Multimedia file playing method and system for mobile storage device

A technology for mobile storage devices and multimedia files, which is applied in memory systems, special data processing applications, audio data browsing/visualization, etc. The effect of improving playback fluency and decryption efficiency

Pending Publication Date: 2019-12-13
YEESTOR MICROELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Among them, storage devices are not only used to store document table data, but also widely used to store multimedia files. Multimedia files include audio files and video files. Multimedia files are widely used in education and training systems, audio-visual media communication, advertising and other fields. Therefore, When a multimedia file is stored in the storage device, the copyright of the multimedia file should be used by the copyright owner. The existing storage device cannot effectively prevent others from using the storage device to copy the multimedia file, resulting in low data security of the multimedia file in the storage device. , so there is some improvement

Method used

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  • Multimedia file playing method and system for mobile storage device
  • Multimedia file playing method and system for mobile storage device

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0056] For the above content, such as Figure 4 As shown, the application proposes a multimedia file playback method for a removable storage device, comprising the following steps:

[0057] Step S100, pre-partitioning the storage device to form a display partition and a hidden partition, where specific playback software is stored in the display partition, and multimedia file data is stored in the hidden partition.

[0058] According to the technical solution defined in step S100, specifically, refer to figure 2 As shown, when the storage device leaves the factory, by configuring an embedded program in the control unit of the storage device, the storage device can be partitioned through the embedded program, so that the storage device forms a display partition and a hidden partition. In this embodiment, There is no specific limit to the number of display partitions and hidden partitions, which are actually set according to actual application conditions, but at least one displ...

Embodiment 2

[0116] The present invention also proposes a multimedia file playing system for a removable storage device. The system is applied to a storage device and a host computer. The storage device includes a control unit, a flash memory chip and a cache unit, and the control unit is electrically connected to the flash memory chip and the cache memory unit respectively. The cache unit and the control unit are used to realize data interaction with the host. The control unit receives commands sent by the host. The control unit is responsible for parsing host commands, allocating cache units, implementing logical address and physical address mapping, and coordinating garbage collection and host business.

[0117] refer to Figure 6 As shown, the system includes a partition module, a reporting module and specific playback software.

[0118] The partition module is used to partition the storage device in advance to form a display partition and a hidden partition, wherein, the display parti...

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PUM

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Abstract

The invention discloses a multimedia file playing method and system for a mobile storage device, and the technical scheme is characterized in that the method comprises the following steps: the storagedevice is partitioned in advance to form a display partition and a hidden partition, specific playing software being stored in the display partition, and multimedia file data being stored in the hidden partition; when the storage device is powered on, only the display partition is reported to be recognized by the host operating system; and a private command is issued to the storage device throughthe specific playing software to determine that the hidden partition exists in the storage device, the multimedia file data is analyzed in the hidden partition and playing action is executed. According to the invention, the purpose of improving the data security in the storage device is achieved.

Description

technical field [0001] The invention relates to the technical field of playing multimedia files, in particular to a method and system for playing multimedia files used in removable storage devices. Background technique [0002] NAND Flash (flash memory) is currently the most mainstream non-volatile storage medium. It is widely used in mobile U disks and solid state drives (Solid State Drivers, SSDs) due to its advantages of high performance, low power consumption, shock resistance, and long life. ), mobile memory cards and other common storage products. [0003] A storage device such as a solid-state hard disk is a hard disk composed of a control unit and a solid-state storage unit (NAND Flash). Solid-state drives use NAND Flash chips to store data. Before data is written, the NAND Flash chip needs to be erased. The basic unit of the erase operation is a block (Block). Each Block contains several pages (Page). Page is the data read The basic unit of write operations. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/02G06F12/0866G06F21/79G06F16/74G06F16/64
CPCG06F12/0246G06F12/0866G06F21/79G06F16/74G06F16/64
Inventor 林寅吴大畏李晓强
Owner YEESTOR MICROELECTRONICS CO LTD
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