Patent application number | Description | Published |
20100208637 | METHOD OF TRANSMITTING/RECEIVING DATA FOR WIRELESS SENSOR NETWORK AND SENSOR NODE - A method of transmitting and receiving data for a wireless sensor network system is disclosed. Transmission and reception intervals for a small amount of data and for a large amount of data are set. A sensor node checks data requested to be transmitted. If the data is a small amount of data, the sensor node transmits the data to a higher or lower communication node during the transmission interval for a small amount of data. If the data is a large amount of data, the sensor node divides the large amount of data and then transmitting resulting data to the higher or lower communication node during the transmission interval for a large amount of data. The sensor node receives the small amount of data during the reception interval for a small amount of data and the large amount of data during the reception interval for a large amount of data. | 08-19-2010 |
20120147731 | APPARATUS OF MULTIPLEXING DATA TRANSMISSION PATH FOR WIRELESS SENSOR NETWORK - The present invention is to provide a method and apparatus for multiplexing a sync node and a gateway of a wireless sensor network, which is capable of allowing communication of the wireless sensor network to be normally performed by multiplexing paths of the sync node and the gateway of the wireless sensor network even in the case where any one of the sync node and the gateway abnormally operates and by transmitting upstream data and downstream data through a path selected among the duplexed paths according to characteristics of the wireless sensor network. | 06-14-2012 |
20130329719 | TERMINAL NODE DEVICE AND WIRELESS SENSOR NETWORK SYSTEM USING THE TERMINAL NODE DEVICE - Provided is a terminal node device including: a communication module communicating with an external sink node device and another terminal node device; sensor modules; and a control unit allowing the terminal node device to be operated while allowing the terminal node device to transition into one of the initial, synchronous, and leave states. In the initial state, the control unit scans a received message; if a beacon message is received from a sink node device, the control unit transitions into the synchronous state; and if not for a predetermined time, the control unit transitions into the leave state. Accordingly, if a beacon message is received from the sink node device, the terminal node device transitions into the synchronous state to constitute a server-based wireless sensor network; and if not, the terminal node device transitions into the leave state to constitute an independent sensor network. | 12-12-2013 |
Patent application number | Description | Published |
20110001612 | COMMUNICATION METHOD FOR A MOBILE SENSOR NODE IN A WIRELESS SENSOR NETWORK - A communication method for a mobile sensor node in a wireless sensor network includes: in a state that the mobile sensor node performs synchronization by a message reception interrupt from a parent sensor node and determines an uplink active duration and a downlink active duration, transmitting a message to the parent sensor node in the transmitting duration of the uplink active duration, receiving and processing messages from the parent sensor node and sensor nodes linearly connected around the parent sensor node in the receiving duration of the uplink active duration, and resetting a new parent sensor node using the received signal strength indications RSSIs of the received messages; and transmitting a message to the parent sensor node in the transmitting duration of the downlink active duration, checking whether or not a message is received from the parent sensor node in the receiving duration of the downlink active duration, if the message is not received from the parent sensor node, determining that time synchronization fails and resetting a new parent sensor node, and if the message is received from the parent sensor node, performing time synchronization according to a message reception interrupt from the parent sensor node. | 01-06-2011 |
20110047538 | METHOD FOR UPDATING FIRMWARE OF SENSOR NODES ON A WIRELESS SENSOR NETWORK AND FIRMWARE UPDATER USING FOR THE SAME METHOD - Provided is a firmware updating method for a new node in a wireless sensor network including a plurality of nodes. The firmware updating method for the new node (a) a new node searching for neighbor nodes located within a predetermined distance; (b) the new node designating a parent node among the searched neighbor nodes; (c) in the case where the plurality of nodes include a join receiving state for joining the new node to the wireless sensor network, the designated parent node and the new node establishing a communication link by using the join receiving state; (d) the parent node transmitting firmware to the new node through the established communication link; and (e) the new node receiving the firmware from the parent node, updating existing firmware with the received firmware, and driving the updated firmware to be jointed to the wireless network. In the case where the new node is to be joined to the wireless sensor network, it is possible to directly update the firmware of the new node on the spot without recalling the node to a factory. | 02-24-2011 |
20130214917 | METHOD AND SYSTEM FOR PROVIDING A VEHICLE THEFT PREVENTION SERVICE - A vehicle theft prevention service method and system is capable of estimating theft of a vehicle even in the case where such a two-wheeled vehicle can be moved without start-up to be stolen and a vehicle theft prevention service method and system where a user is informed of location of a vehicle at the time of estimating theft of the vehicle, so that it is possible to accurately determine the theft based on the location of the vehicle at the time of estimating the theft of the vehicle. The vehicle theft prevention service system includes an electronic key and a theft monitoring device. The theft monitoring device is installed in a vehicle and determines that the vehicle is in a theft-estimated state and transmits an alarm message if a sensed acceleration value obtained by sensing a movement of the vehicle is a predetermined value or more. The electronic key outputs an alarm if the alarm message is received. Herein, the external apparatus may be a user terminal or a server. | 08-22-2013 |
Patent application number | Description | Published |
20130308926 | RECORDING MEDIUM, REPRODUCING DEVICE FOR PERFORMING TRICK PLAY FOR DATA OF THE RECORDING MEDIUM, AND METHOD THEREOF - Provided is a recording medium reproducing device including a driver configured to load a recording medium storing video data, including a plurality of video frames, and additional information about the plurality of video frames included in a plurality of layers, respectively, when the recording medium is loaded therein; a user interface configured to receive a trick play command; a video processor which processes the video data; and a controller configured to select at least one layer to be decoded from among the plurality of layers based on a trick play speed determined according to the trick play command and the additional information, control the video processor to decode video frames of the selected layer, and performs a trick play corresponding to the trick play speed using the decoded video frames. | 11-21-2013 |
20140098289 | CONTENT PROCESSING APPARATUS FOR PROCESSING HIGH RESOLUTION CONTENT AND METHOD THEREOF - A content processing apparatus is provided. The content processing apparatus includes an input unit which receives high resolution content, a data processor which generates a video frame by processing the high resolution content, and a controller which, if an output resolution of a display panel, which is to display the video frame, is lower than the resolution of the high resolution content, controls the data processor to form an object corresponding to the high resolution content as an object for low resolution and add the object for low resolution to the video frame. | 04-10-2014 |
20140099066 | CONTENT PROCESSING APPARATUS FOR PROCESSING HIGH RESOLUTION CONTENT AND CONTENT PROCESSING METHOD THEREOF - A content processing apparatus is provided, which includes an inputter configured to receive an input of high resolution content, a data processor configured to generate video frames by processing the high resolution content, and a controller configured to control the data processor to configure an object that corresponds to the high resolution content as an object for low resolution and to add the object to the video frame if an output resolution of a display panel to display the video frames is a low resolution. | 04-10-2014 |
20140119712 | RECORDING MEDIUM, REPRODUCING DEVICE FOR PROVIDING SERVICE BASED ON DATA OF RECORDING MEDIUM, AND METHOD THEREOF - A reproducing device is provided. The reproducing device includes: a driver configured to load a recording medium in response to the recording medium being attached, wherein the recording medium records video data and additional information encoded according to a High Efficiency Video Coding (HEVC) method; a data processor configured to process the video data; a controller configured to provide a service corresponding to the additional information. The service includes at least one of a trick play service, an interested region enlargement service, and an object adjusting service. | 05-01-2014 |