Patents by Inventor Hee-Suk Roh
Hee-Suk Roh 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: 9559271Abstract: There is provided an oxynitride-based phosphor comprising a ?-type Si3N4 crystal structure and represented by a compositional formula of Si6?xAlxOxN8?x:Euy (0<x?0.3, 0.001?y?0.03), the oxynitride-based phosphor having a form of a secondary particle comprising a plurality of primary particles bonded to each other, the plurality of primary particles having pillar shapes.Type: GrantFiled: December 15, 2015Date of Patent: January 31, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hee Suk Roh, Seong Min Kim, Jae Hyun Ryu
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Publication number: 20160181484Abstract: There is provided an oxynitride-based phosphor comprising a ?-type Si3N4 crystal structure and represented by a compositional formula of Si6-xAlxOxN8-x:Euy (0<x?0.3, 0.001?y?0.03), the oxynitride-based phosphor having a form of a secondary particle comprising a plurality of primary particles bonded to each other, the plurality of primary particles having pillar shapes.Type: ApplicationFiled: December 15, 2015Publication date: June 23, 2016Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hee Suk ROH, Seong Min KIM, Jae Hyun RYU
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Patent number: 8334484Abstract: Provided are a cooking apparatus and a method for controlling the same. The cooking apparatus senses the size of a cooking vessel, or more specifically, the undersurface area of the cooking vessel, and selectively operates heaters accordingly. Therefore, food can be more efficiently cooked.Type: GrantFiled: December 14, 2007Date of Patent: December 18, 2012Assignee: LG Electronics Inc.Inventors: Hee-Suk Roh, Byeong-Wook Park
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Patent number: 7968824Abstract: A method for controlling a heating cooking apparatus, in which an operation of a heating unit is appropriately controlled according to presence/absence or kinds of a load applied to a plate. When no load is applied to the plate, the duty cycle of a heat source is reduced, thereby preventing unnecessary operation of the heat source. Accordingly, power consumption is reduced. On the other hand, when a load is applied to the plate, the duty cycle of the heat source is increased. Speedy cooking may be possible with this control method.Type: GrantFiled: September 19, 2007Date of Patent: June 28, 2011Assignee: LG Electronics Inc.Inventors: Young Jun Lee, Seung Jo Baek, Byeong Wook Park, Hee Suk Roh
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Patent number: 7780796Abstract: An apparatus for controlling an operation of a robot cleaner including: a battery installed in the robot cleaner; and a means for selectively cutting off power supply of the battery to at least one or more units operated for performing a cleaning operation when the cleaning operation of the robot cleaner is stopped. When the cleaning operation of the robot cleaner is stopped, the robot cleaner is changed to the power saving mode or to the standby mode, and accordingly, power consumption of the battery of the robot cleaner can be reduced.Type: GrantFiled: December 23, 2005Date of Patent: August 24, 2010Assignee: LG Electronics Inc.Inventors: In-Bo Shim, Young-Gie Kim, Hee-Suk Roh
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Publication number: 20100018961Abstract: Provided are a cooking apparatus and a method for controlling the same. The cooking apparatus senses the size of a cooking vessel, or more specifically, the undersurface area of the cooking vessel, and selectively operates heaters accordingly. Therefore, food can be more efficiently cooked.Type: ApplicationFiled: December 14, 2007Publication date: January 28, 2010Applicant: LG ELECTRONICS INCInventors: Hee-Suk Roh, Byeong-Wook Park
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Publication number: 20090242547Abstract: A cooker and a method for controlling the cooker are provided. The cooker may include a heating source configured to generate heat, a detection sensor configured to detect a temperature of the heating source, and a controller configured to compare a current temperature of the heating source detected by the detection sensor with at least one control reference temperature so as to control an on/off operation of the heating source. Until the current temperature of the heating source reaches the control reference temperature, the controller controls the heating source to be kept in an on-state, and when the current temperature of the heating source exceeds the control reference temperature, the controller controls the heating source to be repeatedly turned on and off for a predetermined period of time or a predetermined number of times.Type: ApplicationFiled: October 29, 2008Publication date: October 1, 2009Inventors: Hee Suk ROH, Young Jun Lee, Yang Kyeong Kim, Byeong Wook Park
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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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Publication number: 20080236405Abstract: A heat detecting device and a cooking apparatus using the same, in which the operation of a heating unit is appropriately controlled according to the presence or absence and/or type of cooking container (e.g., pan or pot) on the cooking apparatus. When there is no cooking container on the cooking apparatus, the duty cycle of the heat source is reduced, thereby preventing unnecessary operation of the heat source. Accordingly, power consumption is reduced. On the other hand, when there is a cooking container on the cooking appliance, the duty cycle of the heat source is increased, thereby making faster more efficient cooking possible.Type: ApplicationFiled: December 26, 2007Publication date: October 2, 2008Applicant: LG ELECTRONICS INC.Inventors: Young Jun Lee, Seung Jo Baek, Byeong Wook Park, Hee Suk Roh
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Publication number: 20080237215Abstract: A method for controlling a heating cooking apparatus, in which an operation of a heating unit is appropriately controlled according to presence/absence or kinds of a load applied to a plate. When no load is applied to the plate, the duty cycle of a heat source is reduced, thereby preventing unnecessary operation of the heat source. Accordingly, power consumption is reduced. On the other hand, when a load is applied to the plate, the duty cycle of the heat source is increased. Speedy cooking may be possible with this control method.Type: ApplicationFiled: September 19, 2007Publication date: October 2, 2008Applicant: LG ELECTRONICS INC.Inventors: Young Jun Lee, Seung Jo Baek, Byeong Wook Park, Hee Suk Roh
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Patent number: 7310603Abstract: A voice control apparatus of a vacuum cleaner includes: a sense signal detector for detecting a sense signal provided from a user to provide a voice recognizable environment in an ambience; a voice command recognizing unit for temporarily stopping a driving of a motor upon receiving the detected sense signal and, at the same time, outputting a voice command control signal previously set in a voice command set corresponding to a voice command instructed by the user; and a driving command controller for controlling a function and a mode of a vacuum cleaner upon receiving the voice command control signal. By providing a voice recognizable environment, the vacuum cleaner can be effectively controlled through a user's voice command even in an environment with a strong noise.Type: GrantFiled: November 27, 2002Date of Patent: December 18, 2007Assignee: LG Electronics Inc.Inventors: Sung-Il Park, Chan-Hee Hong, Seong-Bin Lee, Hee-Suk Roh, Anatoli Tikhotski, Victor Redkov, Mikhail Sall, Andrei Viktorov, Alexandr Maiboroda, Valery Chernenko
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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: 20060237158Abstract: An apparatus for controlling an operation of a robot cleaner including: a battery installed in the robot cleaner; and a means for selectively cutting off power supply of the battery to at least one or more units operated for performing a cleaning operation when the cleaning operation of the robot cleaner is stopped. When the cleaning operation of the robot cleaner is stopped, the robot cleaner is changed to the power saving mode or to the standby mode, and accordingly, power consumption of the battery of the robot cleaner can be reduced.Type: ApplicationFiled: December 23, 2005Publication date: October 26, 2006Inventors: In-Bo Shim, Young-Gie Kim, Hee-Suk Roh
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Publication number: 20040034533Abstract: A voice control apparatus of a vacuum cleaner includes: a sense signal detector for detecting a sense signal provided from a user to provide a voice recognizable environment in an ambience; a voice command recognizing unit for temporarily stopping a driving of a motor upon receiving the detected sense signal and, at the same time, outputting a voice command control signal previously set in a voice command set corresponding to a voice command instructed by the user; and a driving command controller for controlling a function and a mode of a vacuum cleaner upon receiving the voice command control signal. By providing a voice recognizable environment, the vacuum cleaner can be effectively controlled through a user's voice command even in an environment with a strong noise.Type: ApplicationFiled: November 27, 2002Publication date: February 19, 2004Applicant: LG Electronics Inc.Inventors: Sung-Il Park, Chan-Hee Hong, Seong-Bin Lee, Hee-Suk Roh, Anatoli Tikhotski, Victor Redkov, Mikhail Sall, Andrei Viktorov, Alexandr Maiboroda, Valery Chernenko