Abstract: Disclosed is an optimized battery charging method based on thermodynamic information of a battery. Thermodynamic information on a material structure of a battery, for instance, entropy of the battery is extracted. Boundary points at which state transitions of the battery material are determined using the thermodynamic information extracted. Phases of the battery are identified based on the boundary points determined. The most appropriate charging patterns adapted to each of the phases identified are determined. A charging algorithm for charging the battery can be constructed by combining the most appropriate charging patterns determined. This charging algorithm is applied to the charging of the battery.
Type:
Grant
Filed:
February 16, 2016
Date of Patent:
May 29, 2018
Assignee:
Korea Advanced Institute of Science and Technology
Abstract: A power amplifier include an amplifier including at least one field effect transistor (FET) that operates in an amplifying stage configured to amplify an input signal, and a body controller configured to control a bias voltage of a body terminal of the FET based on a power of the input signal. The body controller performs controlling so that the bias voltage of the body terminal is reduced in response to the power of the input signal being increased. Accordingly, such a power amplifier exhibits improved linearity.
Type:
Grant
Filed:
January 12, 2016
Date of Patent:
May 22, 2018
Assignees:
Samsung Electro-Mechanics Co., Ltd., Korea Advanced Institute of Science and Technology
Inventors:
Seung Hoon Kang, Gyu Suck Kim, Song Cheol Hong
Abstract: An operation method for a low density parity check (LDPC) decoder which includes performing an initial update operation to variable nodes by updating a codeword to the variable nodes, performing a decoding operation to the codeword based on an original parity check matrix, generating a modified parity check matrix by changing data of rows of the original parity check matrix corresponding to check nodes with dummy data, performing a node update operation based on the modified parity check matrix and performing a predetermined number of single iterations of the above processes until the decoding operation is successful.
Type:
Grant
Filed:
March 21, 2016
Date of Patent:
May 22, 2018
Assignees:
SK Hynix Inc., Korea Advanced Institute of Science and Technology
Abstract: An electromagnetic wave absorber includes a metal-coated fabric layer including a metal-coated fiber, and a supporting layer combined with the metal-coated fabric layer. The electromagnetic wave absorber may be easily manufactured and easily adjusted to change an absorbing ability, and may have superior mechanical properties.
Type:
Application
Filed:
November 10, 2017
Publication date:
May 17, 2018
Applicant:
Korea Advanced Institute of Science and Technology
Inventors:
Chun-Gon Kim, Young-Woo Nam, Jae-Hun Choi
Abstract: A method for operating a base station in a wireless communication system is provided. In the method, feedback is received from at least one terminal. When the base station configures terminal allocation information, a terminal that the base station is to service is determined based on information included in the feedback. A combination of base stations allowing the determined terminal to obtain maximal performance is determined with consideration of the information included in the feedback and a gain of cooperation between base stations.
Type:
Grant
Filed:
April 25, 2013
Date of Patent:
May 15, 2018
Assignees:
Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
Abstract: The present invention relates to a pharmaceutical composition for the regeneration of nerves comprising Vax protein as an active ingredient. Vax1 is secreted in the ventral hypothalamus (vHT) explant separated from a mouse. The secreted Vax1 combines with extracellular sugar group of heparan sulfate proteoglycans (HSPGs) existing in retinal ganglion cell (RGC) axon of the retinal explant co-cultured so as for the complex invades into axonplasm. Then, the Vax1 conjugated with the sugar group activates the local protein synthesis to accelerate the growth of retinal ganglion cell axon. In some embodiments, Vax protein or a nucleic acid encoding the protein, can be used in a pharmaceutical composition for the regeneration of nerves.
Type:
Grant
Filed:
May 19, 2016
Date of Patent:
May 15, 2018
Assignee:
Korea Advanced Institute of Science and Technology
Abstract: Disclosed is a learning method based on a stochastic-based deep learning model having a non-consecutive stochastic neural. The learning method includes configuring a non-consecutive stochastic feedforward neural network (NCSFNN) having non-consecutive stochastic neuron as a leaning model including a plurality of hidden layers; and allowing the NCSFNN to learn.
Type:
Application
Filed:
November 30, 2016
Publication date:
May 10, 2018
Applicant:
Korea Advanced Institute of Science and Technology
Abstract: A device for sensing a touch by measuring a variation in capacitance according to a contact of an object, and measuring a contact position of the object is provided. The device includes a touch screen panel comprising grid electrodes forming a plurality of electrode patterns, the grid electrodes serving as Tx antennas or Rx antennas, a Tx circuit unit connected with the grid electrode to apply an electric signal to the touch screen panel unit, an Rx circuit unit connected with the grid electrodes to sense variations in the capacitance in the plurality of electrode patterns, and a controller configured to control the touch screen panel unit, the Tx circuit unit, and the Rx circuit unit. The Rx circuit unit includes a first operational amplifier, a first feedback capacitor, and a second feedback capacitor. The first feedback capacitor and the second feedback capacitor are connected with the first operational amplifier.
Type:
Grant
Filed:
April 27, 2015
Date of Patent:
May 8, 2018
Assignees:
Samsung Electronics Co., Ltd, Korea Advanced Institute of Science and Technology
Inventors:
Sung-Soo Park, Chang-Byung Park, Gyu-Hyeong Cho
Abstract: A current mode hysteretic buck converter employing an auto-selectable frequency locking circuit is disclosed. The auto-selectable frequency locking type buck converter include a current mode hysteretic buck converter for converting an input DC voltage into a lower DC voltage, and a frequency locking unit for locking a switching frequency of the current mode hysteretic buck converter wherein the switching frequency is locked through adjusting a locking value of the switching frequency to be a predetermined value according to a size of a load. The buck converter is, based on the current mode hysteretic control, related to a circuit that locks the switching frequency of the converter to reduce the difficulty of designing electromagnetic interference (EMI) filters in the converter. In addition, the buck converter can improve the efficiency at light load by adjusting the switching frequency which is locked according to the load current.
Type:
Application
Filed:
August 30, 2017
Publication date:
May 3, 2018
Applicant:
Korea Advanced Institute of Science and Technology
Inventors:
Sang-Gug Lee, Jeong-Il Seo, Baek-Min Lim
Abstract: Provided is a video encoding apparatus, including a signal separator to separate a differential image block into a first domain and a second domain, based on a boundary line included in the differential image block, the differential image block indicating a difference between an original image and a prediction image with respect to the original image, a transform encoder to perform a transform encoding with respect to the first domain using a discrete cosine transform (DCT), a quantization unit to quantize an output of the transform encoding unit in a frequency domain, a space domain quantization unit to quantize the second domain in a space domain, and an entropy encoder to perform an entropy encoding using outputs of the quantization unit and the space domain quantization unit.
Type:
Grant
Filed:
July 26, 2016
Date of Patent:
May 1, 2018
Assignees:
Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, University-Industry Cooperation Group of Kyung Hee University, Korea Advanced Institute of Science and Technology
Inventors:
Sung-Chang Lim, Ha Hyun Lee, Hui Yong Kim, Se Yoon Jeong, Suk Hee Cho, Hae Chul Choi, Jong Ho Kim, Jin Ho Lee, Jin Soo Choi, Jin Woo Hong, Dong Hyu Sim, Seoung Jun Oh, Gwang Hoon Park, Mun Churl Kim, Neung Joo Hwang, Sea Nae Park
Abstract: Disclosed are a process for separating an electrode for membrane-electrode assemblies of fuel cells from the decal transfer film and an apparatus for separating the electrode. In particular, during the electrode separating process, only an electrode is separated from the decal transfer film on which the electrode is coated, without any damage, by a freezing method for freezing the specimen on the deionized water surface, and thus, wasting the expensive MEA is prevented. Thus, mechanical properties of the pristine electrode can be rapidly quantified in advance, and therefore, long term durability evaluation period during developing MEA having excellent durability is substantially reduced.
Type:
Grant
Filed:
August 5, 2015
Date of Patent:
May 1, 2018
Assignees:
Hyundai Motor Company, Korea Advanced Institute of Science and Technology
Inventors:
Bo Ki Hong, Byeong-Heon Jeong, Taek-Soo Kim, Jae-Han Kim, Sanwi Kim
Abstract: The present invention relates to a method for preparing a transparent electrode using a carbon nanotube (CNT) film, and more particularly, to a method for preparing a transparent electrode, the method comprising the steps of forming a CNT film on a desired substrate using a dispersed solution of CNT and then reducing/forming metal nanoparticles on the surface of the CNT film. According to the present invention, a transparent electrode in which gold nanoparticles are formed on the surface of high density CNT film having high purity, can be prepared. The inventive transparent electrode has high visible ray penetration and an excellent electrical conductivity by hyperfine metal particles uniformly formed on the surface thereof as well as a uniform increase in electrical conductivity over the whole CNT film, and thus it can be applied to various displays as well as image sensors, solar cells, touch panels, digital papers, electromagnetic shielding agents, static charge preventing agents and the like.
Type:
Grant
Filed:
January 22, 2007
Date of Patent:
May 1, 2018
Assignee:
Korea Advanced Institute of Science and Technology
Abstract: Disclosed are a method and apparatus for controlling a booster circuit such that maximum power is extracted from a power supply while power consumption for monitoring power generated by the power supply is reduced, and an apparatus for extracting maximum power by using the method and apparatus for controlling a booster circuit.
Type:
Grant
Filed:
March 9, 2015
Date of Patent:
May 1, 2018
Assignees:
Samsung Electronics Co., Ltd, Korea Advanced Institute of Science and Technology
Abstract: A system for controlling exposure of a multi-view camera is disclosed. The system includes a plurality of cameras having different views, a single image-based camera parameter calculator calculating single image-based camera parameters for each of the plurality of cameras; an image intensity ratio calculator calculating an image intensity ratio corresponding to an image intensity difference in an overlapped region between image data obtained from the plurality of cameras; and a multi-image-based camera parameter calculator calculating multi-image-based camera parameters for correcting intensity differences between images of the plurality of cameras on the basis of the single image-based camera parameters and the image intensity ratio.
Type:
Application
Filed:
December 1, 2016
Publication date:
April 26, 2018
Applicants:
HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, Korea Advanced Institute of Science and Technology
Inventors:
Jin Wook CHOI, In Wook SHIM, Tae Hyun OH, In So KWEON
Abstract: Disclosed herein are a multifunctional optical element and method using multiple light scattering. An optical control method using multiple light scattering may include the steps of splitting coherent light into a signal beam and a reference beam, controlling the wavefront of the signal beam, forming an interference pattern by making the signal beam having the controlled wavefront and the reference beam incident on photorefractive materials, recording the interference pattern on the photorefractive materials, reconstructing the signal beam having the controlled wavefront by the interference pattern by radiating the reference beam to the photorefractive materials on which the interference pattern has been recorded again, and controlling the properties of light passing through complex media based on multiple light scattering generated by the complex media as the reconstructed signal beam is incident on the complex media.
Type:
Application
Filed:
October 18, 2017
Publication date:
April 19, 2018
Applicant:
Korea Advanced Institute of Science and Technology
Abstract: A carbazole-based graft copolymer capable of controlling a self-assembled structure and a method of synthesizing the same are provided. Specifically, the copolymer is capable of controlling a self-assembled structure which can control the morphology of a polymer structure and the size of pores by controlling the molecular weights of polylactic acid (PLA) functioning as a coil and of a carbazole copolymer to prepare a poly(carbazole)-coil graft copolymer of Formula 1 below and the method of synthesizing the same is provided. In Formula 1, X represents 0.05 to 0.1, m represents an integer of 7 to 8, and n represents an integer of 56 to 84.
Type:
Grant
Filed:
December 13, 2016
Date of Patent:
April 17, 2018
Assignees:
Hyundai Motor Company, Korea Advanced Institute of Science and Technology
Inventors:
You Jung Song, Ju Hee Lee, Won Jung Kim, Bum Joon Kim, Young Kwon Kim, Hyun Jeong Kim
Abstract: An MRI apparatus performs an MRI while moving a patient table and includes a main magnet configured to generate a static magnetic field in a bore; a gradient coil assembly configured to apply a gradient signal to the static magnetic field to generate a magnetic field gradient; an RF coil assembly configured to apply an RF excitation signal and an RF refocusing signal; and a controller configured to control the RF refocusing signal so that a slice to which the RF refocusing signal is to be applied conforms to the slice to which the RF excitation signal has been applied.
Type:
Grant
Filed:
October 2, 2014
Date of Patent:
April 17, 2018
Assignees:
SAMSUNG ELECTRONICS CO., LTD., Korea Advanced Institute Of Science and Technology
Abstract: A carbazole-based graft copolymer capable of controlling a self-assembled structure and a method of synthesizing the same are provided. Specifically, the copolymer is capable of controlling a self-assembled structure which can control the morphology of a polymer structure and the size of pores by controlling the molecular weights of polylactic acid (PLA) functioning as a coil and of a carbazole copolymer to prepare a poly(carbazole)-coil graft copolymer of Formula 1 below and the method of synthesizing the same is provided. In Formula 1, X represents 0.05 to 0.1, m represents an integer of 7 to 8, and n represents an integer of 56 to 84.
Type:
Application
Filed:
December 13, 2016
Publication date:
April 12, 2018
Applicants:
Hyundai Motor Company, Korea Advanced Institute of Science and Technology
Inventors:
You Jung SONG, Ju Hee LEE, Won Jung KIM, Bum Joon KIM, Young Kwon KIM, Hyun Jeong KIM
Abstract: Provided is a method for increasing a driving current of a junctionless transistor that includes: a substrate; a source region and a drain region which are formed on the substrate and are doped with the same type of dopant; a nanowire channel region which connects the source region and the drain source and is doped with the same type dopant as that of the source region and the drain region; a gate insulation layer which is formed to surround the nanowire channel region; and a gate electrode which is formed on the gate insulation layer and is formed to surround the nanowire channel region. An amount of current flowing through the nanowire channel region is increased by joule heat generated by applying a voltage to the source region and the drain region.
Type:
Application
Filed:
February 7, 2017
Publication date:
April 12, 2018
Applicant:
Korea Advanced Institute of Science and Technology
Inventors:
Yang-Kyu Choi, Jun-Young Park, Chang-Hoon Jeon
Abstract: An optically trapped atom transfer tweezer may be provided that includes: an optical modulator which modulates incident light and generates a first hologram; a first lens which images the first hologram on an intermediate image plane and generates a first holographic image having any potential shape; a second lens which re-images the first holographic image on an entrance pupil of a third lens; the third lens which re-images a second hologram generated by the re-imaging of the second lens on a plane where an optically trapped atom array exists; a photographing device which captures optically trapped cold atoms from a second holographic image generated on the plane where an optically trapped atom array exists; and a controller which controls the optical modulator to adjust the second holographic image on the basis of the optically trapped atom image captured by the photographing device. As a result of this, the optically trapped atom array can be easily transferred to any position.
Type:
Application
Filed:
April 7, 2017
Publication date:
April 12, 2018
Applicant:
Korea Advanced Institute of Science And Technology