDAC frequency refers to the unit time The number of pixels converted from digital signals to analog signals, in MHZ;

[0052] b. Read the frequency value F of RAMDAC. When F≥158MHZ, the highest resolution that the interface chip can handle is 1920×1080P. When 110MHZ≤F≤158MHZ, the highest resolution that the interface chip can handle is obtained. 1600×900P, when 70MHZ≤F≤110MHZ, the highest resolution that the acquisition interface chip can handle is 1280×720P;

[0053] c. Pass the obtained highest ...

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PUM

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Abstract

The present invention relates to an Android terminal-based system and method for automatically regulating resolutions according to different interfaces. The system comprises a largest resolution acquisition module, a transmission module, an Android system attribute creation module, a selection module, and a setting module. Different resolutions are output according to different interfaces connected with the Android terminal, so that when being connected with a VGA interface, an Android system can output a largest resolution that can be processed by a VGA interface chip; when being connected with an HDMI, the Android system can output a largest resolution that can be processed by an HDMI chip. The interface chip is completely prevented from processing a high resolution signal into a low resolution signal, so as not to cause fuzzy display, so that the display effect is truly improved, and the user experience is improved.

Description

[0001] Technical field: [0002] The invention relates to a system and method for automatically adjusting resolutions based on Android terminals according to different interfaces, and belongs to the technical field of information processing. [0003] Background technique: [0004] With the continuous development of the Android operating system, Android technology has been greatly improved and perfected. Now the Android system is not limited to mobile terminals. Various Android boxes have been put on the desktop by people, trying to share a share with the bulky traditional PC host. Thanks to its portability and high cost-effective advantages, Android boxes are rapidly popularized in the market. Since there are mainstream monitors with multiple interfaces on the market (such as VGA, HDMI interface monitors), many Android boxes also have multiple interfaces. . [0005] This brings about a problem. Each interface chip handles different output resolutions. For example, the HDMI int...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/14
CPCG06F3/14
Inventor 袁东风张浪
Owner SHANDONG UNIV
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