Industry Collaboration Foundation of INHA UNIVERSITY Patent applications |
Patent application number | Title | Published |
20100182897 | SIGNAL DETECTING METHOD FOR SPATIAL MULTIPLEXING MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEMS - A method for detecting signals in spatial multiplexing multiple-input multiple-output (MIMO) systems using a QR-decomposition with M (QRD-M) algorithm is provided. The method includes receiving signals, limiting upper and lower bounds of a complexity in a QR-decomposition with M (QRD-M) algorithm, and detecting the received signals using the QRD-M algorithm. The signal detecting method can effectively reduce the amount of operation generated while detecting signals, using the QRD-M algorithm where the upper and lower bounds of the complexity are limited. | 07-22-2010 |
20080298240 | NODE AVAILABILITY PREDICTION-BASED GRID NETWORK CONGESTION CONTROL DEVICE AND METHOD THEREFOR - A system and method are disclosed, which controls congestion to efficiently transmit data through a network of grid node network in a grid computing environment where a large amount of data is processed. The system and method are performed in such a way that, according to a grid application program's request for distributed processing a large amount of data, the data is divided into packets, the node availability of respective nodes distributed in the grid network is measured with consideration to the bandwidth and the queue size of available grid nodes to avoid and control network congestion that may occur when the packets are processed by distributed processing using the respective nodes, the average node availability of all nodes is predicted using a statistical method, a threshold is calculated based on the predicted average node availability to set a dynamic congestion area representing the congestion level of the respective nodes, and the amount of packet transmission is controlled based on the congestion area. As the grid nodes are managed by controlling congestion, packet loss and packet delay are reduced and the rate of packet processing and the rate of node use are increased. Therefore, data can be stably transmitted to the grid user through the network with an improvement in the Quality of Service (QoS). | 12-04-2008 |
20080275647 | SYSTEM FOR GUIDING AN OBSTACLE AVOIDANCE DIRECTION INCLUDING SENSES FOR SUPERSONIC WAVES - An obstacle avoidance system having an ultrasonic sensor is provided. The system includes an ultrasonic sensor array having at least one ultrasonic sensor for measuring a distance to an obstacle using an ultrasonic wave, an orientation tracker for tracking a proceeding direction, an controller for receiving distance data and orientation data from the ultrasonic sensor array and the orientation tracker, respectively, and for determining an avoidance orientation based on the distance data and the orientation data, and an avoidance orientation guiding unit for informing the pedestrian of the avoidance orientation determined by the controller. The controller stores distance data for a certain number of previous frames and, if the controller determines that distance data of a first frame is noise, the distance data of the first frame is replaced with an average between the distance data of a frame prior to the first frame and the distance data of a frame after the first frame. Also, the controller calculates an amount of orientation change for a second frame using the orientation data of the orientation tracker and regards the distance data of the second frame as noise, if the calculated amount of orientation change is greater than a threshold. | 11-06-2008 |