发明名称 |
Kodierungsverfahren und Speicheranordnung |
摘要 |
This invention relates to a memory apparatus or the like adaptable to a multi-value recording flash memory and others. A flash memory 10 is designed for 16-value (4-bit) recording. For a write operation, the encoder (12) converts input data Din into an abbreviated Reed-Solomon code to provide write data WD. The converter (13) converts the write data WD into four-bit parallel data. The converted data are fed and written to the each memory cell constituting cell arrays (11) successively. For a read operation, the converter (14) converts read data RD from the cell arrays (11) into one-byte (8-bit) parallel data and supplies the converted data to the decoder (15) for error correction in units of bytes, whereby output data Dout is obtained. Since the Reed-Solomon code is used, sufficient performance with a limited number of errors to be corrected can be obtained. <IMAGE> |
申请公布号 |
DE69932962(D1) |
申请公布日期 |
2006.10.05 |
申请号 |
DE1999632962 |
申请日期 |
1999.01.21 |
申请人 |
SONY CORP. |
发明人 |
MIYAUCHI, TOSHIYUKI;HATTORI, MASAYUKI |
分类号 |
G11C29/00;G06F11/10;G11C7/10;G11C11/56;G11C29/42;H03M13/15 |
主分类号 |
G11C29/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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