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Electronic device with memory data backup function

A technology of data backup and electronic equipment, which is applied in the direction of data processing power supply, input/output process of data processing, redundancy in calculation, data error detection, etc. Respond to potential problems and other issues to prevent loss or tampering

Inactive Publication Date: 2015-11-25
LSIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, figure 2 The structure shown has the limitation that only the supply of power is considered, and the variation of power quality is not considered
Therefore, this structure has limitations in that it cannot respond to a problem that occurs when the supplied power is higher than the reference voltage for circuit operation, nor can it supply power to the external power supply unit 33 and the internal power supply unit 34 of the main power supply unit. Respond to potential problems that occur in abnormal conditions

Method used

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  • Electronic device with memory data backup function
  • Electronic device with memory data backup function
  • Electronic device with memory data backup function

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Embodiment Construction

[0028] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art can manufacture or use the embodiments. The thickness of lines and the size of components shown in the drawings may be exaggerated herein for clarity and convenience of description. In addition, terms to be mentioned hereinafter are defined in consideration of functions in the present disclosure, and may be different according to users or operators or actual practices. Therefore, the terms should be defined based on the entire content of the present disclosure.

[0029] Figure 4 is a block diagram of an electronic device having a memory data backup function according to a first exemplary embodiment of the present disclosure.

[0030] refer to Figure 4 , The electronic device 100 according to the first exemplary implementation of the present disclosure may include a controller 100 , a main memory 120 , ...

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Abstract

An electronic device with data backup function is disclosed. The electronic may include: a main memory; a controller; a main power supply unit configured to supply a main electric power to the controller and the main memory; an auxiliary power supply unit configured to supply an auxiliary electric power to the controller and the main memory; and a power supply monitoring unit configured, by monitoring a state of the main electric power, to transmit either a normality detection signal or an abnormality detection signal to the controller, and to apply either the main electric power or the auxiliary electric power to the controller and the main memory, according to the state of the main electric power, wherein the controller backs up the data stored in the main memory and an operation state of the controller itself to an auxiliary memory, when receiving the abnormality detection signal.

Description

technical field [0001] The present disclosure relates to an electronic device with a memory data backup function. More particularly, the present disclosure relates to an electronic device having a memory data backup function configured to back up data saved in a main memory to an auxiliary memory by using an auxiliary power source when power supply of the main power source is insufficient. Background technique [0002] Most of the recently used electronic / electrical equipment are installed with microprocessor control units (MCU, MicroprocessorControlUnits). Each MCU includes a memory that stores data to be processed by the MCU and processing results of the MCU. [0003] However, data in volatile memory to be accessed by the MCU is often lost or tampered with due to unexpected power supply anomalies. [0004] figure 1 It is a block diagram of conventional electronic equipment without backup means. Such as figure 1 As shown, in conventional electronic equipment, the MCU 1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14
CPCG06F1/30G06F1/28G06F12/16G06F3/0619G01R21/00G06F1/263G06F3/0647G06F3/0653G06F3/0673
Inventor 吴俊锡金基明
Owner LSIS CO LTD