Patent application number | Description | Published |
20110107016 | SOLID STATE STORAGE SYSTEMS AND METHODS FOR FLEXIBLY CONTROLLING WEAR LEVELING - Solid-state storage systems and methods are provided for controlling a wear leveling process for uniform use of the memory cells that replaces worn memory blocks with less frequently used memory blocks. The wear leveling process is performed by changing the physical locations of the storage cells within each memory zone or plane. Reference values of target memory block erase counts and worn memory block erase counts are used for searching target memory blocks to be used as replacements. | 05-05-2011 |
20130346676 | OPERATING METHOD OF DATA STORAGE DEVICE - Provided is an operating method of a data storage device including a plurality of nonvolatile memory devices. The operating method includes the steps of: dividing storage areas of the nonvolatile memory devices into a first memory area and a second memory area; determining wear levels of each of the first memory area and the second memory area; and varying a ratio of the first memory area and the second memory area according to the determined wear levels. | 12-26-2013 |
20140173231 | SEMICONDUCTOR MEMORY DEVICE AND SYSTEM OPERATING METHOD - Disclosed is a semiconductor memory device for controlling a memory block. The semiconductor memory device includes a plurality of memory blocks to store data, and controller. The memory controller requests a first memory block, of the plurality of memory blocks, to performing a copy operation to copy the first memory block to a second memory block of the plurality of memory blocks. The controller then requests the first memory block to perform an operation different than the copy operation. The controller then requests the memory block to stop the copy operation based on the to perform an operation different than the copy operation. Finally, the controller requests the memory block to resume the copy operation after the operation different than the copy operation is completed. | 06-19-2014 |
20140208044 | SEMICONDUCTOR DEVICE AND METHOD OF OPERATING THE SAME - A method of operating a semiconductor device may comprise storing data in memory cells coupled to first word lines of memory blocks including the first word lines and second word lines located respectively between the first word lines, detecting a memory block, where data stored in the memory cells of the first word lines is invalidated, from the memory blocks, and storing data in memory cells coupled to the second word lines of the detected memory block. | 07-24-2014 |
20140359204 | NON-VOLATILE MEMORY DEVICE AND METHOD FOR OPERATING THE SAME, AND SYSTEM INCLUDING THE SAME - Disclosed are a non-volatile memory device capable of performing memory operations in parallel and a method for operating the non-volatile memory device, and a system including the non-volatile memory device. A non-volatile memory system may include a memory controller suitable for controlling a memory; and the memory suitable for performing read and program operations in response to commands from the memory controller, and wherein the memory controller and the memory operate in a high interface mode, and operate in a low interface mode when an operation to read internal data or an operation to receive (N+1)th data is performed during an operation to program Nth data in the memory. | 12-04-2014 |
20150074476 | DATA STORING SYSTEM AND OPERATING METHOD THEREOF - A data storing system performs a test operation on a memory block on which a read operation is determined to be failed, and determines whether the memory block is or is not a bad block based on a result of the test operation. The data storing system may improve reliability and yield of a device. | 03-12-2015 |
20150121026 | SEMICONDUCTOR SYSTEM AND OPERATING METHOD THEREOF - A semiconductor system includes a semiconductor memory device suitable for storing data, and a host suitable for controlling the semiconductor memory device in response to an external command signal, in which the semiconductor memory device includes a buffer block suitable for storing first data programmed under control of the host, and a main block suitable for storing the second data programmed under control of the host or a copy of the first data stored in the buffer block at a sudden power fail. | 04-30-2015 |
20160098201 | DATA STORAGE DEVICE AND OPERATING METHOD THEREOF - A data storage device includes a controller configured to update an access request count and an access count corresponding to a target region based on an access request for the target region, and initialize the access count each time the access request count reaches a first threshold, and a nonvolatile memory apparatus including the target region, and configured to access the target region based on a control of the controller. | 04-07-2016 |
20160098214 | DATA STORAGE DEVICE AND OPERATING METHOD THEREOF - A data storage device includes a nonvolatile memory apparatus suitable for accessing a target region corresponding to an access command, and a processor suitable for calculating a first hash value corresponding to the target region based on a first hash function, and updating an access count that is indexed by the first hash value. | 04-07-2016 |
Patent application number | Description | Published |
20080305511 | Method for screening antioxidant using mutant bacteria and chlorophyllide, and antioxidant screened by the method - Disclosed is a method for screening an antioxidant using mutant bacteria and chlorophyllide, and an antioxidant screened by the same method. More specifically, provided is a method for easy screening of an antioxidant by monitoring growth profiles of specific mutant bacteria in filter discs or medium blocks containing chlorophyllide added thereto, and an antioxidant screened by the same method. | 12-11-2008 |
20100003734 | Production of recombinant photosynthetic bacteria which produces molecular hydrogen in a light independent manner and hydrogen evolution method using above strain - A method of making a photosynthetic bacteria variant which that can produce hydrogen in both day and night. In one embodiment hydrogen is produced in a light independent manner by adding pyruvate lyase and formate lyase complex to a photosynthetic strain of | 01-07-2010 |
20130089907 | HYDROGEN PRODUCTION METHOD USING ALCOHOL AND PHOTOSYNTHETIC BACTERIA - The present disclosure relates to methods for producing hydrogen using photosynthetic bacteria comprising a step of culturing the photosynthetic bacteria in the presence of alcohol at the condition under which the photosynthesis occurs. The present methods are cost-effective and have a high applicability due to the increased hydrogen productivity compared to the conventional methods in addition to not being sensitive by the inhibitory action by ammonium ion present in the culture. Thus the present methods are particularly useful for producing hydrogen using organic wastes which contains large amount of ammonia therein. | 04-11-2013 |
20160046968 | Novel strain secreting fatty acids by phospholipase and method for producing fatty acids using it - A bacterial strain secreting fatty acids, the strain inducing fatty acids to be extracellularly secreted by using phospholipase expressed in the periplasmic space of cell. When a method of producing fatty acids by using the bacterial strain secreting fatty acids is used, fatty acids extracellularly secreted are continuously obtained without apoptosis, leading to lower costs and higher production efficiency. Phospholipase, unlike thioesterase, which is a typical fatty-acid degrading enzyme, decomposes phospholipid to produce free fatty acids. Accordingly, by using the substrate specificity of two different phospholipases, a fatty acid having a specific composition can be selectively produced. Unlike in a typical method in which fat is obtained from cells or tissues, fatty acids secreted during cell growth are obtainable by biding to a hydrophobic material without an extraction process using an organic solvent in large quantities. Accordingly, a more economical, environmentally friendly bio-oil production process can be realized. | 02-18-2016 |