摘要:
A method of storing data in a storage medium of a data storage device comprises storing input data in the storage medium, and reading the input data from the storage medium and compressing the read data during a background operation of the data storage device.
摘要:
Provided is a program method of a multi-bit memory device with memory cells arranged in rows and columns. The program method includes a programming each memory cell of the first group of memory cells to a state within a first group of states according to a verify voltage level of a first group of verify voltage levels within a first range of levels, and programming each memory cell of the second group of memory cells to a state within a second group of states according to a verify voltage level of a second group of verify voltage levels within a second range of levels. The lowest verify voltage level in the second range of levels is higher than the highest verify voltage level in the first range of levels. A first voltage difference between adjacent verify voltage levels within the first range of levels is different from a second voltage difference between the highest verify voltage level of the second group of verify voltage levels and the lowest verify voltage level of the third group of verify voltage levels.
摘要:
A data compression method includes receiving an input data stream including a previous data block and a current data block, and executing a first comparison of a part of the previous data block with part of a previous reference data block, and a second comparison of the current data block with a current reference data block, where the first and second comparisons are executed in parallel. The method further includes selectively, based on results of the first and second comparisons, outputting the current data block or compressing an extended data block, where the extended data block includes the part of the previous data block and the current data block.
摘要:
According to example embodiments, a method of controlling a memory controller includes executing an error correction code (ECC) on first page data that has been read from a non-volatile memory device using a first read voltage level, estimating a second read voltage level for reading the first page data using metadata of second page data when an uncorrectable error is detected in the first page data according to a result of executing the ECC.
摘要:
A nonvolatile memory device comprises a memory cell array configured to store one or more bits per memory cell, a read and write circuit configured to access the memory cell array, a control logic component configured to control the read and write circuit to sequentially execute read operations of a selected memory cell at least twice to output a read data symbol, and an error correcting unit configured to correct an error in the read data symbol based on a pattern of the read data symbol to output an error-corrected symbol.
摘要:
A memory system comprises a non-volatile memory device that stores user data and state information regarding the user data. In a read operation of the non-volatile memory device, a memory controller calculates a priori probabilities for the user data based on the state information, calculates a posteriori probabilities based on the a priori probabilities, and performs a soft-decision operation to determine values of the user data based on the a posteriori probabilities.
摘要:
A method is provided for operating a data storage device capable of compensating for an initial threshold voltage shift of multiple memory cells. The method includes generating a first compression value for a first write address corresponding to a first write request input during a first time interval among different time intervals, and storing the first compression value in a first table among multiple tables.
摘要:
A memory system including a non-volatile memory device and a memory controller is provided. When a read operation on a first data initially output from the non-volatile memory device during a first read operation is successful, the memory controller may change a read voltage for reading a second data stored in the non-volatile memory device during a second read operation.
摘要:
A memory system comprises a non-volatile memory device that stores user data and state information regarding the user data. In a read operation of the non-volatile memory device, a memory controller calculates a priori probabilities for the user data based on the state information, calculates a posteriori probabilities based on the a priori probabilities, and performs a soft-decision operation to determine values of the user data based on the a posteriori probabilities.
摘要:
Provided is a program method of a multi-bit memory device with memory cells arranged in rows and columns. The program method includes a programming each memory cell of the first group of memory cells to a state within a first group of states according to a verify voltage level of a first group of verify voltage levels within a first range of levels, and programming each memory cell of the second group of memory cells to a state within a second group of states according to a verify voltage level of a second group of verify voltage levels within a second range of levels. The lowest verify voltage level in the second range of levels is higher than the highest verify voltage level in the first range of levels. A first voltage difference between adjacent verify voltage levels within the first range of levels is different from a second voltage difference between the highest verify voltage level of the second group of verify voltage levels and the lowest verify voltage level of the third group of verify voltage levels.