Patents by Inventor Mun Geon Kyeong
Mun Geon Kyeong 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: 11894697Abstract: The present invention relates to an autonomous wireless charging system, and more specifically, to a tray-type case and a high-precision autonomous wireless charging system based on power loss tracking, whereby, in terms of performance, the center position of a power receiving coil of a wireless device having a battery mounted therein, the wireless device being placed on top of a charger pad, is precisely tracked through a controller in the system by periodically tracking a difference in the increase/decrease of a power loss value generated in the process of foreign object detection of a power transmitter, and even when the position of the wireless device shifts, a power transmitting coil mounted in a moving device unit is accurately repositioned to the changed position through threshold value identification or, when necessary, by the selective use of a sensor matrix, thereby enabling the centers of the power transmitting coil and the power receiving coil to always coincide, and thus a maximum level of wireleType: GrantFiled: December 17, 2018Date of Patent: February 6, 2024Assignee: WONCOMM CO., LTD.Inventor: Mun Geon Kyeong
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Publication number: 20210218289Abstract: The present invention relates to an autonomous wireless charging system, and more specifically, to a tray-type case and a high-precision autonomous wireless charging system based on power loss tracking, whereby, in terms of performance, the center position of a power receiving coil of a wireless device having a battery mounted therein, the wireless device being placed on top of a charger pad, is precisely tracked through a controller in the system by periodically tracking a difference in the increase/decrease of a power loss value generated in the process of foreign object detection of a power transmitter, and even when the position of the wireless device shifts, a power transmitting coil mounted in a moving device unit is accurately repositioned to the changed position through threshold value identification or, when necessary, by the selective use of a sensor matrix, thereby enabling the centers of the power transmitting coil and the power receiving coil to always coincide, and thus a maximum level of wireleType: ApplicationFiled: December 17, 2018Publication date: July 15, 2021Applicant: WONCOMM CO., LTD.Inventor: Mun Geon KYEONG
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Patent number: 9083395Abstract: Provided is a multi-mode ultra broadband wireless communication apparatus and method, and a multi-mode ultra broadband transmitting apparatus may include a baseband outputting unit to parallelly output multiple digital signals, a mid-frequency processing unit to up-convert the outputted parallel digital signals to mid-frequencies, and the up-conversion is performed in a range where the outputted parallel digital signals do not cause interference with each other, a parallel-to-serial converter to convert, to a serial digital signal, the converted parallel digital signals that are up-converted to the mid-frequencies, a digital-to-analog converter to convert the serial digital signal to an analog signal, and a radio frequency processing unit to up-convert the analog signal to multiple transmission frequencies respectively corresponding to desired communication services.Type: GrantFiled: December 7, 2010Date of Patent: July 14, 2015Assignee: Electronics and Telecommunications Research InstituteInventors: Mun Geon Kyeong, Woo Yong Lee
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Patent number: 8750401Abstract: Provided is a sequential transmission multi-beamforming apparatus and method with a low complexity based on a Hadamard matrix. A simple codebook may be generated based on the Hadamard matrix and thus, a number of weighted-vectors is reduced and a complexity of hardware is decreased. A diversity gain may be maximized based on a spatial diversity processing apparatus and a beamforming weighted vector may be systematically generated.Type: GrantFiled: December 15, 2010Date of Patent: June 10, 2014Assignee: Electronics and Telecommunications Research InstituteInventors: Mun Geon Kyeong, Won Cheol Lee, Woo Yong Lee, Kapseok Chang, Seung Eun Hong, Hyung Min Chang
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Patent number: 8675715Abstract: A high-bandwidth communication modem such as an ultra wideband (UWB) communication modem or a high-giga wideband (HGWB) modem includes an interface configured to transceive data in connection with a host device, a baseband processor configured to process, in a parallel manner, a baseband signal being transceived between the interface and a parallel/serial converter, the parallel/serial converter configured to combine a parallel signal into a serial signal and output the serial signal, and separate a serial signal into a parallel signal and output the parallel signal, a radio frequency (RF) processor configured to reduce a frequency of a received UWB or HGWB signal and transmit the frequency-reduced signal to the parallel/serial converter, and increase a frequency of the serial signal received from the parallel/serial converter and transmit the frequency-increased signal to a directional antenna, and the directional antenna configured to transceive a wireless signal by forming a directional beam and control aType: GrantFiled: December 23, 2010Date of Patent: March 18, 2014Assignee: Electronics and Telecommunications Research InstituteInventors: Mun Geon Kyeong, Yun Ho Choi, Woo Yong Lee
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Patent number: 8594154Abstract: Provided is a method and apparatus for transmitting and receiving a signal in a multi-antenna communication system. A method of transmitting a signal via a multipath channel in the multi-antenna communication system may include: generating continuous orthogonal spreading codes; spread-modulating a user signal using the continuous orthogonal spreading codes to generate a spread signal; performing pre-rake combining of the spread signal to generate a pre-rake synthesized signal; and transmitting the pre-rake synthesized signal via multiple antennas.Type: GrantFiled: November 24, 2009Date of Patent: November 26, 2013Assignee: Electronics and Telecommunications Research InstituteInventor: Mun Geon Kyeong
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Patent number: 8456377Abstract: Provided is an apparatus and method that may dispose multiple antennas positioned in each of terminals in such a way that respective arrangements of the multiple antennas of the terminals are parallel to each other even when the terminal is rotated, thereby increasing a channel capacity. A transmission apparatus using the multiple antennas may include a first antenna unit to be disposed parallel to an arrangement of multiple antennas of a receiver while facing the arrangement of the multiple antennas of the receiver, and a second antenna unit where a transmission antenna is additionally disposed so that an arrangement of multiple antennas of a transmitter is parallel to the arrangement of the multiple antennas of the receiver while facing the arrangement of the multiple antennas of the receiver, when the transmitter is rotated.Type: GrantFiled: November 4, 2010Date of Patent: June 4, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Mun Geon Kyeong, Woo Yong Lee, Seung Joon Lee
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Publication number: 20120280840Abstract: Provided is a multi-mode ultra broadband wireless communication apparatus and method, and a multi-mode ultra broadband transmitting apparatus may include a baseband outputting unit to parallelly output multiple digital signals, a mid-frequency processing unit to up-convert the outputted parallel digital signals to mid-frequencies, and the up-conversion is performed in a range where the outputted parallel digital signals do not cause interference with each other, a parallel-to-serial converter to convert, to a serial digital signal, the converted parallel digital signals that are up-converted to the mid-frequencies, a digital-to-analog converter to convert the serial digital signal to an analog signal, and a radio frequency processing unit to up-convert the analog signal to multiple transmission frequencies respectively corresponding to desired communication services.Type: ApplicationFiled: December 7, 2010Publication date: November 8, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Mun Geon Kyeong, Woo Yong Lee
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Publication number: 20120093200Abstract: Provided are a beamforming receiving/transmitting function and a beamforming receiving/transmitting structure, which are optimized for a given basic system in order to provide advanced performance in consideration of a wireless mobile communication system through a ultra-high performance CDMA array antenna based on continuously orthogonal spreading codes and a pre-rake scheme for non-interference communication. Also, there is provided a chip-level/symbol-level beamforming receiving/transmitting apparatus based on a multiple-input multiple-output (MIMO) system on a forward/backward link in order to be applied to various advanced wireless mobile communication applications by improving the performance and capacity of a Code Division Multiple Access (CDMA) array antenna system based on continuously orthogonal spreading codes and a pre-rake scheme for non-interference communication, and a forward and backward link automatic beamforming method.Type: ApplicationFiled: October 14, 2011Publication date: April 19, 2012Applicant: Electronics and Telecommunications Research InstituteInventor: Mun-Geon KYEONG
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Publication number: 20110150040Abstract: An ultra wideband (UWB) communication modem includes an interface configured to transceive data in connection with a host device, a baseband processor configured to process, in a parallel manner, a baseband signal being transceived between the interface and a parallel/serial converter, the parallel/serial converter configured to combine a parallel signal into a serial signal and output the serial signal, and separate a serial signal into a parallel signal and output the parallel signal, a radio frequency (RF) processor configured to reduce a frequency of a received UWB signal and transmit the frequency-reduced signal to the parallel/serial converter, and increase a frequency of the serial signal received from the parallel/serial converter and transmit the frequency-increased signal to a directional antenna, and the directional antenna configured to transceive a wireless signal by forming a directional beam and control a direction of the directional beam.Type: ApplicationFiled: December 23, 2010Publication date: June 23, 2011Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Mun Geon KYEONG, Yun Ho Choi, Woo Yong Lee
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Publication number: 20110142154Abstract: Provided is a sequential transmission multi-beamforming apparatus and method with a low complexity based on a Hadamard matrix. A simple codebook may be generated based on the Hadamard matrix and thus, a number of weighted-vectors is reduced and a complexity of hardware is decreased. A diversity gain may be maximized based on a spatial diversity processing apparatus and a beamforming weighted vector may be systematically generated.Type: ApplicationFiled: December 15, 2010Publication date: June 16, 2011Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, SOONGSIL UNIVERSITY RESEARCH CONSORTIUM TECHNOPARKInventors: Mun Geon KYEONG, Won Cheol LEE, Woo Yong LEE, Kapseok CHANG, Seung Eun HONG, Hyung Min CHANG
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Publication number: 20110102294Abstract: Provided is an apparatus and method that may dispose multiple antennas positioned in each of terminals in such a way that respective arrangements of the multiple antennas of the terminals are parallel to each other even when the terminal is rotated, thereby increasing a channel capacity. A transmission apparatus using the multiple antennas may include a first antenna unit to be disposed parallel to an arrangement of multiple antennas of a receiver while facing the arrangement of the multiple antennas of the receiver, and a second antenna unit where a transmission antenna is additionally disposed so that an arrangement of multiple antennas of a transmitter is parallel to the arrangement of the multiple antennas of the receiver while facing the arrangement of the multiple antennas of the receiver, when the transmitter is rotated.Type: ApplicationFiled: November 4, 2010Publication date: May 5, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Mun Geon KYEONG, Woo Yong LEE, Seung Joon LEE
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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: 20100142595Abstract: A communication system generates a continuously orthogonal spreading code for a user, a user signal is spreading-modulated by using the continuously orthogonal spreading codes, and then the spread signal is pre-rake combined and transmitted. A receiver processes the received signal by using a matched filter for one path.Type: ApplicationFiled: November 30, 2007Publication date: June 10, 2010Applicant: Electronics and Telecommunications Research InstituteInventors: Mun-Geon Kyeong, Woo-Goo Park, In-Cheol Jeong, Jae-Sang Cha
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Patent number: 7340282Abstract: Disclosed are an apparatus for forward beamforming using a terminal feedback and a method thereof. The base station estimates an angle of arrival (AOA) range of a user signal from reverse link received data and calculates a plurality of beamforming weights steering the estimated AOA range. Then, the base station transmits a user pilot signal by sequentially using the plurality of beamforming weights at different time areas through a control channel to estimate a forward channel conditions. A terminal calculates the user pilot signal power for all fingers at the respective time areas and feeds a time area number corresponding to the greatest power back to the base station. The base station transmits a data channel signal using a beamforming weight corresponding to the time area number fed back from the terminal.Type: GrantFiled: October 11, 2005Date of Patent: March 4, 2008Assignee: Electronics and Telecommunications Research InstituteInventors: Hyeong Geun Park, Hyun Seo Oh, Mun Geon Kyeong
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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
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Patent number: 7095814Abstract: An apparatus for very high performance space-time array reception processing using chip-level beamforming and fading rate adaptation is disclosed.Type: GrantFiled: October 11, 2001Date of Patent: August 22, 2006Assignee: Electronics and Telecommunications Research InstituteInventors: Mun Geon Kyeong, Jae Joon Park
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Patent number: 7043272Abstract: Disclosed are an apparatus for forward beamforming using a terminal feedback and a method thereof. The base station estimates an angle of arrival (AOA) range of a user signal from reverse link received data and calculates a plurality of beamforming weights steering the estimated AOA range. Then, the base station transmits a user pilot signal by sequentially using the plurality of beamforming weights at different time areas through a control channel to estimate a forward channel conditions. A terminal calculates the user pilot signal power for all fingers at the respective time areas and feeds a time area number corresponding to the greatest power back to the base station. The base station transmits a data channel signal using a beamforming weight corresponding to the time area number fed back from the terminal.Type: GrantFiled: December 26, 2001Date of Patent: May 9, 2006Assignee: Electronics and Telecommunications Research InstituteInventors: Hyeong Geun Park, Hyun Seo Oh, Mun Geon Kyeong
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Patent number: 7027421Abstract: This invention relates to a method and apparatus for increasing the performance of searcher by using the array antenna when the signal to interference plus noise ratio is low. The two-dimensional searcher performs the spatial-filtering to reduce the noise and interference components and then correlates the spatial-filtered signal with a pseudo noise (PN) code to thereby detect the incoming signals and acquire the corresponding code timings. Furthermore, the two-dimensional searcher can be used to increase the performance of a finger beamformer in two ways. One is to use searcher beamforming weight as initial finger beamforming weight to increase the convergence speed in the adaptive beamforming algorithms. The other is to reduce an amount of computation in the angle of arrival estimation algorithms by calculating the azimuth power spectrum only for the specific angle range.Type: GrantFiled: October 12, 2001Date of Patent: April 11, 2006Assignee: Electronics and Telecommunications Research InstituteInventors: Hyung Gun Park, Mun Geon Kyeong, Hyun Seo Oh, Kyung Hi Chang
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Patent number: RE39275Abstract: In the hardware-efficient demodulator for a CDMA adaptive antenna array mechanism of a mobile radio communication system, a correlators bank receives digital baseband signals received through an antenna array of a base station and computes correlation values with a local code sequence. A beamformer receives the digital baseband signals and the correlation values from the correlators bank and calculates beamforming weight vectors. A searchers bank receives the digital baseband signals and calculates an initial acquisition and reliable timing information for a multipath search by a common work with the beamformer, which uses a beamforming algorithm. A beamforming complex multiplier for a finger performs a complex multiplication for the beamforming weight vectors and the digital baseband signals, and sums up them.Type: GrantFiled: June 18, 2003Date of Patent: September 12, 2006Assignee: Electronics and Telecommunications Research InstituteInventors: Kyung Hi Chang, Hyung Rae Park, Mun Geon Kyeong, Eung Soon Shin, Yang Gi Kang, Youn Ok Park