发明名称 |
Trellis coded modulation method for reducing inter-cell interference of flash memory device, trellis coded modulation circuit, error correct circuit and flash memory device using same |
摘要 |
PURPOSE: A trellis coded modulation method, a trellis coded modulation circuit, an error correcting circuit, a method for inputting data of a flash memory device and the flash memory device are provided to minimize interference between cells by decreasing an error rate due to an E-PH pattern. CONSTITUTION: A convolutional encoder(11) receives the first input data of k bits among input data of n bits. The k is smaller than the n. The convolutional encoder outputs the encoded input data of k+r bits by adding the surplus data of r bits to the first input data of k bits. An m dimensional modulator(12) rearranges m modulation data on an m dimensional trellis point by receiving the encoded input data of k+r bits and the second input data of the n-k bits except the first input data. The m dimensional modulator stores the m modulation data in m memory cells of a flash memory device by corresponding to the rearranged trellis point. |
申请公布号 |
KR101250672(B1) |
申请公布日期 |
2013.04.09 |
申请号 |
KR20100122415 |
申请日期 |
2010.12.03 |
申请人 |
|
发明人 |
|
分类号 |
G11C16/10;G11C16/20;G11C16/34 |
主分类号 |
G11C16/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|