Abstract: A transmitting apparatus is provided. The transmitting apparatus includes: an encoder configured to generate a low-density parity check (LDPC) codeword by LDPC encoding of input bits based on a parity check matrix including information word bits and parity bits, the LDPC codeword including a plurality of bit groups each including a plurality of bits; an interleaver configured to interleave the LDPC codeword; and a modulator configured to map the interleaved LDPC codeword onto a modulation symbol, wherein the interleaver is further configured to interleave the LDPC codeword such that a bit included in a predetermined bit group from among the plurality of bit groups constituting the LDPC codeword onto a predetermined bit of the modulation symbol.

Abstract: A transmitter apparatus and a receiver apparatus are provided. The transmitter apparatus includes: an encoder configured to generate a low density parity check (LDPC) by performing LDPC encoding; an interleaver configured to interleave the LDPC codeword; and a modulator configured to map the interleaved LDPC codeword onto a modulation symbol. The modulator maps a bit included in a predetermined group from among a plurality of groups constituting the LDPC codeword onto a predetermined bit in the modulation symbol.

Abstract: A transmitting apparatus is disclosed. The transmitting apparatus includes an encoder to perform channel encoding with respect to bits and generate a codeword, an interleaver to interleave the codeword, and a modulator to map the interleaved codeword onto a non-uniform constellation according to a modulation scheme, and the constellation may include constellation points defined based on various tables according to the modulation scheme.

Abstract: A transmitter is provided. The transmitter includes: a Low Density Parity Check (LDPC) encoder configured to encode input bits to generate an LDPC codeword including the input bits and parity bits to be transmitted in a current frame; a parity permutator configured to perform by group-wise interleaving a plurality of bit groups configuring the parity bits based on a group-wise interleaving pattern comprising a first pattern and a second pattern; a puncturer configured to puncture some of the parity-permutated parity bits; and an additional parity generator configured to select at least some of the punctured parity bits to generate additional parity bits to be transmitted in a previous frame of the current frame, based on the first pattern and the second pattern.

Abstract: A data storage device including a memory device and a memory controller is disclosed. The memory controller including a super block includes a parity controller in communication with a memory device including a plurality of pages and configured to generate a first parity using data to be written to a first group of pages among the plurality of pages, and generate a second parity using data to be written to a second group of pages among the plurality of pages, a write operation controller configured to control the memory device to store the first parity and the second parity, and an error correction circuitry coupled to apply the first parity and the second parity to correct at least one of the plurality of pages arranged to belong to the first group of pages and the second group of pages.

Abstract: Embodiments relate to a memory system, a memory controller, and a method of operating the same, wherein a plurality of super memory blocks are set, a parity for data stored in the first super memory block is calculated, the calculated parity is stored in a parity buffer, and the parity stored in the parity buffer is written to one of a plurality of parity blocks included in a memory device. Thus, it is possible to solve the problem that the time for writing data to the memory device is delayed due to the time for calculating the parity, and to efficiently manage the parities stored in the memory device.

Abstract: A data storage device including a memory device and a memory controller is disclosed. The memory controller including a super block includes a parity controller in communication with a memory device including a plurality of pages and configured to generate a first parity using data to be written to a first group of pages among the plurality of pages, and generate a second parity using data to be written to a second group of pages among the plurality of pages, a write operation controller configured to control the memory device to store the first parity and the second parity, and an error correction circuitry coupled to apply the first parity and the second parity to correct at least one of the plurality of pages arranged to belong to the first group of pages and the second group of pages.

Abstract: Embodiments relate to a memory system, a memory controller, and a method of operating the same, wherein a plurality of super memory blocks are set, a parity for data stored in the first super memory block is calculated, the calculated parity is stored in a parity buffer, and the parity stored in the parity buffer is written to one of a plurality of parity blocks included in a memory device. Thus, it is possible to solve the problem that the time for writing data to the memory device is delayed due to the time for calculating the parity, and to efficiently manage the parities stored in the memory device.

Abstract: Provided are an apparatus for automating the installation and configuration of infrastructure. The apparatus comprises, an installation information management module which receives installation information of an open-source solution and manages the installation information in a tree structure based on a parent-child relationship, an environment setting management module which receives environment setting information of equipment and manages the environment setting information in a tree structure based on a parent-child relationship, and an installation package management module which generates an installation package and an installation automation script using the installation information and the environment setting information.

Abstract: A method of controlling network bandwidth, the method being performed by a server and comprising: receiving a transmission request for data from a client, calculating a delay time for controlling bandwidth of the client, receiving chunks of the data from the client at intervals of the delay time and restoring the data by merging the chunks. A method of controlling network interface, the method being performed by a server and comprising: receiving a reception request for data from a client, calculating a delay time for controlling bandwidth of the client, and sending chunks of the data to the client at intervals of the delay time.

Abstract: Provided are an apparatus for automating the installation and configuration of infrastructure. The apparatus comprises, an installation information management module which receives installation information of an open-source solution and manages the installation information in a tree structure based on a parent-child relationship, an environment setting management module which receives environment setting information of equipment and manages the environment setting information in a tree structure based on a parent-child relationship, and an installation package management module which generates an installation package and an installation automation script using the installation information and the environment setting information.

Abstract: An electronic apparatus and a method of controlling thereof includes a main body, a display unit configured to be combined with the main body to pivot to be opened and closed and having a touch panel and a display panel, a sensor configured to sense a closed state of the display unit with respect to the main body, and a controller configured to, if the display unit is changed from an opened state to the closed state, stop an operation of the touch panel and then stop an operation of the display panel.

Abstract: An electronic apparatus and a method of controlling thereof includes a main body, a display unit configured to be combined with the main body to pivot to be opened and closed and having a touch panel and a display panel, a sensor configured to sense a closed state of the display unit with respect to the main body, and a controller configured to, if the display unit is changed from an opened state to the closed state, stop an operation of the touch panel and then stop an operation of the display panel.

Abstract: A method of controlling a phase of an alternating current (AC) power having an AC voltage waveform having a predetermined cycle includes counting a number of times a zero crossing signal has been generated, the zero crossing signal being generated whenever a level of the AC voltage waveform becomes “0”; calculating a half cycle of the AC voltage waveform based on times at which the counted number of times the zero crossing signal has been generated changes; detecting phases that divide an area surrounded by a waveform corresponding to the half cycle of the AC voltage waveform into a predetermined number of equal areas; and generating control pulse signals based on the detected phases.

Abstract: A power control method and apparatus to heat a heating roller includes heating a heating roller provided to fix a toner image of print data in an image forming apparatus, the heating roller having a heating resistor to receive roller power. The power control method includes gradually increasing a maximum level of a source power supplied from an external source up to a specific maximum supply level, and supplying the maximum source power to the heating resistor as the roller power while gradually increasing the maximum level of the source power up to a specific maximum supply level, measuring a surface temperature of the heating roller, and supplying the source power of which maximum level is equal to the maximum supply level to the heating resistor as the roller power until the measured surface temperature reaches a specific fixing target temperature, and fixing the toner image onto a printing medium.

Abstract: A power control apparatus and an image forming apparatus include a non-heating control unit to control non-heating control components according to a power-on signal, and a heating control unit to increase a level of a source power supplied as roller power and to supply the increased level of the roller power to a heating roller according to phases of current of the source power such that heating the roller reaches a temperature before a power-on process of the non-heating control unit is completed.

Abstract: A power control method and apparatus to heat a heating roller includes heating a heating roller provided to fix a toner image of print data in an image forming apparatus, the heating roller having a heating resistor to receive roller power. The power control method includes gradually increasing a maximum level of a source power supplied from an external source up to a specific maximum supply level, and supplying the maximum source power to the heating resistor as the roller power while gradually increasing the maximum level of the source power up to a specific maximum supply level, measuring a surface temperature of the heating roller, and supplying the source power of which maximum level is equal to the maximum supply level to the heating resistor as the roller power until the measured surface temperature reaches a specific fixing target temperature, and fixing the toner image onto a printing medium.

Abstract: An image forming apparatus includes a power supply unit that controls a level of electrical power supplied to the heating lamp during a warm-up of the heating unit that involves at least a first warm-up stage. During the first warm-up stage, when power begins to be supplied to the heating lamp, the power supply unit gradually increases a level of power supplied to the heating lamp from zero to a defined supply level according to a phase control of an alternating current (AC) of the source power. If a second warm-up stage is included, during the second warm-up stage, the power supply unit may maintain the level of power supplied to the heating lamp at the defined supply level until the measured surface temperature of the heating unit has reached a defined target temperature.

Abstract: An image fixing control system and method are provided comprising a power supply, a power switching unit, a heating roller, in which a temperature detector detects a temperature of the heating roller, and a controller detects a temperature variation slope of the heating roller using the temperature detected by the temperature detector and controls an on and off switching operation of the power switching unit according to the detected temperature variation slope. Accordingly, by varying a duty ratio of power through a phase control using a temperature variation slope of a heating roller, a fine control of a fixing system can be performed. In addition, since a temperature variation, that is, overshoot or undershoot, of the heating roller is reduced, a fixing efficiency can be increased.

Abstract: A power control apparatus includes a heating roller provided to fix a toner image of print data in an image forming apparatus, the heating roller having a heating resistor to receive roller power. A maximum level of a source power supplied from an external source is gradually increased up to a specific maximum supply level and the maximum source power to the heating resistor is supplied as the roller power while gradually increasing the maximum level of the source power up to a specific maximum supply level. A surface temperature of the heating roller is measured, and the source power of which maximum level is equal to the maximum supply level is supplied to the heating resistor as the roller power until the measured surface temperature reaches a specific fixing target temperature, and the toner image is fixed onto a fed printing medium.