Patents by Inventor Sang-yun Baek
Sang-yun Baek 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: 9335821Abstract: The present disclosure provides a method and device for controlling a haptic interface, which can maintain stability and enhance transparency by restricting force caused by unnecessary energy generated in the sample and hold processes while controlling the haptic interface. The method includes detecting a physical parameter based on driving of the haptic interface; calculating a reaction to be sent from a virtual environment to the haptic interface according to the physical parameter; calculating a bounding parameter satisfying a condition that a haptic system is passive, using the physical parameter and the reaction; adjusting the bounding parameter to be within a preset range; calculating force to be output to the haptic interface according to the adjusted bounding parameter; and applying the calculated force to the haptic interface.Type: GrantFiled: May 18, 2012Date of Patent: May 10, 2016Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Je Ha Ryu, Jong Phil Kim, Sang Yun Baek
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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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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: 20130088440Abstract: The present disclosure provides a method and device for controlling a haptic interface, which can maintain stability and enhance transparency by restricting force caused by unnecessary energy generated in the sample and hold processes while controlling the haptic interface. The method includes detecting a physical parameter based on driving of the haptic interface; calculating a reaction to be sent from a virtual environment to the haptic interface according to the physical parameter; calculating a bounding parameter satisfying a condition that a haptic system is passive, using the physical parameter and the reaction; adjusting the bounding parameter to be within a preset range; calculating force to be output to the haptic interface according to the adjusted bounding parameter; and applying the calculated force to the haptic interface.Type: ApplicationFiled: May 18, 2012Publication date: April 11, 2013Applicant: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Je Ha RYU, Jong Phil KIM, Sang Yun BAEK
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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