Patents by Inventor Jae-Kyun Kwon
Jae-Kyun Kwon 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).
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Patent number: 11961177Abstract: A method of controlling a display device includes rendering a plurality of viewpoint images, generating a plurality of sub-images based on the plurality of viewpoint images and a plurality of mapping pattern images corresponding to the plurality of viewpoint images, generating a single light-field image based on the plurality of sub-images, and outputting the single light-field image.Type: GrantFiled: October 4, 2021Date of Patent: April 16, 2024Assignees: SAMSUNG DISPLAY CO., LTD., MAXST CO., LTD.Inventors: Rang Kyun Mok, Ji Young Choi, Gi Seok Kwon, Jae Joong Kwon, Beom Shik Kim, Jae Wan Park
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Publication number: 20150115833Abstract: An illumination control method is disclosed. The illumination control method comprises the steps of: acquiring a list of control information items for satisfying light-emitting conditions for illumination generated by multiple light source elements in order to have a specific color and a specific light intensity; determining control information from the list so that the sum of each driving power source for the multiple light source elements is equal to or less than a predetermined value; and adjusting the driving power sources for the multiple light source elements on the basis of the determined control information, wherein the control information indicates the each driving power source for the plurality of light source elements, the light-emitting conditions include the light intensity for each of a plurality of wavelengths, and the number of light source elements is greater than the number of light-emitting conditions.Type: ApplicationFiled: May 8, 2013Publication date: April 30, 2015Inventors: Jae Kyun Kwon, Kang-Il Ahn, Sung-Yoon Jung, Ja-Soon Jang
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Patent number: 8948600Abstract: A transmission apparatus of a wireless light communication system using an illumination light source can maximize a rate of data transmission while maintaining a brightness adjusting function of the illumination light source. The transmission apparatus includes a dimming level input unit which receives a dimming level of the illumination light source as an input, a coder which codes original data and outputs the coded data, a dimming coder which checks the dimming level input to the dimming level input unit, generates a symbol-codeword table corresponding to the dimming level, and dimming-codes the data output from the coder, a line coder which converts the data diming-coded by the dimming coder into pulse signals.Type: GrantFiled: May 24, 2011Date of Patent: February 3, 2015Assignee: Industry-Academic Cooperation Foundation, Yeungnam UniversityInventors: Jae Kyun Kwon, Sung-Yoon Jung, Ja-Soon Jang, Kang-Il Ahn
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Patent number: 8577388Abstract: Provided is a wireless position determining method and apparatus. The wireless position determining includes: a measuring unit that measures a propagation delay tap of a signal received from a transmitting end through a channel; and extractor that extracts delay spread information having various forms based on the propagation delay tap; and an obtaining and calculating unit that obtains a distance between transmission and reception ends based on the delay spread information and calculates a position of a receiving end based on the obtained distance between the transmission and reception ends.Type: GrantFiled: October 1, 2009Date of Patent: November 5, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Kanghee Kim, Geon Min Yeo, Byung-Han Ryu, Jee Hwan Ahn, Jae Kyun Kwon, Youngsuk Suh, Kyungsu Yun, Kang-Il Ahn
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Publication number: 20130071107Abstract: A transmission apparatus of a wireless light communication system using an illumination light source can maximize a rate of data transmission while maintaining a brightness adjusting function of the illumination light source. The transmission apparatus includes a dimming level input unit which receives a dimming level of the illumination light source as an input, a coder which codes original data and outputs the coded data, a dimming coder which checks the dimming level input to the dimming level input unit, generates a symbol-codeword table corresponding to the dimming level, and dimming-codes the data output from the coder, a line coder which converts the data diming-coded by the dimming coder into pulse signals.Type: ApplicationFiled: May 24, 2011Publication date: March 21, 2013Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YEUNGNAM UNIVERSITYInventors: Jae Kyun Kwon, Sung-Yoon Jung, Ja-Soon Jang, Kang-Il Ahn
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Patent number: 8279795Abstract: Disclosed are a base station, a relay station, and a terminal according to a method for designing a cellular system for improving resource usage efficiency by reducing interference between relay stations and interference between the base station and the relay station. The relay station gets control signals that terminals served by the base station transmit, and registers terminals, levels of the control signals of which are bigger than a predetermined value, to a list of the interference terminals. The relay station checks an interference resource through resource allocation information of the base station, checks an available resource corresponding to a resource except the interference resource among a resource allocated by the base station, and allocates some of the available resource to the terminal.Type: GrantFiled: May 22, 2007Date of Patent: October 2, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Hyo-Jin Lee, Hyun-Kyu Chung, Jae-Kyun Kwon, Jae-Young Ahn, Hee-Soo Lee, Byung-Jang Jeong
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Publication number: 20120184297Abstract: A method for a receiving node to find a distance from a transmitting node and measure a location includes: measuring a delay tab by receiving a location measurement signal from the transmitting node, temporarily determining a distance between the receiving node and the transmitting node by using the delay tab to compare it with a reference distance, selecting one of a distance estimation method using propagation delay and a distance estimation method using delay spread, and estimating a final distance.Type: ApplicationFiled: September 29, 2010Publication date: July 19, 2012Inventors: Kanghee Kim, Geon Min Yeo, Jae Kyun Kwon, Kyungsu Yun, Kang-II Ahn
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Patent number: 8213335Abstract: A communication resource allocation method for solving resource request imbalance content in a cell is provided. Considering a propagation environment, the base station allocates a whispering resource to a whispering area, the whispering resource being one part of the communication resource and the whispering area being a peripheral area of the first base station, and allocates a speaking resource to a speaking area, the speaking resource being other parts of the communication resource and the speaking area being a border area of a cell. When the resource request of the whispering area is increased, the base station further allocates a part of the speaking resource to the whispering area or increases a ratio of the whispering resource. When the resource request of the speaking area is increased, the base station controls a threshold value for identifying the whispering and speaking areas or increases a ratio of the speaking resource.Type: GrantFiled: August 23, 2006Date of Patent: July 3, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Jae-Kyun Kwon, Jae-Young Ahn, Hyo-Jin Lee, Hee-Soo Lee
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Patent number: 8068785Abstract: A resource division, allocation, and transmitting/receiving method of downlink for reducing inter-cell interference in an orthogonal frequency division multiplexing system are provided. Entire downlink radio resources are divided into a traffic resource group for a traffic channel and a control resource group for a control channel, the traffic resource group is divided into a first traffic resource group for the intra-cell mobile terminals and a second traffic resource group for a cell-boundary mobile terminal, and a part of the first traffic resource group is imaginarily divided into a (1?1)-th preliminary traffic resource group, the (1?1)-th preliminary traffic resource group being a preliminary resource group for the cell-boundary mobile terminal.Type: GrantFiled: September 6, 2006Date of Patent: November 29, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Jae-Young Ahn, Hee-Soo Lee, Jae-Kyun Kwon
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Publication number: 20110183689Abstract: Provided is a wireless position determining method and apparatus. The wireless position determining includes: a measuring unit that measures a propagation delay tap of a signal received from a transmitting end through a channel; and extractor that extracts delay spread information having various forms based on the propagation delay tap; and an obtaining and calculating unit that obtains a distance between transmission and reception ends based on the delay spread information and calculates a position of a receiving end based on the obtained distance between the transmission and reception ends.Type: ApplicationFiled: October 1, 2009Publication date: July 28, 2011Inventors: Kanghee Kim, Geon Min Yeo, Byung-Han Ryu, Jee Hwan Ahn, Jae Kyun Kwon, Youngsuk Suh, Kyungsu Yun, Kang-Il Ahn
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Patent number: 7912476Abstract: A method of controlling base stations that is capable of suppressing inter-cell interference and efficiently utilizing available resources. According to one aspect, information received on path loss from a terminal is used to determine a time region for the terminal based on the path loss information. Communication with the terminal is performed within the determined time region. According to another aspect, information received on path loss from a terminal is used to determine a frequency region for the terminal based on the path loss information. Communication with the terminal is performed within the determined frequency region. According to yet another aspect, information received on path loss from a terminal is used to determine a code region for the terminal based on the path loss information. Communication with the terminal is performed within the determined code region.Type: GrantFiled: December 5, 2005Date of Patent: March 22, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Jae Kyun Kwon, Hee Soo Lee, Jae Young Ahn
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Patent number: 7738510Abstract: This invention is concerned with a transmission control method and apparatus in a collision interval for a collision of multidimensional hopping patterns. In the present invention, each orthogonal wireless resource in the coordinate of the multidimensional orthogonal resource can hop according to the hopping pattern negotiated between a transmitter and a receiver, and each corresponding channel is distinguished by the hopping pattern. A specific multidimensional hopping pattern is allocated to each secondary station. The hopping pattern is either permanently allocated to the secondary stations or temporarily allocated from the primary station during a call set-up. The permanent allocation of the hopping pattern to the secondary stations is achieved when the hopping pattern is identified based on a unique identifier, such as ESN of the secondary station.Type: GrantFiled: September 18, 2002Date of Patent: June 15, 2010Assignees: Electronics and Telecommunications Research Institute, Korea Advanced Institute of Science and TechnologyInventors: Jae-Kyun Kwon, Kang-Soo Shin, Jae-Hoon Chung, Ji-Young Yun, Sung-Ho Moon, Soo-Mee Park, Dan-Keun Sung, Su-Won Park, Mun-Geon Kyeong, Jae-Sang Cha, Seo-Young Lee, Seog-Ill Song, In-Soo Sohn, Ju-Phil Cho, Jae-Joon Kim, Hee-Soo Lee
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Publication number: 20090312030Abstract: Disclosed are a base station, a relay station, and a terminal according to a method for designing a cellular system for improving resource usage efficiency by reducing interference between relay stations and interference between the base station and the relay station. The relay station gets control signals that terminals served by the base station transmit, and registers terminals, levels of the control signals of which are bigger than a predetermined value, to a list of the interference terminals. The relay station checks an interference resource through resource allocation information of the base station, checks an available resource corresponding to a resource except the interference resource among a resource allocated by the base station, and allocates some of the available resource to the terminal.Type: ApplicationFiled: May 22, 2007Publication date: December 17, 2009Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hyo-Jin Lee, Hyun-Kyu Chung, Jae-Kyun Kwon, Jae-Young Ahn, Hee-Soo Lee, Byung-Jang Jeong
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Publication number: 20090233616Abstract: A method of controlling base stations that is capable of suppressing inter-cell interference and efficiently utilizing available resources. According to one aspect, information received on path loss from a terminal is used to determine a time region for the terminal based on the path loss information. Communication with the terminal is performed within the determined time region. According to another aspect, information received on path loss from a terminal is used to determine a frequency region for the terminal based on the path loss information. Communication with the terminal is performed within the determined frequency region. According to yet another aspect, information received on path loss from a terminal is used to determine a code region for the terminal based on the path loss information. Communication with the terminal is performed within the determined code region.Type: ApplicationFiled: December 5, 2005Publication date: September 17, 2009Applicant: Electronica and Telecommunications Research InstituteInventors: Jae Kyun Kwon, Hee Soo Lee, Jae Young Ahn
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Publication number: 20090069023Abstract: A resource division, allocation, and transmitting/receiving method of downlink for reducing inter-cell interference in an orthogonal frequency division multiplexing system are provided. Entire downlink radio resources are divided into a traffic resource group for a traffic channel and a control resource group for a control channel, the traffic resource group is divided into a first traffic resource group for the intra-cell mobile terminals and a second traffic resource group for a cell-boundary mobile terminal, and a part of the first traffic resource group is imaginarily divided into a (1?1)-th preliminary traffic resource group, the (1?1)-th preliminary traffic resource group being a preliminary resource group for the cell-boundary mobile terminal.Type: ApplicationFiled: September 6, 2006Publication date: March 12, 2009Applicant: Electronics and Telecommunications Research InstituteInventors: Jae-Young Ahn, Hee-Soo Lee, Jae-Kyun Kwon
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Publication number: 20080225752Abstract: A communication resource allocation method for solving resource request imbalance content in a cell is provided. Considering a propagation environment, the base station allocates a whispering resource to a whispering area, the whispering resource being one part of the communication resource and the whispering area being a peripheral area of the first base station, and allocates a speaking resource to a speaking area, the speaking resource being other parts of the communication resource and the speaking area being a border area of a cell. When the resource request of the whispering area is increased, the base station further allocates a part of the speaking resource to the whispering area or increases a ratio of the whispering resource. When the resource request of the speaking area is increased, the base station controls a threshold value for identifying the whispering and speaking areas or increases a ratio of the speaking resource.Type: ApplicationFiled: August 23, 2006Publication date: September 18, 2008Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITInventors: Jae-Kyun Kwon, Jae-Young Ahn, Hyo-Jin Lee, Hee-Soo Lee
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Publication number: 20060239334Abstract: This invention is concerned with a transmission control method and apparatus in a collision interval for a collision of multidimensional hopping patterns. In the present invention, each orthogonal wireless resource in the coordinate of the multidimensional orthogonal resource can hop according to the hopping pattern negotiated between a transmitter and a receiver, and each corresponding channel is distinguished by the hopping pattern. A specific multidimensional hopping pattern is allocated to each secondary station. The hopping pattern is either permanently allocated to the secondary stations or temporarily allocated from the primary station during a call set-up. The permanent allocation of the hopping pattern to the secondary stations is achieved when the hopping pattern is identified based on a unique identifier, such as ESN of the secondary station.Type: ApplicationFiled: September 18, 2002Publication date: October 26, 2006Inventors: Jae-Kyun Kwon, Kang-Soo Shin, Jae-Hoon Chung, Ji-Young Yun, Sung-Ho Moon, Soo-Mee Park, Dan-Keun Sung, Su-Won Park, Mun-Geon Kyeong, Jae-Sang Cha, Seo-Young Lee, Seog-Ill Song, In-Soo Sohn, Ju-Phil Cho, Jae-Joon Kim, Hee-Soo Lee