Title:
ENCODING DEVICE, MEMORY CONTROLLER, COMMUNICATION SYSTEM, AND ENCODING METHOD
Document Type and Number:
WIPO Patent Application WO/2017/018008
Kind Code:
A1
Abstract:
The present invention improves data retention characteristics of memory cells of a memory system wherein data are encoded then written into the memory cells. A first candidate parity generation part generates, as a first candidate parity, a parity used for detecting an error of an information portion wherein a predetermined value is set in a predetermined variable region. A second candidate parity generation part generates, as a second candidate parity, a parity used for detecting an error of the information portion wherein a different value from the predetermined value is set in the predetermined variable region. A selection part selects, as a selected parity, a parity that satisfies a predetermined condition from between the first and second candidate parities. An output part outputs a codeword comprising the information portion corresponding to the selected parity and the selected parity.
Inventors:
SHINBASHI TATSUO (JP)
NAKANISHI KENICHI (JP)
FUJINAMI YASUSHI (JP)
IWAKI HIROYUKI (JP)
ISHII KEN (JP)
OKUBO HIDEAKI (JP)
NAKANISHI KENICHI (JP)
FUJINAMI YASUSHI (JP)
IWAKI HIROYUKI (JP)
ISHII KEN (JP)
OKUBO HIDEAKI (JP)
Application Number:
PCT/JP2016/062159
Publication Date:
February 02, 2017
Filing Date:
April 15, 2016
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G06F11/10; G06F12/16; G11C16/02; G11C16/06; H03M13/05
Foreign References:
| JP2004164634A | 2004-06-10 | |||
| JP2011508358A | 2011-03-10 | |||
| JP2013542533A | 2013-11-21 | |||
| US20130019142A1 | 2013-01-17 | |||
| JPH08335396A | 1996-12-17 | |||
| JP2011526398A | 2011-10-06 |
Attorney, Agent or Firm:
MARUSHIMA, Toshikazu (JP)
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