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Electronic device, functional unit and shutdown method thereof

A technology of functional units and electronic devices, applied in the directions of measurement devices, program control devices, data processing power supplies, etc., can solve problems such as accidents or dangers, troubles and frightening users, and achieve the effect of avoiding operation errors.

Active Publication Date: 2018-05-08
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, functional unit and shutdown method thereof
  • Electronic device, functional unit and shutdown method thereof
  • Electronic device, functional unit and shutdown method thereof

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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Abstract

An embodiment of the present invention provides an electronic device. The electronic device includes a switch circuit, a processing unit, a function unit and a power management unit, and the function unit includes a timer. The power management unit is coupled to the processing unit and the functional unit, and the processing unit and the functional unit receive switching signals generated by the switching circuit. After the switch signal changes potential for a first time, the processing unit generates a power-off signal. The timer starts counting when the switch signal changes the potential, and the functional unit executes the closing procedure after the counter counts for a second time. The second time is shorter than the first time, and before the power management unit receives the power off signal and interrupts the power to drive the processing unit and the function unit, the function unit completes the shutdown procedure.

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 Patents(China)
IPC IPC(8): G06F9/4401G06F1/26
Inventor 张政斌庄宗朋邱升南余芝融
Owner REALTEK SEMICON CORP
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