Abstract: A method of transmitting an electronic attack signal includes obtaining channel information about each of objects to be attacked, generating a beamforming matrix, based on the channel information, determining respective intensities of electronic attack signals to be respectively transmitted to the objects, based on the channel information and the beamforming matrix, and transmitting the electronic attack signals of the intensities respectively determined for the objects to the objects, respectively.

Abstract: The image analysis method may comprise the steps of: measuring a distance between a subject and an image analysis apparatus; outputting an image obtained by photographing the subject; selecting at least two feature points in the image of the photographed subject on the basis of information on the output feature points; calculating the relative size of the pre-stored original image of the subject on the basis of the measured distance; extracting feature points in the pre-stored original image of the subject, which correspond to the at least two selected feature points, on the basis of the calculated relative size; and comparing the image of the photographed subject with the original image on the basis of the selected feature points and the extracted feature points.

Abstract: A smart phone having a digital radio function includes a reception portion to which an analog voice signal is input, a first amplification portion to amplify the analog voice signal input through the reception portion, an A/D converter to convert the amplified analog voice signal into a digital voice signal, a control portion to receive and output the digital voice signal and to output a digital voice signal received and input through an antenna, an RF transceiver to control inputting the signal received through the antenna to the control portion and to transmit the signal output from the control portion through the antenna, a D/A converter to convert the digital voice signal into an analog voice signal, a second amplification portion to amplify the analog voice signal, and a voice output portion to externally transmit the analog voice signal output from the second amplification portion.

Abstract: A group communication system for managing employees according to the present invention is characterized by including: a first two-way radio carried by employees; a second two-way radio carried by managers who manage the employees; and a third two-way radio carried by a supervisor who supervises the managers, wherein each of the first to third two-way radios is provided with a first PTT button and a second PTT button, transmits a voice packet including at least one unique code set to correspond to the first PTT button in a state in which the first PTT button is pressed, transmits a voice packet including a unique code set to correspond to the second PTT button in a state in which the second PTT button is pressed, and upon receiving a voice packet including at least one unique code set to correspond to a receiving group, processes and outputs the received voice packet.

Abstract: A group communication system for managing employees according to the present invention is characterized by including: a first two-way radio carried by employees; a second two-way radio carried by managers who manage the employees; and a third two-way radio carried by a supervisor who supervises the managers, wherein each of the first to third two-way radios is provided with a first PTT button and a second PTT button, transmits a voice packet including at least one unique code set to correspond to the first PTT button in a state in which the first PTT button is pressed, transmits a voice packet including a unique code set to correspond to the second PTT button in a state in which the second PTT button is pressed, and upon receiving a voice packet including at least one unique code set to correspond to a receiving group, processes and outputs the received voice packet.

Abstract: A flight information storage system for an airplane according to the present invention may include: one or more of a video acquiring device mounted on the airplane; a recording device for recording video acquired through the video acquiring device(s) during a flight of the airplane; and a travel storage device which simultaneously stores the video data recorded by the recording device. Here, the travel storage device may be a USB cartridge, and the video acquiring device may be one or both of a digital camera and a radar device. The digital camera may include a first digital camera that is installed in front of the cockpit of the airplane to capture an image to the front of the airplane during flight, and two or more second digital cameras installed behind the cockpit of the airplane to capture an image of the instrument panel of the airplane and the area surrounding the instrument panel.

Abstract: A smart watch according to the present invention comprises: a reception unit to which an analog speech signal is inputted; a first amplification unit for amplifying the analog speech signal; an A/D converter for converting the amplified analog speech signal into a digital speech signal; a control unit for receiving and outputting the digital speech signal outputted from the A/D converter and outputting a digital speech signal received and inputted through an antenna; an RF transceiver for controlling signals such that the signal received through the antenna is inputted to the control unit, and the signal outputted from the control unit is transmitted through the antenna; a D/A converter for converting the digital speech signal into an analog speech signal; a second amplification unit for amplifying the analog speech signal; and a speech output unit for outputting the analog speech signal outputted from the second amplification unit.

Abstract: A gas diffusion layer for a metal-air battery may include a plurality of carbon nanotube thin films that are arranged to be stacked, and the carbon nanotube thin films may include a plurality of first carbon nanotubes arranged in a predetermined direction. The gas diffusion layer for the metal-air battery may include a plurality of carbon nanotube thin films in which a plurality of carbon nanotubes are arranged such that they cross each other by a floating catalyst chemical vapor deposition (“FCCVD”) method.

Abstract: A smart phone having a digital radio function includes a reception portion to which an analog voice signal is input, a first amplification portion to amplify the analog voice signal input through the reception portion, an A/D converter to convert the amplified analog voice signal into a digital voice signal, a control portion to receive and output the digital voice signal and to output a digital voice signal received and input through an antenna, an RF transceiver to control inputting the signal received through the antenna to the control portion and to transmit the signal output from the control portion through the antenna, a D/A converter to convert the digital voice signal into an analog voice signal, a second amplification portion to amplify the analog voice signal, and a voice output portion to externally transmit the analog voice signal output from the second amplification portion.

Abstract: A radio control method for a vehicle and a system for the same are disclosed. The method take advantage of radio data system (RDS) data in a radio broadcast system prevents unexpected initialization of a preset channel during utilization of a preset function. The radio control method for a vehicle includes receiving information about radio channel selection achieved by a preset function, and when the selected radio channel does not include radio data system (RDS) information, updating a preset slot in a manner that a new radio channel including the RDS information is designated to the preset slot.

Abstract: An apparatus and a method for controlling a vehicle steering system, which are capable of improving a sense of unity between driver's driving input and vehicle motion and the stability of the vehicle by estimating a side slip angle and performing return control, may include an assist torque determination module for determining assist torque for steering assist, a return control module for determining steering return torque for returning the steering wheel to a neutral position, a side slip angle estimation module for estimating a side slip angle, a side slip control module for determining a return control gain value in a response to the estimated side slip angle, a correction unit of correcting the determined steering return torque in a response to the return control gain value, and a torque compensation unit of determining final assist torque by compensating the determined assist torque with the corrected steering return torque.

Abstract: Disclosed is a touch screen display device. The touch screen display device includes a first driver displaying an image on a first area of a display panel during a first display period and displaying an image on a second area of the display panel during a second display period and a second driver applying a touch driving signal to a third area of the display panel during a first touch period. A length of the first display period and a length of the second display period are differently set in LHB driving. Accordingly, audible noise is minimized, and touch latency is fast.

Abstract: A power supply apparatus for an X-ray imaging system. A capacitor unit including a plurality of capacitor cells is connected in series to a single cell battery, such that the capacitor unit is charged using the single cell battery. Only when respective capacitor cells of the capacitor unit are charged, respective balance circuits corresponding to the respective capacitor cells are controlled to be turned on. When the balancing of the respective capacitor cells is completed, the balance circuits are opened. Accordingly, the power consumption of the capacitor cells is minimized.

Abstract: A gas diffusion layer for a metal-air battery may include a plurality of carbon nanotube thin films that are arranged to be stacked, and the carbon nanotube thin films may include a plurality of first carbon nanotubes arranged in a predetermined direction. The gas diffusion layer for the metal-air battery may include a plurality of carbon nanotube thin films in which a plurality of carbon nanotubes are arranged such that they cross each other by a floating catalyst chemical vapor deposition (“FCCVD”) method.

Abstract: A radio control method for a vehicle and a system for the same are disclosed. The method take advantage of radio data system (RDS) data in a radio broadcast system prevents unexpected initialization of a preset channel during utilization of a preset function. The radio control method for a vehicle includes receiving information about radio channel selection achieved by a preset function, and when the selected radio channel does not include radio data system (RDS) information, updating a preset slot in a manner that a new radio channel including the RDS information is designated to the preset slot.

Abstract: Discussed is a wearable wireless communication device that can set a communication group with other wireless communication devices within a limited range by converting and sending out communication group setting information into a dual tone multi-frequency (DTMF) signal or by transmitting communication group setting information including a certain received signal strength indicator (RSSI) reference value and a communication group setting method using the same.

Abstract: The present invention relates to an intrusion detection system.

Abstract: Embodiments of the present invention relate to a wireless emergency bell and a method for controlling a wireless emergency bell installed in a school and a school zone, the method comprising the steps of: receiving an input signal generated by pressing a provided button by a reporter when an emergency situation occurs; generating an emergency bell signal, repeatedly transmitting the generated emergency bell signal to at least one pager and a receiver during a predetermined configuration time, and outputting a prestored alarm sound to the outside through a provided speaker; generating an emergency bell voice signal and transmitting the generated emergency bell voice signal to the at least one pager and the receiver; generating an emergency bell voice transmission completion signal indicating that the emergency bell voice signal has been completely transmitted, and transmitting the generated emergency bell voice transmission completion signal to the at least one pager and the receiver; converting an operation o

Abstract: Discussed is a wearable wireless communication device that can set a communication group with other wireless communication devices within a limited range by converting and sending out communication group setting information into a dual tone multi-frequency (DTMF) signal or by transmitting communication group setting information including a certain received signal strength indicator (RSSI) reference value and a communication group setting method using the same.

Abstract: Disclosed is a touch screen display device. The touch screen display device includes a first driver displaying an image on a first area of a display panel during a first display period and displaying an image on a second area of the display panel during a second display period and a second driver applying a touch driving signal to a third area of the display panel during a first touch period. A length of the first display period and a length of the second display period are differently set in LHB driving. Accordingly, audible noise is minimized, and touch latency is fast.