Patents by Inventor Sang-Bae Lee
Sang-Bae 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).
-
Patent number: 11961775Abstract: In one example, a semiconductor device can comprise a substrate, a device stack, first and second internal interconnects, and an encapsulant. The substrate can comprise a first and second substrate sides opposite each other, a substrate outer sidewall between the first substrate side and the second substrate side, and a substrate inner sidewall defining a cavity between the first substrate side and the second substrate side. The device stack can be in the cavity and can comprise a first electronic device, and a second electronic device stacked on the first electronic device. The first internal interconnect can be coupled to the substrate and the device stack. The encapsulant can cover the substrate inner sidewall and the device stack and can fill the cavity. Other examples and related methods are disclosed herein.Type: GrantFiled: November 8, 2022Date of Patent: April 16, 2024Assignee: Amkor Technology Singapore Holding Pte. Ltd.Inventors: Gyu Wan Han, Won Bae Bang, Ju Hyung Lee, Min Hwa Chang, Dong Joo Park, Jin Young Khim, Jae Yun Kim, Se Hwan Hong, Seung Jae Yu, Shaun Bowers, Gi Tae Lim, Byoung Woo Cho, Myung Jea Choi, Seul Bee Lee, Sang Goo Kang, Kyung Rok Park
-
Patent number: 11955262Abstract: An inductor includes a first magnetic body having a toroidal shape and having a ferrite; and a second magnetic body configured to be different from the first magnetic body and including a metal ribbon, wherein the second magnetic body includes an outer magnetic body disposed on an outer circumferential surface of the first magnetic body and an inner magnetic body disposed on an inner circumferential surface of the first magnetic body, and each of the outer magnetic body and inner magnetic body is wound in a plurality of layers in a circumferential direction of the first magnetic body.Type: GrantFiled: February 16, 2022Date of Patent: April 9, 2024Assignee: LG INNOTEK CO., LTD.Inventors: Mi Jin Lee, Ji Yeon Song, Yu Seon Kim, Jong Wook Lim, Seok Bae, Sang Won Lee
-
Patent number: 11935472Abstract: The present disclosure relates to a pixel sensing circuit which extends an operation section of an integrator by using an additional signal and allows securing a time required for a stable output of a sensing voltage.Type: GrantFiled: September 28, 2020Date of Patent: March 19, 2024Assignee: LX SEMICON CO., LTD.Inventors: Seung Hwan Ji, Sang Min Lee, Gi Baek Choi, Jung Bae Yun
-
Publication number: 20220163355Abstract: Embodiments relate to a Brillouin distributed optical fiber sensor including a first light source to output a first light having a modulated intensity at a preset frequency, an optical modulation unit to generate Brillouin probe light and Brillouin pump light using the first light and apply the Brillouin probe light and the Brillouin pump light to one end and the other end of a test optical fiber, respectively, a second light source to apply a second light with a frequency that is different from a frequency of the first light to one end of the test optical fiber in a direction opposite to the Brillouin pump light, and an optical detection unit to detect Brillouin scattered light generated by interaction between the Brillouin pump light and the Brillouin probe light in the test optical fiber.Type: ApplicationFiled: November 24, 2021Publication date: May 26, 2022Inventors: Gukbeen RYU, Wookjin JEONG, Sang Bae LEE, Wonsuk LEE, In Soo KIM, Jongbum KIM, Kwan Il LEE
-
Patent number: 11105659Abstract: Embodiments relate to a dual Brillouin distributed optical fiber sensing system and a sensing method using Brillouin scattering that detects an event area in which an event occurred quickly by simultaneously measuring multiple correlation points located in an optical fiber under test by using a pump signal modulated with a pulsed gating signal and a continuous wave probe signal, and then precisely measures the corresponding event area by using the probe signal modulated with the pulsed gating signal and the pump signal.Type: GrantFiled: November 19, 2019Date of Patent: August 31, 2021Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Kwan Il Lee, Gukbeen Ryu, Sang Bae Lee, In Soo Kim, Wonsuk Lee
-
Publication number: 20210148736Abstract: Embodiments relate to a dual Brillouin distributed optical fiber sensing system and a sensing method using Brillouin scattering that detects an event area in which an event occurred quickly by simultaneously measuring multiple correlation points located in an optical fiber under test by using a pump signal modulated with a pulsed gating signal and a continuous wave probe signal, and then precisely measures the corresponding event area by using the probe signal modulated with the pulsed gating signal and the pump signal.Type: ApplicationFiled: November 19, 2019Publication date: May 20, 2021Inventors: Kwan Il LEE, Gukbeen RYU, Sang Bae LEE, In Soo KIM, Wonsuk LEE
-
Publication number: 20200136073Abstract: Embodiments relate to an optoelectronic device including a substrate, a photoactive layer formed on the substrate to receive light and generate an electron-hole pair, an electron transport layer and a hole transport layer formed on both surfaces of the photoactive layer, a first electrode formed between the substrate and the photoactive layer, and a passivation layer formed at an opposite side to the first electrode on the photoactive layer.Type: ApplicationFiled: April 17, 2019Publication date: April 30, 2020Inventors: In Soo KIM, Kwan Il LEE, Sang Bae LEE, Wonsuk LEE
-
Patent number: 9477045Abstract: An optical element includes a multicore optical fiber, the multicore optical fiber including an inner core and at least one peripheral core arranged around the inner core and having an effective refractive index different from that of the inner core, and an optical fiber grating formed at the multicore optical fiber to cause an optical signal to be coupled between different cores among the inner core and the at least one peripheral core. The optical element allows a signal of a specific wavelength to be dropped added from an optical signal. Since the optical element may be fabricated easily, designed in a small size and mass-produced reproducibly at low costs, the optical element may be advantageously utilized for an optical communication network such as a wavelength division multiplexing network, an ultra-high speed optical communication system, an optical sensor system or the like.Type: GrantFiled: September 30, 2013Date of Patent: October 25, 2016Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Sang Bae Lee, Kwan Il Lee, Kyung Shik Lee
-
Publication number: 20140308005Abstract: An optical element includes a multicore optical fiber, the multicore optical fiber including an inner core and at least one peripheral core arranged around the inner core and having an effective refractive index different from that of the inner core, and an optical fiber grating formed at the multicore optical fiber to cause an optical signal to be coupled between different cores among the inner core and the at least one peripheral core. The optical element allows a signal of a specific wavelength to be dropped added from an optical signal. Since the optical element may be fabricated easily, designed in a small size and mass-produced reproducibly at low costs, the optical element may be advantageously utilized for an optical communication network such as a wavelength division multiplexing network, an ultra-high speed optical communication system, an optical sensor system or the like.Type: ApplicationFiled: September 30, 2013Publication date: October 16, 2014Applicant: Korea Institute of Science and TechnologyInventors: Sang Bae Lee, Kwan Il Lee, Kyung Shik Lee
-
Patent number: 8739323Abstract: An air injection bathtub includes: a body part having a coupling recess formed depressedly on the bottom surface thereof; a plate part adapted to be fit to the coupling recess of the body part and having a connection groove formed depressedly on one side of the underside surface thereof, at least one air passing grooves formed depressedly on the underside surface thereof in a manner as to communicate with the connection groove and to pass the air supplied from the connection groove therethrough, and at least one air injection through-holes formed on the top surface of the plate part to inject the air passing through the air passing grooves into the body part; and a valve part disposed below the connection groove in a manner as to be open and closed through the air pressure supplied from the outside and to supply air to the connection groove.Type: GrantFiled: June 25, 2012Date of Patent: June 3, 2014Inventor: Sang-Bae Lee
-
Patent number: 8339370Abstract: A display device and method of sensing an input point using magnetic fluid, the display device including: a touch panel part to receive a user input through a touch at an input point and to calculate a coordinate value of the input point; an electromagnet arrangement part comprising a plurality of electromagnets to generate a magnetic force on one or more electromagnets in a portion corresponding to the coordinate value; and a magnetic fluid part to obtain magnetism at the portion corresponding to the coordinate vale and to project in accordance with the generated magnetic force.Type: GrantFiled: January 23, 2009Date of Patent: December 25, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-Jin Yun, Sang-Bae Lee, Geun-Sik Lim
-
Publication number: 20120304375Abstract: An air injection bathtub includes: a body part having a coupling recess formed depressedly on the bottom surface thereof; a plate part adapted to be fit to the coupling recess of the body part and having a connection groove formed depressedly on one side of the underside surface thereof, at least one air passing grooves formed depressedly on the underside surface thereof in a manner as to communicate with the connection groove and to pass the air supplied from the connection groove therethrough, and at least one air injection through-holes formed on the top surface of the plate part to inject the air passing through the air passing grooves into the body part; and a valve part disposed below the connection groove in a manner as to be open and closed through the air pressure supplied from the outside and to supply air to the connection groove.Type: ApplicationFiled: June 25, 2012Publication date: December 6, 2012Inventor: Sang-Bae Lee
-
Patent number: 8135278Abstract: Provided is a bidirectional wavelength division multiplexed passive optical network (WDM-PON) which includes a central office (CO) that transmits and receives multiplexed optical signals, a remote node (RN) that communicates with the CO, receives a multiplexed optical signal to demultiplex, and receives a demultiplexed optical signal to multiplex, an optical network unit (ONU) that transmits and receives demultiplexed optical signals to and from the RN, operational and protective backbone optical fibers that connect the CO to the RN, and operational and protective distribution optical fibers that connect the RN to the ONU.Type: GrantFiled: August 4, 2008Date of Patent: March 13, 2012Assignee: Korea Institute of Science and TechnologyInventors: Kwan-Il Lee, Sang-Bae Lee
-
Publication number: 20110202903Abstract: An apparatus and method for debugging a shared library are provided. By performing the shared library-based debugging as described herein, instead of application process-based debugging, the limit of physical memory may be reduced and debugging efficiency may be improved by un-mapping a virtual map page in application processes that are mapped with the physical and logical memory addresses of the shared library.Type: ApplicationFiled: January 6, 2011Publication date: August 18, 2011Applicant: Samsung Electronics Co., Ltd.Inventors: Sang-Bae LEE, Sung-Do MOON
-
Publication number: 20100172382Abstract: An apparatus for generating a frequency-variable signal includes a light source; first and second resonators, to which the optical signals from the light source are input; a structure optically connected to the first resonator so as to be deformable by strain; a first and a second optical fiber gratings located on the structure to filter optical signals of a first wavelength and a second wavelength, respectively; and a photoelectric converter optically connected to the first resonator to generate a signal of a frequency corresponding to an interval between the first wavelength and the second wavelength. The interval between the first wavelength and the second wavelength corresponds to a degree of deformation of the structure.Type: ApplicationFiled: August 26, 2009Publication date: July 8, 2010Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Kwan Il LEE, Sang Bae Lee, Sun Duck KIM
-
Patent number: 7700031Abstract: A mold for injection molding and a molding method using the same, in which multiple gates are provided to a curved runner, thereby easily molding a product having a complicated shape and a large width, and in which a plurality of curved runners are provided, thereby easily ejecting forms that are filled in the runners. The mold includes first and second molds defining a mold cavity, a first gate disposed at a first position of the mold cavity, a second gate disposed at a second position of the mold cavity spaced apart from the first position, a first curved runner provided to the second mold so as to be connected to the first gate, and a second curved runner provided to the second mold so as to be connected to the second gate. The first and second curved runners have inlets that are connected with each other, and cross-sectional areas that are gradually reduced from the inlets to the first and second gates.Type: GrantFiled: August 21, 2007Date of Patent: April 20, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Duck Su Choi, Sang Bae Lee, Im Bong Park, Rae Hak Jeong
-
Publication number: 20100028409Abstract: A barrier membrane for guided bone regeneration and a method of manufacturing the same are provided. The barrier membrane for guided bone regeneration that is made of silver, gold, or gold alloy includes a substrate having texture including protrusions with a predetermined shape, a polymer layer formed by coating an upper surface of the substrate with polymer solution, and a bio-ceramic layer formed by coating a lower surface of the substrate. It is possible for the barrier membrane for guided bone regeneration to secure biocompatibility, exclusion and sealing of cells, space maintenance, connectivity with tissues, and easiness of using the barrier membrane which are required for guided bone/tissue regeneration (GBR/GTR).Type: ApplicationFiled: March 17, 2008Publication date: February 4, 2010Applicant: YESBIO CO., LTD.Inventors: Doug-Youn Lee, Sang-Bae Lee, Kyeong-Jun Park, Jeong-Jong Park
-
Patent number: 7627211Abstract: The present invention relates to a tunable dispersion and dispersion slope compensator based on an optical fiber grating in an optical communication system. The compensator includes: a first disk having a ring shape, wherein the first disk is configured to rotate; a second disk installed at an inner space of the first disk, wherein the second disk is configured not to rotate; a metal plate configured to bend as the first disk rotates; and an optical fiber grating adhered to the metal plate, wherein the optical fiber grating has different strains according to positions when the metal plate rotates.Type: GrantFiled: October 27, 2005Date of Patent: December 1, 2009Assignee: Korea Institute of Science and TechnologyInventors: Jun Kye Bae, Young Jun Lee, Sang Hyuck Kim, Sang Bae Lee
-
Patent number: 7597550Abstract: An molding apparatus includes a core having a recessed part corresponding to a protruding part of a molded article, an ejector pin movably provided in the core to eject the molded article, an ejector sleeve movably provided in the core to push the protruding part of the molded article, and an ejector actuating part to move the ejector pin and the ejector sleeve together to a separation position where the protruding part of the molded article is separated from the recessed portion of the core, to bring the ejector sleeve into a stop position so that the ejector sleeve does not protrude from the core, and to move the ejector pin from the separation position to a removal position where the molded article is spaced apart from the core by a predetermined distance. Accordingly, the molding apparatus is capable of preventing damage caused on an ejector sleeve.Type: GrantFiled: June 27, 2006Date of Patent: October 6, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-hun Lee, Jong-won Lee, Sang-bae Lee
-
Publication number: 20090208212Abstract: Provided is a bidirectional wavelength division multiplexed passive optical network (WDM-PON) which includes a central office (CO) that transmits and receives multiplexed optical signals, a remote node (RN) that communicates with the CO, receives a multiplexed optical signal to demultiplex, and receives a demultiplexed optical signal to multiplex, an optical network unit (ONU) that transmits and receives demultiplexed optical signals to and from the RN, operational and protective backbone optical fibers that connect the CO to the RN, and operational and protective distribution optical fibers that connect the RN to the ONU.Type: ApplicationFiled: August 4, 2008Publication date: August 20, 2009Inventors: Kwan-Il Lee, Sang-Bae Lee