Patent application number | Description | Published |
20110073008 | BIODEGRADABLE THERMOPLASTIC RESIN COMPOSITION COMPRISING CELLULOSE DERIVATIVES AND SURFACE-TREATED NATURAL FIBER - Provided is a biodegradable thermoplastic resin composition including a cellulose derivative and surface-treated natural fiber. More particularly, in preparation of the biodegradable thermoplastic resin composition including the cellulose derivative and the natural fiber, a surface of the natural fiber is treated with alkali and/or sized, thereby increasing a density of the natural fiber, and an interfacial adhesion between the cellulose derivative and the natural fiber to improve a mechanical strength of the biodegradable thermoplastic resin composition. Furthermore, as the cheap natural fiber is used as a reinforcer, the production cost can be reduced. | 03-31-2011 |
20130098768 | ELECTRODEPOSITION OF GRAPHENE LAYER FROM DOPED GRAPHITE - Provided is a method of forming a uniform graphene layer on a substrate (metal- or conductive-polymer-coated, ITO) by doping expanded graphite using various kinds of dopants (Lewis acid) to grant a positive charge thereto, dispersing the doped expanded graphite in an organic solvent using ultrasonic waves to obtain a solution in which the graphene is dispersed in the organic solvent, and electrically applying a negative voltage to the solution. | 04-25-2013 |
20130256155 | ELECTRODE FOR BIOSENSOR FOR LPS DETECTION, A METHOD FOR PRODUCING IT AND A METHOD FOR REGENERATING IT - A method of forming a biosensor electrode for lipopolysaccharide (LPS) detection includes providing a metal electrode, forming a metal electrode/3-mercaptopropionic acid (MPA) by depositing MPA on the metal electrode, forming a metal electrode/MPA/n-hydroxy-succinimide (NHS) by ester-bonding NHS and the MPA on the metal electrode/MPA, forming a metal electrode/MPA/nitrilotriacetic acid (NTA) by amide-bonding NTA-C | 10-03-2013 |
20130270124 | BIOSENSOR ELECTRODE FOR HER2 DETECTION, A METHOD FOR PRODUCING IT, A METHOD FOR REGENERATING IT - A method of forming a biosensor electrode for HER2 detection is provided. The method includes providing a metal electrode, forming a metal electrode/3-mercaptopropionic acid (MPA) by depositing MPA on the metal electrode, forming a metal electrode/MPA/n-hydroxy-succinimide (NHS) by ester-bonding between NHS and the MPA on the metal electrode/MPA, and forming a metal electrode/MPA/aptamer by amide-bonding between an HER2 specific aptamer having an amino terminus and the MPA of the metal electrode/MPA/NHS. | 10-17-2013 |
Patent application number | Description | Published |
20120169984 | DISPLAY SUBSTRATE AND METHOD OF MANUFACTURING THE SAME - A display substrate includes a gate line and a data line disposed on a base substrate. A switching element is connected to the gate line and the data line. A first pixel electrode is connected to the switching element, and a second pixel electrode is disposed on the first pixel electrode. The first pixel electrode includes first sub-electrodes that are separated by a first slit pattern. The second pixel electrode includes second sub-electrodes that are separated by a second slit pattern and extend across the first sub-electrodes. Therefore, a capacitance of a storage capacitor formed of overlapped portions of the first and second pixel electrodes is reduced, such that the charging rate of the storage capacitor is increased. | 07-05-2012 |
20140146277 | LIQUID CRYSTAL DISPLAY APPARATUS - A liquid crystal display apparatus includes a first substrate, a first electrode on the first substrate, a second electrode overlapping the first electrode and including a plurality of conductive patterns elongated in a first direction, and a light shielding layer overlapping an outermost conductive pattern of the second electrode. | 05-29-2014 |
20150085233 | LIQUID CRYSTAL DISPLAY - A liquid crystal display includes: a first substrate; a gate line and a data line disposed on the first substrate; a passivation layer disposed on the gate line and the data line; a first electrode and a second electrode disposed on the passivation layer; and a first insulating layer interposed between the first and second electrodes, where the first and second electrodes overlap each other via the first insulating layer, the second electrode includes a plurality of branch electrodes, and an end portion of the plurality of branch electrodes includes a first side portion and a second side portion extending parallel to the data line, and an oblique portion which connects the first side portion and the second side portion to each other and forms a first angle of less than 90 degrees with an extending line of the first side portion. | 03-26-2015 |
20150092149 | LIQUID CRYSTAL DISPLAY AND METHOD FOR MANUFACTURING THE SAME - A liquid crystal display includes: a substrate; and a common electrode disposed on the substrate; a pixel electrode disposed on the substrate; and an insulating layer disposed between the common electrode and the pixel electrode, in which at least one of the common electrode and the pixel electrode includes a plurality of slit electrodes defined by a plurality of cutouts defined therein, and a width of a slit electrode of the slit electrodes, a distance between the slit electrodes, and a thickness of the insulating layer satisfy the following in equation: 0.01x−0.2y+0.31≦L/P≦0.01x−0.2y+0.41, L denotes the width of the slit electrode, P denotes the distance between the slit electrodes, x denotes a value of the distance between the slit electrodes in micrometers, and y denotes a value of the thickness of the insulating layer in micrometers. | 04-02-2015 |
20150103300 | LIQUID CRYSTAL DISPLAY - A liquid crystal display includes: a first insulation substrate; a gate line and a data line formed on the first insulation substrate; a first electrode and a second electrode formed on the gate line and the data line and overlapping each other via an insulating layer interposed therebetween; a second insulation substrate facing the first insulation substrate; and a chiral dopant inserted between the first insulation substrate and the second insulation substrate. A content of the chiral dopant may be within about 1%, and liquid crystal molecules of a liquid crystal layer may be twisted with a pitch of about 10 μm to about 100 μm by the chiral dopant. | 04-16-2015 |
20150187811 | THIN FILM TRANSISTOR ARRAY PANEL - A thin film transistor array panel includes an insulation substrate; a gate line and a first electrode on the insulation substrate; a gate insulating layer on the gate line and the first electrode; a data line on the gate insulating layer; a passivation layer on the gate insulating layer and the data line; and a second electrode on the passivation layer. Relative permittivity (ε) of the gate insulating layer is more than about 15, and a thickness of the gate insulating layer is about 2000 angstroms. | 07-02-2015 |
20150205169 | LIQUID CRYSTAL DISPLAY - A liquid crystal display including: a first substrate; a second substrate facing the first substrate; a liquid crystal layer including a liquid crystal disposed between the first substrate and the second substrate; a thin film transistor disposed on the first substrate; a first electrode connected to the thin film transistor; a second electrode overlapping the first electrode with an insulating layer interposed therebetween; and a first alignment layer disposed on the first electrode. The first alignment layer includes a photo-alignment layer, and the liquid crystal has negative dielectric anisotropy. | 07-23-2015 |
20150234212 | LIQUID CRYSTAL DISPLAY PANELS AND LIQUID CRYSTAL DISPLAY DEVICES INCLUDING LIQUID CRYSTAL DISPLAY PANELS - A liquid crystal display panel includes a first substrate, a second substrate opposed to the first substrate, and a liquid crystal layer which is disposed between the first substrate and the second substrate, and includes liquid crystal molecules having a uniform dielectric anisotropy (Δε) by a simultaneous reduction of a vertical permittivity (ε⊥) of the liquid crystal molecules and a horizontal permittivity (ε∥) of the liquid crystal molecules. | 08-20-2015 |
Patent application number | Description | Published |
20110178807 | METHOD AND APPARATUS FOR DECODING AUDIO SIGNAL - Provided are a method and an apparatus for decoding an audio signal. A method for decoding an audio signal encoded by a layered sinusoidal pulse coding scheme using one or more sinusoidal pulses includes decoding the encoded audio signal, setting a smoothing frequency band of the decoded audio signal according to a layer structure of the layered sinusoidal pulse coding scheme, dividing the smoothing frequency band into one or more subbands, and smoothing the decoded audio signal on a subband-by-subband basis. Accordingly, a decoding operation time can be reduced and the quality of a synthesized signal can be improved by variably setting a frequency band to be smoothed, when decoding an audio signal encoded by a layered sinusoidal pulse coding scheme using one or more sinusoidal pulses. | 07-21-2011 |
20110280337 | APPARATUS AND METHOD FOR CODING SIGNAL IN A COMMUNICATION SYSTEM - Provided is an apparatus and method for encoding a voice and audio signal by expanding a modified discrete cosine transform (MDCT) based CODEC to a wideband and a super-wideband in a communication system. The apparatus for encoding a signal in a communication system, includes a converter configured to convert a time domain signal corresponding to a service to be provided to users to a frequency domain signal, a quantization and normalization unit configured to calculate and quantize gain of each subband in the converted frequency domain signal and normalize a frequency coefficient of the each subband, a search unit configured to search patch information of each subband in the converted frequency domain signal using the normalized frequency coefficient, and a packetizer configured to packetize the quantized gain and the searched patch information and encode gain information of each subband in the frequency domain signal. | 11-17-2011 |
20110301961 | METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL USING ADAPTIVE SINUSOIDAL CODING - A method and an apparatus for encoding and decoding audio signals using adaptive sinusoidal coding are provided. The audio signal encoding method includes the steps of dividing a synthesized audio signal into a plurality of sub-bands, calculating the energy of each sub-band, selecting a predetermined number of sub-bands having a relatively large amount of energy from the sub-bands, and performing sinusoidal coding with regard to the selected sub-bands. Application of sinusoidal coding based on consideration of the amount of energy of each sub-band of the synthesized signal improves the quality of the synthesized signal more efficiently. | 12-08-2011 |
20120095754 | METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL USING LAYERED SINUSOIDAL PULSE CODING - Provided are a method and an apparatus for encoding and decoding an audio signal. A method for encoding an audio signal includes receiving a transformed audio signal, dividing the transformed audio signal into a plurality of subbands, performing a first sinusoidal pulse coding operation on the subbands, determining a performance region of a second sinusoidal pulse coding operation among the subbands on the basis of coding information of the first sinusoidal pulse coding operation, and performing the second sinusoidal pulse coding operation on the determined performance region, wherein the first sinusoidal pulse coding operation is performed variably according to the coding information. Accordingly, it is possible to further improve the quality of a synthesized signal by considering the sinusoidal pulse coding of a lower layer when encoding or decoding an audio signal in an upper layer by a layered sinusoidal pulse coding scheme. | 04-19-2012 |
20130191134 | METHOD AND APPARATUS FOR DECODING AN AUDIO SIGNAL USING A SHAPING FUNCTION - The present invention relates to a method and apparatus for decoding an audio signal using a shaping function. According to one embodiment of the present invention, the method for decoding an audio signal comprises the following steps: taking frame data of the audio signal as an input; restoring a fixed codebook of the frame data using a random function; calculating a shaping function using an adaptive codebook of the frame data; shaping the restored fixed codebook using the shaping function; and synthesizing the audio signal from the frame data using the shaped fixed codebook and adaptive codebook. According to the present invention, the fixed codebook may be restored using the shaping function calculated on the basis of the adaptive codebook upon the occurrence of frame data loss, thus emphasizing a pitch period and reducing the influence of the fixed codebook between the pitch periods so as to reduce the degradation in the quality of the synthesized signal. | 07-25-2013 |
20130246068 | METHOD AND APPARATUS FOR DECODING AN AUDIO SIGNAL USING AN ADPATIVE CODEBOOK UPDATE - Disclosed are a method and apparatus for decoding a an audiospeech signal using an adaptive codebook update. The method for decoding speechan audio signal includes: receiving an N+1-th normal frame data that is a normal frame transmitted after an N-th frame that is a loss frame data loss; determining whether an adaptive codebook of a final subframe of the N-th frame is updated or notby using the N-th frame and the N+1-th frame; updating the adaptive codebook of the final subframe of the N-th frame by using athe pitch index of the N+1-the frame; and synthesizing an audio a speech signal of by using the N+1-th frame. | 09-19-2013 |
20140111601 | METHOD AND APPARATUS FOR WIDENING VIEWING ANGLE IN VIDEO CONFERENCING SYSTEM - A method and apparatus for widening a viewing angle in a video conferencing system are provided. The apparatus for widening a viewing angle in a video conferencing system includes: generating reference data from images of a video conference participant captured by a camera included in the video conferencing system; generating movement data based on the video conference participant's movements sensed by the camera; extracting a first control parameter by comparing the reference data with the movement data; transmitting the first control parameter to the other end of the conference; receiving a second control parameter generated at the other end of the conference; and controlling the camera by the second control parameter. | 04-24-2014 |
20140310007 | METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL USING ADAPTIVE SINUSOIDAL CODING - A method and an apparatus for encoding and decoding audio signals using adaptive sinusoidal coding are provided. The audio signal encoding method includes the steps of dividing a synthesized audio signal into a plurality of sub-bands, calculating the energy of each sub-band, selecting a predetermined number of sub-bands having a relatively large amount of energy from the sub-bands, and performing sinusoidal coding with regard to the selected sub-bands. Application of sinusoidal coding based on consideration of the amount of energy of each sub-band of the synthesized signal improves the quality of the synthesized signal more efficiently. | 10-16-2014 |
20140310009 | SIGNAL CODEC DEVICE AND METHOD IN COMMUNICATION SYSTEM - The present invention relates to a codec device and method for encoding/decoding voice and audio signals in a communication system, wherein: a fixed codebook excited signal is generated by using a pulse index for a voice signal; a first adaptive codebook excited signal is generated by using a pitch index for the voice signal; a fixed codebook signal is generated by multiplying the fixed codebook excited signal by a fixed codebook gain; a first adaptive codebook signal is generated by multiplying the first adaptive codebook excited signal by a first adaptive codebook gain; and a synthesized filter excited signal is generated by adding the fixed codebook signal and the first adaptive codebook signal. | 10-16-2014 |
20140324417 | METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL USING LAYERED SINUSOIDAL PULSE CODING - Provided are a method and an apparatus for encoding and decoding an audio signal. A method for encoding an audio signal includes receiving a transformed audio signal, dividing the transformed audio signal into a plurality of subbands, performing a first sinusoidal pulse coding operation on the subbands, determining a performance region of a second sinusoidal pulse coding operation among the subbands on the basis of coding information of the first sinusoidal pulse coding operation, and performing the second sinusoidal pulse coding operation on the determined performance region, wherein the first sinusoidal pulse coding operation is performed variably according to the coding information. Accordingly, it is possible to further improve the quality of a synthesized signal by considering the sinusoidal pulse coding of a lower layer when encoding or decoding an audio signal in an upper layer by a layered sinusoidal pulse coding scheme. | 10-30-2014 |
20150104039 | APPARATUS AND METHOD OF SUPPRESSING HOWLING - Disclosed herein is an apparatus of suppressing howling, including: a microphone sensing a voice of a user to generate a voice signal; a memory storing a command for suppressing howling of the voice signal; and a processor suppressing the howling of the voice signal depending on the command, wherein the command includes a command allowing the following steps to be performed: calculating a first ratio, which is a ratio between a power of the current frame signal for the howling candidate frequency and the short-section average, and a second ratio, which is a ratio between the long-section average and the short-section average; determining the howling candidate frequency to be a howling frequency of the current frame signal; and suppressing the howling of the voice signal depending on the howling frequency. | 04-16-2015 |
20150278989 | APPARATUS AND METHOD FOR CONTROLLING EYE-TO-EYE CONTACT FUNCTION - Disclosed are an apparatus and a method of controlling an eye-to-eye contact function, which provide a natural eye-to-eye contact by controlling an eye-to-eye contact function based on gaze information about a local participant and position information about a remote participant on a screen when providing the eye-to-eye contact function by using an image combination method and the like in a teleconference system, thereby improving absorption to a teleconference. | 10-01-2015 |