Patents by Inventor Jae Ho Chung
Jae Ho Chung 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: 9271243Abstract: The device for controlling a wireless access point comprises: a grouping unit which groups wireless access points which use the same channel, by using channel use information received from the wireless access points; a map generator which computes each received signal strength value of the grouped wireless access points and each output strength value of the grouped wireless access points; an extractor which extracts a wireless access point having the highest received signal strength value among the grouped wireless access points, if interference occurs between said grouped wireless access points; and an optimal output strength value-calculator which computes a corrected output strength value by using the received signal strength value of the extracted wireless access point, a threshold value of predetermined received signal strength, and a currently used output strength value between said grouped wireless access points.Type: GrantFiled: October 19, 2011Date of Patent: February 23, 2016Assignee: KT CorporationInventors: Byung Wan Yoon, Jae Ho Chung, Joo Young Yoon, Kyu Jeong Han, Yung Ha Ji
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Patent number: 9231688Abstract: An apparatus for wireless relaying comprises: a transmission unit for generating a wireless signal; an amplification unit for amplifying and outputting the wireless signal; a conversion unit for converting the wireless signal into a digital signal; and an adjustment unit for adjusting the amplification ratio of the amplifying unit so that the difference between an output level value of the digital signal and a predetermined target power is lower than a predetermined numerical value.Type: GrantFiled: October 19, 2011Date of Patent: January 5, 2016Assignee: KT CorporationInventors: Jae Ho Chung, Byung Wan Yoon, Yung Ha Ji, Kyu Jeong Han
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Publication number: 20150087326Abstract: The disclosure is related to a method of adaptive call admission control in a base station. When a call access request is received from a user equipment determination may be made as to whether an available call admission capacity of the base station reaches a first limit. When the available call admission capacity of the base station reaches the first limit determination may be made as to whether the received call access request is for a preferred call. Then, determination may be made as to whether a reserved call admission capacity reaches a second limit when the received call access request is for the preferred call. When the reserved call admission capacity has not reached a second limit, access of the user equipment associated with the received call access request may be allowed.Type: ApplicationFiled: December 1, 2014Publication date: March 26, 2015Inventors: Jae-Ho CHUNG, Wi-Sang RHO, Yung-Ha JI, Kyu-Jeong HAN
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Patent number: 8929910Abstract: The disclosure is related to a method of adaptive call admission control in a base station. When a call access request is received from a user equipment determination may be made as to whether an available call admission capacity of the base station reaches a first limit. When the available call admission capacity of the base station reaches the first limit determination may be made as to whether the received call access request is for a preferred call. Then, determination may be made as to whether a reserved call admission capacity reaches a second limit when the received call access request is for the preferred call. When the reserved call admission capacity has not reached a second limit, access of the user equipment associated with the received call access request may be allowed.Type: GrantFiled: May 8, 2013Date of Patent: January 6, 2015Assignee: KT CorporationInventors: Jae-Ho Chung, Wi-Sang Rho, Yung-Ha Ji, Kyu-Jeong Han
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Publication number: 20140321300Abstract: The device for controlling a wireless access point comprises: a grouping unit which groups wireless access points which use the same channel, by using channel use information received from the wireless access points; a map generator which computes each received signal strength value of the grouped wireless access points and each output strength value of the grouped wireless access points; an extractor which extracts a wireless access point having the highest received signal strength value among the grouped wireless access points, if interference occurs between said grouped wireless access points; and an optimal output strength value-calculator which computes a corrected output strength value by using the received signal strength value of the extracted wireless access point, a threshold value of predetermined received signal strength, and a currently used output strength value between said grouped wireless access points.Type: ApplicationFiled: October 19, 2011Publication date: October 30, 2014Applicant: KT CORPORATIONInventors: Byung Wan Yoon, Jae Ho Chung, Joo Young Yoon, Kyu Jeong Han, Yung Ha Ji
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Publication number: 20140119222Abstract: A method and an apparatus for testing a throughout of a wireless access point apparatus are provided. The apparatus includes a receiver which is configured to receive a test start request signal and a test packet transmission condition change request signal, a test signal generator which is configured to generate a test packet signal; a transmission condition adjuster configured to adjust the transmission condition of the test packet signal; a transmitter configured to transmit the test packet signal to the neighboring access point apparatus under the transmission condition, which is adjusted by the transmission condition adjuster; and a test executor configured to execute a test having a predetermined sequence so as to execute a throughput test for the neighboring access point apparatus with regards to receiving the test packet signal.Type: ApplicationFiled: October 19, 2011Publication date: May 1, 2014Applicant: KT CORPORATIONInventors: Jae Ho Chung, Sung Sang You, Jae Seon Jang, Yung Ha Ji
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Publication number: 20140108694Abstract: An electronic apparatus includes a communication interface unit configured to perform communication with a docking apparatus when the docking apparatus is mounted, a sensor configured to sense a temperature of a central processing unit (CPU), and a controller configured to determine an operation mode of the electronic apparatus according to a mounting state of the docking apparatus and control performance of the CPU according to the determined operation mode and the sensed temperature of the CPU.Type: ApplicationFiled: July 25, 2013Publication date: April 17, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae-ho CHUNG, Chang-eop KWAK
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Publication number: 20140057556Abstract: An apparatus for wireless relaying comprises: a transmission unit for generating a wireless signal; an amplification unit for amplifying and outputting the wireless signal; a conversion unit for converting the wireless signal into a digital signal; and an adjustment unit for adjusting the amplification ratio of the amplifying unit so that the difference between an output level value of the digital signal and a predetermined target power is lower than a predetermined numerical value.Type: ApplicationFiled: October 19, 2011Publication date: February 27, 2014Applicant: KT CORPORATIONInventors: Jae Ho Chung, Byung Wan Yoon, Yung Ha Ji, Kyu Jeong Han
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Publication number: 20140036715Abstract: A method and apparatus for testing signal reception sensitivity of a wireless access point are provided. The apparatus includes a receiver which is configured to receive a test start request signal, a transmission power level change request signal and a test packet retransmission request signal from a neighboring access point apparatus; a test signal generator which is configured to generate a test packet signal to be transmitted to the neighboring access point apparatus; a transmission power level adjuster which is configured to adjust a transmission power level of the test packet signal; a transmitter which is configured to transmit the test packet signal to the neighboring access point apparatus with a power having a level adjusted by the transmission power level adjuster; and a test executor which is configured to execute a test program having a predetermined sequence for testing a signal reception sensitivity of the neighboring access point apparatus.Type: ApplicationFiled: October 17, 2011Publication date: February 6, 2014Applicant: KT CORPORATIONInventors: Jae Ho Chung, Wi Sang Rho, Yung Ha Ji, Kyu Jeong Han
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Publication number: 20130303182Abstract: The disclosure is related to a method of adaptive call admission control in a base station. When a call access request is received from a user equipment determination may be made as to whether an available call admission capacity of the base station reaches a first limit. When the available call admission capacity of the base station reaches the first limit determination may be made as to whether the received call access request is for a preferred call. Then, determination may be made as to whether a reserved call admission capacity reaches a second limit when the received call access request is for the preferred call. When the reserved call admission capacity has not reached a second limit, access of the user equipment associated with the received call access request may be allowed.Type: ApplicationFiled: May 8, 2013Publication date: November 14, 2013Applicant: KT CORPORATIONInventors: Jae-Ho CHUNG, Wi-Sang RHO, Yung-Ha JI, Kyu-Jeong HAN
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Patent number: 7475861Abstract: Disclosed herein is a seat rail for vehicles. The seat rail of this invention eliminates gaps between a lower track and an upper track in horizontal and vertical directions, and distributes a load transmitted through the upper track, thus improving overall durability. The invention reduces the number of parts required, thus reducing the cost of a product and the working hours, realizing a light product, reducing fuel consumption, improving operational performance, reducing operational noise, and improving operating sensation. Further, the invention secures strength sufficient to support bending moment of the upper track, which is a concern during a head-on collision or a rear-end collision, thus maximizing the safety of passengers.Type: GrantFiled: October 11, 2006Date of Patent: January 13, 2009Assignee: Dymos Inc.Inventors: Jae Ho Chung, Jin Sik Kim
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Publication number: 20070181769Abstract: Disclosed herein is a seat rail for vehicles. The seat rail of this invention eliminates gaps between a lower track and an upper track in horizontal and vertical directions, and distributes a load transmitted through the upper track, thus improving overall durability. The invention reduces the number of parts required, thus reducing the cost of a product and the working hours, realizing a light product, reducing fuel consumption, improving operational performance, reducing operational noise, and improving operating sensation. Further, the invention secures strength sufficient to support bending moment of the upper track, which is a concern during a head-on collision or a rear-end collision, thus maximizing the safety of passengers.Type: ApplicationFiled: October 11, 2006Publication date: August 9, 2007Applicant: DYMOS Inc.Inventors: Jae Ho Chung, Jin Sik Kim
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Patent number: 7224997Abstract: An apparatus and method for radio signal parallel processing are provided, wherein the apparatus, which receives and processes in parallel a first and second carrier signal of frequencies ?1 and ?2 (?2>?1), includes: a first local oscillator which outputs a signal of frequency ? to a first frequency mixer which converts the first carrier signal into a signal of a first intermediate frequency (???1) and a signal of another first intermediate frequency (?+?1), and outputs the converted signals; and a second frequency mixer which converts the second carrier signal into a signal of a first intermediate frequency (?2??) and a signal of another first intermediate frequency (?2+?), and outputs the converted signals. With the above, the capacity of data reception and transmission increases, the complexity of implementing the apparatus is low, and the cost of manufacturing the apparatus is reduced.Type: GrantFiled: December 1, 2003Date of Patent: May 29, 2007Assignee: Samsung Electronics Co., Ltd.Inventor: Jae-ho Chung
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Publication number: 20060193392Abstract: An apparatus for compensating for a frequency offset and a channel variation, includes: a frequency offset compensation unit estimating the frequency offset of receptions signals received via reception ends based on a final metric value of the reception signals, and a compensator compensating for the frequency offset of the receptions signals based on the estimated frequency offset; Fast Fourier Transformers (FFTs) converting reception signals having the compensated frequency offset into frequency domain reception signals; and a frequency offset and channel variation compensation unit estimating channel coefficients of signals output from the FFTs by sub carriers, compensating for a residual frequency offset and a channel variation of the reception signals from the FFTs based on pilot signals and the estimated channel coefficients, and detecting signals transmitted from transmission ends based on the reception signals having the compensated residual frequency offset and channel variation and the estimated chaType: ApplicationFiled: January 12, 2006Publication date: August 31, 2006Inventors: Jae-hwa Kim, Tae-kon Kim, Jae-ho Chung
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Publication number: 20040110482Abstract: An apparatus and method for radio signal parallel processing are provided, wherein the apparatus, which receives and processes in parallel a first and second carrier signal of frequencies &ohgr;1 and &ohgr;2 (&ohgr;2>&ohgr;1), includes: a first local oscillator which outputs a signal of frequency &ohgr; to a first frequency mixer which converts the first carrier signal into a signal of a first intermediate frequency (&ohgr;−&ohgr;1) and a signal of another first intermediate frequency (&ohgr;+&ohgr;1), and outputs the converted signals; and a second frequency mixer which converts the second carrier signal into a signal of a first intermediate frequency (&ohgr;2−&ohgr;) and a signal of another first intermediate frequency (&ohgr;2+&ohgr;), and outputs the converted signals. With the above, the capacity of data reception and transmission increases, the complexity of implementing the apparatus is low, and the cost of manufacturing the apparatus is reduced.Type: ApplicationFiled: December 1, 2003Publication date: June 10, 2004Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Jae-Ho Chung
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Patent number: 6440276Abstract: A process for making a stoichiometric and crystalline thin film CuO catalytic layer atop a gas sensing layer for the detection of dilute sulfur compound gases. The sensing layer is made using dual ion beam sputtering, where an argon ion beam sputters targets comprising Sn or its oxides, and a pure or highly concentrated oxygen ion beam is simultaneously deposited on a substrate. The catalytic layer is made using dual ion beam sputtering, where an argon ion beam sputters targets comprising CU or its oxides, and a pure or highly concentrated oxygen ion beam is simultaneously deposited on a substrate.Type: GrantFiled: January 16, 2001Date of Patent: August 27, 2002Assignee: Tong Yang Moolsan Co., Ltd.Inventors: Yong Sahm Choe, Jae Ho Chung, Dae Seung Kim
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Publication number: 20010015319Abstract: The present invention provides processes for making stoichiometric, highly electrically resistant and crystalline gas-sensing layer of SnO2 thin-film for stable detection of reducing gases. It also provides processes for making stoichiometric and crystalline thin film CuO catalytic layer for the detection of dilute sulfur compound gases. The sensing layer is made using dual ion beam sputtering, where an argon ion beam sputters targets comprising Sn or its oxides, and a pure or highly concentrated oxygen ion beam is simultaneously deposited on a substrate. It also provides processes for making stoichiometric and crystalline thin film CuO catalytic layer for detection of dilute sulfur compound gases. The catalytic layer is made using dual ion beam sputtering, where an argon ion beam sputters targets comprising Cu or its oxides, and a pure or highly concentrated oxygen ion beam is simultaneously deposited on a substrate.Type: ApplicationFiled: January 16, 2001Publication date: August 23, 2001Inventors: Yong Sahm Choe, Jae Ho Chung, Dae Seung Kim