Patents by Inventor Jung-hwa Choi
Jung-hwa Choi 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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Publication number: 20240051984Abstract: Provided is a method of preparing disodium 5?-guanylate heptahydrate crystals from an aqueous 5?-guanylic acid solution.Type: ApplicationFiled: September 21, 2020Publication date: February 15, 2024Inventors: Jung Hwa CHOI, Min Jong KIM, Chang Yub OH, Hwa Yeon LIM, Seok Hyun KANG, Yu Shin KIM, Ji Hun KANG, Il Chul KIM, Jae Hun YU
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Patent number: 11750188Abstract: The systems and methods described herein consider a first channel width of transistors of driver circuitry, where the first channel width may be set to match a second channel width of a power control transistor. A control circuit, for example, may match a second channel width of a set of power control transistors to the first channel width by turning on one or more of the set of power control transistors. Matching the width of the switches of driver circuitry and the width of the set of power control transistors may reduce losses by helping to maintain impedances of the driver circuitry.Type: GrantFiled: August 30, 2021Date of Patent: September 5, 2023Assignee: Micron Technology, Inc.Inventors: Bret Addison Johnson, Jung-Hwa Choi
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Publication number: 20230063891Abstract: The systems and methods described herein consider a first channel width of transistors of driver circuitry, where the first channel width may be set to match a second channel width of a power control transistor. A control circuit, for example, may match a second channel width of a set of power control transistors to the first channel width by turning on one or more of the set of power control transistors. Matching the width of the switches of driver circuitry and the width of the set of power control transistors may reduce losses by helping to maintain impedances of the driver circuitry.Type: ApplicationFiled: August 30, 2021Publication date: March 2, 2023Inventors: Bret Addison Johnson, Jung-Hwa Choi
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Publication number: 20220340611Abstract: Provided is a method of separating 5?-inosinic acid from a microbial culture broth containing 5?-inosinic acid.Type: ApplicationFiled: October 17, 2019Publication date: October 27, 2022Inventors: Jung Hwa CHOI, Min Jong KIM, Chang Yub OH, Hwa Yeon LIM, Jun Woo KIM, Jae Hun YU, Seok Hyun KANG, Yu Shin KIM, Il Chul KIM
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Publication number: 20220239254Abstract: Temperature compensated oscillators and associated methods are disclosed. The oscillator may include an inverter with a variable load configured to provide different conductance values based on an operating temperature of the oscillator. The variable load includes two or more branches in parallel, where each branch has a unique conductance value different from each other. Further, the variable load is coupled to a temperature sensor that generates signals based on determining the operating temperature. The signals of the temperature sensor can activate one or more branches of the variable load. As a result, the inverter may trigger at different voltage levels such that variations in the frequency of the clock signal that the oscillator generates can be reduced across different operating temperatures.Type: ApplicationFiled: January 26, 2021Publication date: July 28, 2022Inventor: Jung-Hwa Choi
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Patent number: 11398796Abstract: Temperature compensated oscillators and associated methods are disclosed. The oscillator may include an inverter with a variable load configured to provide different conductance values based on an operating temperature of the oscillator. The variable load includes two or more branches in parallel, where each branch has a unique conductance value different from each other. Further, the variable load is coupled to a temperature sensor that generates signals based on determining the operating temperature. The signals of the temperature sensor can activate one or more branches of the variable load. As a result, the inverter may trigger at different voltage levels such that variations in the frequency of the clock signal that the oscillator generates can be reduced across different operating temperatures.Type: GrantFiled: January 26, 2021Date of Patent: July 26, 2022Assignee: Micron Technology, Inc.Inventor: Jung-Hwa Choi
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Patent number: 11264069Abstract: An apparatus includes: a master die; one or more slave dies; a ZQ resister between a first node and a second node coupled to a voltage terminal; a ZQ pad coupled to each of the first node of the ZQ resister, the master die and the one or more slave dies; and a calibration channel electrically coupling the master die and the one or more slave dies, the calibration channel configured to communicate signals between the master die and the one or more slave dies for coordinating access to the ZQ pad across the master die and the one or more slave dies.Type: GrantFiled: December 22, 2020Date of Patent: March 1, 2022Assignee: Micron Technology, Inc.Inventors: Jason M. Johnson, Jung-Hwa Choi
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Patent number: 11101802Abstract: Apparatuses and methods for transmitting a command mode (e.g., operation mode) associated with a command between devices are disclosed. One device may be configured as a master and one or more devices may be configured as slaves. The command mode may be transmitted by the master to the slaves by setting a resting state of a clock signal transmitted between the devices and transitioning a device enable signal to an active state. The slaves may detect the resting state of the clock at the time the enable signal is transitioned to the active state in order to determine the command mode of the command. The devices may then execute the command in the mode indicated by the transmitted command mode.Type: GrantFiled: March 11, 2020Date of Patent: August 24, 2021Assignee: Micron Technology, Inc.Inventor: Jung-Hwa Choi
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Publication number: 20210110855Abstract: An apparatus includes: a master die; one or more slave dies; a ZQ resister between a first node and a second node coupled to a voltage terminal; a ZQ pad coupled to each of the first node of the ZQ resister, the master die and the one or more slave dies; and a calibration channel electrically coupling the master die and the one or more slave dies, the calibration channel configured to communicate signals between the master die and the one or more slave dies for coordinating access to the ZQ pad across the master die and the one or more slave dies.Type: ApplicationFiled: December 22, 2020Publication date: April 15, 2021Inventors: Jason M. Johnson, Jung-Hwa Choi
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Patent number: 10896704Abstract: An apparatus includes: a master die; one or more slave dies; a ZQ resister between a first node and a second node coupled to a voltage terminal; a ZQ pad coupled to each of the first node of the ZQ resister, the master die and the one or more slave dies; and a calibration channel electrically coupling the master die and the one or more slave dies, the calibration channel configured to communicate signals between the master die and the one or more slave dies for coordinating access to the ZQ pad across the master die and the one or more slave dies.Type: GrantFiled: November 22, 2019Date of Patent: January 19, 2021Assignee: Micron Technology, Inc.Inventors: Jason M. Johnson, Jung-Hwa Choi
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Publication number: 20200287547Abstract: Apparatuses and methods for transmitting a command mode (e.g., operation mode) associated with a command between devices are disclosed. One device may be configured as a master and one or more devices may be configured as slaves. The command mode may be transmitted by the master to the slaves by setting a resting state of a clock signal transmitted between the devices and transitioning a device enable signal to an active state. The slaves may detect the resting state of the clock at the time the enable signal is transitioned to the active state in order to determine the command mode of the command. The devices may then execute the command in the mode indicated by the transmitted command mode.Type: ApplicationFiled: March 11, 2020Publication date: September 10, 2020Applicant: Micron Technology, Inc.Inventor: Jung-Hwa Choi
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Patent number: 10630294Abstract: Apparatuses and methods for transmitting a command mode (e.g., operation mode) associated with a command between devices are disclosed. One device may be configured as a master and one or more devices may be configured as slaves. The command mode may be transmitted by the master to the slaves by setting a resting state of a clock signal transmitted between the devices and transitioning a device enable signal to an active state. The slaves may detect the resting state of the clock at the time the enable signal is transitioned to the active state in order to determine the command mode of the command. The devices may then execute the command in the mode indicated by the transmitted command mode.Type: GrantFiled: March 4, 2019Date of Patent: April 21, 2020Assignee: Micron Technology, Inc.Inventor: Jung-Hwa Choi
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Publication number: 20200111516Abstract: An apparatus includes: a master die; one or more slave dies; a ZQ resister between a first node and a second node coupled to a voltage terminal; a ZQ pad coupled to each of the first node of the ZQ resister, the master die and the one or more slave dies; and a calibration channel electrically coupling the master die and the one or more slave dies, the calibration channel configured to communicate signals between the master die and the one or more slave dies for coordinating access to the ZQ pad across the master die and the one or more slave dies.Type: ApplicationFiled: November 22, 2019Publication date: April 9, 2020Inventors: Jason M. Johnson, Jung-Hwa Choi
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Patent number: 10545303Abstract: An optical cable and an optical cable assembly having the same are provided. The optical cable includes a plurality of optical fibers each of which includes a core, a clad arranged on an outside of the core, and a coating layer arranged on an outside of the clad; a substantially transparent sheath in which the plurality of optical fibers are arranged; and a substantially transparent filler configured to fill a space between the sheath and the plurality of optical fibers.Type: GrantFiled: December 5, 2017Date of Patent: January 28, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Jung-hwa Choi, Chang-hun Bae, Young-ki Ko, Byung-ju Kwak, Sun-woo Kim, Woo-sub Bang, Sung-ki Son
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Patent number: 10504571Abstract: An apparatus includes: a ZQ connection configured to provide a reference resistance level for a ZQ calibration process that tunes one or more resistance levels associated with input/output signals at a corresponding one of a plurality of dies; one or more slave dies that are configured to implement the ZQ calibration process or a portion thereof; a master die configured to implement the ZQ calibration process or a portion thereof; and a calibration channel configured to communicate signals between the master die and the one or more of the slave dies for coordinating access to the ZQ connection across the connected dies in implementing the ZQ calibration process, wherein the plurality of dies includes the master die and the one or more slave dies.Type: GrantFiled: October 4, 2018Date of Patent: December 10, 2019Assignee: Microa Technology, Inc.Inventors: Jason M. Johnson, Jung-Hwa Choi
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Publication number: 20180188461Abstract: An optical cable and an optical cable assembly having the same are provided. The optical cable includes a plurality of optical fibers each of which includes a core, a clad arranged on an outside of the core, and a coating layer arranged on an outside of the clad; a substantially transparent sheath in which the plurality of optical fibers are arranged; and a substantially transparent filler configured to fill a space between the sheath and the plurality of optical fibers.Type: ApplicationFiled: December 5, 2017Publication date: July 5, 2018Inventors: Jung-hwa Choi, Chang-hun Bae, Young-ki Ko, Byung-ju Kwak, Sun-woo Kim, Woo-sub Bang, Sung-ki Son
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Patent number: 9947263Abstract: A display apparatus capable of controlling a curvature of a viewing area in which a broadcast image is displayed and a curvature of an area except the viewing area to be different from each other, and a control method of the same. A display apparatus includes a display; and a driving device configured to change a curvature of the display, wherein the driving device may control a curvature of a viewing area and a curvature of a background area to be different from each other.Type: GrantFiled: May 27, 2016Date of Patent: April 17, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kwang Youn Kim, Joon Seok Ahn, Seok Woo Yong, Jun-mo Yoo, Jung Hwa Choi
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Publication number: 20170124937Abstract: A display apparatus capable of controlling a curvature of a viewing area in which a broadcast image is displayed and a curvature of an area except the viewing area to be different from each other, and a control method of the same. A display apparatus includes a display; and a driving device configured to change a curvature of the display, wherein the driving device may control a curvature of a viewing area and a curvature of a background area to be different from each other.Type: ApplicationFiled: May 27, 2016Publication date: May 4, 2017Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kwang Youn KIM, Joon Seok AHN, Seok Woo YONG, Jun-mo YOO, Jung Hwa CHOI
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Publication number: 20170037101Abstract: The present invention relates to a pharmaceutical composition containing, as an active ingredient, chemokine-like samdori2 (Sam2) for preventing and treating a mental disease associated with a brain nervous system. By constructing a Sam2-specific knockout zebrafish (wherein, the Sam 2 is expressed in a habenular nucleus) and finding that, through novel tank, scototaxis, and social cohesion tests, the zebrafish shows significantly higher fear and anxiety behaviors than the control; inhibitory neuron expression in neurons overexpressing Sam2 gene is decreased; and a patient due to sam2 gene loss shows autism and the hyperanxiety symptom, the Samdori2 can be usefully applied as an active ingredient for a pharmaceutical composition for preventing and treating a mental disease associated with a brain nervous system.Type: ApplicationFiled: September 19, 2016Publication date: February 9, 2017Applicant: GHBIO Inc.Inventors: Cheol-Hee Kim, Doo-Sang Park, Jung-Hwa Choi
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Patent number: 9418609Abstract: A display apparatus having a display driving unit on a lower part is provided. The LCD display apparatus includes a signal processing unit which performs video decoding, video scaling, and conversion into high-quality video on an input video; and a driving unit which is disposed closer to a lower end of the LCD display apparatus than to an upper end of the LCD display apparatus, and drives a liquid crystal display (LCD) panel to display a video output from the signal processing unit on the LCD panel.Type: GrantFiled: September 16, 2014Date of Patent: August 16, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventor: Jung-hwa Choi