Patents by Inventor In Chul Hyun
In Chul Hyun 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: 11134298Abstract: A device includes a substrate and a video processor on the substrate. A first patch antenna is mounted to the substrate and configured to transmit and receive radio frequency signals in a frequency range. The first patch antenna is closer to a first end of the substrate than a second end of the substrate. A second patch antenna is mounted to the substrate and is configured to transmit and receive radio frequency signals in the frequency range. The second patch antenna is closer to the first end of the substrate than the second end of the substrate. The substrate includes a ground isolation region between at least one of the first patch antenna and the second patch antenna and the video processor. A media connector is on the substrate and electrically connected to the video processor.Type: GrantFiled: May 22, 2018Date of Patent: September 28, 2021Assignee: Amazon Technologies, Inc.Inventors: Jagan Vaidyanathan Rajagopalan, Ming-Wei Liu, Peruvemba Ranganath Sai Ananthanarayanan, In Chul Hyun, Mohammed Ziaul Azad, Deepak Pai Hosadurga, Sudheep Thota
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Patent number: 11108641Abstract: A switching fabric role assignment system includes a plurality of switch devices coupled together in a switching fabric. A first switch device included in the plurality of switch devices receives an endhost device identification communication from an endhost device when the endhost device is connected to the first switch device. The first switch device uses the endhost device identification communication to identify an endhost device type of the endhost device and determines, based on the endhost device type, a first switch device role for the first switch device. The first switch device then transmits a first switch device role communication that identifies the first switch device role to a second switch device included in the plurality of switch devices and connected to the first switch device. The second switch device may then determine, based on the first switch device role, a second switch device role for the second switch device.Type: GrantFiled: February 1, 2019Date of Patent: August 31, 2021Assignee: Dell Products L.P.Inventors: Balaji Rajagopalan, Charles Chul Hyun Park, Joseph LaSalle White
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Patent number: 11075465Abstract: Technologies for wireless network devices with surface-link antenna systems mounted on exterior surfaces of buildings are described. One wireless network device includes a housing with a circuit board and a first antenna port. A processor, a first antenna, a first wireless local area network (WLAN) radio, and a second WLAN radio are disposed on the circuit board. The first WLAN radio communicates with a radio of a client device using the first antenna over a first line-of-sight (LOS) or non-LOS wireless link (e.g., 2.4 GHz) inside the building. The second WLAN radio communicates with a radio of a second wireless network device using the second antenna over a second LOS wireless link (e.g., 5 GHz) that is external to the building. The first antenna is located inside the building and the second antenna is located along an exterior surface of the building.Type: GrantFiled: July 13, 2018Date of Patent: July 27, 2021Assignee: Amazon Technologies, Inc.Inventors: Tzung-I Lee, Omar Fawazhashim Zakaria, Kwok Shing Lee, Kalyan Teja Posani, Ali Mirkamali, Cheol Su Kim, In Chul Hyun
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Patent number: 11043985Abstract: Technologies directed to cable-loss compensation are described. An apparatus includes a triplexer, a front-end module (FEM) circuit, and a control circuit. The triplexer is coupled to a radio frequency (RF) cable. The triplexer receives a first RF signal and a DC power signal from a device via the RF cable and sends a detection signal being indicative of a transmit power level of the first RF signal to the device via the RF cable. The transmit power level includes an insertion loss of the RF cable. The FEM circuit is coupled to the triplexer and includes a power amplifier (PA). The control circuit is coupled to the triplexer and measures the transmit power level of the first RF signal and converts the first RF signal into the detection signal. The control circuit sends the detection signal back to the device via the RF cable and enables the PA.Type: GrantFiled: June 3, 2020Date of Patent: June 22, 2021Assignee: Amazon Technologies, Inc.Inventors: Nathan Labadie, Cheol Su Kim, Ravi Ichapurapu, Kalyan Teja Posani, Omar Fawazhashim Zakaria, In Chul Hyun
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Publication number: 20210162956Abstract: Provided are an adaptor for assembling a wiper blade, a wiper blade assembly, and a wiper device. The adaptor for assembling a wiper blade, which is configured to couple the wiper blade to two or more types of wiper arms, includes a body portion coupled to the wiper blade and to which a first type wiper arm is coupled horizontally or to which a second type wiper arm is coupled vertically and a locking portion rotatable provided on the body portion to cover a front end of the wiper arm.Type: ApplicationFiled: November 3, 2020Publication date: June 3, 2021Inventors: Seung Chul HYUN, Yun Soo KIM
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Patent number: 11025611Abstract: A method of a responding entity for creating a secure link with a requesting entity in an embedded universal integrated circuit card (eUICC) environment is provided. The method includes: receiving, from the requesting entity, a secure link creation message including signature information of the requesting entity; verifying the signature information of the requesting entity by using trust information of the requesting entity, the trust information of the requesting entity being generated by a certificate authority (CA) and transferred to the responding entity; generating a shared key used for communication between the responding entity and the requesting entity; and creating the secure link with the requesting entity by using the shared key.Type: GrantFiled: November 21, 2018Date of Patent: June 1, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chul Hyun Park, Kwan Lae Kim, Jin Hyoung Lee, Joo Young Kim
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Publication number: 20210146363Abstract: The present invention relates to a blood diagnostic device, which includes one or more blood input parts into which blood is injected, a deterministic lateral displacement separation part which communicates with the blood input part to form a blood flow path along which the blood flows and separates white blood cells from remaining blood components, a first microchannel which communicates with the deterministic lateral displacement separation part so that the white blood cells separated through the deterministic lateral displacement separation part flow therein, one or more second microchannels which communicate with the deterministic lateral displacement separation part so that the remaining blood components separated through the deterministic lateral displacement separation part flow therein, a first discharge part which communicates with the first microchannel so that the white blood cells flowing in the first microchannel are discharged therethrough, and a second discharge part which communicates with theType: ApplicationFiled: January 29, 2021Publication date: May 20, 2021Applicant: GIST(Gwangju Institute of Science and Technology)Inventors: Sung YANG, Ji Chul HYUN, Yu Gyung JUNG
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Publication number: 20210051807Abstract: The present disclosure provides a display device that include: a display panel that includes a display area and a peripheral area that is provided at the periphery of an edge of the display area; a window that is provided on one side of the display panel to protect the display panel; and an adhesive film that is provided between the display panel and the window to bond the display panel and the window to each other, wherein the adhesive film in an area that corresponds to the peripheral area and the adhesive film in an area that corresponds to the display area have different properties.Type: ApplicationFiled: November 4, 2020Publication date: February 18, 2021Inventor: Chul Hyun CHOI
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Publication number: 20200388530Abstract: Embodiments disclosed herein include semiconductor devices and methods of forming such semiconductor devices. In an embodiment, a method of fabricating a semiconductor device comprises, forming a first grating of parallel first lines, forming a second grating of parallel second lines, wherein the second lines are substantially orthogonal to the first lines, and wherein the first lines and second lines define a plurality of first openings, disposing a conformal mask layer over the first lines and the second lines, wherein the conformal mask layer partially fills the first openings and defines a second opening within each of the first openings, disposing a hardmask over the conformal mask layer, wherein the hardmask fills the second openings, patterning third openings into the hardmask, wherein the third openings clear the hardmask from at least one of the second openings, and removing the mask layer proximate to cleared second openings to clear first openings.Type: ApplicationFiled: June 7, 2019Publication date: December 10, 2020Inventors: Leonard P. GULER, Chul-Hyun LIM, Paul A. NYHUS, Elliot N. TAN, Charles H. WALLACE
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Patent number: 10764213Abstract: A switching fabric loop prevention system includes first slave switch devices in a switching fabric that each automatically determine a first slave switch device role for themselves based on first directly connected device identification information received from a first directly connected device, and second slave switch devices in the switching fabric that each automatically determine a second slave switch device role for themselves based on second directly connected device identification information received from a second directly connected device. A master switch device in the switching fabric then configures each of the first slave switch devices having the first slave switch device role to prevent first type communications that have been received from one of the second slave switch devices having the second slave switch device role from being forwarded to another of the second slave switch devices having the second slave switch device role.Type: GrantFiled: February 1, 2019Date of Patent: September 1, 2020Assignee: Dell Products L.P.Inventors: Charles Chul Hyun Park, Balaji Rajagopalan, Joseph LaSalle White
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Publication number: 20200252351Abstract: A switching fabric loop prevention system includes first slave switch devices in a switching fabric that each automatically determine a first slave switch device role for themselves based on first directly connected device identification information received from a first directly connected device, and second slave switch devices in the switching fabric that each automatically determine a second slave switch device role for themselves based on second directly connected device identification information received from a second directly connected device. A master switch device in the switching fabric then configures each of the first slave switch devices having the first slave switch device role to prevent first type communications that have been received from one of the second slave switch devices having the second slave switch device role from being forwarded to another of the second slave switch devices having the second slave switch device role.Type: ApplicationFiled: February 1, 2019Publication date: August 6, 2020Inventors: Charles Chul Hyun Park, Balaji Rajagopalan, Joseph LaSalle White
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Publication number: 20200252336Abstract: A switching fabric configuration and management system includes switch devices. Each of the switch devices identifies a domain in a switching fabric database in that switch device, and determines others of the switch devices that share the domain. Each of the switch devices may then communicate with the others of the switch devices that share the domain to designate a master switch device and one or more slave switch devices from the switch devices that share the domain. The designation of the master switch device and the one or more slave switch devices configures the master switch device and the one or more slave switch devices as a switching fabric. Each slave switch devices then reports their slave switch device status to the master switch device, and the master switch device performs at least one control operation on the at least one slave switch device.Type: ApplicationFiled: January 31, 2019Publication date: August 6, 2020Inventors: Joseph LaSalle White, Balaji Rajagopalan, Pawan Kumar Singal, Charles Chul Hyun Park, Saleem Muhammad
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Publication number: 20200252293Abstract: A switching fabric role assignment system includes a plurality of switch devices coupled together in a switching fabric. A first switch device included in the plurality of switch devices receives an endhost device identification communication from an endhost device when the endhost device is connected to the first switch device. The first switch device uses the endhost device identification communication to identify an endhost device type of the endhost device and determines, based on the endhost device type, a first switch device role for the first switch device. The first switch device then transmits a first switch device role communication that identifies the first switch device role to a second switch device included in the plurality of switch devices and connected to the first switch device. The second switch device may then determine, based on the first switch device role, a second switch device role for the second switch device.Type: ApplicationFiled: February 1, 2019Publication date: August 6, 2020Inventors: Balaji Rajagopalan, Charles Chul Hyun Park, Joseph LaSalle White
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Publication number: 20200217470Abstract: Provided is a lighting device, comprising: a light source module comprising: at least one light source disposed on a printed circuit board; and a resin layer disposed on the printed circuit board so that the light source is embedded; a light reflection member formed on at least any one of one side surface and another side surface of the resin layer; and a diffusion plate having an upper surface formed on the light source module, and a side wall which is integrally formed with the upper surface and formed to extend in a lower side direction and which is adhered onto the light reflection member, wherein a first separated space is formed between the light source module and the upper surface of the diffusion plate, whereby flexibility of the product itself can be secured, and durability and reliability of the product can be also improved.Type: ApplicationFiled: March 16, 2020Publication date: July 9, 2020Inventors: Kwang Ho PARK, Chul Hong KIM, Hyun Duck YANG, Moo Ryong PARK, Jun Chul HYUN
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Patent number: 10654361Abstract: An accelerator pedal for a vehicle, which has a hysteresis generation structure may be provided. The accelerator pedal for a vehicle includes: a housing; a cylindrical hinge which is connected to the housing; a main pedal arm which is coupled to one side of the hinge and rotates in a first direction in close contact with a first action point of the one side of the hinge when a predetermined force is applied; an auxiliary pedal arm which is coupled to the other side of the hinge and rotates in a second direction in close contact with a second action point of the other side of the hinge by an elastic force when the force applied to the main pedal arm is removed; and a spring which is coupled to a bottom of one end of the auxiliary pedal arm and applies the elastic force to the auxiliary pedal arm.Type: GrantFiled: April 18, 2019Date of Patent: May 19, 2020Assignee: KYUNG CHANG INDUSTRIAL CO., LTD.Inventors: Jong Hee Han, Ki Chul Hyun, Hyeon UK Kim
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Patent number: 10637822Abstract: A method and device for managing an identifier of an embedded universal integrated circuit card (eUICC) is disclosed. The eUICC receives an identifier information request, determines whether there is a network carrier profile in an enabled state, and provides a response with identifier information corresponding to the identifier information request based on the results of the determination. According to the method, it is possible to separately manage the unique identifier of the eUICC and a network carrier ICCID and to dynamically manage the identifier of the eUICC according to the state of the network carrier profile of the eUICC.Type: GrantFiled: September 12, 2013Date of Patent: April 28, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Myoung Hee Seo, Kwan Lae Kim, Chul Hyun Park, Jin Hyoung Lee, Hyung Jin Lee, Youn Pil Jeong
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Publication number: 20200127688Abstract: Wireless mesh network (WMN) architectures of network hardware devices organized in a mesh topology is described. One device communicates, using a first radio, first data with a second device via a first wireless link between the device and the second device. The device communicates, using a second radio, second data with a third device via a second wireless link between the device and the third device. The device communicates, using a third radio, third data with a fourth device via a third wireless link between the device and the fourth device. The device communicates, using a fourth radio, fourth data with a server of a content delivery network (CDN) via a point-to-point wireless link between the device and the server. The device is an only ingress point for content files for a mesh network that includes at least the device, the second device, and the third device.Type: ApplicationFiled: December 10, 2019Publication date: April 23, 2020Inventors: Varadarajan Gopalakrishnan, Andrew David Price, In Chul Hyun, Jin Dong Kim, Subram Narasimhan
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Patent number: 10627064Abstract: Provided is a lighting device, comprising: a light source module comprising: at least one light source disposed on a printed circuit board; and a resin layer disposed on the printed circuit board so that the light source is embedded; a light reflection member formed on at least any one of one side surface and another side surface of the resin layer; and a diffusion plate having an upper surface formed on the light source module, and a side wall which is integrally formed with the upper surface and formed to extend in a lower side direction and which is adhered onto the light reflection member, wherein a first separated space is formed between the light source module and the upper surface of the diffusion plate, whereby flexibility of the product itself can be secured, and durability and reliability of the product can be also improved.Type: GrantFiled: February 20, 2018Date of Patent: April 21, 2020Assignee: LG INNOTEK CO., LTD.Inventors: Kwang Ho Park, Chul Hong Kim, Hyun Duck Yang, Moo Ryong Park, Jun Chul Hyun
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Patent number: 10616904Abstract: A device includes first and second directional antennas, an omnidirectional antenna, and a switch selectively coupled between the first directional and omnidirectional antennas. A first radio includes first RF circuitry. A switch selectively couples the first omnidirectional antenna or the first directional antenna to the first radio. A second radio is coupled to the second directional antenna and includes second RF circuitry. An application processor receives, from first RF circuitry, a first radio frequency performance indicator (RFPI) value for signals received over the omnidirectional antenna, a second RFPI value for signals received over the first directional antenna, and, from the second RF circuitry, a third RPI value for signals received over the second directional antenna. The application processor determines a best RFPI value, selects an antenna corresponding to the best RFPI value, and selects a radio corresponding to the selected antenna.Type: GrantFiled: January 22, 2018Date of Patent: April 7, 2020Assignee: Amazon Technologies, Inc.Inventors: Ali Mirkamali, Tzung-I Lee, Omar Fawazhashim Zakaria, Kalyan Teja Posani, In Chul Hyun, Cheol Su Kim
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Patent number: D900000Type: GrantFiled: March 16, 2019Date of Patent: October 27, 2020Assignee: CAP CORPORATIONInventor: Seong Chul Hyun