Abstract: A vision system is configured to dynamically inspect an object in a field of view. This includes capturing, using a camera, three-dimensional (3D) point cloud data of the field of view and transforming each of the points of the 3D point cloud data into a plurality of tangential surface vectors. Surface normal vectors are determined for each of the points of the 3D point cloud data based upon the plurality of tangential surface vectors. Distribution peaks in the surface normal vectors are detected employing a unit sphere mesh. Parallel planes are separated using the distance distribution peaks. A radially bounded nearest neighbor strategy combined with a process of nearest neighbor searching based upon cell division is executed to segment a planar patch. A planar surface is identified based upon the segmented planar patch.
Type:
Grant
Filed:
January 8, 2015
Date of Patent:
October 30, 2018
Assignees:
SungKyunKwan University Foundation for Corporation Collaboration, GM Global Technology Operations LLC
Inventors:
Sukhan Lee, Hung Huu Nguyen, Jaewoong Kim, Jianying Shi
Abstract: The present invention relates to a photobioreactor, and more particularly, a photobioreactor for culturing living organisms such as microalgae, which carry out photosynthesis using carbon dioxide and light energy. The photobioreactor includes: (a) a reaction vessel, in which photosynthesis occurs by photosynthetic organisms; (b) a multipurpose inlet/outlet formed at the outside upper end of the reaction vessel; (c) an outer pipe connected to the multipurpose inlet/outlet at the outside of the reaction vessel; and (d) an inner pipe connected to the multipurpose inlet/outlet at the inside of the reaction vessel, wherein the reaction vessel is made of a transparent film. The photobioreactor according to the present invention is advantageous in that the reaction vessel in which photosynthesis occurs is a plate-type and made of a transparent film, thus achieving improved light transmittance and mobility, and enabling the economically advantageous manufacture and operation thereof.
Type:
Grant
Filed:
January 20, 2011
Date of Patent:
August 7, 2018
Assignee:
Sungkyunkwan University Foundation for Corporation Collaboration
Abstract: There is provided a surface plasmon resonance sensor including a metallic graphene layer formed in a core of a predetermined area of an optical fiber from which a jacket and a cladding are removed. Further, a preparing method of the surface plasmon resonance sensor and a surface plasmon resonance sensor system is also provided.
Type:
Grant
Filed:
October 21, 2010
Date of Patent:
July 7, 2015
Assignee:
SUNGKYUNKWAN UNIVERSITY FOUNDATION FOR CORPORATION COLLABORATION
Inventors:
Taesung Kim, Byung Hee Hong, Jaeboong Choi, Atul Kulkarni, Hyeong Keun Kim
Abstract: Disclosed are a maximum power point tracker, a power conversion controller, a power conversion device having an insulating structure, and a method for tracking maximum power point. The power conversion device includes: a DC/AC converter including a primary DC chopper unit having a primary switch, a transformer, and an AC/AC conversion unit including a secondary switch; a current detector detecting current from an input stage of the DC/AC converter and providing a detected current value; a voltage detector detecting a system voltage from an output stage of the DC/AC converter; and a power conversion controller generating a primary PWM signal to be provided to the primary DC chopper unit and secondary first and second PWM signals, having the mutually opposing phases, to be provided to the AC/AC conversion unit by using the detected current value and the system voltage.
Type:
Grant
Filed:
March 15, 2013
Date of Patent:
June 9, 2015
Assignees:
SAMSUNG ELECTRO-MECHANICS CO., LTD., SUNGKYUNKWAN UNIVERSITY FOUNDATION FOR CORPORATION COLLABORATION
Inventors:
Jin Wook Kim, Tae Won Lee, Dong Seong Oh, Yong Hyok Ji, Byoung Kuk Lee, Chung Yuen Won, Jae Hyung Kim, Young Ho Kim
Abstract: Method of performing cooperative communication in wireless LAN includes determining, by receiver, whether cooperative communication is necessary based on transmission request signal provided from transmitter, when it is determined that the cooperative communication is necessary, transmitting, by the receiver, transmission response signal instructing the cooperative communication, overhearing, by a plurality of devices, the transmission response signal instructing the cooperative communication, transmitting, by at least one of the devices, response signal for supporting relaying to the transmitter, selecting, by the transmitter, a relay based on the response signal, transmitting, by the transmitter, data to the relay, and attaching, by the relay, data of the relay to the data transmitted by the transmitter and transmitting result data to the receiver.
Type:
Grant
Filed:
December 18, 2009
Date of Patent:
April 2, 2013
Assignee:
Sungkyunkwan University Foundation for Corporation Collaboration
Abstract: Provided are an ontology system, a method for managing the ontology system, and a recording medium storing the same. The ontology system includes: a context broker unit for receiving context information from a sensing device and verifying a validity of the received context information; a context managing unit for controlling to generate an ontology structure by transforming the verified context information from the context broker unit to ontology web language (OWL) data and processing the OWL data; a rule-based inference engine unit for transforming the processed context information from the context managing unit to semantic web rule language (SWRL) data and processing the SWRL data through an inference process; a learning managing unit for processing the processed context information from the context managing unit through learning; and a database for storing the context information processed at the context managing unit, the rule-based engine unit, and the learning managing unit.
Type:
Grant
Filed:
October 30, 2007
Date of Patent:
April 5, 2011
Assignee:
Sungkyunkwan University Foundation For Corporation Collaboration
Inventors:
Jung Hoon Kim, Ki Chul Lee, Jee Hyong Lee, Tae Bok Yoon
Abstract: Disclosed is a clock-based data storage device, which includes a dual pulse generating device and a data starge device having two dynamic nodes for prior chargement/dischargement.
Type:
Application
Filed:
February 20, 2008
Publication date:
July 23, 2009
Applicant:
Sungkyunkwan University Foundation for Corporation Collaboration
Inventors:
Bai Sun Kong, Sung Chan Kang, Byung Hwa Jung
Abstract: Provided are an organic thin film transistor (OTFT) and a fabrication method thereof, an organic semiconductor device having the OTFT, and a flexible display device having the OTFT. The OTFT includes a substrate, a gate electrode, an insulating layer, an active layer, and a source/drain electrode. The gate electrode may be made of a nanocrystalline carbon layer.
Type:
Application
Filed:
December 27, 2007
Publication date:
March 5, 2009
Applicant:
SUNGKYUNKWAN UNIVERSITY FOUNDATION FOR CORPORATION COLLABORATION
Inventors:
Byung You HONG, Yong Seob Park, Won Seok Choi, Nae Eung Lee, Young Gug Seol, Hwa Young Noh