Error correction device and electronic device including the same
a technology of error correction and electronic device, applied in the field of error correction device, can solve the problems of limiting transmission capability or calculation capability between internal calculation nodes, reducing error correction performance, and expanding bit-precision
Active Publication Date: 2020-02-27
SK HYNIX INC
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AI Technical Summary
Benefits of technology
This approach improves the accuracy of reliability information reflection, thereby enhancing error correction performance without significantly increasing hardware complexity or power consumption.
Problems solved by technology
The error correction device may be operated under limitation of predetermined bit-precision, which may limit transmission capability or calculation capability between internal calculation nodes.
The limitation of the bit-precision may preclude accurate reliability information from being reflected to a decoding operation, and consequently reduce the error correction performance.
However, expansion of the bit-precision may be accompanied with hardware complexity and an increase in power consumption.
Method used
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[0040]Advantages and features of the present disclosure, and implementation methods thereof will be described through following embodiments described with reference to the accompanying drawings. The present disclosure may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. The present embodiments are only provided to describe the present disclosure in detail, such that the technical idea of the present disclosure can be easily carried out by those skilled in the art to which the present disclosure pertains.
[0041]In the drawings, the exemplary embodiments of the present disclosure are not limited to the illustrated specific forms, but may be exaggerated for the purpose of clarity. Specific terms have been used in the present specification. However, the terms are used in order to describe the present disclosure and are not used in order to limit the meaning or the scope of the present disclosure, which is disclosed in th...
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An error correction device includes: a plurality of variable node units each configured to: receive a hard decision bit and a channel reliability value having a first bit-precision; and perform an iteration of a decoding operation on the hard decision bit based on the channel reliability value; a plurality of check node units each configured to: receive one or more reference reliability values having a second bit-precision from one or more variable node units coupled thereto among the plurality of variable node units during the iteration; and transmit, based on the one or more reference reliability values, one or more check reliability values having the second bit-precision to the one or more variable node units coupled thereto, wherein, during the iteration, each of the plurality of variable node units further: receives one or more first check reliability values from one or more check node units coupled thereto among the plurality of check node units; and updates the hard decision bit with reference to the channel reliability value and the one or more first check reliability values by upsizing the first bit-precision of the channel reliability value and the second bit-precision of the one or more first check reliability values.
Description
CROSS-REFERENCES TO RELATED APPLICATION[0001]The present application claims priority under 35 U.S.C. § 119(a) to Korean application number 10-2018-0097884, filed on Aug. 22, 2018, in the Korean Intellectual Property Office, which is incorporated herein by reference in its entirety.BACKGROUND1. Technical Field[0002]Various embodiments generally relate to an error correction device, and more particularly, to an error correction device which is operated with predetermined bit-precision.2. Related Art[0003]An error correction device may be applied to various electronic systems, such as a communication system and a data storage system, for processing data, and used to correct an error generated in the data.[0004]The error correction device may receive data to be error-corrected and reliability data indicating the reliability of the data, and correct an error of the data based on the reliability data.[0005]The error correction device may be operated under limitation of predetermined bit-p...
Claims
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IPC IPC(8): H03M13/00H03M13/11H03M13/37
CPCH03M13/1171H03M13/612H03M13/611H03M13/3723G06F11/10H03M13/1117H03M13/6577G06F11/1012G06F11/1048
Inventor KIM, DAE SUNGJO, MYUNG JINKANG, SOON YOUNGSUNG, WAN JE
Owner SK HYNIX INC