Abstract: There is provided a method of processing uplink Ethernet packets of an aggregation node included in a distributed antenna system, the method includes: receiving a plurality of uplink Ethernet packets; summing the plurality of received uplink Ethernet packets; and transmitting the summed uplink Ethernet packets in an uplink direction.

Abstract: There is provided a method of processing uplink Ethernet packets of an aggregation node included in a distributed antenna system, the method includes: receiving a plurality of uplink Ethernet packets; summing the plurality of received uplink Ethernet packets; and transmitting the summed uplink Ethernet packets in an uplink direction.

Abstract: The present disclosure provides a light emitting module replacement type light emitting device including: one or more light emitting modules (100) configured to include a substrate (110), one or more light emitting diodes (120) mounted on one side surface of the substrate (110) in a third direction, and a light emitting module terminal (130) electrically connected to the one or more light emitting diodes (120); a heat sink (200) having a contact surface (S) which is configured to come in contact with the light emitting modules (100); and one or more binding clips (300) coupled to the heat sink (200), positioned on the contact surface (S) and electrically connected to an external power supply.

Abstract: The present disclosure provides a light emitting module replacement type light emitting device including: one or more light emitting modules (100) configured to include a substrate (110), one or more light emitting diodes (120) mounted on one side surface of the substrate (110) in a third direction, and a light emitting module terminal (130) electrically connected to the one or more light emitting diodes (120); a heat sink (200) having a contact surface (S) which is configured to come in contact with the light emitting modules (100); and one or more binding clips (300) coupled to the heat sink (200), positioned on the contact surface (S) and electrically connected to an external power supply.

Abstract: The present disclosure relates to a method and an apparatus for federated learning of an artificial intelligence model. According to an exemplary embodiment of the present disclosure, a federated learning method of an artificial intelligence model includes: training a first local artificial intelligence model and a second local artificial intelligence model using data sets of a first client and a second client among the plurality of clients; calculating performance values for the first local artificial intelligence model and the second local artificial intelligence model by transmitting the first local artificial intelligence model to the second client and transmitting the second local artificial intelligence model to the first client; comparing the performance values to remove one of the first client and the second client; and training a global model using a client which is not removed.

Abstract: There is provided a method of processing uplink Ethernet packets of an aggregation node included in a distributed antenna system, the method includes: receiving a plurality of uplink Ethernet packets; summing the plurality of received uplink Ethernet packets; and transmitting the summed uplink Ethernet packets in an uplink direction.

Abstract: There is provided a method of processing uplink Ethernet packets of an aggregation node included in a distributed antenna system, the method includes: receiving a plurality of uplink Ethernet packets; summing the plurality of received uplink Ethernet packets; and transmitting the summed uplink Ethernet packets in an uplink direction.

Abstract: According to an aspect of the inventive concept of the disclosure, an evolved radio access network comprises: a plurality of signal sources supporting any one of heterogeneous mobile communication technology standards and data services, a hub connected to a plurality of signal sources, and a plurality of remote units connected through a hub and a transmission network.

Abstract: There is provided a method of processing uplink Ethernet packets of an aggregation node included in a distributed antenna system, the method includes: receiving a plurality of uplink Ethernet packets; summing the plurality of received uplink Ethernet packets; and transmitting the summed uplink Ethernet packets in an uplink direction.

Abstract: An optical film and a digital pen system using the same are provided. The optical film includes a film layer including a fine structure, a coating layer coated on the fine structure and having an infrared ray scattering property, and a matching layer laminated above or below the film layer and having a refractive index matching a refractive index of the fine structure within a predetermined error range.

Abstract: An apparatus for controlling a light emitting diode (LED) module having a light intensity compensation function includes a light intensity sensor measuring intensity of light irradiated by the LED module depending on a current value, based on a predetermined light intensity signal; a compensation signal generating unit generating a compensated light intensity signal to compensate for an error between measured light intensity and predetermined light intensity; and a pulse width modulation signal generating unit allowing the LED module to irradiate light having uniform brightness in such a manner that a pulse width modulation signal depending on the compensated light intensity signal is applied to an LED driver, in an apparatus for controlling LED lighting including an LED driver.

Abstract: Provided are an optical film and a digital pen system including the same. The optical film includes a film layer having fine structures thereon, a coating layer coated on the fine structures to form a dot pattern and having a feature of scattering infrared light, and a matching layer stacked above or below the film layer and having a refractive index matched to a refractive index of the film layer within a predetermined range of errors.

Abstract: Disclosed is a device for recognizing a dot pattern, including: a dot pattern recognizing unit configured to recognize a first dot pattern and a second dot pattern on a recording medium, on which a dot pattern is formed; a location information extracting unit configured to extract first location information from the first dot pattern, and extract second location information from the second dot pattern; a communication unit configured to transmit the first location information and the second location information to the content executing device; and a controller configured to control the dot pattern recognizing unit, the location information extracting unit, and the communication unit, in which the first dot pattern is a dot pattern recognized when the device is spaced apart from the recording medium, and the second dot pattern is a dot pattern recognized when the device is in contact with the recording medium.

Abstract: Disclosed is a device for recognizing a dot pattern, including: a dot pattern recognizing unit configured to recognize a first dot pattern and a second dot pattern on a recording medium, on which a dot pattern is formed; a location information extracting unit configured to extract first location information from the first dot pattern, and extract second location information from the second dot pattern; a communication unit configured to transmit the first location information and the second location information to the content executing device; and a controller configured to control the dot pattern recognizing unit, the location information extracting unit, and the communication unit, in which the first dot pattern is a dot pattern recognized when the device is spaced apart from the recording medium, and the second dot pattern is a dot pattern recognized when the device is in contact with the recording medium.

Abstract: An optical film and a digital pen system using the same are provided. The optical film includes a film layer including a fine structure, a coating layer coated on the fine structure and having an infrared ray scattering property, and a matching layer laminated above or below the film layer and having a refractive index matching a refractive index of the fine structure within a predetermined error range.

Abstract: Disclosed are an optical film and an electronic pen system. The electronic pen system includes: a reflective display configured to display information by using surrounding light; an optical film disposed on the reflective display, and formed with an information pattern including virtual grid lines and a plurality of marks for providing position information by using light reflected from the reflective display; and an electronic pen configured to recognize the information pattern, and transmit a signal for displaying graphic information on the reflective display.

Abstract: Disclosed are a reflective display and an electronic pen system using the same. An information pattern for providing position information is formed at pixels configuring the reflective display, and the information pattern includes virtual grid lines and marks.

Abstract: Provided is a rescue request signal processing device connected with a repeater and including a signal detector configured to detect identification information of a wireless communication terminal from an uplink signal outputted from the wireless communication terminal; a signal strength information generator configured to generate strength information of the uplink signal of the wireless communication terminal when the detected identification information of the wireless communication terminal is identical with identification information of a wireless communication terminal included in a request signal for location information transmitted from a location information requesting device; and a transmitter configured to transmit the strength information of the uplink signal and at least one of location information and identification information of the repeater to a location information server.

Abstract: A semiconductor memory device comprises a memory cell array comprising a plurality of memory cells, and a filling command determiner that receives a command signal and an address signal and determines whether the command signal corresponds to a filling command. Upon determining that the command signal corresponds to a filling command, the filling command determiner connects a first source voltage to a bitline and connects a second source voltage to a complementary bitline corresponding to the bitline. The bitline is connected to a selected memory cell corresponding to the address signal.

Abstract: A method and apparatus for management worn resistive memory cells are presented. A normal read mode or worn memory cell detecting mode are used depending on the wear state of a resistive memory cell. A detection reference point is changed upon wear indication to detect the resistance of the resistive memory cell. The resistance of the resistive memory cell is detected using the changed detection reference point to determine whether or not the resistive memory cell is worn by comparing the detected resistance to a wear reference level.