Patents by Inventor Jae-Gab Lee
Jae-Gab Lee 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: 11871366Abstract: A test device may be a portable test device that can perform over the air measurements to determine synchronization errors between clusters in a cellular network. The test device can generate a graphical user interface that can show a map of the boundary area between clusters, locations of base stations hi the boundary area, locations where over the air measurements were taken by the test device, an indication of whether cells are in synchronization for each measurement location, and a table of actual measurements and derived parameters pertaining to cell phase synchronization, interference and other performance metrics.Type: GrantFiled: December 15, 2021Date of Patent: January 9, 2024Assignee: VIAVI SOLUTIONS INC.Inventors: Jong-Min Kim, Young-Kill Kim, Hyuck-In Kwon, Yoo-Chul Shin, Jae-Gab Lee
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Patent number: 11864134Abstract: According to examples, NR and LTE signal concurrent testing may include ascertaining LTE synchronization data associated with an LTE signal, and ascertaining NR synchronization data associated with an NR signal. The NR and LTE signal concurrent testing may further include performing, for the LTE synchronization data, LTE analysis, and performing, for the NR synchronization data, NR analysis. Based on the LTE analysis and the NR analysis, a multi-path profile of the LTE signal and the NR signal may be determined.Type: GrantFiled: October 28, 2022Date of Patent: January 2, 2024Assignee: VIAVI SOLUTIONS INC.Inventors: Seung-Wan Seo, Hyuck In Kwon, Jae-Gab Lee, Jin-Ook Kim
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Publication number: 20230189170Abstract: A test device may be a portable test device that can perform over the air measurements to determine synchronization errors between clusters in a cellular network. The test device can generate a graphical user interface that can show a map of the boundary area between clusters, locations of base stations in the boundary area, locations where over the air measurements were taken by the test device, an indication of whether cells are in synchronization for each measurement location, and a table of actual measurements and derived parameters pertaining to cell phase synchronization, interference and other performance metrics.Type: ApplicationFiled: December 15, 2021Publication date: June 15, 2023Applicant: VIAVI SOLUTIONS INC.Inventors: Jong-Min KIM, Young-Kill Kim, Hyuck-In Kwon, Yoo-Chul Shin, Jae-Gab Lee
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Publication number: 20230133796Abstract: A test device is operable to detect interference in a time division duplex (TDD) cellular network. The test device can automatically detect a TDD frame structure of RF signals received over the air Eagle Eye from a cell site. The test device determines a transition period between uplink (UL) and downlink (DL) transmissions in which no UL and DL signals are being transmitted based on the TDD frame structure. An interference signal is detected during the transition period, and the test device can generate a display of the spectrum during the transition period that includes the interference signal.Type: ApplicationFiled: December 7, 2021Publication date: May 4, 2023Applicant: VIAVI SOLUTIONS INC.Inventors: Jong-Min KIM, Hyuck-In KWON, Young-Kill KIM, Sung-Hwa IM, Jae-Gab LEE, Yoo-Chul SHIN
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Publication number: 20230047745Abstract: According to examples, NR and LTE signal concurrent testing may include ascertaining LTE synchronization data associated with an LTE signal, and ascertaining NR synchronization data associated with an NR signal. The NR and LTE signal concurrent testing may further include performing, for the LTE synchronization data, LTE analysis, and performing, for the NR synchronization data, NR analysis. Based on the LTE analysis and the NR analysis, a multi-path profile of the LTE signal and the NR signal may be determined.Type: ApplicationFiled: October 28, 2022Publication date: February 16, 2023Applicant: VIAVI SOLUTIONS INC.Inventors: Seung-Wan SEO, Hyuck In KWON, Jae-Gab LEE, Jin-Ook KIM
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Patent number: 11516759Abstract: According to examples, NR and LTE signal concurrent testing may include ascertaining LTE synchronization data associated with an LTE signal, and ascertaining NR synchronization data associated with an NR signal. The NR and LTE signal concurrent testing may further include performing, for the LTE synchronization data, LTE analysis, and performing, for the NR synchronization data, NR analysis. Based on the LTE analysis and the NR analysis, a mufti-path profile of the LTE signal and the NR signal may be determined.Type: GrantFiled: June 28, 2021Date of Patent: November 29, 2022Assignee: VIAVI SOLUTIONS INC.Inventors: Seung-Wan Seo, Hyuck In Kwon, Jae-Gab Lee, Jin-Ook Kim
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Patent number: 10222533Abstract: The described technology relates to a backlight unit and a display device including the backlight unit. In one aspect, the backlight unit includes a light source and a light guiding plate configured to guide light emitted from the light source. The backlight unit also includes an optical sheet integrally formed with the light guiding plate and including a micro pattern configured to emit light reflected from the light guiding plate.Type: GrantFiled: April 6, 2015Date of Patent: March 5, 2019Assignee: Kookmin University Industry Academy Cooperation FoundationInventors: Jae Gab Lee, Hoe Sub Soh, Jin Hyuk Kwon
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Patent number: 10047667Abstract: An apparatus for reducing flow noise in a commercial engine vehicle includes an actuator into which first compressed air generated according to operation of an accelerator pedal and second pressed air generated from an air tank of a vehicle are selectively introduced. The apparatus also includes a lift plate moving up and down in the actuator by a pressure of the first or second compressed air introduced thereinto. The apparatus also includes a waste gate valve operated by a pressure according to the up and down movement of the lift plate in the actuator, in order to bypass exhaust gas in a turbine when the waste gate valve is opened.Type: GrantFiled: December 30, 2016Date of Patent: August 14, 2018Assignee: Hyundai Motor CompanyInventors: Hyun Kee So, Jae Gab Lee
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Publication number: 20180106188Abstract: An apparatus for reducing flow noise in a commercial engine vehicle includes an actuator into which first compressed air generated according to operation of an accelerator pedal and second pressed air generated from an air tank of a vehicle are selectively introduced. The apparatus also includes a lift plate moving up and down in the actuator by a pressure of the first or second compressed air introduced thereinto. The apparatus also includes a waste gate valve operated by a pressure according to the up and down movement of the lift plate in the actuator, in order to bypass exhaust gas in a turbine when the waste gate valve is opened.Type: ApplicationFiled: December 30, 2016Publication date: April 19, 2018Applicant: HYUNDAI MOTOR COMPANYInventors: Hyun Kee So, Jae Gab Lee
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Publication number: 20170031084Abstract: The described technology relates to a backlight unit and a display device comprising including the backlight unit. In one aspect, the backlight unit includes a light source and a light guiding plate configured to guide light emitted from the light source, The backlight unit also includes an optical sheet integrally formed with the light guiding plate and including a micro pattern configured to emit light reflected from the light guiding plate.Type: ApplicationFiled: April 6, 2015Publication date: February 2, 2017Inventors: Jae Gab Lee, Hoe Sub Soh, Jin Hyuk Kwon
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Patent number: 9272639Abstract: A vehicle seat rail locking device restricts movement of an upper rail along a longitudinal direction of a lower rail fixed to the body of the vehicle. The locking device includes lock units moving together with the upper rail, disposed movably in a vertical direction between the lower and upper rails, and for performing a locking operation, and a lock guide moving together with the lock units and for guiding vertical movement of the lock units. Each lock unit is independently inserted into one of a plurality of lock holes formed in the lower rail to fix the upper rail onto the lower rail. A user's safety may be improved by independently forming a plurality of lock members fitted into lock holes of a lower rail and fixing one of lock members into the lock hole to perform a locking operation even when a seat rail position deviation occurs.Type: GrantFiled: April 10, 2012Date of Patent: March 1, 2016Assignee: Das Co., Ltd.Inventors: Jae Gab Lee, Jae Chul Jung
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Patent number: 8634884Abstract: A sliding-type portable terminal is provided. The portable terminal includes a first housing, a first guide member fixed to the first housing, a slide member coupled to the first guide member while facing the first guide member, the slide member being adapted to slide in a first direction under guidance of the first guide member, a second guide member fixed to the slide member, a second housing having a guide recess extending in a second direction so as to receive the second guide member, the second housing being coupled to the second guide member so as to slide in the second direction under guidance of the second guide member and an elastic member having a first end supported on the first guide member and a second end supported on the second housing so as to provide elastic force in such a direction that the first and second ends move away from each other. The sliding-type portable terminal is adapted for convenient use of not only mobile communication services, but also multimedia services.Type: GrantFiled: March 7, 2008Date of Patent: January 21, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Yong-Kyu Kim, Jae-Gab Lee
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Patent number: 8457702Abstract: A cradle for a portable terminal is provided. The portable terminal has a large display unit. The cradle for a portable terminal includes a body member an upper surface of which has an accommodating groove for accommodating a portable terminal, and one end side thereof having a first hinge portion; a flip member having one end side thereof having second hinge portion to be coupled to the first hinge portion, and one surface of the flip member rotating relative to the body member so as to close the upper surface of the portable terminal; and a rotating member having one end installed in the first hinge portion and the other end thereof being installed in the second hinge portion so as to couple the flip member to the body member such that the flip member is rotatable.Type: GrantFiled: August 25, 2010Date of Patent: June 4, 2013Inventor: Jae Gab Lee
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Publication number: 20120294674Abstract: A vehicle seat rail locking device restricts movement of an upper rail along a longitudinal direction of a lower rail fixed to the body of the vehicle. The locking device includes lock units moving together with the upper rail, disposed movably in a vertical direction between the lower and upper rails, and for performing a locking operation, and a lock guide moving together with the lock units and for guiding vertical movement of the lock units. Each lock unit is independently inserted into one of a plurality of lock holes formed in the lower rail to fix the upper rail onto the lower rail. A user's safety may be improved by independently forming a plurality of lock members fitted into lock holes of a lower rail and fixing one of lock members into the lock hole to perform a locking operation even when a seat rail position deviation occurs.Type: ApplicationFiled: April 10, 2012Publication date: November 22, 2012Applicant: DAS CO., LTD.Inventors: Jae Gab Lee, Jae Chul Jung
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Patent number: 8229525Abstract: A sliding-type portable communication terminal and a semi-automatic sliding device for the portable communication terminal are provided. The portable terminal has a body housing, a sliding housing sliding on the body housing, and a sliding device for semi-automatically moving the sliding housing with respect to the body housing. The sliding device includes a first member, a second member moving in a desired direction with respect to the first member while facing the first member, and an elastic body coupled between the first and second members. The elastic member functions as a semi-automatic driving source for driving the second member in the desired direction.Type: GrantFiled: August 13, 2007Date of Patent: July 24, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-II Seo, Jae-Gab Lee, Byung-Yeol Ko
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Publication number: 20120178507Abstract: A cradle for a portable terminal is provided. The portable terminal has a large display unit. The cradle for a portable terminal includes a body member an upper surface of which has an accommodating groove for accommodating a portable terminal, and one end side thereof having a first hinge portion; flip member having one end side thereof having second hinge portion to be coupled to the first hinge portion, and one surface of the flip member rotating relative to the body member so as to close the upper surface of the portable terminal; and a rotating member having one end installed in the first hinge portion and the other end thereof being installed in the second hinge portion so as to couple the flip member to the body member such that the flip member is rotatable.Type: ApplicationFiled: August 25, 2010Publication date: July 12, 2012Inventor: Jae Gab Lee
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Patent number: 8213599Abstract: A spring employed in a semi-automatic sliding device of a sliding-type portable communication terminal is provided. The spring includes a first spring including a first coil spring having a first end and a first other end connected to the first end by means of a first link spring and arranged at a center of the first coil spring in the form of being wound at least one time, a second spring including a second coil spring having a second end and a second other end connected to the second end by means of the first link spring and arranged at a center of the second coil spring in the form of being wound at least one time and a connector for integrally fixing the first and second coil springs to the connector. The spring assists in the opening and closing of the portable terminal, allows the portable terminal to be made thinner and is simple to manufacture based on having few parts.Type: GrantFiled: July 26, 2007Date of Patent: July 3, 2012Assignee: Samsung Electronics Co., LtdInventors: Ho-Su Kim, Jae-Gab Lee
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Publication number: 20110024759Abstract: The present invention relates to a thin film transistor substrate and a metal wiring method thereof, more particularly to a thin film transistor substrate comprising self-assembled monolayers between the substrate and the metal wiring, and a metal wiring thereof. Since a thin film transistor substrate of the present invention comprises three-dimensionally cross-linked self-assembled monolayers between the Si surface and the metal wiring, it has good adhesion ability and anti-diffusion ability.Type: ApplicationFiled: October 8, 2010Publication date: February 3, 2011Inventors: Jae-Gab LEE, Chang-Oh Jeong, Myung-Mo Sung, Hee-Jung Yang, Beom-Seok Cho
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Patent number: 7853301Abstract: A sliding module for a double sliding-type portable communication terminal is provided. The double sliding-type portable communication terminal includes a body housing and a sliding housing movably coupled to the body housing so as to slide on the body housing in a first direction and a second direction substantially perpendicular to the first direction. The sliding module includes a base member, a first sliding member laminated on the base member to enable the sliding housing to slide on the body housing in the first direction, a second sliding member integrally mounted on the sliding housing and laminated on the first sliding member to allow the sliding housing to slide on the body housing in the second direction, and a guide member provided for the sliding housing to guide the sliding movement of the second sliding member.Type: GrantFiled: July 10, 2007Date of Patent: December 14, 2010Assignee: Samsung Electronics Co., LtdInventors: Young-Kyu Kim, Jae-Gab Lee
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Patent number: 7608494Abstract: A thin film transistor array panel includes an insulating substrate, a gate wire formed on the insulating substrate. A gate insulating layer covers the gate wire. A semiconductor pattern is formed on the gate insulating layer. A data wire having source electrodes, drain electrodes and data lines is formed on the gate insulating layer and the semiconductor pattern. A protective layer is formed on the data wire. Pixel electrodes connected to the drain electrode via contact holes are formed on the protective layer. The gate wire and the data wire are made of Ag alloy containing Ag and an additive including at least one selected from Zn, In, Sn and Cr.Type: GrantFiled: April 30, 2008Date of Patent: October 27, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Gab Lee, Bong-Joo Kang, Beom-Seok Cho, Chang-Oh Jeong