Patents by Inventor Je-Woo Kim

Je-Woo Kim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20140307563
    Abstract: Methods and apparatus for processing data received at a user equipment comprises determining a protocol data unit (PDU)-specific Layer 1 decoding metric of a Layer 1 decoded PDU. The methods and apparatus further comprises determining whether to perform a Layer 2 decoding of the Layer 1 decoded PDU based on the PDU-specific Layer 1 decoding metric.
    Type: Application
    Filed: January 27, 2014
    Publication date: October 16, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Sitaramanjaneyulu KANAMARLAPUDI, Prashant UDUPA SRIPATHI, Jeremy M. STEIN, Nitin KASTURI, Je Woo KIM, Messay AMERGA, Sagar B. SHAH, Venkata Srihari INAMPUDI, Ravi GOPALAN
  • Patent number: 8855183
    Abstract: A method of wireless communication with improved performance employs an equalizer receiver with multiple receive antennas. Equalizer taps for linear filters of the equalizer receiver are generated by determining a conditioned covariance matrix of a first data path and a second data path based on a first gain (g0) of this first data path and a second gain (g1) of the second data path. The equalizer taps of the first data path and the second data path are determined based on the conditioned covariance matrix. The first data path and the second data path are then equalized using the equalizer taps. An equalized signal is generated by combining the equalized first data path with the equalized second data path.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: October 7, 2014
    Assignee: Qualcomm Incorporated
    Inventors: Aditya Dua, Lei Xiao, Je Woo Kim, Feng Lu
  • Publication number: 20140286214
    Abstract: Aspects of the methods and apparatus relate to performing user equipment (UE) only discontinuous transmission (DTX) smart blanking. One aspect of the methods and apparatus include maintaining a list of voice configurations that would trigger user equipment (UE) discontinuous transmission (DTX). Further, the aspect includes receiving a current voice configuration for the UE from a network, and determining whether the current voice configuration of the UE received from the network falls within the list of voice configurations that would trigger UE DTX. Further, the aspect includes enabling uplink UE DTX at the UE when the current voice configuration of a UE falls within the list of voice configurations.
    Type: Application
    Filed: December 12, 2013
    Publication date: September 25, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Jimmy Chi-Wai Chui, Harish Venkatachari, Je Woo Kim, Nate Chizgi, Sharif Ahsanul Matin, Srivatsan Rajagopalan
  • Patent number: 8838460
    Abstract: Disclosed is an apparatus for playing and producing realistic object audio. The apparatus for playing realistic object audio includes: a deformatter unit individually separating scene description (SD) compression data and object audio compression data from inputted audio files; an SD decoding unit decoding the SD compression data to restore SD information; an object audio decoding unit decoding the object audio compression data to restore object audio signals which are respective audio signals of a plurality of objects; and an object audio effect unit adding an audio effect for each object to the object audio signals according to SD information for each object corresponding to the object audio signals among the SD information to produce a realistic object audio signal corresponding to each of the object audio signals.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: September 16, 2014
    Assignee: Korea Electronics Technology Institute
    Inventors: Byeong Ho Choi, Je Woo Kim, Charles Hyok Song, Choong Sang Cho
  • Patent number: 8804839
    Abstract: In a method for image prediction of a multi-view video codec, a disparity vector value of a current macroblock is obtained and a corresponding macroblock is searched through the obtained disparity vector value. An intra prediction coding direction value of the searched macroblock is determined as an intra prediction coding direction value of the current macroblock. The current macroblock is coded/decoded through the determined intra prediction coding direction value. The coding efficiency can be increased by reducing a coding amount by omitting a process of obtaining an unnecessary disparity value by using a different-view intra prediction coding direction as a current-view intra prediction coding direction. The coding efficiency can be increased by reducing a coding amount by differentially coding a similar disparity vector. The reliability can be increased through an accurate disparity using multiples of 8 rather than 16, in motion skip for sharing the format of a macroblock.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: August 12, 2014
    Assignee: Korea Electronics Technology Institute
    Inventors: Ji Ho Park, Byeong Ho Choi, Je Woo Kim, Yong Hwan Kim, Hwa Seon Shin, Yo Sung Ho
  • Patent number: 8731951
    Abstract: The present invention provides a new recursive FIR filter scheme which supports a variable order short-term predictor, and uses a pipeline stall based on the radix-2 algorithm and an autocorrelation processing time for reducing the complexity of MPEG-4 ALS hardware implementation.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: May 20, 2014
    Assignee: Korea Electronics Technology Institute
    Inventors: Byeong Ho Choi, Dong Sun Kim, Je Woo Kim, Choong Sang Cho, Seung Yerl Lee, Sang Seol Lee
  • Patent number: 8731109
    Abstract: A method and apparatus for channel estimation in wireless communications are provided. After an initial channel estimation and an estimation of the effective channel length (ECL) are performed, a weighting based on the ECL may be applied in an effort to remove noise from the initial channel estimate and provide an estimated channel with increased accuracy. Different weightings may apply for different channel lengths. A threshold may be used during the ECL estimation, and the threshold may be predetermined or calculated in an effort to adapt to different channel environments.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: May 20, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Je Woo Kim, Bok Tae Sim, Ju Won Park, Tae Ryun Chang, Jong Hyeon Park
  • Patent number: 8726138
    Abstract: A method and apparatus for decoding of tailbiting convolutional codes (TBCC) are disclosed. The proposed modified maximum-likelihood TBCC decoding technique preserves error correction performance of optimal maximum-likelihood based TBCC decoding, while the computational complexity is substantially decreased since a reduced number of decoding states has been evaluated. Compare to other sub-optimal TBCC decoding algorithms, modified maximum-likelihood TBCC decoding achieves improved packet error rate performance with similar computational complexity.
    Type: Grant
    Filed: October 13, 2008
    Date of Patent: May 13, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Ju Won Park, Brian Banister, Je Woo Kim, Jong Hyeon Park, Matthias Brehler, Remi Gurski, Tae Chang
  • Publication number: 20140126445
    Abstract: One or more aspects of the present disclosure aim to enable a reduced call drop rate and/or improved call performance in calls using 3GPP Release 99 Dedicated Physical Channel (DPCH) signaling, while reducing, or at least not causing a substantially large rise in power consumption at a wireless device, by utilizing selection diversity at a receiver. According to an aspect of the disclosure, a UE invokes a measurement period for detecting a downlink dedicated control channel (DCCH) based on a condition of a radio channel, during an initial portion of a transmission time interval (TTI). The UE samples one or more characteristics of a radio channel utilizing one or more of a plurality of receive chains. If the DCCH is detected during the measurement period, the UE selects one or more receive chains from among the plurality of receive chains in accordance with the one or more sampled characteristics. The UE receives a downlink transmission utilizing the selected one or more receive chains.
    Type: Application
    Filed: October 2, 2013
    Publication date: May 8, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Nate Chizgi, Prashant Udupa Sripathi, Atul Arvind Salvekar, Sharif Ahsanul Matin, Wei Zhang, Je Woo Kim, Shashank V. Maiya
  • Publication number: 20140118501
    Abstract: Disclosed is a calibration system for stereo cameras. The calibration system includes a rig control module configured to, when a camera calibration parameter is input, control an auto rig according to the camera calibration parameter to perform physical calibration for a camera, a stereo image calibration apparatus configured to calibrate a stereo image to acquire the camera calibration parameter, and output the acquired camera calibration parameter, and a camera control module configured to output the camera calibration parameter, which is input from the stereo image calibration apparatus, to the rig control module, or screen-output the camera calibration parameter. Therefore, physical calibration and image processing calibration for a camera are performed in association with each other.
    Type: Application
    Filed: August 1, 2011
    Publication date: May 1, 2014
    Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Je Woo Kim, Byeong Ho Choi, Dong Sun Kim, Hyok Song, Cheon Lee
  • Patent number: 8699804
    Abstract: A lossless image compression method for a high definition image is provided. The image compression method generates a minimum value of values produced by subtracting a current virtual pixel value from an average of neighbor pixels designated by a plurality of directions, as the prediction value of a current pixel. Thus, the image compression more efficient than the current JPEG-LS can be achieved.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: April 15, 2014
    Assignee: Korea Electronics Technology Institute
    Inventors: Ji Ho Park, Byeong Ho Choi, Je Woo Kim
  • Patent number: 8699645
    Abstract: The described aspects include a user equipment (UE) apparatus and corresponding method of equalizing samples of received signals in wireless communication. A plurality of samples of a signal received in wireless communication can be obtained, and on-time samples and late samples of the plurality of samples are independently equalized to respectively generate equalized on-time samples and equalized late samples. In addition, a preference factor can be applied to at least the equalized on-time samples to generate preferred equalized on-time samples, which are combined with the equalized late samples to generate a set of equalized samples for decoding.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: April 15, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Madihally J. Narasimha, Dineshkumar Karuppanna Gounder Ramasamy, Je Woo Kim
  • Patent number: 8675975
    Abstract: An image encoding method using color space estimation is provided. A method for encoding a second color space pixel corresponding to coordinates of a first color space pixel using color spaces, includes encoding a pixel of a first color space; calculating a color space estimation value of a current pixel of a second color space by referring to the encoded pixel of the first color space; and encoding a differential value of the calculated color space estimation value and the current pixel value. Thus, the image compression efficiency can be enhanced by using the information between the color spaces in the image encoding, and the lossless image compression can be accomplished by ruling out the similarity of the pixels.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: March 18, 2014
    Assignee: Korea Electronics Technology Institute
    Inventors: Ji Ho Park, Je Woo Kim, Byeng Ho Choi
  • Patent number: 8666004
    Abstract: Certain embodiments of the present disclosure provide a hybrid receiver diversity scheme that involves combining received signals in accordance with a combination of multiple receive diversity schemes. Certain embodiments of the present disclosure provide a hybrid transmit diversity scheme that involves transmitting diversity signals to a receiver according to a transmit diversity scheme selected based on signal quality measurements received from the receiver.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: March 4, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Je Woo Kim, Jong Hyeon Park, Tae Ryun Chang, Ju Won Park
  • Patent number: 8659642
    Abstract: The present invention relates to a stereoscopic video file format capable of improving bit efficiency and processing efficiency and a computer-readable recording medium in which the corresponding stereoscopic video file are recorded.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: February 25, 2014
    Assignee: Korea Electronics Technology Institute
    Inventors: Hwa Seon Shin, Jin Su Myung, Je Woo Kim, Byeong Ho Choi
  • Patent number: 8625685
    Abstract: Certain embodiments utilize raw signals to estimate channel quality, as contrasted to utilizing equalized signals or after channel estimation. For example, signal quality may be estimated by calculating powers of pilot sub-carriers and null sub-carriers of the raw signals. To mitigate channel effect, certain embodiments utilize first and/or second order differentiation schemes.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: January 7, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Jong Hyeon Park, Je Woo Kim
  • Patent number: 8626096
    Abstract: A method for combining signals coming from multiple diversity sources may include performing maximal-ratio combining (MRC) based equalization and combining for receiver antenna diversity. The method may also include performing MRC-based equalization and combining for repetition diversity. The method may also include performing MRC-based equalization and combining for duplication diversity. The MRC-based equalization and combining for receiver antenna diversity, the MRC-based equalization and combining for repetition diversity, and the MRC-based equalization and combining for duplication diversity may each be performed separately.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: January 7, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Jong Hyeon Park, Bok Tae Sim, Je Woo Kim
  • Patent number: 8620070
    Abstract: A corresponding image processing method is provided. The corresponding image processing method includes a first step for searching for a corresponding point of a corresponding image; a second step for performing radiometric calibration such that a camera response function of the corresponding image has a linear function; a third step for compensating for a color of the corresponding image by calculating a color conversion matrix; and a fourth step for measuring similarity of the corresponding image.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: December 31, 2013
    Assignee: Korean Electronics Technology Institute
    Inventors: Young-Bae Hwang, Je-Woo Kim, Byeong-Ho Choi
  • Patent number: 8612825
    Abstract: A method of data classification for use in a wireless communication system includes obtaining decoder metrics from a decoder. The decoder metrics correspond to data generated by the decoder. The decoder metrics include a symbol error rate (SER) and an energy metric (EM). The method also includes classifying the data into a first category if the data fails a cyclic redundancy check (CRC) check, into a second category if the data passes the CRC check and is determined to be unreliable, or into a third category if the data passes the CRC check and is determined to be reliable. A reliability of the data is determined based on the decoder metrics and an EM threshold.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: December 17, 2013
    Assignee: Qualcomm Incorporated
    Inventors: Prashant Udupa Sripathi, Jittra Jootar, Je Woo Kim, Feng Lu
  • Patent number: 8578250
    Abstract: A method of data classification for use in a wireless communication system includes obtaining decoder metrics from a decoder. The decoder metrics correspond to data generated by the decoder. The decoder metrics include a first metric and a second metric. The method also includes classifying the data into a first category if the data fails an error detection check, into a second category if the data passes the error detection check and is determined to be unreliable, or into a third category if the data passes the error detection check and is determined to be reliable. A reliability of the data is determined based on at least one of the decoder metrics and a threshold.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: November 5, 2013
    Assignee: Qualcomm Incorporated
    Inventors: Prashant Udupa Sripathi, Jittra Jootar, Je Woo Kim, Feng Lu