Patent application number | Description | Published |
20080307075 | Sensor-net system and sensor node - A sensor-Net system includes sensor nodes which are in intermittent operation so as to save power by repeating activated state and inactivated state at a regular interval. Synchronization of time in the system is executed by aligning to the intermittent operation of the sensor nodes. A management server issues a setTime command for configuring the time to each gateway node at a specified interval. Each router node sets or corrects the time of it based on the time received from the gateway node and thereafter turns ON the time configuration flag for each sensor node in order to expand the setTime command to all of its sibling sensor nodes. The router node, upon reception of a polling, which is a command request, from the sensor node, obtains the time at that time, then uses the time to generate a setTime command to transmit to that sensor node. | 12-11-2008 |
20090018899 | User collaboration system and server - There is provided a facile sound communication tool that can quickly communicate with a necessary partner when needed. The real-time contexts of users are detected from sensors that are worn by the users, and diverse sensors that are located around the respective users to obtain data. The data is transmitted to a server. A context analyzer of a processor in the server determines the busyness of the respective users on the basis of the data, and a collaboration controller controls a communication between the respective users on the basis of the busyness. | 01-15-2009 |
20100085202 | SENSOR DRIVE CONTROL METHOD AND SENSOR-EQUIPPED RADIO TERMINAL DEVICE - A network system including: a first sensor device which includes a first sensor unit which detects an action of a detection object; and a first transmission unit which transmits first data regarding the action and first identification information to a server via a first base station: a second sensor device which includes; a second sensor unit which obtains sensing data; and a second transmission unit which transmits second data including the sensing data and second identification information to the server via a second base station; wherein the server is configured to: associate the first and second data based on the detection of the action; to access predetermined normal data correlating data; and, detect an abnormal condition if a combination of the action detected via the first sensor unit and the sensing data obtained by the second sensor unit conflict with the correlated normal data. | 04-08-2010 |
20100161630 | Sensor Net System, Sensor Net System Data Managing Method, and Sensor Net System Data Managing Program - In order to easily provide data successively generated from a real world sensor network in a time series to a user, a unit for generally and flexibly performing mapping between a source for generating physical electronic information (for example, a tiny sensor node) and sensing data to be provided to the user is provided. Therefore, a manager of the sensor network is composed of a device management table for mapping among a wireless sensor node, a wireless base station, and a data managing server, a real world model table capable of including device information and giving plural attributes, a registration/search processing unit for registering/searching that information, and a data manager for data mapping between the tables. | 06-24-2010 |
20100183000 | VIDEO DELIVERING SYSTEM, VIDEO DELIVERING DEVICE, AND SYNCHRONIZATION CORRECTING DEVICE - The video receiving device delivers reproducible video streams by synchronizing video images. The video delivering device determines the delivery time for each RTP packet based on the time information for plural video streams corresponding to plural contents, adds the determined delivery time (timestamp) to each RTP packet, and delivers RTP packets by using the counter common among plural contents. The video relaying device corrects the transfer timing for RTP packets based on the counter common among plural contents and the delivery time (timestamp) and sends them to the video receiving device. The video receiving device plays back the video images from the received RTP packets. | 07-22-2010 |
20100194894 | DATA ACQUISITION SYSTEM AND TRANSMISSION CONTROL DEVICE - A transmit-side transmission control device for sending data generated by a data generator device to a data utilization point receives and retains notification of the allowable data transmission quantity from a receive-side transmission control device, and adjusts the data quantity sent from the data generator device so as to fit within that allowable data transmission quantity range, and/or when a request is issued to change that data transmission quantity, the receive-side transmission control device is notified of that allowable data transmission quantity change request. The receive-side transmission control device retains the respective allowable data transmission quantities for transmit-side transmission control device, and when a change request is issued, reallocates the allowable data transmission quantities for all transmit-side transmission control devices to fit within the data processing load range stored beforehand within the data utilization point, and notifies the corresponding transmit-side transmission control device of these reallocated allowable data transmission quantities. | 08-05-2010 |
20110182196 | NETWORK SYSTEMS, NETWORK INTERCONNECTION DEVICES, AND DATA TRANSMISSION SCHEME - A network system includes one or more terminals which transmit acquired data to a first network, a network interconnection device which is connected to the terminal via the first network and which receives the data from the terminal, and a management server which is connected to the network interconnection device via a second network and which receives the data from the network interconnection device; the terminal transmits the same data to the network interconnection device via the first network by a frequency corresponding to redundancy; the data contains the priority according to the contents of the data; and the network interconnection device acquires the communication quality of the second network and instructs the terminal to transmit the data according to redundancy determined based upon the acquired communication quality and the priority. | 07-28-2011 |
20110196955 | Sensor Network System for Managing the Latest Data and History Data - In a sensor network system comprising a sensor terminal and a management server, the sensor terminal transmits observation data acquired using the sensor, the management server has a latest data storage manager which manages the latest observation data among observation data received from the sensor terminal, a history data storage manager which manages the history of the observation data from any time when data was received from the sensor terminal to the latest observation data, and a missing data manager which manages missing history data, and compensates the missing history data based on a predetermined rule, and when a request for such observation data is received, at least one of the latest observation data managed by the latest data storage manager, and history data wherein the missing data has been compensated and managed by the history data storage manager, is output according to the type of request. | 08-11-2011 |
20140161456 | NETWORK SYSTEM, STATION-SIDE APPARATUS, AND METHOD OF CONTROLLING COMMUNICATIONS - An aspect of this invention is a network system including subscriber apparatuses and a station-side apparatus for communicating with the subscriber apparatuses. The station-side apparatus communicates with the subscriber apparatuses using wavelengths. The station-side apparatus determines a wavelength to be used by each of at least one subscriber apparatus of the subscriber apparatuses based on effective transmission rates used by the subscriber apparatuses in communications with the station-side apparatus. | 06-12-2014 |