Abstract: Disclosed are a light emitting device and a method for manufacturing the same. A light emitting diode comprises a plurality of Un-GaN layers and a plurality of N-type semiconductor layers, an active layer on the N-type semiconductor layer, and a P-type semiconductor layer on the active layer, wherein at least two of the Un-GaN layers and at least two of the N-type semiconductor layers are alternatively stacked on each other.

Abstract: The present invention relates a system for providing an interface of a web page. A system for providing an interface of a web page according to the present invention: a web server that generates pagelet information including a portion of web page providing information and when a terminal requests the transmission of the web page, transmits a web page including the pagelet information to the terminal; and a terminal that extracts a pagelet information from the web page to generate a pagelet and displays a pagelet capable of controlling a screen independent of the web page when the terminal requests the transmission of the web page to the web server and receives the web page from the web server. With the present invention, the terminal having the display device having a limited size can conveniently use the information of the web page using the pagelet that is a small-sized web page.

Abstract: A system and method for providing a multimedia object linked to the mobile communication network is provided. The method includes: (a) the mobile device detecting a ringing signal or call signal of a call; (b) the mobile device extracting a phone number from the detected ringing signal or call signal; (c) the mobile device requesting the expression object server for a multimedia expression object corresponding to the extracted phone number; (d) the expression object server searching a multimedia expression object corresponding to the extracted phone number and transmitting it to the mobile device; and (e) the mobile device displaying the multimedia expression object at least one of the times for originating a call, receiving a call, in the middle of a call and at the end of a call.

Abstract: Provided is a wireless sensor network including: a plurality of sensor nodes connected linearly; a sink node connected to the uppermost node among the sensor nodes; a control server; a gateway connected between the sink node and the control server to transmit and receive data; and a plurality of relay gateways. In the case where the plurality of the sensor nodes are divided into a predetermined number of subgroups, the sensor nodes located at the highest levels in the divided subgroups and which are connected to the relay gateways are designated as relay nodes. In the case where an amount of data stored in the relay node exceeds a predetermined threshold value, the relay node transmits the stored data through the connected relay gateway to the control server. Accordingly, in the case where the data of the sensor nodes are increased, it is possible to minimize a problem in that the increased data are lost during transmission.

Abstract: 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.

Abstract: Provided are a double linked wireless sensor network capable of performing bidirectional communication and a method of transmitting and receiving data. In each of nodes constituting the wireless sensor network, an active duration and an inactive duration are alternately repeated, and the active duration is configured to include an upstream duration, an intermission duration, and a downstream duration. Each of the downstream duration and the upstream duration is configured to sequentially include a second receive slot, a second receive processing slot, a first receive slot, a first receive processing slot, a transmit slot, a transmit processing slot, a first acknowledge slot, a first acknowledge processing slot, a second acknowledge slot, and a second acknowledge processing slot, and wherein bidirectional communication can be performed between the sink node and the terminal node in a single period of the active duration.

Abstract: Provided is a semiconductor light emitting device and a method for manufacturing the same. The semiconductor light emitting device comprises: a first conductive type semiconductor layer; an active layer on the first conductive type semiconductor layer; an undoped semiconductor layer on the active layer; a first delta-doped layer on the undoped semiconductor layer; and a second conductive type semiconductor layer on the first delta-doped layer.

Abstract: Disclosed are a light emitting device package and a method for fabricating the same. The light emitting device package includes: a trench formed in a substrate; a light emitting structure which is directly grown on a first area of the trench in the substrate; an electrode on the substrate; a wire bonding connecting the electrode with the light emitting structure; and a filler filling the trench.

Abstract: 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

Abstract: A portable communication device including a first housing and second housing, wherein the second housing is connected to the first housing so that it is rotatable around a first hinge axis while facing a top surface of the first housing to allow movement toward or away from the first housing. The device also includes a third housing connected to the second housing so that it is rotatable around the first hinge axis while facing the top surface of the first housing to allow movement toward or away from the first housing, and rotatable around a third hinge axis to allow rotational movement of a display. A battery pack, serving as a grip, is connected to the first housing so that it is rotatable around a third hinge axis while facing a bottom surface of the first housing to allow movement toward or away from the first housing. A sensing unit is provided to sense whether the battery pack is rotated.

Abstract: Provided are a semiconductor light emitting device and a method of manufacturing the same. The semiconductor light emitting layer comprises a first conductive type semiconductor layer, an active layer on the first conductive type semiconductor layer, and a second conductive type semiconductor layer on the active layer. The active layer comprises a quantum well layer, a quantum barrier layer, and a dual barrier layer.

Abstract: A recording medium for storing information for still pictures, and a recording/reproducing method and apparatus therefor, stores data for a plurality of still pictures and audio data added thereto in one file or a space having a logically one-dimensional order, rather than in each file, and still picture group information for separating the still picture data into a predetermined maximum number of groups in order to manage the still pictures at a group level. The still picture group information includes general information for still picture groups, and information for still pictures in each still picture group. The general information for each still picture group includes the start position of a first still picture in each still picture group, and the information for still pictures in each still picture group includes the sizes of video data and audio data for each still picture.

Abstract: A recording medium for storing information for still pictures, and a recording/reproducing method and apparatus therefor, stores data for a plurality of still pictures and audio data added thereto in one file or a space having a logically one-dimensional order, rather than in each file, and still picture group information for separating the still picture data into a predetermined maximum number of groups in order to manage the still pictures at a group level. The still picture group information includes general information for still picture groups, and information for still pictures in each still picture group. The general information for each still picture group includes the start position of a first still picture in each still picture group, and the information for still pictures in each still picture group includes the sizes of video data and audio data for each still picture.

Abstract: Embodiments of adaptively performing clutter filtering are disclosed. In one embodiment, by way of non-limiting example, an ultrasound system comprises: an ultrasound data acquisition unit configured to transmit and receive ultrasound signals to and from a target object to thereby output a plurality of ultrasound data for obtaining a color Doppler mode image, wherein the target object includes at least one of a tissue and a blood flow; and a processing unit placed in communication with the ultrasound data acquisition unit and being configured to locate the plurality of ultrasound data on a complex plane, the processing unit being further configured to perform a circle fitting upon the plurality of ultrasound data located on the complex plane and perform a downmixing and a clutter filtering upon the circle-fitted ultrasound data in consideration of speed of the tissue.

Abstract: Embodiments for setting eigenvectors for clutter signal filtering from Doppler signals in an ultrasound system are disclosed. In one embodiment, the ultrasound system includes: a Doppler signal acquisition unit configured to transmit and receive ultrasound signals to and from a target object to acquire first Doppler signals; and a processing unit configured to compute a plurality of eigenvectors by using the first Doppler signals and form second Doppler signals corresponding to directions of the computed eigenvectors, the processing unit being further configured to compute component values of the second Doppler signals and set eigenvectors for clutter signal filtering among the plurality of eigenvectors by using the computed component values.

Abstract: Disclosed is a method for testing a memory device with a long-term clock signal by automatically performing precharge only after activation. In this method, a signal for precharging the banks of the memory device is automatically generated only at the falling edge of an external signal when a signal for activating the banks is applied. Accordingly, the present invention ensures a stable test of the memory device, reducing the testing time.

Abstract: Provided are an indoor gas detecting apparatus and an indoor air purification system. The indoor gas detecting apparatus includes: a gas sensor unit composed of a plurality of gas sensors and a fine dust sensor; a controller controlling overall operations; a display unit; an alarm unit; and a communication unit transmitting/receiving data to/from an external apparatus. If a detected gas amount exceeds a predetermined permission level of each gas, the controller transmits an operation signal to an external automatic gas blocking apparatus or an external air purification apparatus so as to operate the automatic gas blocking apparatus or the air purification apparatus. Accordingly, not only fresh indoor air can be maintained but also an explosion or a fire can be prevented.

Abstract: 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.

Abstract: A method for updating firmware of a plurality of nodes constituting a wireless sensor network is disclosed. The wireless sensor network includes a server, a gateway and the plurality of nodes. The firmware to be updated is transmitted from the server through the gateway to an uppermost node. The firmware is sequentially transmitted to the plurality of nodes from the uppermost node to a lowermost node using wireless communication, and the respective nodes, which have received the firmware, record the firmware in their own memory. When the recording of the firmware is completed in all the nodes, boot programs of the respective nodes are run and the firmware, stored in the memory, is recorded in program memory, the firmware recorded in the nodes are executed, and the nodes constitute a new network while communicating with the peripheral nodes thereof.

Abstract: A high-solid UV-curable coating composition of the present invention, comprising a low viscosity multifunctional urethane acrylate oligomer, a UV-curable monomer, 10% by weight or less of an organic solvent and a photoinitiator has good workability and environmental characteristics and provides a coating film having improved properties including thermal shock resistance.