Power down prevention method and device for memory card

A memory card and anti-power-off technology, which is applied in the field of memory cards, can solve the problems of increasing terminal production cost, high terminal power consumption, and high power consumption, and achieve the effect of reducing terminal power consumption and avoiding frequent writing

Active Publication Date: 2013-06-26
NATIONZ TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] First, re-customize the power management scheme of the terminal to ensure that the terminal supplies power to the memory card continuously at any time. This method leads to high power consumption of the terminal and greatly shortens the battery life of the terminal. In addition, it may increase the production cost of th

Method used

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  • Power down prevention method and device for memory card
  • Power down prevention method and device for memory card

Examples

Experimental program
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Embodiment Construction

[0017] Hereinafter, this embodiment will be described in detail by taking a mobile phone terminal and a built-in SD card as an example, in conjunction with the accompanying drawings.

[0018] figure 1 It is a flowchart of a method for preventing power failure of a memory card according to an embodiment of the present invention, please refer to figure 1 :

[0019] S11. The mobile phone creates a file in the SD card.

[0020] S12. The mobile phone writes command data to the file in the SD card at regular intervals.

[0021] The command protocol between the mobile phone and the SD card, the command protocol can be a private command protocol between the mobile phone and the SD card, the mobile phone can install application software, and write command data to the file in the SD card through the application software based on the command protocol ; Files can be created in the memory module of the SD card.

[0022] S13. After the SD card receives the command data, the control modu...

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PUM

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Abstract

The invention discloses a power down prevention method and device for a memory card. The method comprises the steps of enabling a terminal to continuously or intermittently send data to the memory card; enabling the memory card to feed back response data for the data sent by the terminal; enabling the terminal to judge whether the memory card is in a working state according to the response data; and enabling the terminal to continuously supply power to the memory card in the working state. The device comprises the terminal and the memory card arranged in the terminal. The terminal comprises a first data transceiving unit, a judging unit and a power supply unit, wherein the first data transceiving unit is used for sending the data to the memory card and receiving the response data fed back through the memory card; the judging unit is used for judging whether the memory card is in the working state according to the response data; and the power supply unit is used for continuously supplying power to the memory card in the working state. The memory card comprises a memory module and a second data transceiving unit for receiving the data sent by the terminal and feeding the response data back to the terminal. According to the technical scheme, the power down prevention method and device for the memory card are improved.

Description

technical field [0001] The invention relates to the field of memory cards, in particular to a method and device for preventing power failure of a memory card. Background technique [0002] Terminals such as mobile phones, PADs, digital cameras, and audio players are more and more widely used. The storage space of the terminal itself is limited. In order to expand the storage space, memory cards such as SD, CF, and TF are usually installed in the terminal. Taking mobile phones as an example, When the phone is in standby mode, in order to save power, it usually runs necessary programs in a low-power mode and closes other unnecessary programs, such as the built-in memory card. At this time, the built-in memory card is in a power-off state, and the payment function of the memory card cannot be used. Normal application, causing inconvenience to the user's payment application. Currently, there are two ways to solve the memory card power-off problem: [0003] First, re-customize ...

Claims

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Application Information

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IPC IPC(8): G06K19/073
Inventor 刘凤赵云海王建
Owner NATIONZ TECH INC
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