Patents by Inventor Jae Han Lim
Jae Han Lim 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: 11535294Abstract: Carbon steel for a rack bar contains 0.50 to 0.55% by weight of carbon (C), 0.15 to 0.35% by weight of silicon (Si), 0.75 to 0.95% by weight of manganese (Mn), 0.025% by weight or less of phosphorus (P), 0.025% by weight or less of sulfur (S), 0.65 to 0.85% by weight of chrome (Cr), 0.20% by weight or less of molybdenum (Mo), 0.001 to 0.02% by weight of aluminum (Al), 5 to 50 ppm of boron (B), and iron (Fe) as a remainder and unavoidable impurities. A method for manufacturing the rack bar includes quenching, tempering, and drawing the carbon steel and warm forging the drawn carbon steel.Type: GrantFiled: February 24, 2021Date of Patent: December 27, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, HYUNDAI STEEL COMPANYInventors: Hyung Gook Lee, Jae Han Lim
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Publication number: 20220161843Abstract: Carbon steel for a rack bar contains 0.50 to 0.55% by weight of carbon (C), 0.15 to 0.35% by weight of silicon (Si), 0.75 to 0.95% by weight of manganese (Mn), 0.025% by weight or less of phosphorus (P), 0.025% by weight or less of sulfur (S), 0.65 to 0.85% by weight of chrome (Cr), 0.20% by weight or less of molybdenum (Mo), 0.001 to 0.02% by weight of aluminum (Al), 5 to 50 ppm of boron (B), and iron (Fe) as a remainder and unavoidable impurities. A method for manufacturing the rack bar includes quenching, tempering, and drawing the carbon steel and warm forging the drawn carbon steel.Type: ApplicationFiled: February 24, 2021Publication date: May 26, 2022Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, HYUNDAI STEEL COMPANYInventors: Hyung Gook Lee, Jae Han Lim
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Patent number: 10944539Abstract: A backscatter communication method and apparatus based on pattern-based demodulation is disclosed. The backscatter communication method includes receiving a communication signal, and demodulating the communication signal based on a slope of the communication signal at an edge of each time interval.Type: GrantFiled: August 16, 2019Date of Patent: March 9, 2021Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Byung Jang Jeong, Jae-Han Lim, Hwanwoong Hwang, Ji-Hoon Yun
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Patent number: 10911136Abstract: Disclosed are a communication method and communication apparatus using an ambient backscatter communication. A transmission apparatus may include generating a plurality of bitsets by fragmenting data based on a predetermined bitset length, mapping the plurality of bitsets to a plurality of switching patterns based on a data size, and controlling a reflection of a background radio frequency (RF) signal based on a corresponding mapped switching pattern, a total number of the plurality of switching patterns may be determined based on the bitset length, and each of the plurality of switching patterns may have a different length.Type: GrantFiled: November 28, 2018Date of Patent: February 2, 2021Assignees: Electronics and Telecommunications Research institute, FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Byung Jang Jeong, Woo Jin Byun, Ji-Hoon Yun, Jae-Han Lim, Wisnu Murti
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Publication number: 20200220707Abstract: A backscatter communication method and apparatus based on pattern-based demodulation is disclosed. The backscatter communication method includes receiving a communication signal, and demodulating the communication signal based on a slope of the communication signal at an edge of each time interval.Type: ApplicationFiled: August 16, 2019Publication date: July 9, 2020Applicants: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Byung Jang JEONG, Jae-Han LIM, Hwanwoong HWANG, Ji-Hoon YUN
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Patent number: 10514442Abstract: Provided is a code allocating apparatus including an interference signal measurer configured to measure interference signals, an interference signal sharer configured to control radars to share the measured interference signals between the radars, a code allocator configured to dynamically allocate a code generated based on the measured interference signals to each of the radars, and a code applier configured to apply the code to each of the radars.Type: GrantFiled: January 24, 2017Date of Patent: December 24, 2019Assignee: Electronics and Telecommunications Research InstituteInventor: Jae Han Lim
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Publication number: 20190253135Abstract: Disclosed are a communication method and communication apparatus using an ambient backscatter communication. A transmission apparatus may include generating a plurality of bitsets by fragmenting data based on a predetermined bitset length, mapping the plurality of bitsets to a plurality of switching patterns based on a data size, and controlling a reflection of a background radio frequency (RF) signal based on a corresponding mapped switching pattern, a total number of the plurality of switching patterns may be determined based on the bitset length, and each of the plurality of switching patterns may have a different length.Type: ApplicationFiled: November 28, 2018Publication date: August 15, 2019Applicants: Electronics and Telecommunications Research Institute, FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Byung Jang JEONG, Woo Jin BYUN, Ji-Hoon YUN, Jae-Han LIM, Wisnu MURTI
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Publication number: 20170261596Abstract: Provided is a code allocating apparatus including an interference signal measurer configured to measure interference signals, an interference signal sharer configured to control radars to share the measured interference signals between the radars, a code allocator configured to dynamically allocate a code generated based on the measured interference signals to each of the radars, and a code applier configured to apply the code to each of the radars.Type: ApplicationFiled: January 24, 2017Publication date: September 14, 2017Inventor: Jae Han LIM
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Patent number: 9217216Abstract: A washing machine that circulates wash water and, at the same time, generates bubbles in the wash water. The washing machine includes a machine body, a tub disposed in the machine body. a tub cover provided above the tub, a pump mounted below the tub, and a circulation unit, having one end coupled to the pump and the other end coupled to the tub cover, to circulate wash water from the pump to the tub. The circulation unit includes a first channel, a second channel communicating with the first channel, the second channel having a smaller sectional area than the first channel, and an air inlet port provided in the second channel to allow air to be introduced into the circulation unit therethrough.Type: GrantFiled: October 18, 2011Date of Patent: December 22, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yun Ho Choi, Jae Han Lim, Seung Hwan Chung, Young Mi Kim
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Patent number: 8996272Abstract: Provided is a cruise control system and method. A vehicle cruise control system collects state information of components inside and outside a vehicle, state information of a road on which the vehicle is provided, and drive pattern information of a driver of the vehicle, analyzes a mileage amount and an exhaust gas emission amount of the vehicle based on the collected state information of the components, the road state information, and the drive pattern information, calculates a cruise control speed based on the analysis result, and controls the vehicle to run at the cruise control speed.Type: GrantFiled: September 24, 2009Date of Patent: March 31, 2015Assignee: Electronics and Telecommunications Research InstituteInventors: Do Hyun Kim, Jungsook Kim, Jae Han Lim, Kyeong Tae Kim, Byung Tae Jang, Jeong Dan Choi, Jaejun Yoo, Kyung Bok Sung, Jeong Ah Jang
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Patent number: 8571008Abstract: The present invention relates to a time synchronization method in a wireless sensor network. In the present invention, if an upper node requests a lower reference node to start time synchronization, the lower reference node broadcasts a first sync reference packet. The upper node receives the first sync reference packet and transmits the first sync reference packet reception time to the lower reference node. The lower reference node broadcasts the first sync reference packet reception time, such that the other nodes perform time synchronization on the basis of the first sync reference packet reception time. Meanwhile, the lower reference node estimates the first sync reference packet reception time of the upper node to calculate the reception estimation time, and transmits the reception estimation time to a determination node that is two hops anterior to the lower reference node.Type: GrantFiled: June 12, 2008Date of Patent: October 29, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Kyeong Tae Kim, Byung Tae Jang, Jeong Dan Choi, Do Hyun Kim, Jae Jun Yoo, Kyung Bok Sung, Jung Sook Kim, Jae Han Lim, Jeong Ah Jang
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Patent number: 8457106Abstract: Provided is a wireless communication method in a wireless sensor network environment. The method overhears a packet transmitted from a source sensor node to a destination sink node and determines whether the destination sink node receives the packet. A transmission node selected by using local information among a plurality of neighboring sensor nodes transmits the overheard packet to the destination sink node when the packet is not received.Type: GrantFiled: September 29, 2009Date of Patent: June 4, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Jungsook Kim, Jae Han Lim, Kyeong Tae Kim, Byung Tae Jang, Jeong Dan Choi, Do Hyun Kim, Jaejun Yoo, Kyung Bok Sung, Jeong Ah Jang
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Patent number: 8437318Abstract: Provided are a reliability-based, real-time sensor network medium access control (MAC) communication system and method using a superframe. The superframe includes an active duration which is a time duration in which a communication is established, and a sleep duration which is a time duration in which no communication is established. The active duration includes a beacon block in which a plurality of beacon transmission nodes are respectively allocated beacon slots for transmitting a beacon frame, and a forwarding block in which each of sinks nodes is allocated a slot for unifying data regarding the sink node and data regarding sensor nodes managed by the sink node and transmit the result of unifying in order to establish a communication between the sink nodes and between each of the sink nodes and a base station.Type: GrantFiled: June 26, 2008Date of Patent: May 7, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Chang-Sub Shin, Jung-Sook Kim, Jae-Han Lim, Kyung-Bok Sung, Kyeong-Tae Kim, Byung-Tae Jang, Jong-Hyun Park
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Patent number: 8437947Abstract: An apparatus is for guiding a vehicle traveling of a vehicle by using information technology infrastructures. The apparatus includes: a control terminal for controlling the vehicle traveling; sensing devices that collect circumstance information of guidance areas desirous of guiding the vehicle by using the information technology infrastructures provided on the guidance areas; and a server device that recognizes a circumstance of the guidance areas to create a guidance route based on the collected circumstance information by the sensing device so that the control terminal controls the vehicle to travel along the guidance route.Type: GrantFiled: December 14, 2009Date of Patent: May 7, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Jaejun Yoo, Byung Tae Jang, Jeong Dan Choi, Do Hyun Kim, Jeong Ah Jang, Kyung Bok Sung, Jungsook Kim, Kyeong Tae Kim, Jae Han Lim, Jong-Hyun Park
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Patent number: 8362924Abstract: Provided are a method for running a network for vehicle detection and a system thereof. Each vehicle detecting device is classified into a plurality of groups based on information provided from the vehicle detecting devices and control information that activates or deactivates components of the corresponding vehicle detecting devices is set for each group based on the information. Power of a signal transmitting the information is set for each vehicle detecting device.Type: GrantFiled: October 23, 2009Date of Patent: January 29, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Jungsook Kim, Jae Han Lim, Kyeong Tae Kim, Byung Tae Jang, Jeong Dan Choi, Do Hyun Kim, Jaejun Yoo, Kyung Bok Sung
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Patent number: 8289190Abstract: Provided are an adaptive communication method and a sensor node for performing the same. The sensor node adaptively selects transmitted signal output strength and a wakeup zone of transmitted data based on a received signal strength indication of a control packet received from a sink node and existence of an obstacle acquired through a sensor, and transmits data based on the adaptive selection. Also, during an operation as a receive mode, the sensor node wakes up and determines whether to receive the data from the transmit node based on wakeup zone configuration information per sensor node received from the sink node and a wakeup zone selected by a sensor node currently operable as a transmit node.Type: GrantFiled: December 3, 2009Date of Patent: October 16, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Jae Han Lim, Jungsook Kim, Kyeong Tae Kim, Byung Tae Jang, Kyung Bok Sung, Jaejun Yoo, Do Hyun Kim, Jeong Dan Choi, Jeong Ah Jang
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Publication number: 20120096652Abstract: A washing machine that circulates wash water and, at the same time, generates bubbles in the wash water. The washing machine includes a machine body, a tub disposed in the machine body. a tub cover provided above the tub, a pump mounted below the tub, and a circulation unit, having one end coupled to the pump and the other end coupled to the tub cover, to circulate wash water from the pump to the tub. The circulation unit includes a first channel, a second channel communicating with the first channel, the second channel having a smaller sectional area than the first channel, and an air inlet port provided in the second channel to allow air to be introduced into the circulation unit therethrough.Type: ApplicationFiled: October 18, 2011Publication date: April 26, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yun Ho Choi, Jae Han Lim, Seung Hwan Chung, Young Mi Kim
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Patent number: 8055763Abstract: Provided are a system and method for processing sensing data from a sensor network. The system includes: a data processing condition managing unit for storing sensing data processing conditions; a data processing function managing unit for storing sensing data processing function information; a processed data managing unit for storing processed sensing data; a data pattern managing unit for storing sensing data pattern information; an acquired data managing unit for storing sensing data; a data acquisition condition managing unit for storing sensing data acquisition conditions; a user requirement acquiring unit for acquiring the sensing data acquisition conditions; a data acquiring unit for acquiring sensing data; a data pattern extracting unit for extracting the pattern of sensing data; a data generating unit for processing the sensing data; and a data processing unit for processing the sensing data.Type: GrantFiled: October 15, 2007Date of Patent: November 8, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Jae-Jun Yoo, Do-Hyun Kim, Mi-Jeong Kim, Byung-Tae Jang, Jong-Hyun Park, Jeong-Dan Choi, Myung-Hee Son, Jung-Sook Kim, Kyung-Bok Sung, Jae-Han Lim
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Patent number: 8033143Abstract: A washing machine includes a dehydrating tub which is rotatably mounted, a pulsator which is rotatably mounted in the dehydrating tub, a motor which rotates the dehydrating tub and the pulsator, a washing shaft which transmits a rotational force of the motor to the pulsator, a dehydrating shaft which intermittently transmits the rotational force of the washing shaft to the dehydrating shaft, and a power transmission device which is moved according to rotation of the washing shaft.Type: GrantFiled: February 10, 2009Date of Patent: October 11, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Tae Kil Kim, Jae Han Lim, Seong Kwun Ahn
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Patent number: 7994942Abstract: The present invention relates to a method and apparatus for delivering data based on a sensor network. According to an embodiment of the present invention, the apparatus for delivering data is provided in a means of transportation such as a vehicle, activates a node of a corresponding sensor network when a vehicle enters a road segment, and receives data from the transmission node. Then, the apparatus for delivering data calculates an optimum path along which the received data is delivered to a target destination, determines whether to use other vehicles or to directly deliver the data to the target destination on the basis of the calculated optimum path, and delivers the data to the target destination by the determined method. In this case, the target destination to which the data is delivered may be a different node of the same sensor network, or may be a node or a center of a different sensor network.Type: GrantFiled: June 27, 2008Date of Patent: August 9, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Do Hyun Kim, Jeong Dan Choi, Byung Tae Jang, Jung Sook Kim, Jae Jun Yoo, Kyung Bok Sung, Jae Han Lim, Kyeong Tae Kim, Jeong Ah Jang