Patents by Inventor Choong-Hun Lee
Choong-Hun Lee 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: 9852061Abstract: A memory device may include a non-volatile memory and non-volatile RAM. The non-volatile memory may include a data block and a metadata block. Metadata information with respect to the data block may be included in the metadata block. A portion of metadata with respect to the data block or the metadata with respect to the metadata block may be stored in the non-volatile RAM.Type: GrantFiled: January 23, 2009Date of Patent: December 26, 2017Assignee: Samsung Electronics Co., Ltd.Inventors: Jae Don Lee, Choong Hun Lee, Gyu Sang Choi, Min Young Son
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Patent number: 9292435Abstract: A memory device includes a data block storing first data, and a log block storing second data that is an updated value of the first data. A spare area of the log block stores a first mapping table including mapping information between the first data and the second data.Type: GrantFiled: August 5, 2009Date of Patent: March 22, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Jae Don Lee, Gyu Sang Choi, Min Young Son, Choong Hun Lee
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Publication number: 20140292747Abstract: A 3D graphic data generation method for a mobile device with improved usability and an application development environment using the method include a shader integrated development environment (IDE) which loads a plurality of 3D objects generated based on an authoring tool, sorts the plurality of 3D objects according to depths from a camera, and provides the plurality of 3D objects being sorted to a 3D application which is driven in the mobile device.Type: ApplicationFiled: October 21, 2013Publication date: October 2, 2014Applicant: Samsung Electronics Co., Ltd.Inventor: Choong Hun LEE
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Patent number: 8621140Abstract: Described herein is a flash memory apparatus and method controlling the same. The flash memory apparatus includes a processor and one or more flash memory units. The processor controls one or more memory operations performed in the one or more flash memory units. The processor stops controlling a memory operation in a flash memory unit when the memory operation is performed, and continues performing the memory operation in the flash memory unit when the flash memory unit generates an interrupt signal.Type: GrantFiled: December 16, 2009Date of Patent: December 31, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Choong Hun Lee, Jae Don Lee, Min Young Son
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Patent number: 8356135Abstract: A memory device includes a first controller and a second controller. The first controller receives a first command from a host and stores the first command in a first command queue, and transmits the first command to the second controller relating to the first command stored in the first command queue. The second controller transmits the first command stored in the second command queue to a flash memory.Type: GrantFiled: May 22, 2009Date of Patent: January 15, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Min Young Son, Gyu Sang Choi, Jae Don Lee, Choong Hun Lee
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Patent number: 8281042Abstract: A memory device and a method of managing a memory are provided. The memory device includes a command queue configured to receive a first command from a host to store the first command, and to read and transmit the first command, a controller configured to read, from a storage device, data corresponding to the first command transmitted from the command queue, and to store the data in a buffer memory, and a first memory configured to store a data list of data stored in the buffer memory, wherein, in response to the command queue receiving the first command from the host, the controller updates the data list of data stored in the first memory.Type: GrantFiled: May 22, 2009Date of Patent: October 2, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Min Young Son, Gyu Sang Choi, Jae Don Lee, Choong Hun Lee
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Publication number: 20120133660Abstract: A method and apparatus for processing data in a heterogeneous multi-core environment, capable of reducing data processing time by storing frames not having redundant data only among input frames in a shared memory. The apparatus compares a second frame with a first frame having a time difference with respect to a first frame, thereby determining identity between the first frame and the second frame. The apparatus stores address information related to the first frame or stores the second frame according to the determination result, thereby reducing quantity of data to be updated.Type: ApplicationFiled: November 30, 2011Publication date: May 31, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Gyeong Ja JANG, Choong Hun Lee, Seok Yoon Jung, Shi Hwa Lee
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Patent number: 8165526Abstract: Provided are a connecting apparatus for a wireless device and a connecting method thereof, more particularly, a connecting apparatus for a wireless device, which exchanges basic information required for establishing a wireless communication channel between wireless devices through a contact surface interface on which the wireless devices physically contact each other, registers the basis information respectively in the wireless devices, and completes setting of a communication protocol while the wireless devices contact each other, and a connecting method thereof. Therefore, since basic information for communications is automatically exchanged between wireless devices and registered respectively in the wireless devices through a contact interface, it is possible to easily and conveniently connect the wireless devices wirelessly.Type: GrantFiled: April 7, 2008Date of Patent: April 24, 2012Assignee: Samsung Electronics CorporationInventors: Choong-hun Lee, Ja-nam Ku
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Publication number: 20100235566Abstract: Described herein is a flash memory apparatus and method controlling the same. The flash memory apparatus includes a processor and one or more flash memory units. The processor controls one or more memory operations performed in the one or more flash memory units. The processor stops controlling a memory operation in a flash memory unit when the memory operation is performed, and continues performing the memory operation in the flash memory unit when the flash memory unit generates an interrupt signal.Type: ApplicationFiled: December 16, 2009Publication date: September 16, 2010Inventors: Choong Hun LEE, Jae Don LEE, Min Young SON
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Publication number: 20100146163Abstract: A memory device and a method of managing a memory are provided. The memory device includes a command queue configured to receive a first command from a host to store the first command, and to read and transmit the first command, a controller configured to read, from a storage device, data corresponding to the first command transmitted from the command queue, and to store the data in a buffer memory, and a first memory configured to store a data list of data stored in the buffer memory, wherein, in response to the command queue receiving the first command from the host, the controller updates the data list of data stored in the first memory.Type: ApplicationFiled: May 22, 2009Publication date: June 10, 2010Inventors: Min Young Son, Gyu Sang Choi, Jae Don Lee, Choong Hun Lee
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Publication number: 20100131736Abstract: A memory device includes a data block storing first data, and a log block storing second data that is an updated value of the first data. A spare area of the log block stores a first mapping table including mapping information between the first data and the second data.Type: ApplicationFiled: August 5, 2009Publication date: May 27, 2010Inventors: Jae Don LEE, Gyu Sang Chol, Min young Son, Choong Hun Lee
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Publication number: 20100088467Abstract: A memory device may include a non-volatile memory and non-volatile RAM. The non-volatile memory may include a data block and a metadata block. Metadata information with respect to the data block may be included in the metadata block. A portion of metadata with respect to the data block or the metadata with respect to the metadata block may be stored in the non-volatile RAM.Type: ApplicationFiled: January 23, 2009Publication date: April 8, 2010Inventors: Jae Don LEE, Choong Hun LEE, Gyu Sang CHOI, Min Young SON
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Patent number: 7676226Abstract: A fast handover method optimized for IEEE 802.11 networks. In a wireless local area system including a mobile terminal and at least two wireless access points (APs) that communicate with the mobile terminal over a unique radio channel, the fast handover method includes receiving a beacon frame signal from the serving AP and the neighbor APs of the mobile terminal; generating a first signal to determine a state of each of the neighbor APs based on the beacon frame signal received from each of the neighbor APs; comparing the first signal with predefined thresholds, classifying the neighbor APs into a detected AP, a candidate AP, and a target AP according to a result of the comparison, and storing the classification result in a neighbor AP list; and selecting an AP for the handover based on the classification result in the neighbor AP list.Type: GrantFiled: May 17, 2005Date of Patent: March 9, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Youn-hee Han, Hee-jin Jang, Choong-hun Lee
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Patent number: 7640035Abstract: Disclosed herein is wireless home LAN system using multiple antennas, and a wireless access point (AP) apparatus in a communication system for providing a plurality of terminals contained in a closed specific area with a wireless access service that includes a plurality of wireless modules arranged in the closed specific area at intervals of a predetermined distance, that are selectively activated, and a control module connected to the wireless modules by wire, for controlling communication performed in the area of the terminals and connection to an external network using the activated wireless modules. The apparatus selectively activates antennas in only a specific area requesting a communication service using a single controller and a plurality of antennas connected to the controller, such that it can solve performance anomalies and inter-cell frequency interference problems. Also, the apparatus controls propagation beams to concentrate on a minimum area, resulting in improved security.Type: GrantFiled: July 12, 2005Date of Patent: December 29, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Kyung-Hun Jang, Pil-Yong Hwang, Jin-Bong Chang, Choong-Hun Lee
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Publication number: 20090282188Abstract: A memory device includes a first controller and a second controller. The first controller receives a first command from a host and stores the first command in a first command queue, and transmits the first command to the second controller relating to the first command stored in the first command queue. The second controller transmits the first command stored in the second command queue to a flash memory.Type: ApplicationFiled: May 22, 2009Publication date: November 12, 2009Inventors: Min Young SON, Gyu Sang Choi, Jae Don Lee, Choong Hun Lee
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Publication number: 20090111380Abstract: Provided are a connecting apparatus for a wireless device and a connecting method thereof, more particularly, a connecting apparatus for a wireless device, which exchanges basic information required for establishing a wireless communication channel between wireless devices through a contact surface interface on which the wireless devices physically contact each other, registers the basis information respectively in the wireless devices, and completes setting of a communication protocol while the wireless devices contact each other, and a connecting method thereof. Therefore, since basic information for communications is automatically exchanged between wireless devices and registered respectively in the wireless devices through a contact interface, it is possible to easily and conveniently connect the wireless devices wirelessly.Type: ApplicationFiled: April 7, 2008Publication date: April 30, 2009Inventors: Choong-hun LEE, Ja-nam KU
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Patent number: 7403506Abstract: A handoff method is provided in a communication network including a plurality of fixed nodes attached to a router connected to at least one external network, and at least one mobile node associated with a current fixed node. The method detects movement of a mobile node; prepares a handoff of the mobile node from a current fixed node to potential fixed nodes upon detecting movement of the mobile node; decides whether to handoff to one of the potential fixed nodes as a target fixed node; and performs the handoff from the current fixed node to the target fixed node. The handoff method enables the mobile station to quickly move its association from one access point to another by minimizing a probe delay which is a primary contributor to handoff delay.Type: GrantFiled: May 31, 2005Date of Patent: July 22, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Choong-Hun Lee, Kyung-Hun Jang, Chang-Woo Seo, Jin-Youn Cho, Hyo-Sun Hwang, Sung-Jea Ko, Chun-Su Park
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Publication number: 20060009208Abstract: Disclosed herein is wireless home LAN system using multiple antennas, and a wireless access point (AP) apparatus in a communication system for providing a plurality of terminals contained in a closed specific area with a wireless access service that includes a plurality of wireless modules arranged in the closed specific area at intervals of a predetermined distance, that are selectively activated, and a control module connected to the wireless modules by wire, for controlling communication performed in the area of the terminals and connection to an external network using the activated wireless modules. The apparatus selectively activates antennas in only a specific area requesting a communication service using a single controller and a plurality of antennas connected to the controller, such that it can solve performance anomalies and inter-cell frequency interference problems. Also, the apparatus controls propagation beams to concentrate on a minimum area, resulting in improved security.Type: ApplicationFiled: July 12, 2005Publication date: January 12, 2006Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kyung-Hun Jang, Pil-Yong Hwang, Jin-Bong Chang, Choong-Hun Lee
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Publication number: 20050265287Abstract: A handoff method is provided in a communication network including a plurality of fixed nodes attached to a router connected to at least one external network, and at least one mobile node associated with a current fixed node. The method detects movement of a mobile node; prepares a handoff of the mobile node from a current fixed node to potential fixed nodes upon detecting movement of the mobile node; decides whether to handoff to one of the potential fixed nodes as a target fixed node; and performs the handoff from the current fixed node to the target fixed node. The handoff method enables the mobile station to quickly move its association from one access point to another by minimizing a probe delay which is a primary contributor to handoff delay.Type: ApplicationFiled: May 31, 2005Publication date: December 1, 2005Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Choong-Hun Lee, Kyung-Hun Jang, Chang-Woo Seo, Jin-Youn Cho, Hyo-Sun Hwang, Sung-Jea Ko, Chun-Su Park
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Publication number: 20050255847Abstract: A fast handover method optimized for IEEE 802.11 networks. In a wireless local area system including a mobile terminal and at least two wireless access points (APs) that communicate with the mobile terminal over a unique radio channel, the fast handover method includes receiving a beacon frame signal from the serving AP and the neighbor APs of the mobile terminal; generating a first signal to determine a state of each of the neighbor APs based on the beacon frame signal received from each of the neighbor APs; comparing the first signal with predefined thresholds, classifying the neighbor APs into a detected AP, a candidate AP, and a target AP according to a result of the comparison, and storing the classification result in a neighbor AP list; and selecting an AP for the handover based on the classification result in the neighbor AP list.Type: ApplicationFiled: May 17, 2005Publication date: November 17, 2005Applicant: Samsung Electronics Co., Ltd.Inventors: Youn-hee Han, Hee-jin Jang, Choong-hun Lee