Patents by Inventor Un-in Choi
Un-in 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: 20170229948Abstract: Disclosed is a single phase brushless direct current motor comprising a stator and a rotor which is rotatably located inside the stator, the stator comprising: a first stator core having a plurality of first core pieces which are formed to be bent from the inside; a second stator core having a plurality of second core pieces which are located between the first core pieces, respectively, and are formed to be bent from the inside; and a bobbin which is coupled between the first stator core and the second stator core, and around which a coil is wound, and the rotor comprising: a rotor body which rotates around a shaft; and a plurality of magnets which are formed on the outer circumferential surface of the rotor body, wherein the first core pieces and the second core pieces have overlapping regions which axially overlap when seen from the shaft.Type: ApplicationFiled: July 21, 2015Publication date: August 10, 2017Applicant: G.E.T. KOREA CO., LTD.Inventors: Young Mok NA, Un Ho CHOI, Sang Yong JUNG
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Publication number: 20170229949Abstract: Disclosed is a single phase brushless direct current motor comprising a stator and a rotor which is rotatably located outside the stator, the stator comprising: a first stator core having a plurality of first core pieces which are formed to be bent from the outside; a second stator core having a plurality of second core pieces which are located between the first core pieces, respectively, and are formed to be bent from the outside; and a bobbin which is coupled between the first stator core and the second stator core, and around which a coil is wound, and the rotor comprising: a cup-shaped rotor body which rotates around a shaft; and a plurality of magnets which are formed on the inner circumferential surface of the rotor body, wherein the first core pieces and the second core pieces have overlapping regions which axially overlap when seen from the magnets.Type: ApplicationFiled: July 21, 2015Publication date: August 10, 2017Applicant: G.E.T. KOREA CO., LTD.Inventors: Young Mok NA, Un Ho CHOI, Sang Yong JUNG
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Patent number: 9129637Abstract: Provided is a disc loading device and optical disc drive using the same. The disc loading device includes a loading roller for loading a disc in a main frame, an eject lever for discharging the disc out of the main frame, and a main slider operating the eject lever, and moving in a direction by a disc emergency ejection pin inserted from outside of the main frame.Type: GrantFiled: November 21, 2012Date of Patent: September 8, 2015Assignee: Toshiba Samsung Storage Technology Korea CorporationInventors: Un-jin Choi, Joung-sug Ko, Sang-yun Baek, Cheol-woong Ahn
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Patent number: 9082446Abstract: Provided are an optical disc drive and method for driving the optical disc drive. The method includes transporting a disc to a chucking position where a spindle is positioned using a loading roller, blocking power transferred from a loading motor to the loading roller, and chucking the disc on the spindle using power from the loading motor. Accordingly, damages to the disc caused by chucking may be prevented.Type: GrantFiled: November 21, 2012Date of Patent: July 14, 2015Assignee: Toshiba Samsung Storage Technology Korea CorporationInventors: Un-Jin Choi, Joung-sug Ko, Sang-yun Baek, Cheol-woong Ahn
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Patent number: 9027040Abstract: Provided is an optical disc drive that may discharge static electricity externally. The optical disc drive may include a step motor that is configured to move an optical pickup back and forth and a cover disposed below the optical pickup. In one aspect, the cover includes an electrostatic discharge mechanism for moving static electricity generated on the step motor through the cover.Type: GrantFiled: December 2, 2013Date of Patent: May 5, 2015Assignee: Toshiba Samsung Storage Technology Korea CorporationInventors: Jung Sug Ko, Sang Yun Baek, Cheol Woong Ahn, Jae Gil Yu, Un Jin Choi
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Publication number: 20150083742Abstract: An apparatus is provided. The apparatus includes a body forming an external shape, a containing unit for containing a pill packet including pills to be taken, a driving assembly provided below the containing unit and applying a force for pushing the pill packet in one direction, a guide bar for providing a transfer path of the pill packet transferred by an operation of the driving assembly, an elevation bar provided above the guide bar and capable of descending or ascending toward the pill packet, a cylinder assembly for allowing the elevation bar to elevate, a discharge box for containing the pills when the pills are separated from the pill packet by the elevation bar, and a first outlet to be an opening of the discharge box.Type: ApplicationFiled: November 6, 2013Publication date: March 26, 2015Applicant: OHSUNG ELECTRONICS CO., LTD.Inventors: Un Ha CHOI, Bo Sung KANG
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Patent number: 8819709Abstract: Provided is a disk loading apparatus which includes a frame base on which a spindle motor is mounted. The apparatus includes a disk loading structure that loads a disk on the spindle motor, a plurality of sliders operating in connection with a loading lever, and a plurality of gears transferring the motive power to the plurality of sliders. The apparatus also includes a plurality of shafts to which the gears are coupled, and a plurality of slider guide walls that guide movement of the plurality of sliders. According to various aspects, the shafts and the slider guide walls are formed integrally with the frame base.Type: GrantFiled: October 18, 2012Date of Patent: August 26, 2014Assignee: Toshiba Samsung Storage Technology Korea CorporationInventors: Joung-sug Ko, Sang-yun Baek, Un-jin Choi, Cheol-woong Ahn
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Publication number: 20140223455Abstract: Provided is an optical disc drive that may discharge static electricity externally. The optical disc drive may include a step motor that is configured to move an optical pickup back and forth and a cover disposed below the optical pickup. In one aspect, the cover includes an electrostatic discharge mechanism for moving static electricity generated on the step motor through the cover.Type: ApplicationFiled: December 2, 2013Publication date: August 7, 2014Inventors: Jung Sug KO, Sang Yun BAEK, Cheol Woong AHN, Jae Gil YU, Un Jin CHOI
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Patent number: 8739192Abstract: A disc loading apparatus includes a frame base, and a sub-frame disposed on the frame base and including a turntable configured to drive a disc. The disc loading apparatus also includes a loading lever disposed on the frame base and configured to load the disc on the turntable. The disc loading apparatus includes an eject lever disposed on the frame base and configured to eject the disc from the turntable to the outside of the frame base, and an eject roller disposed at a leading end of the eject lever and configured to contact an edge of the disc. An elastic skirt portion in the disc loading apparatus includes a skirt, disposed adjacent to the eject roller, and an elastic extension portion extending from the skirt.Type: GrantFiled: August 7, 2012Date of Patent: May 27, 2014Assignee: Toshiba Samsung Storage Technology Korea CorporationInventors: Joung-sug Ko, Sang-yun Baek, Un-jin Choi, Cheol-woong Ahn
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Publication number: 20140115612Abstract: Provided is a disc loading device and optical disc drive using the same. The disc loading device includes a loading roller for loading a disc in a main frame, an eject lever for discharging the disc out of the main frame, and a main slider operating the eject lever, and moving in a direction by a disc emergency ejection pin inserted from outside of the main frame.Type: ApplicationFiled: November 21, 2012Publication date: April 24, 2014Applicant: Toshiba Samsung Storage Technology Korea CorporationInventors: Un-jin Choi, Joung-sug Ko, Sang-yun Baek, Cheol-woong Ahn
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Patent number: 8683499Abstract: A disc loading apparatus is provided. The disc loading apparatus includes a frame base, a spindle motor installed in the frame base, a disc guide wall disposed at one side of the frame base and configured to guide a loading of a disc, a disc loading structure disposed in front of another side of the frame base and disposed parallel to a direction in which the disc enters to load the disc on the spindle motor, a rotational disc centering lever disposed adjacent to the guide wall to center the disc with respect to the spindle motor, and an ejecting lever disposed at a rear side of the frame base and configured to unload the disc loaded on the spindle motor.Type: GrantFiled: May 11, 2012Date of Patent: March 25, 2014Assignee: Toshiba Samsung Storage Technology Korea CorporationInventors: Joung-sug Ko, Sang-yun Baek, Un-jin Choi, Cheol-woong Ahn
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Publication number: 20130212604Abstract: Provided are an optical disc drive and method for driving the optical disc drive. The method includes transporting a disc to a chucking position where a spindle is positioned using a loading roller, blocking power transferred from a loading motor to the loading roller, and chucking the disc on the spindle using power from the loading motor. Accordingly, damages to the disc caused by chucking may be prevented.Type: ApplicationFiled: November 21, 2012Publication date: August 15, 2013Applicant: Toshiba Samsung Storage Technology Korea CorporationInventors: Un-jin Choi, Joung-sug Ko, Sang-yun Baek, Cheol-woong Ahn
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Publication number: 20130132980Abstract: Provided are a disc loading device and an optical disc drive using the same. When a disc is loaded into the optical disc drive, an eject lever and a main slider may be used to facilitate an open/close operation of a door of the optical disc drive. In addition, by shutting off power to a loading roller after loading a disc, the disc is prevented from being damaged by the loading roller while the disc is being chucked.Type: ApplicationFiled: November 7, 2012Publication date: May 23, 2013Inventors: Un-jin Choi, Joung-sug Ko, Sang-yun Baek, Cheol-woong Ahn
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Publication number: 20130104155Abstract: Provided is a disk loading apparatus which includes a frame base on which a spindle motor is mounted. The apparatus includes a disk loading structure that loads a disk on the spindle motor, a plurality of sliders operating in connection with a loading lever, and a plurality of gears transferring the motive power to the plurality of sliders. The apparatus also includes a plurality of shafts to which the gears are coupled, and a plurality of slider guide walls that guide movement of the plurality of sliders. According to various aspects, the shafts and the slider guide walls are formed integrally with the frame base.Type: ApplicationFiled: October 18, 2012Publication date: April 25, 2013Inventors: Joung-sug Ko, Sang-yun Baek, Un-jin Choi, Cheol-woong Ahn
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Publication number: 20130091037Abstract: Disclosed is a method for reselling contents registered in contents selling apparatus by a content reselling apparatus. The method includes: accessing the content selling apparatus based on reseller information of the content reselling apparatus; selecting at least one reselling content in which reselling is allowed from contents registered in the content selling apparatus; receiving and notifying information of the selected reselling content; receiving reselling content information which is requested to be purchased from a user terminal among the notified reselling contents; and transferring purchase request information of the to user terminal to the content selling apparatus.Type: ApplicationFiled: June 14, 2012Publication date: April 11, 2013Applicant: KT CORPORATIONInventors: Kyung-Chan CHA, Un-Hae CHOI, Yu-Ri HONG
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Publication number: 20130047170Abstract: A disc loading apparatus includes a frame base, and a sub-frame disposed on the frame base and including a turntable configured to drive a disc. The disc loading apparatus also includes a loading lever disposed on the frame base and configured to load the disc on the turntable. The disc loading apparatus includes an eject lever disposed on the frame base and configured to eject the disc from the turntable to the outside of the frame base, and an eject roller disposed at a leading end of the eject lever and configured to contact an edge of the disc. An elastic skirt portion in the disc loading apparatus includes a skirt, disposed adjacent to the eject roller, and an elastic extension portion extending from the skirt.Type: ApplicationFiled: August 7, 2012Publication date: February 21, 2013Applicant: TOSHIBA SAMSUNG STORAGE TECHNOLOGY KOREA CORPORATIONInventors: Joung-sug KO, Sang-yun BAEK, Un-jin CHOI, Cheol-woong AHN
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Publication number: 20130007780Abstract: A disc loading apparatus is provided. The disc loading apparatus includes a frame base, a spindle motor installed in the frame base, a disc guide wall disposed at one side of the frame base and configured to guide a loading of a disc, a disc loading structure disposed in front of another side of the frame base and disposed parallel to a direction in which the disc enters to load the disc on the spindle motor, a rotational disc centering lever disposed adjacent to the guide wall to center the disc with respect to the spindle motor, and an ejecting lever disposed at a rear side of the frame base and configured to unload the disc loaded on the spindle motor.Type: ApplicationFiled: May 11, 2012Publication date: January 3, 2013Inventors: Joung-sug Ko, Sang-yun Baek, Un-jin Choi, Cheol-woong Ahn
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Patent number: 8250592Abstract: Provided is an optical disk apparatus in which an interlocking slider engaged with a main slider directly drive an eject lever and a boss for performing a disk chucking operation. The optical disk apparatus includes a housing having a slot to receive a disk, a main unit having a turn table to rotate the disk, the main slider configured to move in first and second directions corresponding to insertion and ejection of the disk, the eject lever configured to eject the disk inserted into the housing through the slot, and the interlocking slider.Type: GrantFiled: April 20, 2009Date of Patent: August 21, 2012Assignee: Toshiba Samsung Storage Technology Korea CorporationInventors: Cheol-woong Ahn, Un-jin Choi, Min-shik Roh, Jeong-hun Yeom, Sung-hun Lee
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Patent number: 8132193Abstract: A disk ejecting unit to manually ejecting a disk and a disk device including the disk ejecting unit are provided. A disk ejecting unit for use in a disk device for recording and/or reproducing data with respect to a disk, includes a driving motor, a slider that moves toward a first position or a second position in response to a driving force of the driving motor, an eject lever to press the disk inserted into the disk device so as to eject the disk where the slider is moved toward the second position, and a gear assembly to transmit the driving force of the driving motor to the slider.Type: GrantFiled: January 16, 2009Date of Patent: March 6, 2012Assignee: Toshiba Samsung Storage Technology Korea CorporationInventors: Cheol-woong Ahn, Un-jin Choi, Jeong-hun Yeom, Sung-hun Lee
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Patent number: 7840972Abstract: The optical disc device includes a main unit rotating a turntable when a disc is coupled to the turntable and including an optical pick-up unit writing/reading data to/from the disc; a lever member guiding the disc to load the disc to a position at which a center of the disc is aligned with a center of the turntable and reversely guiding the disc to unload the disc, the lever member being capable of loading/unloading discs having various diameters; and a driving unit actuating the lever member. The method of controlling the optical disc device includes detecting a diameter of a disc; loading the disc to a position at which a center of the disc is aligned with the center of the turntable; coupling the disc to the turntable; and moving the lever member away from the disc to allow writing/reading data to/from the disc to be performed.Type: GrantFiled: February 6, 2007Date of Patent: November 23, 2010Assignee: Toshiba Samsung Storage Technology Korea CorporationInventors: Cheol-woong Ahn, Jae-hyun Yoon, Un-jin Choi, Jeong-hun Yeom, Myong-chun Lee