Patents by Inventor Gi Young CHOI
Gi Young 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).
-
Publication number: 20240128552Abstract: A pouch-type battery case according to an embodiment of the invention may accommodate an electrode assembly, in which electrodes and separators are alternately stacked. The pouch-type battery case may include: a pair of recess parts, each of which has a recessed shape; a pair of terraces that are disposed around the pair of recess parts and are inclined downward in a direction closer to each other in a state; in which the battery case is unfolded; and a bridge disposed between the pair of recess parts, configured to connect the pair of recess parts to each other, having a pair of connection surfaces formed to be inclined upward from a bottom surface of each of the pair of recess parts in a direction closer to each other. In the state in which the battery case is unfolded, an angle formed by the pair of terraces may be an obtuse angle.Type: ApplicationFiled: April 5, 2022Publication date: April 18, 2024Applicant: LG Energy Solution, Ltd.Inventors: Hyun Beom Kim, Min Kyu Min, Kyu Hyun Choi, Gi Man Kim, Dae Hong Kim, Se Young Oh
-
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: 11961177Abstract: A method of controlling a display device includes rendering a plurality of viewpoint images, generating a plurality of sub-images based on the plurality of viewpoint images and a plurality of mapping pattern images corresponding to the plurality of viewpoint images, generating a single light-field image based on the plurality of sub-images, and outputting the single light-field image.Type: GrantFiled: October 4, 2021Date of Patent: April 16, 2024Assignees: SAMSUNG DISPLAY CO., LTD., MAXST CO., LTD.Inventors: Rang Kyun Mok, Ji Young Choi, Gi Seok Kwon, Jae Joong Kwon, Beom Shik Kim, Jae Wan Park
-
Publication number: 20230395917Abstract: A battery module of the present disclosure includes: a cell stack including a plurality of battery cells; a first end plate and a second end plate respectively covering a top surface and a bottom surface of the cell stack; a first upper reinforcing plate and a second upper reinforcing plate located on the first end plate and respectively extending from a side and the other side of the first end plate in a longitudinal direction of the first end plate toward a central portion; a first lower reinforcing plate and a second lower reinforcing plate located on the second end plate and respectively extending from a side and the other side of the second end plate in a longitudinal direction of the second end plate toward a central portion; a first fastening bolt located on a side of the cell stack in a longitudinal direction of the cell stack, and passing through the first upper reinforcing plate, the first end plate, the second end plate, and the first lower reinforcing plate; and a second fastening bolt located onType: ApplicationFiled: December 24, 2021Publication date: December 7, 2023Inventors: Dong-Wook KIM, Jae-Yeong KIM, Gi-Young CHOI
-
Publication number: 20220393269Abstract: A battery module and a battery pack including same, have improved fastening of a cooling plate through the use of the combination of a reinforcement beam and welding in the fastening of the cooling plate, and thus detachment of the cooling plate due to swelling of a battery cell or due to external shocks is effectively prevented.Type: ApplicationFiled: June 23, 2021Publication date: December 8, 2022Applicant: LG ENERGY SOLUTION, LTD.Inventors: Gi Young CHOI, Su Hang LEE, Jae Yeong KIM, YONG IL KIM, Dong Wook KIM
-
Patent number: 9705444Abstract: A device for controlling an electric motor is provided. The device includes: an inverter supplying a current to an electric motor; a current sensor sensing a current supplied from the inverter to the electric motor; and a control unit enabling the current to be supplied from the inverter to the electric motor, obtaining first and second offset values sensed from the current sensor at a plurality of times, comparing the plurality of offset values obtained, and updating the first offset value to the second offset value according to a result of comparing the offset values.Type: GrantFiled: January 14, 2015Date of Patent: July 11, 2017Assignee: LSIS CO., LTD.Inventor: Gi Young Choi
-
Patent number: 9400303Abstract: Provided is a method of detecting a state of a power cable in an inverter system. The method includes detecting a direct current (DC)-link voltage value of a DC-link capacitor included in an inverter, detecting a battery voltage value of a battery supplying a DC power to the inverter, comparing the DC-link voltage value with the battery voltage value, and determining the state of the power cable connecting the inverter to the battery to be abnormal when a difference between the DC-link voltage value and the battery voltage value is out of a preset range.Type: GrantFiled: February 26, 2014Date of Patent: July 26, 2016Assignee: LSIS CO., LTD.Inventor: Gi Young Choi
-
Patent number: 9354276Abstract: Disclosed is an apparatus and method for detecting failure of a switching device in an inverter, the method including detecting a maximum value and a minimum value of a phase current inputted into a motor from synchronous angle information of the motor through a switching device in a predetermined leg of the inverter unit, and detecting failure of the switching device of the leg through an asymmetry ratio of the phase current.Type: GrantFiled: December 26, 2012Date of Patent: May 31, 2016Assignee: LSIS CO., LTD.Inventor: Gi Young Choi
-
Publication number: 20150214868Abstract: An apparatus for sensing an overcurrent is provided. The apparatus for sensing an overcurrent includes an inverter converting a direct current (DC) into an alternating current (AC) and supplying the AC to a motor to allow the motor to operate; a current sensing unit provided on a connection between the inverter and the motor and measuring an overcurrent of a control current value output from the inverter; and a control unit checking with the current sensing unit whether the overcurrent is sensed, and determining whether to operate the inverter, wherein the control unit creating an interrupt service routine (ISR) for checking overcurrent information and checks the overcurrent information according to a created ISR, when the overcurrent is sensed through the current sensing unit.Type: ApplicationFiled: January 16, 2015Publication date: July 30, 2015Applicant: LSIS CO., LTD.Inventor: Gi Young CHOI
-
Publication number: 20150214881Abstract: A device for controlling an electric motor is provided. The device includes: an inverter supplying a current to an electric motor; a current sensor sensing a current supplied from the inverter to the electric motor; and a control unit enabling the current to be supplied from the inverter to the electric motor, obtaining first and second offset values sensed from the current sensor at a plurality of times, comparing the plurality of offset values obtained, and updating the first offset value to the second offset value according to a result of comparing the offset values.Type: ApplicationFiled: January 14, 2015Publication date: July 30, 2015Applicant: LSIS CO., LTD.Inventor: Gi Young CHOI
-
Patent number: 8981701Abstract: Provided is an apparatus for compensating offset of a current sensor detecting a motor current supplied by an inverter for PWM (Pulse Width Modulation) control of a motor, the apparatus including a current controller providing a PWM signal generated based on the motor current detected by the current sensor to the inverter, calculating an offset using the motor current detected by the current sensor in response to presence and absence of the PWM control of the motor, or offset-compensating the motor current detected by the current sensor.Type: GrantFiled: December 11, 2012Date of Patent: March 17, 2015Assignee: LSIS Co., Ltd.Inventor: Gi Young Choi
-
Publication number: 20140354297Abstract: Provided is a method of detecting a state of a power cable of an inverter system. The method includes obtaining a value of a phase current supplied to a motor through the power cable according to a preset period, generating a mobile window having a certain size with respect to a phase-current value obtained for each period and obtaining a mobile window operation value by using the phase-current value included in the generated mobile window, comparing the obtained mobile window operation value with a preset reference value, and detecting whether the power cable is abnormal, according to a result of the comparing.Type: ApplicationFiled: February 26, 2014Publication date: December 4, 2014Applicant: LSIS CO., LTD.Inventor: Gi Young CHOI
-
Publication number: 20140340097Abstract: Provided is a method of detecting a state of a power cable in an inverter system. The method includes detecting a direct current (DC)-link voltage value of a DC-link capacitor included in an inverter, detecting a battery voltage value of a battery supplying a DC power to the inverter, comparing the DC-link voltage value with the battery voltage value, and determining the state of the power cable connecting the inverter to the battery to be abnormal when a difference between the DC-link voltage value and the battery voltage value is out of a preset range.Type: ApplicationFiled: February 26, 2014Publication date: November 20, 2014Applicant: LSIS CO., LTD.Inventor: Gi Young CHOI
-
Patent number: 8508162Abstract: Disclosed is a system and a method for controlling torque of induction motor in electric vehicle. The system and method for controlling torque of induction motor in electric vehicle according to the present disclosure has an advantageous effect in that torque control problems caused by saturation of magnetic flux, parameters of induction motor and changes in battery voltages during control of torque in the induction motor can be solved using a look-up table (a type of data table), thereby enhancing accuracy in torque control and improving travel performance and fuel efficiency of the electric vehicle.Type: GrantFiled: December 22, 2011Date of Patent: August 13, 2013Assignee: LSIS Co., Ltd.Inventors: Gi Young Choi, Sun Woo Lee
-
Publication number: 20120169268Abstract: Disclosed is a system and a method for controlling torque of induction motor in electric vehicle. The system and method for controlling torque of induction motor in electric vehicle according to the present disclosure has an advantageous effect in that torque control problems caused by saturation of magnetic flux, parameters of induction motor and changes in battery voltages during control of torque in the induction motor can be solved using a look-up table (a type of data table), thereby enhancing accuracy in torque control and improving travel performance and fuel efficiency of the electric vehicle.Type: ApplicationFiled: December 22, 2011Publication date: July 5, 2012Applicant: LSIS CO., LTDInventors: Gi Young CHOI, Sun Woo LEE