Abstract: A method and an apparatus are provided for transmitting and receiving signaling information in a digital broadcasting system. The method includes encoding first signaling information for a physical layer to generate a first coded block; encoding second signaling information to generate a second coded block; and transmitting a frame including the first coded block, the second coded block, and at least one physical layer pipe (PLP) data. The first signaling information has a fixed number of bits, and the second signaling information has a variable number of bits. The first signaling information includes information indicating a forward error correction (FEC) type of the second signaling information for receiving the second information, and the second signaling information includes information indicating a modulation scheme used for a related PLP data.

Abstract: A transmitting apparatus includes: a frame generator configured to generate a frame including a plurality of OFDM symbols; and a signal processor configured to signal-process the generated frame, wherein the plurality of OFDM symbols are included in a bootstrap, a preamble including an L1 basic and an L1 detail, and a payload, and wherein the bootstrap includes information on an FFT size of the OFDM symbols included in the preamble, a length of a guard interval (GI) inserted in the preamble, and a pattern of a preamble pilot inserted in the preamble, and information on an L1 basic mode.

Abstract: Disclosed are a scanning apparatus, a mobile apparatus, and a scan job performing method thereof. The scan job performing method includes discovering at least one mobile apparatus supporting the scan-to-mobile function by using multicasting by the scanning apparatus, receiving information on at least one discovered mobile apparatus, setting a connection between the scanning apparatus and the mobile apparatus by using the received information of the mobile apparatus, and transmitting a scan image generated by the scanning apparatus to the mobile apparatus. With this configuration, authentication and connection between the scanning apparatus and the mobile apparatus are set by multicasting to thereby improve user's convenience.

Abstract: A method is provided for channel encoding in a communication system using an LDPC code. The method includes encoding input bits using a BCH code, shortening bits of the encoded input bits according to a number of bit groups to be shortened and an order among a plurality of orders according to which the bit groups are shortened, wherein the number of bit groups to be shortened is based on a number of bits to be shortened, which is based on a number of the encoded input bits, encoding information bits including the encoded input bits and the shortened one or more bits, using an LDPC code to generate parity bits, puncturing bits in the parity bits based on a puncturing parameter among puncturing parameters, and transmitting a signal generated from the encoded information bits based on the punctured bits. The plurality of orders being based on the puncturing parameters and including first and second orders.

Abstract: An antenna and a method of manufacturing the antenna. The antenna includes an antenna structure, and a metamaterial that has a high dielectric constant and that includes metal patterns arranged at regular intervals.

Abstract: The present invention provides a system and a method for switching a line short-circuit fault section in an inverter-based stand-alone microgrid, the system comprising: multiple intelligent switchgears disposed on a line in a stand-alone microgrid so as to control opening or closing of the line; a battery inverter having a built-in current limiter so as to limit a current output therefrom; and an operating system for receiving short-circuit fault information of the line from the multiple intelligent switchgears, determining a fault section, and controlling the battery inverter to limit the output current. The present invention can quickly and accurately switch a line short-circuit fault section occurring in a stand-alone microgrid which does not include separate cutoff equipment such as a recloser.

Abstract: The present invention relates to a power conditioning system (PCS) efficiency-considered microgrid operation device comprising: a scheduling unit for scheduling outputs of a controllable load, a battery, and an emergency internal combustion generator operated in a microgrid; and an operation control unit for controlling the operation of the battery, the emergency internal combustion generator, and the controllable load according to charging/discharging of the battery, the output of the emergency internal combustion generator, and the output of the controllable load, which have been scheduled, by the scheduling unit, wherein the scheduling unit schedules charging/discharging by considering the efficiency of a PCS such that a state of charge (SOC) of the battery is maintained within a preset range. According to the present invention, the microgrid can be efficiently operated by considering the charging/discharging efficiency of the PCS.

Abstract: The present invention relates to a method for controlling the frequency of a stand-alone microgrid wherein an energy storage device of the stand-alone microgrid is operated as a main power source by controlling a battery power conditioning system (PCS) of the stand-alone microgrid in a constant voltage constant frequency (CVCF) mode. According to the present invention, it is possible to operate the frequency stably while considering the fuel cost and power generation efficiency of a stand-alone microgrid.

Abstract: A transmitting apparatus is provided. The transmitting apparatus includes at least one processor configured to implement: an L1 signaling generator configured to generate L1 signaling; a frame generator configured to generate a frame having a payload in which a plurality of Physical Layer Pipes (PLPs) are included; and a signal processor configured to transmit the frame by adding a preamble including the L1 signaling in the frame. The L1 signaling includes first information representing an alignment state of starting positions of PLPs included in different layers among the plurality of PLPs and second information representing at least one offset of the starting positions. Accordingly, the preamble includes the L1 signaling including information on an arrangement order of the plurality of PLPs included in the payload.

Abstract: A method and an apparatus are provided for transmitting and receiving signaling information in a digital broadcasting system. First signaling information for a physical layer is encoded to generate a first coded block. Second signaling information is encoded to generate a second coded block. A frame including the first coded block, the second coded block and at least one physical layer pipe (PLP) data is transmitted. The first signaling information has a fixed number of bits. The second signaling information has a variable number of bits. The first signaling information includes information indicating a forward error correction (FEC) type of the second signaling information for receiving the second information. The second signaling information includes information indicating an FEC type used for a related PLP data.

Abstract: A transmitter includes a baseband frame generator configured to generate a baseband frame comprising a baseband header, a data field, and a padding field; and a mapper to map a plurality of data streams to the data field, wherein the baseband frame generator is further configured to insert a padding length field indicating a byte number of the padding field in the baseband frame, and insert a padding indicator field indicating information about the padding length field in the baseband header.

Abstract: A method of writing a near field communication (NFC) tag using a mobile terminal includes establishing a wireless connection between the mobile terminal and an image forming apparatus, extracting a predetermined field value corresponding to a data structure of the NFC tag from information collected while establishing the wireless connection, generating tag information including the predetermined field value by arranging the predetermined field value according to the data structure, and writing the tag information to the NFC tag through NFC tagging.

Abstract: The present invention relates to an inverter device for a microgrid, and a method for controlling the same, the inverter device including: a waveform detector detecting a voltage waveform and a current waveform applied to a load; a control unit determining whether a sine wave appears based on the detected voltage waveform and the detected current waveform and performing voltage control or low order harmonic compensation depending on a determination result; and a switch generating a voltage waveform in a form of the sine wave by being turned on/off depending on a control signal received from the control unit and supplying the generated voltage waveform in the form of the sine wave to the load.

Abstract: A method of forming an image using a mobile terminal supporting near field communication (NFC) includes launching a mobile application corresponding to an application identifier of tag information of an NFC tag obtained through first NFC tagging, generating data of a job to be performed by an image forming apparatus through the mobile application when the NFC tag is detected again through second NFC tagging, the job being determined according to a state of the mobile application during the second NFC tagging, and transmitting the generated data to the image forming apparatus.

Abstract: A transmitting apparatus includes: a frame generator configured to generate a frame including a plurality of OFDM symbols; and a signal processor configured to signal-process the generated frame, wherein the plurality of OFDM symbols are included in a bootstrap, a preamble including an L1 basic and an L1 detail, and a payload, and wherein the bootstrap includes information on an FFT size of the OFDM symbols included in the preamble, a length of a guard interval (GI) inserted in the preamble, and a pattern of a preamble pilot inserted in the preamble, and information on an L1 basic mode.

Abstract: Provided are a transmitting apparatus, a receiving apparatus and controlling methods thereof. The transmitting apparatus includes: at least one processor configured to implement a packet generator which generates a packet including a header and a payload based on a plurality of input packets; and a signal processor which signal-processes the generated packet, and a transmitter configured to transmit the signal-processed packet. A base field included in the header includes a first field set to a first value representing that the base field is a first length or a second value representing that the base field is a second length.

Abstract: A method is provided for channel encoding in a communication system using a Low-Density Parity Check (LDPC) code. The method includes grouping information bits into a plurality of groups, determining an order of the plurality of groups to be shortened, according to a code rate, determining a length of information bits to be obtained by shortening the plurality of groups, shortening the plurality of groups on a group basis in the determined order, based on the determined length of the information bits, and LDPC-encoding shortened information bits.

Abstract: A method of determining reserved tones to be used for reduction of a peak to average power ratio (PAPR) of a signal includes: randomly selecting carrier indices for the reserved tones and generating a kernel signal based on the randomly selected carrier indices for the reserved tones; calculating a comparison reference average value of the kernel signal, comparing the calculated comparison reference average value with a prestored comparison reference average value, and preliminarily determining carrier indices of the reserved tones based on the comparison; re-arranging an order of the preliminarily determined carrier indices of the reserved tones; calculating comparison reference average values of kernel signals generated by changing each of the re-arranged carrier indices of the reserved tones, and finally determining carrier indices of the reserved tones which generate a kerneal signal having the smallest comparison reference average value among the comparison reference average values as indices of the rese

Abstract: A method of writing a near field communication (NFC) tag using a mobile terminal includes establishing a wireless connection between the mobile terminal and an image forming apparatus, extracting a predetermined field value corresponding to a data structure of the NFC tag from information collected while establishing the wireless connection, generating tag information including the predetermined field value by arranging the predetermined field value according to the data structure, and writing the tag information to the NFC tag through NFC tagging.

Abstract: A transmitter includes a baseband frame generator configured to generate a baseband frame comprising a baseband header, a data field, and a padding field; and a mapper to map a plurality of data streams to the data field, wherein the baseband frame generator is further configured to insert a padding length field indicating a byte number of the padding field in the baseband frame, and insert a padding indicator field indicating information about the padding length field in the baseband header.