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Electronic device, function unit and turn-off method of electronic device

A technology of functional units and electronic devices, which is applied to measurement devices, program control devices, data processing power supplies, etc., can solve problems such as accidents or dangers, frighten users, and trouble users, and achieve the effect of avoiding operation errors.

Active Publication Date: 2015-07-22
REALTEK SEMICON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] As can be seen from the above, when the control signal of the processing unit 12 to control the audio codec unit 13 is suddenly interrupted, the speaker 16 and the earphone 17 coupled to the audio codec unit 13 may produce pop noise (Pop noise), and It may cause confusion to the user in use, and even the above-mentioned popping noise may frighten the user, leading to accidents or dangers

Method used

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  • Electronic device, function unit and turn-off method of electronic device
  • Electronic device, function unit and turn-off method of electronic device
  • Electronic device, function unit and turn-off method of electronic device

Examples

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Embodiment Construction

[0040] Various exemplary embodiments will be described more fully hereinafter with reference to the accompanying drawings, in which some exemplary embodiments are shown. However, inventive concepts may be embodied in many different forms and should not be construed as limited to the illustrative embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the inventive concept to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Like numbers indicate like elements throughout.

[0041] It will be understood that, although the terms first, second, third etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used to distinguish one element from another. Thus, a first element discussed below could be termed a second element without...

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PUM

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Abstract

The embodiment of the invention provides an electronic device. The electronic device comprises a switch circuit, a processing unit, a function unit and a power supply management unit. The function unit comprises a timer. The power supply management unit is coupled on the processing unit and the function unit. The processing unit and the function unit receive a switch signal produced by the switch circuit. When the switch signal changes the level for the first time, the processing unit produces a power supply turn-off signal. The timer starts to count when the switch signal changes the level, and a turn-off program is executed through the function unit when the timer counts for the second time. The second time is smaller than the first time. The power supply management unit receives the power supply turn-off signal, and before a power supply for driving the processing unit and the function unit is turned off, the function unit completes the turn-off program.

Description

technical field [0001] The present invention relates to an electronic device, in particular to a functional unit, an electronic device and a shutdown method thereof that avoid abnormal functions during forced shutdown. Background technique [0002] In recent years, with the development of technology and electronic devices, the penetration rate of various handheld devices or mobile devices has grown significantly. For devices such as smart phones (Smart Phone), portable players (MP3Player) and personal digital assistants (Personal Digital Assistant, PDA), the industry is also actively developing various additional functions, such as common music The playback function is one of the above-mentioned common additional functions, which makes the above-mentioned handheld device an indispensable carry-on item in people's life. [0003] However, when operators add more functions to the handheld device, the overall complexity of the handheld device and the load on the processing unit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/445G06F1/26
Inventor 张政斌庄宗朋邱升南余芝融
Owner REALTEK SEMICON CORP
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