Patents by Inventor Bung Chul Kim
Bung Chul 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: 20240072428Abstract: The present disclosure in at least one embodiment provides a wireless communication device, comprising a lower case, an upper radome, coupled to the lower case, creating a storage space between the lower case and the upper radome, an antenna disposed in the storage space, and a plurality of internal substrates, disposed between the antenna and the lower case in the storage space, of which one of the plurality of internal substrates is connected to the antenna, wherein each internal substrate of the plurality of internal substrates is disposed along a first direction parallel to a surface of the lower case facing the plurality of internal substrates.Type: ApplicationFiled: November 7, 2023Publication date: February 29, 2024Applicant: KMW INC.Inventors: Min Sik PARK, Jun Woo YANG, Bung Chul KIM, In Ho KIM
-
Patent number: 11855344Abstract: The present disclosure in at least one embodiment provides a wireless communication device, comprising a lower case, an upper radome, coupled to the lower case, creating a storage space between the lower case and the upper radome, an antenna disposed in the storage space, and a plurality of internal substrates, disposed between the antenna and the lower case in the storage space, of which one of the plurality of internal substrates is connected to the antenna, wherein each internal substrate of the plurality of internal substrates is disposed along a first direction parallel to a surface of the lower case facing the plurality of internal substrates.Type: GrantFiled: July 30, 2021Date of Patent: December 26, 2023Assignee: KMW INC.Inventors: Min Sik Park, Jun Woo Yang, Bung Chul Kim, In Ho Kim
-
Publication number: 20210359400Abstract: The present disclosure in at least one embodiment provides a wireless communication device, comprising a lower case, an upper radome, coupled to the lower case, creating a storage space between the lower case and the upper radome, an antenna disposed in the storage space, and a plurality of internal substrates, disposed between the antenna and the lower case in the storage space, of which one of the plurality of internal substrates is connected to the antenna, wherein each internal substrate of the plurality of internal substrates is disposed along a first direction parallel to a surface of the lower case facing the plurality of internal substrates.Type: ApplicationFiled: July 30, 2021Publication date: November 18, 2021Applicant: KMW INC.Inventors: Min Sik PARK, Jun Woo YANG, Bung Chul KIM, In Ho KIM
-
Patent number: 10707924Abstract: A distributed antenna system supporting MIMO service is disclosed. Some embodiments provide a distributed antenna system supporting MIMO communication, including first node, second node and one transmission line. The first node receives MIMO downlink signals of a plurality of MIMO services each including N (a natural number of 2 or more) MIMO downlink signals, and performs, for each MIMO service, frequency-conversion of N?1 MIMO downlink signals among the N MIMO downlink signals, to different frequency band from original frequency band, to generate N MIMO downlink signals without mutually overlapping frequency bands. The second node performs, for each MIMO service, frequency-conversion of the MIMO downlink signals having been frequency-converted by first node, in a complementary manner, to reconstruct the MIMO downlink signals of original frequency band. The single transmission line is used between the first node and second node for transmitting N downlink signals without mutually overlapping frequency bands.Type: GrantFiled: October 26, 2018Date of Patent: July 7, 2020Assignee: KMW INC.Inventors: Duk-yong Kim, Young-chan Moon, Bung-chul Kim, Sang-hyo Kang
-
Patent number: 10516573Abstract: The present disclosure in some embodiments relates to an automatic configuration tool to configure and install a distributed antenna system and an installation guide using the same. According to an aspect of the present disclosure, a user or a designer is graphically provided with a user interface to define a shape of the distributed antenna system, and is provided with a configuration tool for generating a configuration file for a configuration of an actual distributed antenna system. According to another aspect of the present disclosure, there is suggested a distributed antenna system for providing an installation guide function by using a configuration file generated in the configuration tool.Type: GrantFiled: June 30, 2016Date of Patent: December 24, 2019Assignees: KMW U.S.A., Inc., SK Telesys Co., Ltd.Inventors: Bung Chul Kim, O Su Shin, Nak Zu E, Bo Yong Bae, Daniel Taeyoon Kim, Joon Hyong Shim, Dae Ho Woo, Dae Kwang Kim, Ki Wook Kim, Soo Young Choi, Myoung Yong Shin, Young Ho Jeon
-
Patent number: 10270553Abstract: A TDD (Time Division Duplex) switching control apparatus in a DAS (Distributed Antenna System) is provided. The present disclosure in some embodiments provides an apparatus, in a TDD switching control of a distributed antenna system, for transmitting a switching signal by using correlation property between a PSS (Primary Synchronization Signal) and an SSS (Secondary Synchronization Signal) and a property of a matched filter.Type: GrantFiled: July 25, 2016Date of Patent: April 23, 2019Assignees: KMW U.S.A., Inc., SK Telesys Co., Ltd.Inventors: Joon Hyong Shim, Jong Ho Park, Dae Ho Woo, Ki Wook Kim, Dae Kwang Kim, Myoung Yong Shin, Bung Chul Kim, Nak Zu E, Bo Yong Bae, Daniel Taeyoon Kim
-
Publication number: 20190068250Abstract: A distributed antenna system supporting MIMO service is disclosed. Some embodiments provide a distributed antenna system supporting MIMO communication, including first node, second node and one transmission line. The first node receives MIMO downlink signals of a plurality of MIMO services each including N (a natural number of 2 or more) MIMO downlink signals, and performs, for each MIMO service, frequency-conversion of N?1 MIMO downlink signals among the N MIMO downlink signals, to different frequency band from original frequency band, to generate N MIMO downlink signals without mutually overlapping frequency bands. The second node performs, for each MIMO service, frequency-conversion of the MIMO downlink signals having been frequency-converted by first node, in a complementary manner, to reconstruct the MIMO downlink signals of original frequency band. The single transmission line is used between the first node and second node for transmitting N downlink signals without mutually overlapping frequency bands.Type: ApplicationFiled: October 26, 2018Publication date: February 28, 2019Inventors: Duk-yong KIM, Young-chan MOON, Bung-chul KIM, Sang-hyo KANG
-
Patent number: 9871163Abstract: An apparatus for implementing an adaptive sectorization in a DAS (Distributed Antenna System) is provided. In some embodiment of the present disclosure, a DAS that supports an adaptive sectorization has the flexibility of supporting multiple sectors simply with an extension of STM (Sectorization Module) without being affected by the hardware structure. Where no sector splitting is needed, the STM is replaced by a COM (Head-end Combining Module) to provide a simple structure for supporting the sectors.Type: GrantFiled: March 28, 2016Date of Patent: January 16, 2018Assignees: KMW U.S.A., Inc., SK Telesys Co., Ltd.Inventors: Joon Hyong Shim, Jong Ho Park, Dae Ho Woo, Dae Kwang Kim, Myoung Yong Shin, Young Ho Jeon, Bung Chul Kim, Nak Zu E, Bo Yong Bae, Daniel Taeyoon Kim
-
Patent number: 9838126Abstract: Some embodiments of the present disclosure relate to an analog distributed antenna system, and its operating method, provided with an orthogonal frequency division multiplexing (OFDM) high-speed modem for use in transceiving control signals between a main unit and remote units in order to effectively control the remote units connected to the main unit.Type: GrantFiled: January 28, 2016Date of Patent: December 5, 2017Assignees: KMW U.S.A., Inc., SK Telesys Co., Ltd.Inventors: Bung Chul Kim, Nak Zu E, Bo Yong Bae, Daniel Taeyoon Kim, Joon Hyong Shim, Jong Ho Park, Dae Ho Woo, Ki Wook Kim, Soo Young Choi
-
Publication number: 20170250860Abstract: The present disclosure in some embodiments relates to an automatic configuration tool to configure and install a distributed antenna system and an installation guide using the same. According to an aspect of the present disclosure, a user or a designer is graphically provided with a user interface to define a shape of the distributed antenna system, and is provided with a configuration tool for generating a configuration file for a configuration of an actual distributed antenna system. According to another aspect of the present disclosure, there is suggested a distributed antenna system for providing an installation guide function by using a configuration file generated in the configuration tool.Type: ApplicationFiled: June 30, 2016Publication date: August 31, 2017Inventors: Bung Chul KIM, O Su SHIN, Nak Zu E, Bo Yong BAE, Daniel Taeyoon KIM, Joon Hyong SHIM, Dae Ho WOO, Dae Kwang KIM, Ki Wook KIM, Soo Young CHOI, Myoung Yong SHIN, Young Ho JEON
-
Publication number: 20170207871Abstract: A TDD (Time Division Duplex) switching control apparatus in a DAS (Distributed Antenna System) is provided. The present disclosure in some embodiments provides an apparatus, in a TDD switching control of a distributed antenna system, for transmitting a switching signal by using correlation property between a PSS (Primary Synchronization Signal) and an SSS (Secondary Synchronization Signal) and a property of a matched filter.Type: ApplicationFiled: July 25, 2016Publication date: July 20, 2017Inventors: Joon Hyong SHIM, Jong Ho PARK, Dae Ho WOO, Ki Wook KIM, Dae Kwang KIM, Myoung Yong SHIN, Bung Chul KIM, Nak Zu E, Bo Yong BAE, Daniel Taeyoon KIM
-
Publication number: 20170127288Abstract: An apparatus for implementing an adaptive sectorization in a DAS (Distributed Antenna System) is provided. In some embodiment of the present disclosure, a DAS that supports an adaptive sectorization has the flexibility of supporting multiple sectors simply with an extension of STM (Sectorization Module) without being affected by the hardware structure. Where no sector splitting is needed, the STM is replaced by a COM (Head-end Combining Module) to provide a simple structure for supporting the sectors.Type: ApplicationFiled: March 28, 2016Publication date: May 4, 2017Inventors: Joon Hyong SHIM, Jong Ho Park, Dae Ho Woo, Dae Kwang Kim, Myoung Yong Shin, Young Ho Jeon, Bung Chul Kim, Nak Zu E, Bo Yong Bae, Daniel Taeyoon Kim
-
Publication number: 20170054502Abstract: Some embodiments of the present disclosure relate to an analog distributed antenna system, and its operating method, provided with an orthogonal frequency division multiplexing (OFDM) high-speed modem for use in transceiving control signals between a main unit and remote units in order to effectively control the remote units connected to the main unit.Type: ApplicationFiled: January 28, 2016Publication date: February 23, 2017Inventors: Bung Chul KIM, Nak Zu E, Bo Yong BAE, Daniel Taeyoon KIM, Joon Hyong SHIM, Jong Ho PARK, Dae Ho WOO, Ki Wook KIM, Soo Young CHOI
-
Patent number: 9374187Abstract: A distributed antenna system includes a plurality of remote units configured to service different regions of a service area, and a head-end unit configured to process and transmit downlink signals from base stations to the remote units over optical cables, and to process and transmit uplink signals from the remote units to the base stations, wherein the remote units are configured to adjust or filter a level of downlink signals from the head-end unit and to transmit the adjusted or filtered downlink signals to mobile stations, and to process and transmit uplink signals from mobile stations to the head-end unit over the optical cables.Type: GrantFiled: August 17, 2012Date of Patent: June 21, 2016Assignee: ADVANCED RF TECHNOLOGIES, INC.Inventors: Bung Chul Kim, Younghoon Ko
-
Publication number: 20130236180Abstract: A distributed antenna system includes a plurality of remote units configured to service different regions of a service area, and a head-end unit configured to process and transmit downlink signals from base stations to the remote units over optical cables, and to process and transmit uplink signals from the remote units to the base stations, wherein the remote units are configured to adjust or filter a level of downlink signals from the head-end unit and to transmit the adjusted or filtered downlink signals to mobile stations, and to process and transmit uplink signals from mobile stations to the head-end unit over the optical cables.Type: ApplicationFiled: August 17, 2012Publication date: September 12, 2013Inventors: Bung Chul Kim, Younghoon Ko