Abstract: A ring-type wearable device is disclosed. The disclosed ring-type wearable device comprises: an outer ring member; an inner ring member separably inserted into the outer ring member; a sensor unit disposed in the outer ring member; and a control unit disposed in the outer ring member so as to be electrically connected to the sensor unit, wherein the sensor unit can maintain constant sensitivity in correspondence to the thickness of the inner ring member.

Abstract: Provided is a duct docking device for a ventilation seat of a vehicle. The duct docking device enables air to be easily blown to a seatback and a seat cushion with a passenger in a seat using only one blower by enabling a seatback duct mounted at the seatback and a seat cushion duct mounted at the seat cushion to be hermetically docked through a connector duct, etc. at an unfolded position of the seatback in which a passenger can sit, and by enabling the seatback duct mounted at the seatback and the seat cushion duct mounted at the seat cushion to be separated from each other at a folded position of the seatback in consideration of that there is no passenger in the seat.

Abstract: A vehicle lamp forms a predetermined beam pattern using a plurality of lamp modules arranged in at least one direction. Each of the plurality of lamp modules includes a light source unit that generates light; an optical unit that is disposed in front of the light source unit and transmits the light from the light source unit so that at least a portion of the light incident to an incident surface of the optical unit is output through an exit surface thereof to form the predetermined beam pattern; and an optical path adjustment unit that guides the light generated from the light source unit to the optical unit by adjusting paths of the light. The exit surface of the optical unit of one of the plurality of lamp modules is disposed more forward than the exit surface of the optical unit of another one of the plurality of lamp modules.

Abstract: A vehicle lamp forms a predetermined beam pattern using a plurality of lamp modules arranged in at least one direction. Each of the plurality of lamp modules includes a light source unit that generates light; an optical unit that is disposed in front of the light source unit and transmits the light from the light source unit so that at least a portion of the light incident to an incident surface of the optical unit is output through an exit surface thereof to form the predetermined beam pattern; and an optical path adjustment unit that guides the light generated from the light source unit to the optical unit by adjusting paths of the light. The exit surface of the optical unit of one of the plurality of lamp modules is disposed more forward than the exit surface of the optical unit of another one of the plurality of lamp modules.

Abstract: An auxiliary battery system for a vehicle includes an auxiliary battery configured to provide power to an electronic device of the vehicle; a battery sensor configured to calculate a state of charge of the auxiliary battery; and a control unit configured to control charging of the auxiliary battery by the high voltage battery, in which a charging strategy of the auxiliary battery is different depending upon whether communication between the battery sensor and the control unit is activated by a request of the battery sensor or activated by a wake-up of the control unit.

Abstract: An automotive hologram image producing lamp is provided. The automotive hologram image producing lamp includes beam exposed to the exterior to be provided in the form of a hologram image. The automotive hologram image producing lamp includes a light source configured to emit light, a hologram forming unit configured to receive incidence of a first partial light among the emitted light to form a hologram and a light pattern forming unit configured to transmit a second partial light among the emitted light to form a information providing light pattern.

Abstract: Provided is an automotive lamp which forms a stereoscopic image by transmitting light of a light source through a lenticular lens. The automotive lamp includes: a light source; and a light pattern forming component which forms a plurality of light patterns by transmitting light emitted from the light source, wherein the light pattern forming component enables a light pattern of a different image to be observed based on a viewing angle, and light patterns of different images provide a continuous motion as the viewing angle changes sequentially in a specific direction.

Abstract: An automotive hologram image producing lamp is provided. The automotive hologram image producing lamp includes beam exposed to the exterior to be provided in the form of a hologram image. The automotive hologram image producing lamp includes a light source configured to emit light, a hologram forming unit configured to receive incidence of a first partial light among the emitted light to form a hologram and a light pattern forming unit configured to transmit a second partial light among the emitted light to form a information providing light pattern.

Abstract: Provided is an automotive lamp which forms a stereoscopic image by transmitting light of a light source through a lenticular lens. The automotive lamp includes: a light source; and a light pattern forming component which forms a plurality of light patterns by transmitting light emitted from the light source, wherein the light pattern forming component enables a light pattern of a different image to be observed based on a viewing angle, and light patterns of different images provide a continuous motion as the viewing angle changes sequentially in a specific direction.

Abstract: An electromagnetic bandgap structure is provided, which includes a ground layer; a first power layer facing an upper portion of the ground layer with a dielectric interposed and comprising at least one first patch and at least one first branch; and a second power layer facing an upper portion of the first power layer with a dielectric interposed and comprising at least one second patch and at least one second branch.

Abstract: An apparatus and method for managing a satellite service resource is provided. The method may include measuring, using a communication system monitoring unit, at least one satellite service signal being received for at least one satellite service, calculating, using a service resource management unit, an optimum frequency and an optimum output power for the at least one satellite service through analysis of a satellite service resource, allocating the calculated frequency and the calculated output power to the at least one satellite service, and transmitting the allocated information to the communication system monitoring unit, and comparing, using the communication system monitoring unit, the measured information to the allocated information, and transmitting a result of the comparison to the service resource management unit.

Abstract: Provided is an apparatus and method for monitoring a status of a satellite, including classifying satellite telemetry information and space weather information and storing the information in a storage unit including respective databases, predicting whether a predetermined type of satellite failure occurs based on the space weather information, and generating satellite control command information to change a status of a predetermined satellite configuration when a satellite failure determining index used to determine a possibility of the satellite failure is beyond a predetermined critical alert range.

Abstract: A method and apparatus for extracting an ionospheric trace are provided. The trace extraction method includes: searching for a signal data having maximum strength among signal data displayed on an ionogram of the ionosphere; selecting the point where the signal data having maximum strength is placed as a first point; extracting the trace on the right side of the first point while increasing frequency of the signal data; and extracting the trace on the left side of the first point while decreasing the frequency.

Abstract: Provided is an apparatus for monitoring a communication satellite, including: a receiver to receive at least one satellite service signal from a satellite repeater; a measurement unit to measure a frequency, a bandwidth, and a magnitude of the at least one satellite service signal; a controller to determine whether a signal transmitting station malfunctions by comparing the at least one satellite service signal with a predetermined reference value based on the measurement result; and a communication unit to inform an operator terminal about a malfunction of the signal transmitting station when the signal transmitting station is determined to malfunction.

Abstract: An electromagnetic bandgap structure is provided, which includes a ground layer; a first power layer facing an upper portion of the ground layer with a dielectric interposed and comprising at least one first patch and at least one first branch; and a second power layer facing an upper portion of the first power layer with a dielectric interposed and comprising at least one second patch and at least one second branch.

Abstract: Provided is an apparatus and method for monitoring a status of a satellite, including classifying satellite telemetry information and space weather information and storing the information in a storage unit including respective databases, predicting whether a predetermined type of satellite failure occurs based on the space weather information, and generating satellite control command information to change a status of a predetermined satellite configuration when a satellite failure determining index used to determine a possibility of the satellite failure is beyond a predetermined critical alert range.

Abstract: Provided is an apparatus and method for analyzing an effect on a wireless communication system that may analyze an effect of a solar activity on a wireless communication system based on strength of solar cosmic radio waves. An apparatus for analyzing an effect on a wireless communication system may include a solar cosmic radio wave strength collecting unit to collect strength of solar cosmic radio waves according to a solar activity; and an interference determining unit to determine a level of interference of the solar activity against the wireless communication system, based on the strength of solar cosmic radio waves.

Abstract: An apparatus and method for managing a satellite service resource is provided. The method may include measuring, using a communication system monitoring unit, at least one satellite service signal being received for at least one satellite service, calculating, using a service resource management unit, an optimum frequency and an optimum output power for the at least one satellite service through analysis of a satellite service resource, allocating the calculated frequency and the calculated output power to the at least one satellite service, and transmitting the allocated information to the communication system monitoring unit, and comparing, using the communication system monitoring unit, the measured information to the allocated information, and transmitting a result of the comparison to the service resource management unit.

Abstract: Disclosed is a satellite performance monitoring system. The satellite performance monitoring system may include a satellite communication controlling apparatus that is installed outdoors to transmit a test signal for measuring a performance of a satellite transponder to the satellite transponder and thereby receive a test response signal from the satellite transponder, and to transmit a reference signal to the satellite transponder and thereby receive a reference response signal from the satellite transponder; and a satellite performance monitoring apparatus that is installed indoors to generate the test signal and the reference signal, to generate a frequency response characteristic with respect to the satellite transponder using the test response signal, to compute a signal change amount occurring due to a weather condition using the reference signal and the reference response signal, and to apply the computed signal change amount to the frequency response characteristic.

Abstract: Provided are an apparatus and a method for monitoring a status of a satellite transponder using a statistical analysis of telemetry data, which may disclose a configuration to receive at least one of an input signal level and an output signal level with respect to a satellite transponder, to receive telemetry data with respect to the satellite transponder, and to statistically analyze the telemetry data based on the at least one of the input signal level and the output signal level.