Patents by Inventor Young-jun Ahn
Young-jun Ahn 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: 20240153831Abstract: An apparatus and method for measuring air currents on the surface of a substrate, which can accurately measure the magnitude and direction of air currents on the surface of a wafer with wafer-type air current measurement sensors, are provided. The apparatus includes: a first air current measurement module measuring a magnitude of air currents on a surface of a first substrate, which is processed in accordance with a semiconductor manufacturing process; a second air current measurement module measuring a movement direction of the air currents; and a power module supplying power to the first and second air current measurement modules, wherein the first air current measurement module, the second air current measurement module, and the power module are mounted on a second substrate, which has the same shape as the first substrate.Type: ApplicationFiled: October 19, 2023Publication date: May 9, 2024Inventors: Yong Jun SEO, Su Jin CHAE, Sang Hyun SON, Sang Min HA, Young Sik BANG, Jeong Mo HWANG, Dong Ok AHN
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Publication number: 20240149109Abstract: A knee joint rehabilitation apparatus for a wheelchair includes a rehabilitation apparatus frame having a height corresponding to a length of each of legs of a patient sitting on the wheelchair; an upper leg support disposed at an upper end of the rehabilitation apparatus frame and supporting upper legs of the patient thereon while the patient is sitting on the wheelchair; a lower leg support pivotably connected to the upper leg support, wherein the lower legs of the patient are seated and supported on the lower leg support; and an exercise control unit disposed on the rehabilitation apparatus frame and configured to allow the lower leg support to pivot around a connection portion between the lower leg support and the upper leg support such that the patient performs rehabilitation exercise of the knee joint thereof while sitting on the wheelchair.Type: ApplicationFiled: January 10, 2022Publication date: May 9, 2024Applicant: HEXARHUMANCARE CO., LTDInventors: Chang Soo HAN, Ho Jun KIM, Su Hyu PARK, Young Hoon JI, Jeong Ho CHO, Byung Gab RYU, Jeong Gyu PARK, Dong Eun CHOI, Cheol Woong AHN
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Publication number: 20240136844Abstract: Disclosed is an apparatus and method for controlling step charging of a secondary battery. A charging control unit determines a SOC, an OCV and a polarization voltage of the secondary battery, determines an OCV deviation corresponding to a difference between the OCV and a predefined minimum OCV value, determines a correction factor corresponding to the polarization voltage and the OCV deviation, determines a look-up SOC by correcting the SOC according to the correction factor, determines the magnitude of a charging current corresponding to the look-up SOC, and provides the determined charging current to a charging device.Type: ApplicationFiled: December 5, 2023Publication date: April 25, 2024Applicant: LG ENERGY SOLUTION, LTD.Inventors: Jin-Hyung LIM, Young-Jin KIM, Gi-Min NAM, Hyoung Jun AHN, Kyu-Chul LEE, Won-Tae JOE
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Patent number: 11955697Abstract: An antenna device according to an embodiment of the present invention includes a dielectric layer, a radiator and a dummy electrode. The radiator is disposed on the upper surface of the dielectric layer. The radiator includes a first mesh structure, and the first mesh structure includes a first antenna electrode line and a second antenna electrode line which cross each other. The dummy electrode is spaced apart from the radiator by the separation region on the upper surface of the dielectric layer. The dummy electrode includes a second mesh structure, and the second mesh structure includes a first dummy electrode line and a second dummy electrode line which cross each other. A spacing distance between the first dummy electrode line and the radiator is different from a spacing distance between the second dummy electrode line and the radiator at the separation region.Type: GrantFiled: October 13, 2021Date of Patent: April 9, 2024Assignee: DONGWOO FINE-CHEM CO., LTD.Inventors: Young Jun Lee, Han Sub Ryu, Gi Hwan Ahn
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Publication number: 20240113403Abstract: The present disclosure relates to an electrolyte injection system, and the electrolyte injection system is a system for injecting an electrolyte solution into a pouch in which an electrode assembly is embedded, the electrolyte injection system comprising: an injection pipe for injecting an electrolyte solution; an electrolyte solution supply portion supplying an electrolyte solution; and a manifold portion connecting an injection pipe and an electrolyte solution supply portion to prevent a reverse flow of the electrolyte solution and ensure precision of injection amount so that a large amount of electrolyte solution may be accurately and rapidly injected.Type: ApplicationFiled: July 27, 2023Publication date: April 4, 2024Inventors: Jae Min RYU, Sang Jun PARK, Kang San KIM, Ji Eun AHN, Young Rae OH
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Publication number: 20240076127Abstract: Provided is a ceiling storage system capable of correcting a working position and constantly checking stability of a structure by detecting an amount of change in a facility. According to the ceiling storage system, a transport vehicle moves to an upper portion of a first storage area of a plurality of storage areas in a state of gripping an article, and the transport vehicle measures a first distance value between the transport vehicle and the first storage area using a distance sensor and measures a relative position value between the transport vehicle and the first storage area using a vision sensor, before unloading the article from the first storage area.Type: ApplicationFiled: May 23, 2023Publication date: March 7, 2024Inventors: Sang Kyung LEE, Seung Gyu KANG, Hyun Jae KANG, Young Wook KIM, Sang A BANG, Yong-Jun AHN, Min Kyun LEE, Hyun Woo LEE, Jeong Hun LIM, Jun Hyuk CHANG
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Patent number: 7136329Abstract: Provided are a method and apparatus for canceling noise from a track cross signal, a method for controlling an optical disc drive, an optical disc drive, and an optical disc reproducing apparatus. The method for removing noise from a track cross signal includes (a) removing noise from the track cross signal by binarizing the track cross signal with reference to hysteresis set values that are determined according to a command speed for a tracking actuator; and (b) removing glitch noise from the binarized track cross signal based on a predetermined time value. Accordingly, it is possible to effective remove noise to obtain information regarding the precise speed and position of a desired track.Type: GrantFiled: December 4, 2002Date of Patent: November 14, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Hyeong-deok Yoon, Young-jun Ahn
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Patent number: 7042812Abstract: A method and apparatus for canceling noise from track cross signal includes binarizing the track cross signal with reference to at least two reference values, and removing noise from the binarized track cross signal based on a command speed according to which a tracking actuator moves a pickup. Accordingly, it is possible to remove noise from a track cross signal so as to obtain information regarding precise speed of track searching or position on the track, irrespective of the searching speed.Type: GrantFiled: January 22, 2003Date of Patent: May 9, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Hyeong-deok Yoon, Young-jun Ahn
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Patent number: 6788230Abstract: A multi-channel analog/digital (A/D) converter and a system includes a programmable memory on which a channel selection order is recorded, a channel selection unit which selects one of multiple channels according to the channel selection order recorded on the programmable memory, and a converting unit which converts an analog signal of the selected channel into digital data. With the A/D converter, a channel selection order and a sampling rate can be changed without changing the setup of hardware, and time delay can be reduced.Type: GrantFiled: January 24, 2003Date of Patent: September 7, 2004Assignee: Samsung Electronics Co., Ltd.Inventor: Young-jun Ahn
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Publication number: 20040141428Abstract: A method and apparatus for canceling noise from track cross signal includes binarizing the track cross signal with reference to at least two reference values, and removing noise from the binarized track cross signal based on a command speed according to which a tracking actuator moves a pickup. Accordingly, it is possible to remove noise from a track cross signal so as to obtain information regarding precise speed of track searching or position on the track, irrespective of the searching speed.Type: ApplicationFiled: January 22, 2003Publication date: July 22, 2004Applicant: Samsung Electronics Co., Ltd.Inventors: Hyeong-Deok Yoon, Young-Jun Ahn
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Publication number: 20030164783Abstract: A multi-channel analog/digital (A/D) converter and a system includes a programmable memory on which a channel selection order is recorded, a channel selection unit which selects one of multiple channels according to the channel selection order recorded on the programmable memory, and a converting unit which converts an analog signal of the selected channel into digital data. With the A/D converter, a channel selection order and a sampling rate can be changed without changing the setup of hardware, and time delay can be reduced.Type: ApplicationFiled: January 24, 2003Publication date: September 4, 2003Applicant: Samsung Electronics, Co., Ltd.Inventor: Young-jun Ahn
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Publication number: 20030156505Abstract: Provided are a method and apparatus for canceling noise from a track cross signal, a method for controlling an optical disc drive, an optical disc drive, and an optical disc reproducing apparatus. The method for removing noise from a track cross signal includes (a) removing noise from the track cross signal by binarizing the track cross signal with reference to hysteresis set values that are determined according to a command speed for a tracking actuator; and (b) removing glitch noise from the binarized track cross signal based on a predetermined time value. Accordingly, it is possible to effective remove noise to obtain information regarding the precise speed and position of a desired track.Type: ApplicationFiled: December 4, 2002Publication date: August 21, 2003Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyeong-deok Yoon, Young-jun Ahn
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Patent number: 6505226Abstract: A parallel adder of the present invention operates at high speed and is reduced in size. The parallel adder outputs a carry signal from an inverter and a NAND-gate/NOR-gate to more rapidly generate the carry signal and selects a pass transistor after being passed through the NAND-gate/NOR-gate to reduce a layout surface. The parallel adder includes first and second full adders, each having a logic combination unit, a buffer, a carry output unit, an output controller unit and a sum output unit. The logic combination unit performs logical operations between input signals to generate a first control signal. The buffer inverts a carry input signal in accordance with the control of the logic combination unit, and the carry output unit generates a carry signal in accordance with the control of the logic combination unit to output the output signal from the buffer as a carry signal. The output controller logically combines the output signal from the logic combination unit and generates a second control signal.Type: GrantFiled: September 2, 1997Date of Patent: January 7, 2003Assignee: Hyundai Electronics Industries Co., Ltd.Inventor: Young-Jun Ahn
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Patent number: 5977623Abstract: A semiconductor package and a socket thereof that are easily adaptable to a multiple pin structure includes a nonconductive base layer, a plurality of conductive metallic leads that extend vertically through the base layer, a wiring layer in which a pattern of fine metallic wires are formed to electrically couple to the conductive metallic leads to a semiconductor chip mounted in the package, a recess formed in the central portion of the wiring layer, and a cover for closing the upper portion of the recess. A semiconductor chip is mounted on the bottom portion of the recess, and conductive wires electrically couple the semiconductor chip to the fine metallic wires of the wiring layer.Type: GrantFiled: August 28, 1997Date of Patent: November 2, 1999Assignee: LG Semicon Co., Ltd.Inventor: Young Jun Ahn