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Updating devices and electronics

A technology of voltage and power saving mode, which is applied in the field of update devices and electronic equipment, and can solve the problems of complicated update processing

Inactive Publication Date: 2018-01-12
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in this technique, in order to rewrite the data in the target block to another block, it is necessary to associate the logical block with the physical block, etc.
Therefore, there is a problem that the update process becomes complicated

Method used

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  • Updating devices and electronics
  • Updating devices and electronics
  • Updating devices and electronics

Examples

Experimental program
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Embodiment Construction

[0013] The object of simplification of the flash memory update process is achieved by the following update means. The updating means reads out data from a plurality of blocks of the flash memory at a time. When updating in block units, the update device erases the data stored in the block to be updated. The updating device writes data corresponding to the erased data among the read data to the target block.

[0014] In this update device, it is preferable to have the following functions. The update device checks whether or not a power failure has occurred that prevents the block-by-block update before starting block-by-block update. When the power supply is turned off, it is preferable that the update device completes the block-by-block update.

[0015] The plurality of data stored in the plurality of blocks can be, for example, a plurality of data pieces constituting individual data. As independent data, there are startup programs such as a boot loader and the like. The ...

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PUM

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Abstract

A refresh apparatus includes a flash memory and a refreshing unit. The flash memory includes a plurality of blocks, the plurality of blocks storing data. The refreshing unit sequentially refreshes the plurality of blocks in units of blocks. The refreshing unit includes a reading unit, a data deleting unit, and a data writing unit. The reading unit performs batch reading of data from the plurality of blocks. The data deleting unit deletes data stored in a target block for the refresh during the refresh in units of blocks. The data writing unit writes data corresponding to the deleted data among the plurality of read data to the target block so as to complete the refresh in units of blocks.

Description

technical field [0001] The present invention relates to an update device and electronic equipment that simplify update processing of a flash memory. Background technique [0002] In a NAND flash memory or the like, when reading data is repeated a predetermined number of times, an error in which data cannot be read correctly, that is, a so-called read disturbance, occurs. [0003] Therefore, for a flash memory, for example, a technique of updating at a predetermined timing is known. [0004] In this technique, an arbitrary number of target blocks among a plurality of blocks constituting the flash memory are updated (rewritten). Specifically, data is read out to the cache for each object block. And, the read data is rewritten to another block. [0005] With this technique, an arbitrary number of target blocks can be sequentially updated in block units. [0006] However, in this technique, in order to rewrite the data in the target block to another block, it is necessary to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06G06F1/32
CPCG11C16/3418G11C16/16G11C16/26G11C16/30
Inventor 新田健一朗
Owner KYOCERA DOCUMENT SOLUTIONS INC