Patents by Inventor Dong Hun Yu
Dong Hun Yu 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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Patent number: 10197891Abstract: An electronic device is provided. The electronic device includes an image sensor for capturing an image; a barrel including a lens group arranged about a first axis perpendicular to the image sensor, a first housing fixed to the barrel; a second housing disposed under the first housing and coupled to the first housing; at least one magnetic substance disposed at one side of the first housing; and at least one coil disposed at one side of the second housing. When power is supplied to the at least one coil, electromagnetic force is generated between the at least one coil and the at least one magnetic substance. And if the electromagnetic force is generated, the first housing rotates clockwise or counterclockwise, and the barrel moves along the first axis.Type: GrantFiled: August 7, 2017Date of Patent: February 5, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Hyung Jin Rho, Byung Kwon Kang, Young Bok Yu, Sung Wook Choi, Dong Hun Yu, Ki Huk Lee
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Publication number: 20180059512Abstract: An electronic device is provided. The electronic device includes an image sensor for capturing an image; a barrel including a lens group arranged about a first axis perpendicular to the image sensor, a first housing fixed to the barrel; a second housing disposed under the first housing and coupled to the first housing; at least one magnetic substance disposed at one side of the first housing; and at least one coil disposed at one side of the second housing. When power is supplied to the at least one coil, electromagnetic force is generated between the at least one coil and the at least one magnetic substance. And if the electromagnetic force is generated, the first housing rotates clockwise or counterclockwise, and the barrel moves along the first axis.Type: ApplicationFiled: August 7, 2017Publication date: March 1, 2018Inventors: Hyung Jin RHO, Byung Kwon KANG, Young Bok YU, Sung Wook CHOI, Dong Hun YU, Ki Huk LEE
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Patent number: 9804408Abstract: A camera lens module includes a lens unit, an automatic focus actuator including a first flexible circuit board. The first flexible circuit board has a plurality of first coil windings and a first Hall sensor. The plurality of first coil windings actuates the lens unit along an optical axis. An image stabilization actuator includes an image stabilization carrier having a plurality of magnets facing the first coil windings and a second flexible circuit board having a plurality of second coil windings facing respective lower surfaces of the magnets and a second Hall sensor. The camera lens module includes a base coupled with the image stabilization actuator under the image stabilization actuator, and a plurality of rollers disposed on the base and configured to rollably move the image stabilization actuator.Type: GrantFiled: September 23, 2015Date of Patent: October 31, 2017Assignee: Samsung Electronics Co., Ltd.Inventors: Hyung-Jin Rho, Se-Won Kim, Young-Bok Yu, Dong-Hun Yu
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Publication number: 20160085086Abstract: A camera lens module includes a lens unit, an automatic focus actuator including a first flexible circuit board. The first flexible circuit board has a plurality of first coil windings and a first Hall sensor. The plurality of first coil windings actuates the lens unit along an optical axis. An image stabilization actuator includes an image stabilization carrier having a plurality of magnets facing the first coil windings and a second flexible circuit board having a plurality of second coil windings facing respective lower surfaces of the magnets and a second Hall sensor. The camera lens module includes a base coupled with the image stabilization actuator under the image stabilization actuator, and a plurality of rollers disposed on the base and configured to rollably move the image stabilization actuator.Type: ApplicationFiled: September 23, 2015Publication date: March 24, 2016Inventors: Hyung-Jin Rho, Se-Won Kim, Young-Bok Yu, Dong-Hun Yu
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Patent number: 8458311Abstract: A system for managing a queue order may receive queue order registration requests from a plurality of user terminals, generate queue order information of the plurality of user terminals, and broadcast, when the queue order information changes, notification information about the change of the queue order information.Type: GrantFiled: November 21, 2009Date of Patent: June 4, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Tae Ho Jang, Jun Hyeong Kim, Paul Barom Jeon, Dong Hun Yu
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Patent number: 7929346Abstract: Example embodiments may relate to a method and an apparatus for reading data stored in a memory, for example, providing a method and an apparatus for controlling a reference voltage based on an error of the stored data. Example embodiments may provide a memory data detecting apparatus including a first voltage comparator to compare a threshold voltage of a memory cell with a first reference voltage, a first data determiner to determine a value of at least one data bit stored in the memory cell according to a result of the comparison, an error verifier to verify whether an error occurs in the determined value, a reference voltage determiner to determine a second reference voltage that is lower than the first reference voltage based on a result of the verification, and a second data determiner to re-determine the value of the data based on the determined second reference voltage.Type: GrantFiled: July 10, 2008Date of Patent: April 19, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Dong Hun Yu, Kyoung Lae Cho, Dong Hyuk Chae, Jun Jin Kong, Jae Hong Kim, Seung-Hwan Song
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Patent number: 7872909Abstract: Provided are memory devices and memory data read methods. A method device may include: a multi-bit cell array; a decision unit that may detect threshold voltages of multi-bit cells of the multi-bit cell array to decide first data from the detected threshold voltages, using a first decision value; an error detector that may detect an error bit of the first data; and a determination unit that may determine whether the decision unit decides second data from the detected threshold voltages using a second decision value, based on a number of detected error bits, the second decision value being different from the first decision value. Through this, it is possible to reduce time spent for reading data stored in the multi-bit cell.Type: GrantFiled: July 25, 2008Date of Patent: January 18, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Seung-Hwan Song, Heeseok Eun, Dong Hun Yu, Jun Jin Kong
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Publication number: 20100191842Abstract: A system for managing a queue order may receive queue order registration requests from a plurality of user terminals, generate queue order information of the plurality of user terminals, and broadcast, when the queue order information changes, notification information about the change of the queue order information.Type: ApplicationFiled: November 21, 2009Publication date: July 29, 2010Inventors: Tae Ho JANG, Jun Hyeong Kim, Paul Barom Jeon, Dong Hun Yu
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Patent number: 7764543Abstract: A memory device and a method of reading multi-bit data stored in a multi-bit cell array may be provided. The memory device may include a multi-bit cell array including a least one memory page with each memory page having a plurality of multi-bit cells, and a determination unit to divide the plurality of multi-bit cells into a first group and second group. The first group may include multi-bit cells with a threshold voltage higher than a reference voltage. The second group may include multi-bit cells with a threshold voltage lower than the reference voltage. The determination unit may sequentially update the first group and second group while changing the reference voltage.Type: GrantFiled: July 18, 2008Date of Patent: July 27, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Kyoung Lae Cho, Dong Hun Yu, Jun Jin Kong, Seung-Hwan Song, Yoon Dong Park, Jong Han Kim, Young Hwan Lee
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Publication number: 20090207671Abstract: Example embodiments may relate to a method and an apparatus for reading data stored in a memory, for example, providing a method and an apparatus for controlling a reference voltage based on an error of the stored data. Example embodiments may provide a memory data detecting apparatus including a first voltage comparator to compare a threshold voltage of a memory cell with a first reference voltage, a first data determiner to determine a value of at least one data bit stored in the memory cell according to a result of the comparison, an error verifier to verify whether an error occurs in the determined value, a reference voltage determiner to determine a second reference voltage that is lower than the first reference voltage based on a result of the verification, and a second data determiner to re-determine the value of the data based on the determined second reference voltage.Type: ApplicationFiled: July 10, 2008Publication date: August 20, 2009Inventors: Dong Hun Yu, Kyoung Lae Cho, Dong Hyuk Chae, Jun Jin Kong, Jae Hong Kim, Seung-Hwan Song
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Publication number: 20090207659Abstract: Provided are memory devices and memory data read methods. A method device may include: a multi-bit cell array; a decision unit that may detect threshold voltages of multi-bit cells of the multi-bit cell array to decide first data from the detected threshold voltages, using a first decision value; an error detector that may detect an error bit of the first data; and a determination unit that may determine whether the decision unit decides second data from the detected threshold voltages using a second decision value, based on a number of detected error bits, the second decision value being different from the first decision value. Through this, it is possible to reduce time spent for reading data stored in the multi-bit cell.Type: ApplicationFiled: July 25, 2008Publication date: August 20, 2009Inventors: Seung-Hwan Song, Heeseok Eun, Dong Hun Yu, Jun Jin Kong
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Publication number: 20090190396Abstract: A memory device and a method of reading multi-bit data stored in a multi-bit cell array may be provided. The memory device may include a multi-bit cell array including a least one memory page with each memory page having a plurality of multi-bit cells, and a determination unit to divide the plurality of multi-bit cells into a first group and second group. The first group may include multi-bit cells with a threshold voltage higher than a reference voltage. The second group may include multi-bit cells with a threshold voltage lower than the reference voltage. The determination unit may sequentially update the first group and second group while changing the reference voltage.Type: ApplicationFiled: July 18, 2008Publication date: July 30, 2009Inventors: Kyoung Lae Cho, Dong Hun Yu, Jun Jin Kong, Seung-Hwan Song, Yoon Dong Park, Jong Han Kim, Young Hwan Lee