Patents by Inventor Ji-hoon Sung
Ji-hoon Sung 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: 20240064968Abstract: Provided is a semiconductor memory device comprising an active region extending in a cell isolation layer, wherein the active region includes a first region and a second region; a bit line intersects the active region; a bit line contact between a substrate and the bit line, wherein the bit line contact is electrically connected to the first region; a bit line spacer that is on side surfaces of the bit line and the bit line contact; a node pad on a lateral side of the bit line spacer, wherein the node pad is electrically connected to the second region; a storage contact that is on the node pad and on a side surface of the bit line spacer, wherein the storage contact includes a first part having a first width and a second part having a second width different from the first width.Type: ApplicationFiled: May 22, 2023Publication date: February 22, 2024Inventors: Woo Young CHOI, Hui-Jung KIM, Ji Hoon SUNG, Ga Eun CHOI, Sang Kyu SUN
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Patent number: 8973210Abstract: Provided is a robot cleaner. In an embodiment, the robot cleaner for avoiding obstacles and sucking foreign materials using a plurality of sensors and a suction motor is characterized in that a drive suppression unit for detecting obstacles having a corresponding height is integrated with a base for forming a lower portion of a main body in order to not climb obstacles of a constant height during a driving period of the robot cleaner. The present disclosure according to the embodiment improves drive stability of the robot cleaner by sensing a threshold in erroneous state of the sensor for sensing the threshold.Type: GrantFiled: June 30, 2009Date of Patent: March 10, 2015Assignee: LG Electronics Inc.Inventors: Sung-Guen Kim, In-Bo Shim, Byung-Doo Yim, Ji-Hoon Sung, Bong-Ju Kim
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Patent number: 8874268Abstract: Provided is a robot cleaner, and more particularly to a robot cleaner which detest whether a foreign material storage unit is separated. The robot cleaner includes a main body including a suction motor, a foreign material storage unit separably disposed within the main body, the foreign material storage unit storing foreign materials contained in sucked air, a foreign material cover for selectively shielding one side of the foreign material storage unit, and a detection unit for detecting whether the foreign material cover is opened.Type: GrantFiled: July 6, 2009Date of Patent: October 28, 2014Assignee: LG Electronics Inc.Inventors: Bong-Ju Kim, In-Bo Shim, Ji-Hoon Sung, Byung-Doo Yim, Sung-Guen Kim
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Patent number: 8832902Abstract: According to an embodiment of the present disclosure, an installation structure for an agitator installed in a dust suction unit of a robot cleaner to scatter foreign substances distributed in a working area comprises: a holder which is connected to a driving motor for providing a torque to the agitator and has a part exposed to the inside of the dust suction unit; and a fixing shaft for forming a rotation shaft of the agitator and having a shape of a polygonal pillar or a shape of a pillar including at least one projection, wherein a shaft insertion part is formed in the holder, has a dented shape corresponding to the shape of the fixing shaft, and can be engaged and rotated with the fixing shaft while the fixing shaft is inserted into and installed at the holder. According to an embodiment of the present disclosure, the easy separation and installation of the agitator and the enablement of simultaneous rotation of the agitator and a side brush can improve user satisfaction.Type: GrantFiled: June 30, 2009Date of Patent: September 16, 2014Assignee: LG Electronics Inc.Inventors: Sung-Guen Kim, In-Bo Shim, Byung-Doo Yim, Ji-Hoon Sung, Bong-Ju Kim
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Patent number: 8825256Abstract: A charging device of a robot cleaner is provided. The charging device of a robot cleaner according to the embodiment includes at least one cover forming an appearance of the charging device, a base which is coupled with the cover and includes a terminal unit for charging the robot cleaner, an induction signal generating unit disposed at a side of the cover or the base to transmit a return induction signal to the robot cleaner, and an induction signal guide member disposed at a side of the induction signal generating unit to enhance a docking performance of the robot cleaner by improving linearity of the induction signal. The charging device according to the embodiment can guide the path for the return of the robot cleaner and recharge the robot cleaner stably.Type: GrantFiled: June 30, 2009Date of Patent: September 2, 2014Assignee: LG Electronics Inc.Inventors: Bong-Ju Kim, In-Bo Shim, Ji-Hoon Sung, Byung-Doo Yim, Sung-Guen Kim
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Patent number: 8732901Abstract: Provided is a robot cleaner, and more particularly to a robot cleaner for shielding particularly an air inlet of a foreign material storage unit. The robot cleaner includes a main body including a drive unit for providing a suction force, a main cover for shielding a side of the main body, a foreign material storage unit separably disposed on the main cover, the foreign material storage unit having an air inlet for introducing air containing foreign materials, a foreign material cover disposed on the main cover, the foreign material cover selectively shielding a side of the foreign material storage unit, and a shield member disposed on the foreign material storage unit, the shield member selectively shielding the air inlet.Type: GrantFiled: July 6, 2009Date of Patent: May 27, 2014Assignee: LG Electronics Inc.Inventors: In-Bo Shim, Sung-Guen Kim, Byung-Doo Yim, Bong-Ju Kim, Ji-Hoon Sung
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Patent number: 8635371Abstract: A method and apparatus for processing a timestamp using signature information on a physical layer is provided. The timestamp processing terminal uses a pseudo-random binary sequence to assign signature information to a message which is to be sent to another terminal, and verifies the signature information on a physical layer. The signature information is used to identify the message as a sync message. Accordingly, it is possible to precisely process the timestamp.Type: GrantFiled: December 11, 2009Date of Patent: January 21, 2014Assignees: Electronics and Telecommunications Research Institute, Korea Advanced Institute of Science & TechnologyInventors: Seung-hwan Kim, Je-soo Ko, June-koo Rhee, Kyu-sang Lee, Chan-kyun Lee, Ji-hoon Sung
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Publication number: 20120143428Abstract: A charging device of a robot cleaner is provided. The charging device of a robot cleaner according to the embodiment includes at least one cover forming an appearance of the charging device, a base which is coupled with the cover and includes a terminal unit for charging the robot cleaner, an induction signal generating unit disposed at a side of the cover or the base to transmit a return induction signal to the robot cleaner, and an induction signal guide member disposed at a side of the induction signal generating unit to enhance a docking performance of the robot cleaner by improving linearity of the induction signal. The charging device according to the embodiment can guide the path for the return of the robot cleaner and recharge the robot cleaner stably.Type: ApplicationFiled: June 30, 2009Publication date: June 7, 2012Inventors: Bong-Ju Kim, In-Bo Shim, Ji-Hoon Sung, Byung-Doo Yim, Sung-Guen Kim
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Publication number: 20120090133Abstract: According to an embodiment of the present disclosure, an installation structure for an agitator installed in a dust suction unit of a robot cleaner to scatter foreign substances distributed in a working area comprises: a holder which is connected to a driving motor for providing a torque to the agitator and has a part exposed to the inside of the dust suction unit; and a fixing shaft for forming a rotation shaft of the agitator and having a shape of a polygonal pillar or a shape of a pillar including at least one projection, wherein a shaft insertion part is formed in the holder, has a dented shape corresponding to the shape of the fixing shaft, and can be engaged and rotated with the fixing shaft while the fixing shaft is inserted into and installed at the holder. According to an embodiment of the present disclosure, the easy separation and installation of the agitator and the enablement of simultaneous rotation of the agitator and a side brush can improve user satisfaction.Type: ApplicationFiled: June 30, 2009Publication date: April 19, 2012Inventors: Sung-Guen Kim, In-Bo Shim, Byung-Doo Yim, Ji-Hoon Sung, Bong-Ju Kim
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Publication number: 20120090126Abstract: Provided is a robot cleaner. In an embodiment, the robot cleaner for avoiding obstacles and sucking foreign materials using a plurality of sensors and a suction motor is characterized in that a drive suppression unit for detecting obstacles having a corresponding height is integrated with a base for forming a lower portion of a main body in order to not climb obstacles of a constant height during a driving period of the robot cleaner. The present disclosure according to the embodiment improves drive stability of the robot cleaner by sensing a threshold in erroneous state of the sensor for sensing the threshold.Type: ApplicationFiled: June 30, 2009Publication date: April 19, 2012Applicant: LG ELECTRONICS INC.Inventors: Sung-Guen Kim, In-Bo Shim, Byung-Doo Yim, Ji-Hoon Sung, Bong-Ju Kim
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Publication number: 20120095597Abstract: Provided is a robot cleaner, and more particularly to a robot cleaner which detest whether a foreign material storage unit is separated. The robot cleaner includes a main body including a suction motor, a foreign material storage unit separably disposed within the main body, the foreign material storage unit storing foreign materials contained in sucked air, a foreign material cover for selectively shielding one side of the foreign material storage unit, and a detection unit for detecting whether the foreign material cover is opened.Type: ApplicationFiled: July 6, 2009Publication date: April 19, 2012Inventors: Bong-Ju Kim, In-Bo Shim, Ji-Hoon Sung, Byung-Doo Yim, Sung-Guen Kim
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Publication number: 20120023699Abstract: Provided is a robot cleaner, and more particularly to a robot cleaner for shielding particularly an air inlet of a foreign material storage unit. The robot cleaner includes a main body including a drive unit for providing a suction force, a main cover for shielding a side of the main body, a foreign material storage unit separably disposed on the main cover, the foreign material storage unit having an air inlet for introducing air containing foreign materials, a foreign material cover disposed on the main cover, the foreign material cover selectively shielding a side of the foreign material storage unit, and a shield member disposed on the foreign material storage unit, the shield member selectively shielding the air inlet.Type: ApplicationFiled: July 6, 2009Publication date: February 2, 2012Inventors: In-Bo Shim, Sung-Guen Kim, Byung-Doo Yim, Bong-Ju Kim, Ji-Hoon Sung
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Publication number: 20100223399Abstract: A method and apparatus for processing a timestamp using signature information on a physical layer is provided. The timestamp processing terminal uses a pseudo-random binary sequence to assign signature information to a message which is to be sent to another terminal, and verifies the signature information on a physical layer. The signature information is used to identify the message as a sync message. Accordingly, it is possible to precisely process the timestamp.Type: ApplicationFiled: December 11, 2009Publication date: September 2, 2010Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KOREA ADVANCED INSTITUTE OF SCIENCE & TECHNOLOGYInventors: Seung-hwan KIM, Je-soo KO, June-koo RHEE, Kyu-sang LEE, Chan-kyun LEE, Ji-hoon SUNG
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Patent number: 7489277Abstract: A robot cleaner including: a main body; and an RF antenna installed at the main body with such a length appropriate for communication with a remote controller. Because the RF antenna is installed within the main body, the degradation of traveling performance and cleaning efficiency caused as the antenna contacts with an external obstacle can be prevented.Type: GrantFiled: August 7, 2006Date of Patent: February 10, 2009Assignee: LG Electronics Inc.Inventors: Ji-Hoon Sung, Hee-Suk Roh
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Patent number: 7233122Abstract: Disclosed is a pressing sensing technology of a self-running robot, comprising a pressing sensing unit for sensing pressing on the top of the self-running robot and a microprocessor for controlling driving of the self-running robot in accordance with the sensing signal from the pressing sensing unit to enable the self-running robot to escape from an area where the pressing has occurred. Accordingly, the invention has an advantage in that it can prevent a function degradation and damage of the self-running robot by changing a running direction of the self-running robot when pressing on the self-running robot is sensed to enable the self-running robot to escape from the area where the pressing has occurred, or notifying, when the pressing cannot be released, a user of the state in voice to take any necessary action.Type: GrantFiled: December 28, 2005Date of Patent: June 19, 2007Assignee: LG Electronics Inc.Inventors: Jong-sung Kim, Ji-hoon Sung
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Publication number: 20070035457Abstract: A robot cleaner including: a main body; and an RF antenna installed at the main body with such a length appropriate for communication with a remote controller.Type: ApplicationFiled: August 7, 2006Publication date: February 15, 2007Applicant: LG ELECTRONICS INC.Inventors: Ji-Hoon SUNG, Hee-Suk ROH
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Publication number: 20060238157Abstract: Disclosed is a pressing sensing technology of a self-running robot, comprising a pressing sensing unit for sensing pressing on the top of the self-running robot and a microprocessor for controlling driving of the self-running robot in accordance with the sensing signal from the pressing sensing unit to enable the self-running robot to escape from an area where the pressing has occurred. Accordingly, the invention has an advantage in that it can prevent a function degradation and damage of the self-running robot by changing a running direction of the self-running robot when pressing on the self-running robot is sensed to enable the self-running robot to escape from the area where the pressing has occurred, or notifying, when the pressing cannot be released, a user of the state in voice to take any necessary action.Type: ApplicationFiled: December 28, 2005Publication date: October 26, 2006Inventors: Jong-sung Kim, Ji-hoon Sung
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Patent number: RE47264Abstract: A charging device of a robot cleaner is provided. The charging device of a robot cleaner according to the embodiment includes at least one cover forming an appearance of the charging device, a base which is coupled with the cover and includes a terminal unit for charging the robot cleaner, an induction signal generating unit disposed at a side of the cover or the base to transmit a return induction signal to the robot cleaner, and an induction signal guide member disposed at a side of the induction signal generating unit to enhance a docking performance of the robot cleaner by improving linearity of the induction signal. The charging device according to the embodiment can guide the path for the return of the robot cleaner and recharge the robot cleaner stably.Type: GrantFiled: September 24, 2015Date of Patent: March 5, 2019Assignee: LG ELECTRONICS INC.Inventors: Bong-Ju Kim, In-Bo Shim, Ji-Hoon Sung, Byung-Doo Yim, Sung-Guen Kim
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Patent number: RE47265Abstract: A charging device of a robot cleaner is provided. The charging device of a robot cleaner according to the embodiment includes at least one cover forming an appearance of the charging device, a base which is coupled with the cover and includes a terminal unit for charging the robot cleaner, an induction signal generating unit disposed at a side of the cover or the base to transmit a return induction signal to the robot cleaner, and an induction signal guide member disposed at a side of the induction signal generating unit to enhance a docking performance of the robot cleaner by improving linearity of the induction signal. The charging device according to the embodiment can guide the path for the return of the robot cleaner and recharge the robot cleaner stably.Type: GrantFiled: December 10, 2015Date of Patent: March 5, 2019Assignee: LG ELECTRONICS INC.Inventors: Bong-Ju Kim, In-Bo Shim, Ji-Hoon Sung, Byung-Doo Yim, Sung-Guen Kim