Patent application number | Description | Published |
20100127935 | INDOOR LOCALIZATION SYSTEM AND METHOD - An indoor localization method is implemented using an indoor localization system that includes beacons deployed in an indoor space and transmitting localization signals, and a radio badge for receiving the localization signals. The indoor localization method includes forming signal vectors from the localization signals received by the radio badge at each of predetermined locations in the indoor space, and generating a signal ID value from the signal vectors for each beacon from which the radio badge has received the localization signals. During a tracking phase, signal vectors are formed from the localization signals received by the radio badge at a current location. If the number of the signal ID values is smaller than the number of the signal vectors, the sum of the signal distances is normalized by the number of the signal ID values. An estimated position of the radio badge is obtained using the signal vectors and the signal ID values. | 05-27-2010 |
20100134356 | INDOOR LOCALIZATION SYSTEM AND METHOD - An indoor localization method is implemented using an indoor localization system that includes beacons in an indoor space and each periodically transmitting a localization signal, a radio badge receiving the localization signals, and a host coupled to the beacons and the radio badge. The beacons transmit the localization signals asynchronously. The indoor localization method includes a training phase and a tracking phase. During the training phase, signal vectors are formed from the localization signals received by the radio badge, and a signal ID value is generated from the signal vectors. During the tracking phase, signal vectors are formed from the localization signals received by the radio badge at a current location. An estimated position of the radio badge is obtained using the signal vectors of the tracking phase and the signal ID values. | 06-03-2010 |
20100303129 | FREQUENCY HOPPING METHOD FOR LOCALIZATION SYSTEM - A frequency hopping method for localization system is aimed to overcome the degradation of location accuracy due to radio interference if there are some other radio devices using the same radio frequency as a localization system. A Packet Reception Rate (PRR) thresholding or a learning-based approach for the diagnostic test is proposed. In that, a PRR thresholding or a set of parameters trained by Hidden Markov Model (HMM) is used as a criterion to decide whether or not to hop. The proposed hopping mechanism provides an accurate and stable localization with a minimum delay. | 12-02-2010 |
20100304662 | MULTI-PATH DATA DISSEMINATION METHOD FOR MAGNETIC DIFFUSION WIRELESS NETWORK AND SYSTEM THEREOF - A multi-path data dissemination method for a magnetic diffusion wireless network and a system thereof overcome environmental interferences in wireless data transmissions. Each node of the network is provided for figuring out its good neighbors by broadcasting a good-neighbor exploratory message in a bootstrap process. Each node keeps a good-neighbor table containing nodes with a RSSI higher than a threshold of the good-neighbor table. A magnetic field of a magnetic diffusion (MD) dissemination method capable of determining a data dissemination path is created according to the good-neighbor tables to ensure that the data can be forwarded to a data sink successfully. | 12-02-2010 |
20110082664 | METHOD OF PREDICTING POSITION OF OBJECT - A method of predicting a position of an object includes the steps of ( | 04-07-2011 |
20110143829 | METHOD AND SYSTEM FOR PROPHESYING BEHAVIOR OF ONLINE GAMER, AND COMPUTER PROGRAM PRODUCT THEREOF - A method and a system for prophesying a behavior of an online gamer, and a computer program product thereof are provided. In the present method, a gamer descriptor of a specific gamer of an online game accumulated before a time point is obtained firstly. Then, the gamer descriptor is divided into a plurality of sub-traces according to the time. Thereafter, at least one feature is derived from each of the sub-traces, and all features derived from the sub-traces are used for determining a possibility that the specific gamer quits the online game within a specific time period in the future. | 06-16-2011 |
20130111017 | STATE TRACKING SYSTEM VIA SOCIAL NETWORK INTERFACE AND METHOD THEREOF | 05-02-2013 |
Patent application number | Description | Published |
20100049864 | MULTIMEDIA BROADCAST SYSTEM AND METHOD - A multimedia broadcast system and method supporting peer-to-peer (P2P) coordinated code conversion are provided. The method includes forming, by a data source device, one or more data segments from multimedia data, and then scattering the data segments to a P2P network formed by the viewers; wherein an individual P2P device is connected with one or more P2P devices via a network system to form a partner group, and then acquires code conversion degrees of each data segment to serve as a basis for strategically adjusting the coordinated code conversion of said multimedia data. The coordinated code conversion mechanism is supported by common P2P multimedia broadcast systems, and is capable of rapidly converting the multimedia data in one format into multimedia data in other different media formats, thereby enabling real-time broadcasting of data in different formats to clients using P2P networks of various specifications. | 02-25-2010 |
20100127836 | ENERGY-EFFICIENT INDOOR LOCALIZATION SYSTEM AND A METHOD OF REDUCING POWER CONSUMPTION OF A RADIO BADGE IN THE INDOOR LOCALIZATION SYSTEM - A method of reducing power consumption of a radio badge in a localization system is disclosed, in which the radio badge is carried by a tracked target and is provided with a pedometer for detecting a footstep count of the tracked target. The method includes: estimating a velocity of the radio badge according to the footstep count detected by the pedometer; calculating a sleep time from the velocity of the radio badge; and controlling the radio badge to discontinue emitting radio signals during the sleep time. An indoor localization system that performs the method is also disclosed. | 05-27-2010 |
20100134288 | METHOD OF REDUCING POWER CONSUMPTION OF A RADIO BADGE IN A BOUNDARY DETECTION LOCALIZATION SYSTEM - A method of reducing power consumption of a radio badge in a boundary detection localization system is disclosed, in which the radio badge is carried by a tracked target and performs location sampling communication with an infrastructure component of the localization system at the start and end of sampling time intervals such that positions of the radio badge can be estimated. The method includes: determining a velocity of the radio badge; estimating a critical time for the radio badge to reach a critical region through division in which a critical distance from an estimated position obtained at the end of a most recent sampling time interval to the critical region is the dividend, and the velocity of the radio badge is the divisor; and controlling the radio badge to perform location sampling communication with the infrastructure component of the localization system at the end of the critical time. | 06-03-2010 |
20120034877 | OPERATION METHOD AND RADIO DEVICE FOR CONTROLLING POWER SWITCH OF RADIO BASED ON MOVING SPEED - An operation method and a radio device for controlling power switch of radio based on moving speed are provided. The radio device comprises a speed estimator and an operator. The speed estimator is used for estimating the moving speed of the radio device, and the operator is used for comparing the moving speed of the radio device with a speed threshold value so as to turn on/off the power switch of the radio device. Thereby, the power switch of the radio device can be controlled based on the moving speed so as to decrease the time the radio device staying on, thus reducing the power consumption of the radio device. | 02-09-2012 |
20120152025 | METHOD, APPARATUS AND SYSTEM FOR MAPPING PIPELINE - The present invention provides an apparatus for mapping pipeline for use in a fluid pipeline, comprising: a pressure gauge that measures the pressure of the fluid in the fluid pipeline; a gyroscope that measures the angular velocity of the apparatus for mapping pipeline in the fluid pipeline; a processing module that collects and converts the pressure of the fluid and the angular velocity to a pressure data and an angular velocity data, respectively; and a data output module that outputs the pressure data and the angular velocity data. The present invention also provides a method for mapping pipeline and a system using the same that obtain the spatial layout of the fluid pipeline by analyzing the pressure data and the angular velocity data. | 06-21-2012 |
20140192799 | MULTI-MEDIA DATA RATE ALLOCATION METHOD AND VOICE OVER IP DATA RATE ALLOCATION METHOD - A multimedia bitrate adaption method for individual users wherein only a set of predetermined bitrates may be selected as the multimedia bitrate of the user. The predetermined bitrates are quantized into exponentially distributed levels, and the users' experiences corresponding to the predetermined bitrates are with the same intervals, thereby increasing the service capacity and improving user satisfaction. | 07-10-2014 |