Patents by Inventor In-Kwang Kim
In-Kwang 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).
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Publication number: 20230344533Abstract: A testing device determines an Effective Isotropic Radiated Power (EIRP) of a wanted signal at a beam-peak direction and a maximum Total Radiated Power (TRP) of the wanted signal. The testing device then determines a power difference (?P) between the EIRP of the wanted signal at the beam-peak direction and the maximum TRP of the wanted signal. The testing device determines EIRP of a spectral emission mask (SEM) at each measurement bandwidth step at the beam-peak direction. The testing device then determines TRP at each measurement bandwidth step by determining a difference between the EIRP of the SEM at that measurement bandwidth step and the power difference (?P). The testing device compares the TRP at each measurement bandwidth step to a SEM specification, and reports whether the SEM specification has been met.Type: ApplicationFiled: January 24, 2023Publication date: October 26, 2023Inventors: Fucheng Wang, Fahmi L. Al Sabie, Vikas O. Jain, In Kwang Kim, Abhiram Rudrapatna Sridhar, Krishna Kalyanaraman, Ashwin Mohan, Anatoliy S. Ioffe
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Patent number: 10750427Abstract: A repeater system for relaying wireless communications between a base station and one or more devices having: a repeater to relay network information from a base station to one or more devices; a donor antenna configured to receive and/or transmit network information between the repeater and the base station; a power supply external to the repeater; and, a server antenna integrated with the power supply, the server antenna configured to receive and/or transmit network information between the repeater and the one or more devices.Type: GrantFiled: April 6, 2016Date of Patent: August 18, 2020Assignee: NEXTIVITY, INC.Inventors: Michiel Petrus Lotter, Jason Foster Cook, Richard Jacques Fortier, In Kwang Kim, Ian Riphagen, James Xiaohui Qiu
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Patent number: 9979460Abstract: An antenna system includes a donor antenna sub-system, a server antenna sub-system, and a processor to optimize the gain of the repeater in the system. The gain in the antenna system is increased by optimizing the isolation between the donor and/or server antenna sub-systems according to a cost function.Type: GrantFiled: February 18, 2015Date of Patent: May 22, 2018Assignee: Nextivity, Inc.Inventors: Michiel Petrus Lotter, Ian Riphagen, James Xiaohui Qiu, In Kwang Kim
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Patent number: 9793974Abstract: An antenna system includes a donor antenna sub-system, a server antenna sub-system, and a processor to optimize the gain of the repeater in the system. The gain in the antenna system is increased by optimizing the isolation between the donor and/or server antenna sub-systems according to a cost function.Type: GrantFiled: October 18, 2016Date of Patent: October 17, 2017Assignee: Nextivity, Inc.Inventors: Michiel Petrus Lotter, Ian Riphagen, James Xiaohui Qiu, In Kwang Kim
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Publication number: 20170041062Abstract: An antenna system includes a donor antenna sub-system, a server antenna sub-system, and a processor to optimize the gain of the repeater in the system. The gain in the antenna system is increased by optimizing the isolation between the donor and/or server antenna sub-systems according to a cost function.Type: ApplicationFiled: October 18, 2016Publication date: February 9, 2017Inventors: Michiel Petrus Lotter, Ian Riphagen, James Xiaohui Qiu, In Kwang Kim
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Publication number: 20160295495Abstract: A repeater system for relaying wireless communications between a base station and one or more devices having: a repeater to relay network information from a base station to one or more devices; a donor antenna configured to receive and/or transmit network information between the repeater and the base station; a power supply external to the repeater; and, a server antenna integrated with the power supply, the server antenna configured to receive and/or transmit network information between the repeater and the one or more devices.Type: ApplicationFiled: April 6, 2016Publication date: October 6, 2016Inventors: Michiel Petrus Lotter, Jason Foster Cook, Richard Jacques Fortier, In Kwang Kim, Ian Riphagen, James Xiaohui Qiu
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Publication number: 20150236776Abstract: An antenna system includes a donor antenna sub-system, a server antenna sub-system, and a processor to optimize the gain of the repeater in the system. The gain in the antenna system is increased by optimizing the isolation between the donor and/or server antenna sub-systems according to a cost function.Type: ApplicationFiled: February 18, 2015Publication date: August 20, 2015Inventors: Michiel Petrus Lotter, Ian Riphagen, James Xiaohui Qiu, In Kwang Kim
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Publication number: 20130194186Abstract: Provided is a pointing data input method using a pointing device having a directional sensor for inputting pointing data accurately in an intended direction regardless of the bearing of the device, and a non-directional sensor. A device (100) includes DS (110), NDS (120), and a controller (130). The controller (130) controls pointing data on the basis of NDS data, and the pointing data is recognized by the DS (110) and is inputted based on a measured movement direction and distance. The controller (130) includes a comparator (132) for comparing the NDS data with the DS data, a modifier 134 for modifier (134) for modifying the DS data, and a means (136) for outputting the movement direction recognized by the NDS (120) as pointing data.Type: ApplicationFiled: October 19, 2011Publication date: August 1, 2013Applicants: CARDCAM, CO., LTD.Inventors: Jae Sook Choi, In Kwang Kim, Young Pyo Hong
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Patent number: 8489036Abstract: A mobile phone to transmit and receive a radio frequency signal through a first antenna and a second antenna in a radio communication system includes a first radio frequency signal receiving unit to convert the radio frequency signal received through the first antenna into a baseband signal to be transmitted to a controller, a second radio frequency signal receiving unit to convert the radio frequency signal received through the second antenna into a baseband signal to be transmitted to the controller, and a radio frequency signal transmitting unit to convert a baseband signal transmitted from the controller into a radio frequency signal, to distribute the radio frequency signal, and to selectively output the distributed radio frequency signal to the first antenna and the second antenna.Type: GrantFiled: August 24, 2012Date of Patent: July 16, 2013Assignee: Pantech Co., Ltd.Inventors: In Kwang Kim, Hong Woo Lee
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Publication number: 20120322512Abstract: A mobile phone to transmit and receive a radio frequency signal through a first antenna and a second antenna in a radio communication system includes a first radio frequency signal receiving unit to convert the radio frequency signal received through the first antenna into a baseband signal to be transmitted to a controller, a second radio frequency signal receiving unit to convert the radio frequency signal received through the second antenna into a baseband signal to be transmitted to the controller, and a radio frequency signal transmitting unit to convert a baseband signal transmitted from the controller into a radio frequency signal, to distribute the radio frequency signal, and to selectively output the distributed radio frequency signal to the first antenna and the second antenna.Type: ApplicationFiled: August 24, 2012Publication date: December 20, 2012Applicants: SK TELECOM CO., LTD, PANTECH CO., LTD.Inventors: In Kwang KIM, Hong Woo LEE
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Patent number: 8275328Abstract: A mobile phone to transmit and receive a radio frequency signal through a first antenna and a second antenna in a radio communication system includes a first radio frequency signal receiving unit to convert the radio frequency signal received through the first antenna into a baseband signal to be transmitted to a controller, a second radio frequency signal receiving unit to convert the radio frequency signal received through the second antenna into a baseband signal to be transmitted to the controller, and a radio frequency signal transmitting unit to convert a baseband signal transmitted from the controller into a radio frequency signal, to distribute the radio frequency signal, and to selectively output the distributed radio frequency signal to the first antenna and the second antenna.Type: GrantFiled: March 22, 2011Date of Patent: September 25, 2012Assignees: Pantech Co., Ltd., SK Telecom Co., LtdInventors: In Kwang Kim, Hong Woo Lee
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Publication number: 20110171951Abstract: A mobile phone to transmit and receive a radio frequency signal through a first antenna and a second antenna in a radio communication system includes a first radio frequency signal receiving unit to convert the radio frequency signal received through the first antenna into a baseband signal to be transmitted to a controller, a second radio frequency signal receiving unit to convert the radio frequency signal received through the second antenna into a baseband signal to be transmitted to the controller, and a radio frequency signal transmitting unit to convert a baseband signal transmitted from the controller into a radio frequency signal, to distribute the radio frequency signal, and to selectively output the distributed radio frequency signal to the first antenna and the second antenna.Type: ApplicationFiled: March 22, 2011Publication date: July 14, 2011Applicants: PANTECH CO., LTD., SK TELECOM CO., LTDInventors: In Kwang KIM, Hong Woo LEE
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Patent number: 7929924Abstract: A mobile phone includes a controller; a receipt adjusting unit for controlling receipt of the (RF) radio frequency signal and controlling receipt diversity under control of the controller; a first RF signal receiver for converting the RF signal received through the first antenna into a baseband signal to be transmitted to the controller under control of the receipt adjusting unit; a second RF signal receiver for converting the RF signal received through the second antenna into a baseband signal to be transmitted to the controller under control of the receipt adjusting unit; a transmission diversity adjusting unit for controlling transmission diversity under control of the controller; and an RF signal transmitter for converting the baseband signal transmitted from the controller into an RF signal to be transmitted to the first antenna and transmitting the RF signal to the second antenna under control of the transmission diversity adjusting unit.Type: GrantFiled: November 19, 2009Date of Patent: April 19, 2011Assignees: Pantech Co. Ltd., SK Telecom Co., Ltd.Inventors: In Kwang Kim, Hong Woo Lee
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Publication number: 20100062815Abstract: A mobile phone includes a controller; a receipt adjusting unit for controlling receipt of the (RF) radio frequency signal and controlling receipt diversity under control of the controller; a first RF signal receiver for converting the RF signal received through the first antenna into a baseband signal to be transmitted to the controller under control of the receipt adjusting unit; a second RF signal receiver for converting the RF signal received through the second antenna into a baseband signal to be transmitted to the controller under control of the receipt adjusting unit; a transmission diversity adjusting unit for controlling transmission diversity under control of the controller; and an RF signal transmitter for converting the baseband signal transmitted from the controller into an RF signal to be transmitted to the first antenna and transmitting the RF signal to the second antenna under control of the transmission diversity adjusting unit.Type: ApplicationFiled: November 19, 2009Publication date: March 11, 2010Applicants: PANTECH CO., LTD., SK TELECOM CO., LTDInventors: In Kwang KIM, Hong Woo LEE
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Patent number: 7639991Abstract: A mobile phone includes a controller; a receipt adjusting unit for controlling receipt of the (RF) radio frequency signal and controlling receipt diversity under control of the controller; a first RF signal receiver for converting the RF signal received through the first antenna into a baseband signal to be transmitted to the controller under control of the receipt adjusting unit; a second RF signal receiver for converting the RF signal received through the second antenna into a baseband signal to be transmitted to the controller under control of the receipt adjusting unit; a transmission diversity adjusting unit for controlling transmission diversity under control of the controller; and an RF signal transmitter for converting the baseband signal transmitted from the controller into an RF signal to be transmitted to the first antenna and transmitting the RF signal to the second antenna under control of the transmission diversity adjusting unit.Type: GrantFiled: January 13, 2006Date of Patent: December 29, 2009Assignees: Pantech Co., Ltd., SK Telecom Co., Ltd.Inventors: In Kwang Kim, Hong Woo Lee
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Patent number: 6308114Abstract: A robot apparatus for detecting a sound signal outputted from a sound signal generating unit to move to a position of the sound signal generating device, wherein the sound signal has a specific pattern, includes: at least three sound receiving unit (114) for receiving the sound signal; a phase difference detecting unit (118) for detecting a phase difference between each sound signal from the sound receiving unit (114); a processing unit (125) for determining a position of the sound generating unit using the phase difference, to generate a moving control signal; and a moving unit (130) for moving the robot apparatus in response to the moving control signal.Type: GrantFiled: December 19, 2000Date of Patent: October 23, 2001Inventor: In-Kwang Kim