Patents by Inventor Chang-Hyeon Lee
Chang-Hyeon 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: 11978759Abstract: A light emitting diode (LED) stack for a display including a substrate, a first LED stack disposed on the substrate, a second LED stack disposed on the first LED stack, a third LED stack disposed on the second LED stack, a first color filter interposed between the first LED stack and the second LED stack, and a second color filter interposed between the second LED stack and the third LED stack, in which the second LED stack and the third LED stack are configured to transmit light generated from the first LED stack to the outside, and the third LED stack is configured to transmit light generated from the second LED stack to the outside.Type: GrantFiled: July 2, 2021Date of Patent: May 7, 2024Assignee: SEOUL VIOSYS CO., LTD.Inventors: Jong Hyeon Chae, Chung Hoon Lee, Seong Gyu Jang, Chang Yeon Kim, Ho Joon Lee
-
Patent number: 11961223Abstract: An apparatus for predicting performance of a wheel in a vehicle: includes a learning device that generates a latent space for a plurality of two-dimensional (2D) wheel images based on a convolutional autoencoder (CAE), extracts a predetermined number of the plurality of 2D wheel images from the latent space, and learns a dataset having the plurality of 2D wheel images and performance values corresponding to the plurality of 2D wheel images; and a controller that predicts performance for the plurality of 2D wheel images based on a performance prediction model obtained by the learning device.Type: GrantFiled: April 20, 2021Date of Patent: April 16, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, SOOKMYUNG WOMEN'S UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Jong Ho Park, Chang Gon Kim, Chul Woo Jung, Sang Min Lee, Min Kyoo Kang, Ji Un Lee, Kwang Hyeon Hwang, Nam Woo Kang, So Young Yoo, Seong Sin Kim, Sung Hee Lee
-
Patent number: 11935912Abstract: A display apparatus including a thin film transistor (TFT) substrate; a first LED sub-unit, a second LED sub-unit, and a third LED sub-unit; first, second, third, and fourth electrode pads disposed between the TFT substrate and the first LED sub-unit; and connectors connecting the first, second, and third LED sub-units to a respective one of the electrode pads, in which the first, second, and third sub-units are configured to be independently driven; light generated from the first LED sub-unit is emitted to the outside of the display apparatus by passing through the second and third LED sub-units; light generated from the second LED sub-unit is emitted to the outside of the display apparatus by passing through the third LED sub-unit; and at least one of the connectors includes a first portion electrically connecting a first surface of the first LED sub-unit to the second electrode pad.Type: GrantFiled: June 22, 2022Date of Patent: March 19, 2024Assignee: Seoul Viosys Co., Ltd.Inventors: Jong Hyeon Chae, Seong Gyu Jang, Ho Joon Lee, Chang Yeon Kim, Chung Hoon Lee
-
Publication number: 20220302176Abstract: A semiconductor device is provided. The semiconductor device comprises a substrate including a first region, a second region, and a connecting region placed between the first region and the second region, a plurality of first multi-channel active patterns placed in the first region of the substrate, a plurality of second multi-channel active patterns placed in the second region of the substrate, a first connecting fin type pattern which is placed in the connecting region of the substrate and extends from the first region to the second region in a first direction, and a field insulating film which is placed on the substrate and covers an upper surface of the first connecting fin type pattern, wherein a width of the first connecting fin type pattern in a second direction decreases and then increases as it goes away from the first region, and the first direction is perpendicular to the second direction.Type: ApplicationFiled: November 10, 2021Publication date: September 22, 2022Inventors: Myoung-Ho KANG, Yong-Ah KIM, Dong Hyo PARK, Seong-Yul PARK, Chang Hyeon LEE
-
Patent number: 11201415Abstract: The present disclosure relates to a technology for designing a transmitarray antenna based on the mode and incidence angle of feed radio waves. The transmitarray antenna according to one embodiment of the present disclosure includes a plurality of transmitting surface unit cells having different surface structures and different longitudinal lengths located in a plurality of regions, wherein the transmitting surface unit cells are arranged in a mixed manner in the regions based on the different longitudinal lengths and the phase of a transmission coefficient determined based on an input phase and an output phase based on the mode and incidence angle of radio waves transmitted from a feed antenna.Type: GrantFiled: October 22, 2019Date of Patent: December 14, 2021Assignees: Hongik University Industry-Academia Cooperation Foundation, UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITYInventors: Jeong Hae Lee, Bomson Lee, Chang Hyeon Lee
-
Publication number: 20200274254Abstract: The present disclosure relates to a technology for designing a transmitarray antenna based on the mode and incidence angle of feed radio waves. The transmitarray antenna according to one embodiment of the present disclosure includes a plurality of transmitting surface unit cells having different surface structures and different longitudinal lengths located in a plurality of regions, wherein the transmitting surface unit cells are arranged in a mixed manner in the regions based on the different longitudinal lengths and the phase of a transmission coefficient determined based on an input phase and an output phase based on the mode and incidence angle of radio waves transmitted from a feed antenna.Type: ApplicationFiled: October 22, 2019Publication date: August 27, 2020Applicants: HONGIK UNIVERSITY INDUSTRY-ACADEMIA COOPERATION FOUNDATION, UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITYInventors: Jeong Hae LEE, Bomson LEE, Chang Hyeon LEE
-
Patent number: 9495416Abstract: A method, apparatus, and system are configured to recommend content using metadata including an event metadata unit, a searching unit, and a control unit. The event metadata generating unit is configured to generate event metadata regarding content selected by a user. The searching unit which, on the basis of the generated event metadata and social metadata regarding content uploaded to an SNS server associated with the user, is configured to search the content uploaded to the SNS server to recommend content to be provided to the user. The control unit is configured to provide the recommended content to the user using the social metadata regarding the searched recommended content.Type: GrantFiled: November 30, 2012Date of Patent: November 15, 2016Assignee: Korea Institute of Science and TechonologyInventors: Yong-Moo Kwon, Chang Hyeon Lee, Fathoni Arief Musyaffa
-
Publication number: 20150084732Abstract: There is disclosed a transformer, comprising a triangular wound core; a low voltage LV winding; and at least one high voltage HV foil disc winding and a method for manufacturing a transformer coil, comprising providing a high voltage HV inner mold assembly; and winding at least one HV foil disc winding on the HV inner mold assembly. There is also disclosed a mold for manufacturing a transformer coil, comprising side gears respectively arranged at top and bottom positions of a triangular wound core; a high voltage HV inner mold assembly connected to the side gears; and a HV outer mold assembly connected to the side gears, wherein the HV outer mold assembly has a top opening across a length thereof.Type: ApplicationFiled: May 3, 2012Publication date: March 26, 2015Inventors: Jong-Yun Lim, Seung-Chul Lee, Gun-Woo Nam, Chang-Hyeon Lee, Stephane Schaal, Martin Carlen, Samuel Outten
-
Patent number: 8866557Abstract: Resistor bias circuitry is included in components of an XTAL oscillator system to reduce 1/f noise. An XTAL oscillator includes a resistor bias circuit attached to the XTAL core. A common mode feedback OP amp connected to the XTAL core also includes a resistor bias circuit. An XTAL oscillator chain includes an XTAL core, common mode feedback OP amp, common mode logic buffer (CML BF), and differential to CMOS converter (D2C) each with resistor bias circuitry.Type: GrantFiled: August 31, 2012Date of Patent: October 21, 2014Assignee: Broadcom CorporationInventors: Chang-Hyeon Lee, Lindel Kabalican
-
Publication number: 20140292301Abstract: Compensation circuitry includes a resistor and transistor coupled in series with a reference current source to generate a variable reference voltage that is provided, via a voltage regulator, to bias elements of a core circuit in order to establish an operating current in the core circuit. In one embodiment, the resistor and transistor of the compensation circuitry are of similar construction to the bias elements of the core circuit, such that fluctuations in the ratio of the reference current and the operating current of the core circuit are minimized over process, supply voltage and temperature variations. The voltage regulator may be a low dropout regulator. In various embodiments, the core circuit may comprise a resistor biased voltage controlled oscillator, a differential current mode logic (CML) input to single CMOS output circuit, or like circuitry that may be sensitive to phase noise or requires low power operation.Type: ApplicationFiled: April 19, 2013Publication date: October 2, 2014Applicant: Broadcom CorporationInventors: Chang-Hyeon Lee, Lindel David Kabalican, Mark Jonathan Chambers
-
Publication number: 20140074879Abstract: A method, apparatus, and system are configured to recommend content using metadata including an event metadata unit, a searching unit, and a control unit. The event metadata generating unit is configured to generate event metadata regarding content selected by a user. The searching unit which, on the basis of the generated event metadata and social metadata regarding content uploaded to an SNS server associated with the user, is configured to search the content uploaded to the SNS server to recommend content to be provided to the user. The control unit is configured to provide the recommended content to the user using the social metadata regarding the searched recommended content.Type: ApplicationFiled: November 30, 2012Publication date: March 13, 2014Inventors: Yong-Moo KWON, Chang Hyeon LEE, Fathoni Arief MUSYAFFA
-
Publication number: 20140062609Abstract: Resistor bias circuitry is included in components of an XTAL oscillator system to reduce 1/f noise. An XTAL oscillator includes a resistor bias circuit attached to the XTAL core. A common mode feedback OP amp connected to the XTAL core also includes a resistor bias circuit. An XTAL oscillator chain includes an XTAL core, common mode feedback OP amp, common mode logic buffer (CML BF), and differential to CMOS converter (D2C) each with resistor bias circuitry.Type: ApplicationFiled: August 31, 2012Publication date: March 6, 2014Applicant: BROADCOM CORPORATIONInventors: Chang-Hyeon Lee, Lindel Kabalican
-
Patent number: 8111123Abstract: A method of manufacturing a transformer that includes forming a disc-wound coil using a plurality of pre-formed cooling ducts. Each cooling duct may be supported by a support pipe secured between walls of the cooling duct, or by a removable insert. First and second conductor layers are formed, each of which include plurality of disc windings arranged in an axial direction of the disc-wound coil. A spacer layer is formed between the first and second conductor layers to form a plurality of axially-extending passages. The cooling ducts are slid into the axially-extending passages so as to be disposed between the first and second conductor layers.Type: GrantFiled: September 10, 2010Date of Patent: February 7, 2012Assignee: ABB Technology AGInventors: Jong-Yun Lim, Chang-Yeol Lim, Young-Jin Ha, Chang-Hyeon Lee, Charles W. Johnson, Hae-Sun Yang, Rafael Murillo, Robert C. Ballard
-
Patent number: 8059166Abstract: A multifunctional video apparatus and a method of providing a user interface (UI) thereof. The multifunctional video apparatus has diverse functions such as image capturing, image reproduction, image editing, image input/output from/to an external device, etc., and provides a UI capable of performing the above-described functions more conveniently.Type: GrantFiled: October 11, 2007Date of Patent: November 15, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Chang-hyeon Lee, Han-kon Kim
-
Publication number: 20110063062Abstract: A method of manufacturing a transformer that includes forming a disc-wound coil using a plurality of pre-formed cooling ducts. Each cooling duct may be supported by a support pipe secured between walls of the cooling duct, or by a removable insert. First and second conductor layers are formed, each of which include plurality of disc windings arranged in an axial direction of the disc-wound coil. A spacer layer is formed between the first and second conductor layers to form a plurality of axially-extending passages. The cooling ducts are slid into the axially-extending passages so as to be disposed between the first and second conductor layers.Type: ApplicationFiled: September 10, 2010Publication date: March 17, 2011Applicant: ABB TECHNOLOGY AGInventors: Jong-Yun Lim, Chang-Yeol LIM, Young-Jin HA, Chang-Hyeon Lee, Charles W. Johnson, Hae-Sun Yang, Rafael Murillo, Robert C. Ballard
-
Patent number: 7898230Abstract: An integrated circuit assembly includes a voltage level generator, a level shifter, a bandgap reference generator and a voltage regulator. The voltage level generator generates output voltage level signals in response to a supply voltage. The level shifter receives the output voltage level signals from the voltage level generator and generates first and second sets of control signals. The bandgap reference generator receives a reference voltage input and generates a bandgap reference signal. The voltage regulator receives a supply voltage, the bandgap reference signal the first and second sets of control signals from the level shifter and generates a constant output voltage under varying circuit conditions.Type: GrantFiled: May 26, 2009Date of Patent: March 1, 2011Assignee: Skyworks Solutions, Inc.Inventors: Chang-Hyeon Lee, Joshua Cho, Pete Good
-
Publication number: 20090231024Abstract: An integrated circuit assembly includes a voltage level generator, a level shifter, a bandgap reference generator and a voltage regulator. The voltage level generator generates output voltage level signals in response to a supply voltage. The level shifter receives the output voltage level signals from the voltage level generator and generates first and second sets of control signals. The bandgap reference generator receives a reference voltage input and generates a bandgap reference signal. The voltage regulator receives a supply voltage, the bandgap reference signal the first and second sets of control signals from the level shifter and generates a constant output voltage under varying circuit conditions.Type: ApplicationFiled: May 26, 2009Publication date: September 17, 2009Inventors: Chang-Hyeon Lee, Joshua Cho, Pete Good
-
Patent number: 7554306Abstract: An integrated circuit assembly includes a voltage level generator, a level shifter, a bandgap reference generator and a voltage regulator. The voltage level generator generates output voltage level signals in response to a supply voltage. The level shifter receives the output voltage level signals from the voltage level generator and generates first and second sets of control signals. The bandgap reference generator receives a reference voltage input and generates a bandgap reference signal. The voltage regulator receives a supply voltage, the bandgap reference signal the first and second sets of control signals from the level shifter and generates a constant output voltage under varying circuit conditions.Type: GrantFiled: April 27, 2007Date of Patent: June 30, 2009Assignee: Skyworks Solutions, Inc.Inventors: Chang-Hyeon Lee, Joshua Cho, Pete Good
-
Publication number: 20080265854Abstract: An integrated circuit assembly includes a voltage level generator, a level shifter, a bandgap reference generator and a voltage regulator. The voltage level generator generates output voltage level signals in response to a supply voltage. The level shifter receives the output voltage level signals from the voltage level generator and generates first and second sets of control signals. The bandgap reference generator receives a reference voltage input and generates a bandgap reference signal. The voltage regulator receives a supply voltage, the bandgap reference signal the first and second sets of control signals from the level shifter and generates a constant output voltage under varying circuit conditions.Type: ApplicationFiled: April 27, 2007Publication date: October 30, 2008Inventors: Chang-Hyeon Lee, Joshua Cho, Pete Good
-
Publication number: 20080180549Abstract: A multifunctional video apparatus and a method of providing a user interface (UI) thereof. The multifunctional video apparatus has diverse functions such as image capturing, image reproduction, image editing, image input/output from/to an external device, etc., and provides a UI capable of performing the above-described functions more conveniently.Type: ApplicationFiled: October 11, 2007Publication date: July 31, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Chang-hyeon LEE, Han-Kon Kim