A spread spectrum control method, electronic equipment and storage medium

A control method and spread-spectrum technology, applied in the direction of digital output to display equipment, electrical digital data processing, instruments, etc., can solve problems such as black screen, affecting user experience, and no signal output of audio-visual equipment, and achieve the effect of improving user experience

Active Publication Date: 2021-08-24
SHENZHEN SKYWORTH DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since the above-mentioned spread spectrum function module is set to work in the system running phase by default, and the default state is enabled, so that when the audio-visual equipment is converted from the pre-starting phase to the system running phase, the clock signal changes suddenly, and the clock frequency needs to be reset and switched. As a result, there will be no signal output for a short period of time on the audio-visual equipment, that is, there will be a short-term black screen between the startup screen and the subsequent playback screen, which will affect the user experience

Method used

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  • A spread spectrum control method, electronic equipment and storage medium
  • A spread spectrum control method, electronic equipment and storage medium
  • A spread spectrum control method, electronic equipment and storage medium

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Experimental program
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Embodiment 1

[0024] The spread spectrum control method provided in this embodiment is applicable to the situation where the spread spectrum function is enabled during the system operation phase of the audio-visual equipment in order to improve the anti-electromagnetic interference capability of the audio-visual equipment, and the method can be executed by the spread-spectrum control device. The device can be realized by software and / or hardware, and the device can be integrated in audio-visual equipment, such as a set-top box, DVD player, personal computer or LCD TV. see figure 2 , the method of this implementation specifically includes the following steps:

[0025] S110. Acquire a spread spectrum control button during the pre-startup phase.

[0026] Wherein, the spread spectrum control button refers to the button that controls the opening and closing state of the spread spectrum function, which can be preset, for example, it can be an independent button, or a combination of multiple ind...

Embodiment 2

[0046] This embodiment further optimizes "determining the spread spectrum control flag according to the spread spectrum control key and the mapping relationship between the control key and the control flag" on the basis of the first embodiment above. The explanations of terms that are the same as or corresponding to the above-mentioned embodiments will not be repeated here. see image 3 , the spread spectrum control method provided in this embodiment includes:

[0047] S210. Acquire a spread spectrum control key during the pre-startup phase.

[0048] S220. If the spread spectrum control button is the first preset control button, determine the spread spectrum control flag as the preset spread spectrum control flag according to the mapping relationship between the control button and the control flag.

[0049] Wherein, the first preset control button refers to a preset control button corresponding to the operation of enabling the spread spectrum function. The preset spread spe...

Embodiment 3

[0065] In this embodiment, on the basis of the first embodiment above, an operation of adjusting the spread spectrum amplitude is added. The explanations of terms that are the same as or corresponding to the above-mentioned embodiments will not be repeated here. see Figure 4 , the spread spectrum control method provided in this embodiment includes:

[0066] S310. Acquire a spread spectrum control button during the pre-startup phase.

[0067] S320. Determine the spread spectrum control flag according to the spread spectrum control key and the mapping relationship between the control key and the control flag.

[0068] S330. Control the spread spectrum state according to the spread spectrum control flag.

[0069] S340. Acquire the current screen resolution when the spread spectrum control flag is the preset spread spectrum control flag.

[0070] Among them, the screen resolution refers to the resolution of the screen display, usually measured by horizontal pixels and vertica...

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Abstract

The embodiment of the invention discloses a spread spectrum control method, electronic equipment and a storage medium. The method includes: during the pre-starting stage, acquiring a spread spectrum control key; determining a spread spectrum control sign according to the spread spectrum control key and the mapping relationship between the control key and a control sign; according to the spread spectrum control sign, Control the spread spectrum state. Through the above technical solution, the problem of black screen when the existing audio-visual equipment is converted from the pre-starting stage to the system running stage is solved, and the on-demand opening and closing of the spread spectrum function is realized simply and quickly, and it can adapt to the playing situation of the audio-visual equipment. It can effectively deal with the electromagnetic interference problem of the multimedia interface and improve the user experience.

Description

technical field [0001] Embodiments of the present invention relate to anti-electromagnetic interference technology, and in particular to a spread spectrum control method, electronic equipment, and a storage medium. Background technique [0002] For audio-visual equipment such as set-top boxes, DVD players, personal computers or LCD TVs, the multimedia interfaces include High Definition Multimedia Interface (High Definition Multimedia Interface, HDMI) or Digital Visual Interface (Digital Visual Interface, DVI). Due to the high transmission rate of multimedia signals and relatively concentrated energy, electromagnetic interference is likely to occur inside the audio-visual equipment that receives and processes the multimedia signals, thereby affecting the normal operation of the entire audio-visual equipment. Especially for audio-visual equipment connected to HDMI, since HDMI can transmit audio and video signals at the same time, the maximum data transmission speed is 48Gbps (...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/14
CPCG06F3/1407
Inventor 龙文
Owner SHENZHEN SKYWORTH DIGITAL TECH CO LTD
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