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Hyun Wook Park

Hyun Wook Park, Gyeonggi-Do KR

Patent application numberDescriptionPublished
20090097466METHOD FOR TRANSMITTING UPLINK SIGNALS - A method for transmitting uplink signals, which include ACK/NACK signals, control signals other than the ACK/NACK signals, and data signals, is disclosed. The method comprises serially multiplexing the control signals and the data signals; sequentially mapping the multiplexed signals within a specific resource region in accordance with a time-first mapping method, the specific resource region including a plurality of symbols and a plurality of virtual subcarriers; and arranging the ACK/NACK signals at both symbols near symbols to which a reference signal of the plurality of symbols is transmitted. Thus, the uplink signals can be transmitted to improve receiving reliability of signals having high priority.04-16-2009
20100284363FREQUENCY HOPPING PATTERN AND METHOD FOR TRANSMITTING UPLINK SIGNALS USING THE SAME - A frequency hopping pattern and a method for transmitting uplink signals using the same are disclosed. A frequency hopping pattern is defined by combination of subband hopping, which is performed over one or more subbands divided from a system band for transmission of the uplink signals, and mirroring where resource blocks within one subband are arranged reversely based on the center of the subband. Sequences as to whether to apply minoring and subband hopping amount are cell-specific random numbers, and are generated independently or in combination.11-11-2010

Hyun Wook Park, Daejun-Si KR

Patent application numberDescriptionPublished
20090060034Method and apparatus for scalably encoding and decoding video signal - In one embodiment, the method includes predicting at least a portion of a current image in a current layer based on at least a residual coded portion of a base image in a base layer, a reference image, shift information for samples in the predicted current image, and offset information indicating a position offset between at least one boundary pixel of the reference image and at least one boundary pixel of the current image. The residual coded portion represents difference pixel data.03-05-2009
20090185627METHOD FOR SCALABLY ENCODING AND DECODING VIDEO SIGNAL - In one embodiment, decoding of a video signal includes predicting at least a portion of a current image in a current layer based on at least a portion of a base image in a base layer and shift information for samples in the predicted current image.07-23-2009
20090196354METHOD FOR SCALABLY ENCODING AND DECODING VIDEO SIGNAL - In one embodiment, decoding of a video signal includes predicting at least a portion of a current image in a current layer based on at least a portion of a base image in a base layer and shift information for samples in the predicted current image.08-06-2009
20090213926Method for Up-Sampling/Down-Sampling Data of a Video Block - The present invention relates to a method for up-sampling/down-sampling data of a video block in a scalable video data encoding/decoding. The up-sampling method according to the present invention obtains a 2N×2N enlarged block by computing a converting matrix to data of a given N×N video block. The converting block has matrix elements leading data of the video block to resultant data that could be obtained by a converting process that applies DCT to the data, pads some zeros to coefficients, and applies IDCT to the coefficients including the padded zeros. The down-sampling method according to the present invention obtains an N×N reduced block by computing a converting block to a given 2N×2N video block. The converting block for reducing has matrix elements leading data of the 2N×2N video block to resultant data that could be obtained by a converting process that applies DCT to the data, removes some coefficients from transformed coefficients, and applies IDCT to the remaining coefficients.08-27-2009
20100272188Method for scalably encoding and decoding video signal - In one embodiment, decoding of a video signal includes predicting at least a portion of a current image in a current layer based on at least a residual coded portion of a base image in a base layer and shift information for samples in the predicted current image.10-28-2010

Patent applications by Hyun Wook Park, Daejun-Si KR

Hyun Wook Park, Gyeongki-Do KR

Patent application numberDescriptionPublished
20100226326Method for Transmitting Uplink Control Signal - A method for transmitting an uplink control signal includes receiving scheduling information for transmission of the uplink control signal, and transmitting the uplink control signal according to the scheduling information. Various control signals can be transmitted without interference with other control signals while maintaining a single carrier property.09-09-2010

Hyun Wook Park, Daejeon KR

Patent application numberDescriptionPublished
20080234596Brain Wave Measuring Method, Apparatus And Computer Readable Recording Medium Implemented With Program For Executing The Method - A method for measuring a brain wave comprises extracting positive and negative peaks from an electrocardiogram (EKG) signal reflecting heartbeat information, and positive peaks from an electroencephalogram (EEG) signal reflecting heartbeat-caused noise information and brain wave information. The positive peaks of the EEG signal are classified into a first peak group and a second peak group based on the positive peaks of the EKG signal. The first peak group is affected more greatly by the heartbeat than by the brain wave, and the second peak group is affected more greatly by the brain wave than by the heartbeat. Noise of the first and second peak groups is removed from the EEG signal.09-25-2008
20080312525METHOD FOR GENERATING HIGH RESOLUTION MRI IMAGE AND RECORDING MEDIUM THEREOF - The present invention relates to a high-resolution magnetic resonance imaging (MRI) image generating method using a new MRI image method called a generalized series parallel imaging technique, and a recording medium thereof. In the high-resolution MRI image generating method using the generalized series parallel imaging technique according to the present invention, selecting only a predetermined low frequency band of all frequency bands, and sampling the predetermined low frequency band of all frequency bands at a lower rate than a Nyquist rate to acquire magnetic resonance data.12-18-2008
20100085049METHOD OF OBTAINING A MAGNETIC RESONANCE IMAGE IN WHICH THE STREAK ARTIFACTS ARE CORRECTED USING NON-LINEAR PHASE CORRECTION - A non-linear phase correction method is provided. For the non-linear phase correction method, image information is acquired by gradient echo echo planar imaging (EPI). Reference information is acquired by spin echo EPI. The image information is corrected based on the reference information.04-08-2010
20100177819METHOD AND AN APPARATUS FOR PROCESSING A VIDEO SIGNAL - An apparatus for processing a video signal and method thereof are disclosed. The present invention includes receiving the video signal, extracting discrete cosine transform information from the video signal, and performing inverse discrete cosine transform using the discrete cosine transform information, wherein the discrete cosine transform information indicates a rearrangement mode of blocks in the discrete cosine transform. Accordingly, a video signal processing method of the present invention, improves efficiency of discrete cosine transform in a manner of rearranging blocks of video signal by considering a prediction mode prior to performing discrete cosine transform. The present invention enhances coding efficiency by using a row or column shifted matrix and shift information including information relevant to the row or column shifted matrix and by directly performing RRU (reduced resolution update) scheme on a discrete cosine transform/inverse discrete cosine transform domain.07-15-2010
20100220790 METHOD AND AN APPARATUS FOR PROCESSING A VIDEO SIGNAL - An apparatus for processing a video signal and method thereof are disclosed. The present invention includes receiving prediction mode information, interpolating information and a residual of a current block, reconstructing an interpolating pixel using the interpolating information and a neighbor block, and reconstructing the current block using the interpolating pixel, the prediction mode information and the residual, wherein the interpolating information is generated based on a location of the current block. According to an apparatus and method for processing a video signal, high reconstruction rate can be obtained by improving the related art method having limited intra prediction modes available for a current block located on a boundary area of a picture in encoding in a manner of reconstructing and using an interpolating pixel based on interpolating information.09-02-2010
20110110429Fast Motion Estimation Methods Using Multiple Reference Frames - Motion estimation methods using multiple reference frames are provided. In the methods, motion estimation is performed on a current block using a single reference frame selected from the multiple reference frames or using the multiple reference frames in order of probability that each reference frame is an optimal reference frame for the current block. Accordingly, faster motion estimation is performed.05-12-2011

Patent applications by Hyun Wook Park, Daejeon KR

Hyun Wook Park, Daejeon-Si KR

Patent application numberDescriptionPublished
20100053451Apparatus and method for frame interpolation based on accurate motion estimation - An apparatus and a method for frame interpolation based on precision motion estimation are provided. The apparatus for frame interpolation may generate an interpolation frame to restore images based on a motion vector which is determined after a motion vector is determined based on a rotation element in addition to forward motion and backward motion between frames.03-04-2010

Hyun Wook Park, Anyang-Si KR

Patent application numberDescriptionPublished
20090125774METHOD OF DATA TRANSMISSION USING HARQ - A method of transmitting data from a user terminal to a base station using a hybrid automatic repeat request (HARQ) scheme with a plurality of redundancy versions of said data, each of the redundancy versions (RV) indicating a transmission start position of a data block in a circular buffer is disclosed. For each retransmission, the redundancy version to be used by considering the previously used redundancy version and a predetermined sequence is determined. Within one sequence, at least two redundancy versions following each other have non consecutive start positions.05-14-2009