Abstract: Disclosed herein are a broadcast signal transmission method for signaling a transmission structure based on a combination of LDM technology and MIMO technology and an apparatus using the same. The broadcast signal transmission method may include generating first signaling information, indicating a transmission structure based on a combination of Multiple-Input Multiple-Output (MIMO) technology and Layered Division Multiplexing (LDM) technology, for a first subframe of a current broadcast signal frame, generating second signaling information, indicating a transmission structure based on a combination of the MIMO technology and the LDM technology, for a current subframe subsequent to the first subframe, and generating a broadcast signal using the first signaling information and the second signaling information.

Abstract: A battery capacity estimation apparatus including a voltage measuring unit measuring a voltage of a battery cell, a filtering unit determining voltage data as first data when a logging pattern of the voltage data of the battery cell deviates from a preset reference range, a statistical analyzing unit determining second data through statistical analysis on the voltage data of the battery cell, and a capacity estimating unit estimating a capacity by applying data, classified by the filtering unit or the statistical analyzing unit for a battery cell that is a measurement target, to capacity estimation models generated separately for the first data and the second data.

Abstract: Provided is a machine learning training apparatus including a data managing unit configured to collect new data, a data analyzing unit configured to extract a feature of data used for generation of a machine learning model and a feature of the new data, and a determining unit determining whether a number of pieces of the new data is less than a reference number and determining whether to apply the new data to the machine learning model using different methods according to the number of pieces of the new data.

Abstract: A battery diagnosis device includes a voltage measurement unit for measuring a voltage of a battery cell, a fitting value calculation unit for calculating a fitting voltage of the battery cell in a rest section after charging and discharging of the battery cell, and a diagnosis unit for diagnosing an abnormality of the battery cell by comparing the measured voltage measured by the voltage measurement unit and the fitting voltage calculated by the fitting value calculation unit, with respect to the rest section of the battery cell.

Abstract: A battery abnormality diagnosis apparatus including a voltage obtaining unit obtaining a voltage of a battery cell, an analyzing unit calculating estimation information for estimating the voltage of the battery by analyzing the voltage of the battery cell, and a diagnosing unit diagnosing abnormality of the battery cell by analyzing the estimation information.

Abstract: An apparatus and method for generating a broadcast signal frame corresponding to a time interleaver supporting a plurality of operation modes are disclosed. An apparatus for generating broadcast signal frame according to an embodiment of the present invention includes a combiner configured to generate a multiplexed signal by combining a core layer signal and an enhanced layer signal; a power normalizer configured to reduce the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time-interleaved signal by performing interleaving that is applied to both the core layer signal and the enhanced layer signal; and a frame builder configured to generate a broadcast signal frame including a preamble for signaling time interleaver information corresponding to the time interleaver, the preamble includes a field indicating a start position of a first complete FEC block corresponding to each of physical layer pipes.

Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 16200 and a code rate of 4/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for 16-symbol mapping.

Abstract: One aspect of the present invention provides a photocurable resin composition for a surgical guide, which comprises 20 to 50 parts by weight of (meth)acrylate-based urethane copolymer; 40 to 70 parts by weight of a first (meth)acrylate-based monomer; 4 to 9 parts by weight of a second (meth)acrylate-based monomer; 1 to 4 parts by weight of a photoinitiator; and 0.005 to 1 parts by weight of a UV absorber, a surgical guide manufactured therefrom, and a method for manufacturing the same.

Abstract: The present invention relates to an anti-adhesion polymer composition. The anti-adhesion polymer composition according to the present invention has excellent adhesion performance so as to be continuously attached successfully to a wound site generated during surgery while also effectively exhibiting an anti-adhesion function, has antibacterial and hemostatic properties, and has excellent formulation stability.

Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 16200 and a code rate of 3/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for 64-symbol mapping.

Abstract: A power supply system may include a target device and an adapter. The target device may include an adapter connection switch that receives adapter recognition information to form a connection with the adapter, a voltage detection unit that receives an output voltage from an adapter, and a voltage-change-requesting unit that outputs a voltage to request a voltage change based on information on the output voltage from the adapter. The adapter may include a device information recognition unit that receives the voltage to request a voltage change, and an output-voltage-changing unit that changes the output voltage based on the voltage to request a voltage change.

Abstract: A battery management system includes a sensor to sense voltage and current of a battery, memory to store over-potential management information including reference peak and reference peak voltage values, and a controller to command constant-current charging using a maximum allowable C-rate to a charging circuit when the reference peak value is equal to or larger than a threshold peak value, in response to a charge request, determine a differential capacity curve indicating a correlation between the voltage and differential capacity of the battery within a range based on the sensed voltage and current during the charging, determine main peak and main peak voltage values indicating differential capacity and voltage of a peak of the differential capacity curve, respectively. and update the reference peak and reference peak voltage values to equal the main peak and main peak voltage values, when the main peak value is less than the threshold peak value.

Abstract: An apparatus for diagnosing a state of a battery includes a profile obtaining unit configured to obtain a voltage profile of a battery for voltage and capacity of the battery, and a control unit configured to obtain a differential profile for the voltage and the capacity from the voltage profile, select a plurality of peaks included in a predetermined voltage section of the obtained differential profile, determine a first peak associated with a negative electrode and a second peak associated with a positive electrode among the plurality of selected peaks, compare the first peak and the second peak with a first reference peak and a second reference peak of a preset reference profile, respectively, and diagnose a state of the battery based on at least one of a efdifference between the first peak and the first reference peak or a efdifference between the second peak and the second reference peak.

Abstract: A battery diagnosis device for diagnosing a type of error occurring in a battery cell based on the voltage of the battery cell, including a voltage measurement circuit, a data processing circuit and a diagnosis circuit, the voltage measurement circuit periodically measures the voltage at both ends of the battery cell in a rest section, the data processing circuit derives a statistical value indicating the state of the battery cell based on difference values between the voltage values measured by the voltage measurement circuit and fitting values calculated based on the measured voltage values and the diagnosis circuit determines whether an error has occurred in the battery cell based on statistical values in a plurality of rest sections, and determines the type of error.

Abstract: An apparatus and method for broadcast signal frame using layered division multiplexing are disclosed. An apparatus for generating broadcast signal frame according to an embodiment of the present invention includes a combiner configured to generate a multiplexed signal by combining a core layer signal and an enhanced layer signal at different power levels; a power normalizer configured to reduce the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time-interleaved signal by performing interleaving that is applied to both the core layer signal and the enhanced layer signal; and a frame builder configured to generate a broadcast signal frame including a preamble for signaling, start position information of Physical Layer Pipes (PLPs) and time interleaver information shared by the core layer signal and the enhanced layer signal.

Abstract: A power supply system may include a target device and an adapter. The target device may include an adapter connection switch that receives adapter recognition information to form a connection with the adapter, a voltage detection unit that receives an output voltage from an adapter, and a voltage-change-requesting unit that outputs a voltage to request a voltage change based on information on the output voltage from the adapter. The adapter may include a device information recognition unit that receives the voltage to request a voltage change, and an output-voltage-changing unit that changes the output voltage based on the voltage to request a voltage change.

Abstract: Disclosed herein are a method for transmitting a broadcast signal for signaling information about a combination of Layered-Division Multiplexing (LDM) technology and Multiple-Input Multiple-Output (MIMO) technology and an apparatus using the method. The method includes generating first signaling information indicating whether MIMO technology is applied to an enhanced layer by LDM technology, generating second signaling information indicating an MIMO application method when the MIMO technology is applied to the enhanced layer, and generating a broadcast signal using the first signaling information and the second signaling information.

Abstract: Disclosed herein are a broadcast signal transmission/reception method using multiple antennas and layered-division multiplexing and an apparatus for the same. A broadcast signal transmission apparatus includes a Multiple-Input Multiple-Output (MIMO) Bit-Interleaved Coded Modulation (BICM) unit for dividing enhanced layer data into two enhanced layer signals having different polarizations, a combination unit for generating a multiplexed signal corresponding to a first transmitting antenna by combining a core layer signal corresponding to core layer data with a first enhanced layer signal, and transmission signal generation units for generating a first transmission signal, corresponding to the multiplexed signal and transmitted through the first transmitting antenna, and a second transmission signal, corresponding to a second enhanced layer signal and transmitted through a second transmitting antenna.

Abstract: A disclosed apparatus for accomplishing such a task may include (1) a circuit board incorporated into a module designed for insertion into slots of computing devices, (2) at least one conductive contact disposed on the circuit board, (3) a counter circuit disposed on the circuit board and communicatively coupled to the conductive contact, wherein the counter circuit comprises (A) a signal-change detector that detects signal changes as the module is inserted into one of the slots of the computing devices and (B) a counter device that maintains a dynamic count indicative of a number of times that the module has been inserted into one of the slots of the computing devices based at least in part on the signal changes, (4) a battery electrically coupled to the counter circuit, wherein the battery powers the counter device prior to the insertion. Various other apparatuses, systems, and methods are also disclosed.

Abstract: Provided is a medium composition for differentiation of a human induced pluripotent stem cell to a dermal papilla precursor cell, a differentiation method, and a use for inducing hair follicle neogenesis using the differentiated dermal papilla precursor cell. Further provided is a method for differentiating a human induced pluripotent stem cell into a dermal papilla precursor cell having hair follicle forming ability and a composition of a dermal papilla precursor cell specific differentiation medium for the above differentiation, and have effectively induced hair follicle neogenesis consisting only of human cells without conventional mouse-human hybrid hair follicles by using the human induced dermal papilla precursor cell and a human induced epidermal precursor cell obtained through the differentiation method. Human hair follicle tissue produced is expected to be useful as a therapeutic method for patients suffering from hair loss by overcoming the limitations of hair loss treatments.