Patent application number | Description | Published |
20080320210 | Data management systems, methods and computer program products using a phase-change random access memory for selective data maintenance - A data management system includes a data processor configured to provide a file system module configured to store first data in a flash memory in block units and a filter layer module configured to receive second data from the file system module and to store the second data in a phase-change random access memory (PRAM) in sub-block units. The filter layer module may be configured to identify difference data in the second data received from the file system module by comparing the received second data and third data stored in the PRAM, and to write the identified difference data to the PRAM. The second data may include file metadata and the first data may include data other than file metadata. The sub-block units may be byte units. | 12-25-2008 |
20090059662 | MULTI-LEVEL CELL MEMORY DEVICES AND METHODS USING SEQUENTIAL WRITING OF PAGES TO CELLS SHARING BIT BUFFERS - An apparatus includes a nonvolatile memory including a plurality of memory cells, each configured to store data having at least two bits and a control circuit configured to write data to a first memory cell connected to a wordline of the nonvolatile memory and to then write data to a second memory cell that is connected to wordline and shares a bit buffer with the first memory cell. | 03-05-2009 |
20090094405 | Method and apparatus for writing data to and reading data from phase-change random access memory - A method and apparatus for writing data to and reading data from a phase-change random access memory (PRAM) include encoding original data using a predetermined encoding function, selecting data, from among the original data and the encoded data, which require less power when being written to the PRAM, writing the selected data to the PRAM, generating marking information related to the selected data, and writing the marking information to the PRAM. Therefore, power consumption can be reduced when data are written to the PRAM. | 04-09-2009 |
20090248962 | Memory system and wear leveling method thereof - A memory system includes a variable resistance memory configured to input and output data by a first unit and a translation layer for managing the degree of wear of the variable resistance memory by a second unit, different from the first unit. | 10-01-2009 |
20100037005 | COMPUTING SYSTEM INCLUDING PHASE-CHANGE MEMORY - A computing system, more particularly, a computing system including a phase-change memory is provided. The computing system includes a flash memory configured to store data and a phase-change memory configured to store address mapping information for converting a logical address into a physical address. The phase-change memory is configured to store the address mapping information while the computing system is in a power-off state. The computing system may store an address mapping table to manage the flash memory in the phase-change memory. | 02-11-2010 |
20100180070 | METHOD OF HANDLING I/O REQUEST AND SOLID STATE DRIVE USING THE SAME - A solid state drive (SSD) including a storage that includes a plurality of flash memories configured to be independently drivable and a controller to receive an input/output (I/O) request from a host, to split the I/O request into a plurality of sub-requests each having a size configured to be capable of being processed independently by each flash memory, and to process the I/O request based on the sub-requests. | 07-15-2010 |
20100191898 | COMPLEX MEMORY DEVICE AND I/O PROCESSING METHOD USING THE SAME - A non-volatile mass storage memory and an input/output processing method using the memory are provided. The memory device includes a storage unit including a non-volatile random access memory and a flash memory and a controller to control the storage to process an input/output request. Accordingly, system memories having different purposes and functionalities, such as a flash memory and a dynamic random access memory (DRAM), may be integrated with each other. | 07-29-2010 |
20110271039 | APPARATUS AND METHOD FOR FLASH MEMORY ADDRESS TRANSLATION - Provided is a flash memory address translation method that may maintain at least one chip that may be divided based on at least one horizontal bank and at least one vertical channel, and may divide the at least one bank by at least one stripe partition, managing an error of a chip without deterioration in a performance of a small writing. | 11-03-2011 |
20110276750 | APPARATUS AND METHOD FOR PROCESSING DATA OF FLASH MEMORY - An memory device including a data region storing a main data, a first index region storing a count data, and a second index region storing an inverted count data, where the data region, the first index region, and the second index region are included in one logical address. | 11-10-2011 |
20120102277 | DATA STORAGE DEVICE AND WRITE METHOD THEREOF - A write method of a data storage device including a storage media includes compressing data to be stored in the storage media; determining compressed data start positions of a physical unit of the storage media in which the compressed data is to be stored; and storing the compressed data from the determined compressed data start positions of the physical unit, respectively. | 04-26-2012 |
20120131266 | MEMORY CONTROLLER, DATA STORAGE SYSTEM INCLUDING THE SAME, METHOD OF PROCESSING DATA - A data storage system includes a controller configured to receive data and data information about the data from a host, analyze the data information, detect whether the data has been compressed, and compress the data according to a detection result; and a nonvolatile memory device configured to store the data compressed by the controller and information about whether the data has been compressed. The controller includes a buffer configured to temporarily store the data and the data information received from the host, an analyzer configured to output, based on an analysis result, a compression control flag that indicates whether the data has been compressed, and a compressor configured to selectively compress or bypass the data based on the compression control flag, and to transmit the data to the nonvolatile memory device. | 05-24-2012 |
20130006981 | STORAGE DEVICE AND DATA PROCESSING DEVICE UTILIZING DETERMINED DICTIONARY COMPRESSION - A data processing device for a storage device can include a dictionary storage unit that is configured to store a plurality of dictionaries and a compression unit that is configured to determine a selected dictionary from the plurality of dictionaries based on received data, and compress the received data using the selected dictionary to provide compressed data. Each of the plurality of dictionaries can include a plurality of pattern-symbol correspondence relations defining a one-to-one correspondence between respective ones of a plurality of patterns and respective ones of a plurality of symbols. | 01-03-2013 |
20130007340 | METHOD OF HANDLING I/O REQUEST AND SOLID STATE DRIVE USING THE SAME - A solid state drive (SSD) including a storage that includes a plurality of flash memories configured to be independently drivable and a controller to receive an input/output (I/O) request from a host, to split the I/O request into a plurality of sub-requests each having a size configured to be capable of being processed independently by each flash memory, and to process the I/O request based on the sub-requests. | 01-03-2013 |
20130031300 | NON-VOLATILE MEMORY DEVICE, METHOD OF OPERATING THE SAME, AND MEMORY SYSTEM HAVING THE NON-VOLATILE MEMORY DEVICE - According to an aspect of the inventive concepts, there is provided a non-volatile memory device including a memory array with at least one stripe. The at least one stripe includes at least one parity page and at least one data page. The non-volatile memory device further includes a chip controller. The chip controller includes an operation module configured to perform an operation on data input from the outside of the memory device, to store a result of the performing, and to program the result of the performing into the at least one parity page. The chip controller further includes a data buffer configured to store the input data and to program the input data into the at least one data page. | 01-31-2013 |
Patent application number | Description | Published |
20100085016 | METHOD AND APPARATUS FOR BATTERY GAUGING IN PORTABLE TERMINAL - A method and apparatus for battery gauging in a portable terminal are provided. In the battery gauging method, it is determined in a low-power mode whether a listening interval occurs for detecting the presence of a received signal. The remaining battery capacity is detected if the listening interval occurs. An interrupt signal is transmitted to the second processor, operating in a low-power mode, if the remaining battery capacity is less than or equal to a threshold. Upon receipt of the interrupt signal, the second processor wakes up to interrupt the power of the portable terminal. | 04-08-2010 |
20130119997 | METHOD AND APPARATUS FOR BATTERY GAUGING IN A PORTABLE TERMINAL USING AMOLED DISPLAY - Provided is a battery gauging method for a portable terminal including an active matrix organic light emitting diode (AMOLED) display. The battery gauging method may measure a voltage value of a battery, may determine, for each pixel, RGB information associated with image data buffered in a frame buffer, may determine, for each pixel, a preliminary compensation value corresponding to determined RGB information so as to calculate a compensation value by adding preliminary compensation values of all pixels, and then determine a residual quantity of the battery based on the measured voltage value and the compensation value. | 05-16-2013 |
20130141415 | Apparatus and method for adjusting a battery voltage level output in a portable terminal - A method and apparatus for performing compensation to adjust a battery voltage level output in a portable terminal without incorporating a dedicated battery gauge integrated circuit may include: calculating a color rate of an image when the image is output on an active matrix organic light-emitting diode (AMOLED), determining a current battery voltage value, performing compensation to adjust a battery voltage value based on the color rate of the image and the current battery voltage value, and displaying a battery residual quantity icon indicating a residual quantity of a battery based on the adjusted battery voltage value. | 06-06-2013 |
Patent application number | Description | Published |
20090323313 | CONDENSING SHEET AND METHOD FOR PREPARING THEREOF - Disclosed is a condensing sheet, a method of manufacturing the condensing sheet, a backlight assembly including the condensing sheet, and a liquid crystal display including the backlight assembly. The condensing sheet includes a light output unit that has a plurality of lenses, and a light input unit that faces the light output unit and includes a light penetration unit and a light reflection unit. The light reflect ion unit has a structure including a recess sinking toward the light output unit and a reflector received in the recess. | 12-31-2009 |
20130121022 | OPTICAL SHEET HAVING IMPROVED DURABILITY, AND BACKLIGHT UNIT COMPRISING SAME - A durability-enhanced optical sheet and an edge-type backlight unit having the optical sheet. The edge-type backlight unit includes a light source unit that includes a plurality of light sources, a light guide unit that is disposed adjacently to the light source unit and controls a path of light generated from the light source unit, a diffusion sheet disposed on the light guide plate, and an optical sheet that is disposed on the diffusion sheet and includes a lens unit and a non-lens unit, wherein the non-lens unit includes a first base unit, a second base unit, and a bonding layer for bonding the first and second base units. The optical sheet includes two base unit layers, and thus, sheet waves that can be caused due to heat can be prevented, modulus can be increased, and durability of the optical sheet can be enhanced. | 05-16-2013 |