Abstract: Since a surface of the artificial graphite of the negative electrode active material according to the present invention is modified with nitrogen, dispersibility in an aqueous system may be improved and accordingly, affinity between a binder and the negative electrode active material is increased to increase the adhesive strength of an electrode. Also, since the surface of the artificial graphite is modified with nitrogen, there is an effect of maintaining a high battery capacity. Furthermore, in the method of preparing a negative electrode active material according to the present invention, since an oxygen-containing functional group is connected to the artificial graphite by a mild oxidation process, the nitrogen may be easily attached to the artificial graphite so that the negative electrode active material becomes an electrical conductor by maintaining original crystallinity while having a hydrophilic property. Thus, excellent battery efficiency may be achieved.

Abstract: The present invention relates to a negative electrode active material and a method of preparing the same, the negative electrode active material which includes a core including artificial graphite and hard carbon, and a shell surrounding the core and including natural graphite, wherein the shell is shell is formed to cover a surface of the core by stacking and heading the natural graphite. Since the natural graphite completely surrounds the artificial graphite and the hard carbon, the hard carbon having a low initial efficiency and high electrolyte solution consumption is not exposed to the outside, and thus, high initial efficiency and life characteristics may be obtained. Also, since the natural graphite, the artificial graphite, and the hard carbon are all used, diffusion resistance of lithium ions is lower than that of a case where the natural graphite is only used, and thus, high output characteristics may be achieved.

Abstract: A method and charging system for effectively performing measurement of a pulse width modulation (PWM) signal for selection of a charging mode between an electric vehicle and a charger are disclosed. The method for determining a charging mode of an electric vehicle includes measuring a duty ratio of a control signal applied to a communication line of a charger connector by a first controller for controlling slow charging and a second controller for controlling quick charging, transmitting measurement results obtained from each of the first controller and the second controller to a third controller in charge of a battery, determining a final duty ratio using the measurement results by the third controller, transmitting the determined final duty ratio to the first controller and the second controller, and starting charging in a mode corresponding to the final duty ratio.

Abstract: Provided are a negative electrode active material and a method of preparing the same, and particularly, the present invention relates to a negative electrode active material including a core including natural graphite, and a shell surrounding the core and including a roughened amorphous carbon layer. Since the negative electrode active material according to the present invention has a roughened surface, adhesion may be improved by using a less amount of a binder due to an anchoring effect in which curved surfaces of active material particles in contact with each other are anchored. Thus, an increase in resistance due to the use of an excessive amount of the binder may be prevented while achieving high loading in a negative electrode. Also, since a specific surface area is increased due to the roughened surface, access of lithium ions becomes easy, and thus, high output of a battery may be obtained.

Abstract: Provided are wireless charging equipment, a terminal, a wireless charging system comprising the same, a control method thereof, and a non-transitory computer readable storage medium having computer program recorded thereon. That is, the present invention can easily implement the present invention without a separate BLE beacon device by using the wireless charging infrastructure and improve operation efficiency of the entire wireless charging system by transmitting additional information (alternatively, specific information) to the peripheral BLE terminal for a time where the charging signal is not transmitted in the corresponding BLE by using the BLE of the resonance scheme wireless charging equipment.

Abstract: There are provided a system and a method for controlling power of a high speed vehicle. The system for controlling power of a vehicle includes: a latch relay configured to supply power to a vehicle load or to block power to the vehicle; a communication part configured to output a driving signal when a wakeup signal is received; a pulse generator configured to output a one shot pulse that turns on the latch relay when the driving signal is applied; and a processor configured to control a driving of the latch relay turned on by the one shot pulse when being initialized.

Abstract: Disclosed is a digital signage device and a method for operating the same, the digital signage device enabling a terminal, which has approached a display panel, to acquire tagging information, which has been updated with regard to each display object inside contents displayed on the display panel.

Abstract: An optimized structure for an integrated catalytic muffler is provided to purify exhaust gas from an engine and reduce noise when the exhaust gas flows to the rear of a vehicle. The structure includes a case having an inlet and an outlet, and an SCR catalytic unit that is mounted to the case. Particularly, a portion of the SCR catalytic unit is inserted into the case and the remaining portion is exposed out of the case. The SCR catalytic unit is coupled to the case by bolting or clamping. Accordingly, the production cost and weight are reduced, and maintenance and repair are facilitated.

Abstract: Provided is a method of a device transmitting integrity check data. The method includes establishing a voice communication channel with at least one other device, determining a size of a packet to be transmitted through the established voice communication channel based on a bandwidth of the communication channel, detecting a user's voice from an input signal, selectively inserting integrity check data for checking the integrity of data to be transmitted into the packet based on a result of the detection, and transmitting the packet to the at least one other device.

Abstract: Provided are wireless charging equipment, a terminal, a wireless charging system comprising the same, a control method thereof, and a non-transitory computer readable storage medium having computer program recorded thereon. That is, the present invention can conveniently share contents on a cloud, enlarge an application range of the wireless charging system, and improve convenience of usage by transmitting sharing link information and identification information of one or more second terminals to the wireless charging equipment in a first terminal, verifying the access to a corresponding second terminal in the wireless charging equipment to provide the sharing link information to the corresponding second terminal, and storing the sharing link information in the second terminal or downloading contents corresponding to the sharing link information, in the case where the first terminal acquiring the sharing link information provided from the service providing device is charged in the wireless charging equipment.

Abstract: A method of encoding a multi-channel 3-dimensional (3D) audio signal mixed with a multi-channel 3D object signal is provided. The method includes: obtaining a location parameter indicating a virtual location of the multi-channel 3D object signal on a multi-channel speaker layout based on a gain value of the multi-channel 3D object signal for each channel; and encoding the multi-channel 3D audio signal and the location parameter.

Abstract: An apparatus for managing power of a vehicle and a method of controlling the same, for effectively shutting off dark current are disclosed. The method includes cutting off a first load part when a preset first time condition is satisfied, additionally cutting off a second load part when at least one of a preset second time condition or a first battery state condition is satisfied, and additionally cutting off a third load part to interrupt all loads when at least one of a preset third time condition, a second battery state condition, or a dark current state condition is satisfied.

Abstract: A method of encoding a multi-channel 3-dimensional (3D) audio signal mixed with a multi-channel 3D object signal is provided. The method includes: obtaining a location parameter indicating a virtual location of the multi-channel 3D object signal on a multi-channel speaker layout based on a gain value of the multi-channel 3D object signal for each channel; and encoding the multi-channel 3D audio signal and the location parameter.

Abstract: The present invention relates to a negative electrode active material having a double coating layer of a first coating layer and a second coating layer, which has an excellent output property, effectively suppresses a side reaction with an electrolyte liquid, particularly a PC-containing electrolyte liquid, and has excellent electric conductivity, a method for manufacturing the same, a negative electrode including the same, and a lithium secondary battery including the negative electrode. The negative electrode active material according to the present invention is capable of effectively preventing a side reaction with an electrolyte liquid, particularly a PC-containing electrolyte liquid, and is capable of improving electric conductivity, and as a result, enhancing a rate determining property by reducing an OCV drop of a lithium secondary battery including the negative electrode active material, and enhancing a high rate property.

Abstract: Disclosed herein are a lane estimation apparatus and method. The lane estimation apparatus includes a camera unit which captures an image in front of a vehicle, a radar unit which senses a plurality of stationary objects in front of the vehicle, and a lane estimation unit which detects a lane through the image captured by the camera unit, generates an imaginary lane joining a plurality of stationary objects next to a road among the stationary objects sensed by the radar unit, determines whether the generated imaginary lane is valid based on a distance between the detected lane and the generated imaginary lane, generates, when the imaginary lane is valid according to the determined result, a final lane based on the detected lane and the imaginary lane, and recognizes the generated final lane as a driving lane of the vehicle.

Abstract: A connector converter for a vehicle includes a connection controller configured to control connection between the vehicle and a charger. A communication protocol converter is configured to perform message conversion between the vehicle and the charger. The communication protocol converter employs different communication protocols when the vehicle is chargeably connected to the charger under control of the connection controller. A connector communicator is configured to transmit a message output from the communication protocol converter to the vehicle or the charger.

Abstract: An optimized structure for an integrated catalytic muffler is provided to purify exhaust gas from an engine and reduce noise when the exhaust gas flows to the rear of a vehicle. The structure includes a case having an inlet and an outlet, and an SCR catalytic unit that is mounted to the case. Particularly, a portion of the SCR catalytic unit is inserted into the case and the remaining portion is exposed out of the case. The SCR catalytic unit is coupled to the case by bolting or clamping. Accordingly, the production cost and weight are reduced, and maintenance and repair are facilitated.

Abstract: Disclosed is an anode for a lithium secondary battery, including a carbon-based anode active material, a binder and a conductive polymer, wherein the conductive polymer is in fiber form. A lithium secondary battery including the anode is also provided. As the anode for a lithium secondary battery includes a conductive polymer in fiber form, poor conductivity, which is a problem with a carbon-based anode active material, can be overcome, and the anode can be easily manufactured.

Abstract: A semiconductor device bonded by an anisotropic conductive adhesive composition, the anisotropic conductive adhesive composition having a solid content ratio between a polymer binder system and a curing system of about 40:60 to about 60:40, and a coefficient of thermal expansion of about 150 ppm/° C. or less at about 100° C. or less.

Abstract: An apparatus and method for a sensor network, machine-to-machine (M2M) communication, machine type communication (MTC), and Internet of things (IoT) are disclosed. The disclosure may be applied to, for example, intelligent services related to the above technologies, in conjunction with smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail business, security, and safety related services. The method includes generating first image data by resizing original image data to a predetermined size, inserting watermark data into the first image data, and adding difference data corresponding to the difference between the original image data and the first image data to second image data that is image data in which the watermark data is inserted.