Patent application number | Description | Published |
20110199822 | METHOD AND APPARATUS FOR CONTROLLING PAGE BUFFER OF NON-VOLATILE MEMORY DEVICE - A method of managing a page buffer of a non-volatile memory device comprises programming least significant bit (LSB) page data from an LSB page buffer into a page of memory cells, and retaining the LSB page data in the LSB page buffer until most significant bit (MSB) page data corresponding to the LSB page data is programmed in the page. | 08-18-2011 |
20120008394 | NONVOLATILE MEMORY SYSTEM AND REFRESH METHOD - A memory system including non-volatile memory devices and a corresponding refresh method are disclosed. The method groups memory blocks of the non-volatile memory devices into memory groups, determines a refresh sequence for the memory groups, and refreshes the memory groups in accordance with the refresh sequence. | 01-12-2012 |
20120066438 | NON-VOLATILE MEMORY DEVICE, OPERATION METHOD THEREOF, AND DEVICE HAVING THE SAME - A memory device includes a control module to determine first data blocks needing a garbage collection, to determine second data blocks needing memory refresh among the determined first data blocks, and to execute the garbage collection first on the second data blocks. | 03-15-2012 |
20120311238 | MEMORY APPARATUS - A memory apparatus is provided. The memory apparatus includes a first memory chip, a second memory chip and a control unit configured to manage a first mapping table for the first memory chip and a second mapping table for the second memory chip. If a first physical address of the second memory chip is allocated to a first logical address of the first memory chip, the control unit is configured to update a second logical address of the second memory chip to correspond to the first physical address of the second memory chip in the second mapping table and update the first logical address of the first memory chip to correspond to the second logical address of the second memory chip in the first mapping table. | 12-06-2012 |
20130046918 | METHOD WRITING META DATA WITH REDUCED FREQUENCY - A method of writing meta data in a semiconductor storage device in relation to a maximum number of written meta data pages N. The method stores write data in a buffer and loads meta data in a meta memory, writes the write data to the storage medium and updates the meta data. The updated meta data is stored upon determining a number of written meta data pages in an updated meta data region, and only exceeding the maximum number of written meta data pages N, a meta data write operation is performed. | 02-21-2013 |
20130054928 | META DATA GROUP CONFIGURATION METHOD HAVING IMPROVED RANDOM WRITE PERFORMANCE AND SEMICONDUCTOR STORAGE DEVICE USING THE METHOD - A semiconductor storage device having an improved write performance is disclosed. The semiconductor storage device includes a plurality of memory devices, with each memory device associated with a logical address space comprising contiguous logical addresses. A controller of the semiconductor storage device is configured to allocate a plurality of meta data groups for each memory device, with each meta data group assigned a set of logical addresses of the logical address space. The controller may also configured to assign a first logical address of a logical address space to a first meta data group and a second logical address of the logical address space, contiguous to the first logical address, to a second meta data group, where the second meta data group is different than the first meta data group. | 02-28-2013 |
20130185485 | Non-Volatile Memory Devices Using A Mapping Manager - Provided are storage devices that may include a non-volatile memory. The storage devices may also include a controller configured to perform a read operation on a physical page of the non-volatile memory in response to a read request on a logical page of the non-volatile memory from a host. The controller may include a mapping manager configured to manage a plurality of logical blocks by a logical unit. The mapping manager may include a unit map table including a correlation between the logical unit and a physical unit corresponding to the logical unit. Additionally, the mapping manager may be configured to change a mapping method according to whether the unit map table includes a physical unit corresponding to a logical unit including a logical page requested by the host. Related user devices and electronic devices are also provided. | 07-18-2013 |
20140160858 | NONVOLATILE MEMORY SYSTEM AND REFRESH METHOD - A memory system including non-volatile memory devices and a corresponding refresh method are disclosed. The method groups memory blocks of the non-volatile memory devices into memory groups, determines a refresh sequence for the memory groups, and refreshes the memory groups in accordance with the refresh sequence. | 06-12-2014 |