Abstract:
Provided is a routing optimization method on a nested mobile network and a computer-readable recording medium recording a program using the same. The method includes the steps of : a) interactively transmitting a routing optimization message including a network prefix of an internal interface at each mobile router on the nested mobile network; b) creating/updating a forwarding table based on the transmitted routing optimization message; and c) when a mobile router (MR) transmits a received packet, comparing a destination Internet Protocol (IP) address of the packet with an entry of the forwarding table and forwarding the packet to a corresponding interface based on information of the forwarding table.
Abstract:
Provided are a method and apparatus for constructing a peer-to-peer (P2P) overlay network. The method of constructing a peer-to-peer (P2P) overlay network to obtain ID values of a plurality of nodes using a distributed hash table (DHT) and registering a node wishing to join the P2P overlay network where the plurality of nodes are sequentially located based on the obtained ID values, includes: (a) transmitting a join request message from the node wishing to join the P2P overlay network to a key node of the P2P overlay network; (b) a first node that received the join request message determining whether an ID value of the node wishing to join the P2P overlay network is a between value of an ID value of the first node and an ID value of a second node next to the first node, while sequentially transmitting the join request message to the plurality of nodes; and (c), if the first node determines that the ID value of the node wishing to join the P2P overlay network is the between value, registering the node wishing to join the P2P overlay network between the first and second nodes. Therefore, it is possible to more easily and efficiently search for sharing resources stored by each of the nodes.
Abstract:
The present invention relates to a terminal including an ID-based processing module that uses the ID of a transmitter or the ID of a receiver, as part of or an extension of the file name of a file that the transmitter transmits to the receiver. By doing so, a user can recognize a secure file with the naked eye, and a connection program can be designated to an extension. Therefore, when a user decodes or verifies a file, the designated program may be easily used.
Abstract:
A method of determining a location of a mobile communication terminal, the method including: receiving base station identification signals from a plurality of base stations; calculating distance ratios between the plurality of base stations and the mobile communication terminal, from the received base station identification signals; generating first variables and second variables from the distance ratios; and determining the location of the mobile communication terminal from the first variables and the second variables is provided.
Abstract:
Disclosed is a chemical mechanical polishing pad formed at a polishing surface thereof with a plurality of concentric wave-shaped grooves having different radiuses while having the same shape. Each groove has a desired depth, width, and shape. The chemical mechanical polishing pad provides effects of effectively controlling a flow of slurry during a polishing process, thereby achieving a stability in the polishing process in terms of a polishing rate, and achieving an enhancement in the planarization of a wafer.
Abstract:
Provided is a method and system for determining a position of a mobile communication device in a mobile communication network, the method including the steps of: receiving a plurality of pieces of base station signal information, the base station signal information including base station identification information, the base stations transmitting the base station signal information to the mobile communication device; determining a base station corresponding to each of the plurality of pieces of base station signal information based on the base station identification information; generating vector information associated with the plurality of the base stations based on geographic information corresponding to the determined base station; and generating location information of the device according to the generated vector information, wherein the step of generating the vector information comprises the steps of: determining a predetermined vector proceeding order associated with the plurality of the base stations according to the base station signal information; and sequentially determining a vector with respect to the plurality of the base stations according to the determined vector proceeding order, with the base station in which the device is currently communicating with as a starting point.
Abstract:
Disclosed is a chemical mechanical polishing pad formed with holes, grooves or a combination thereof. The chemical mechanical polishing pad is characterized in that a plurality of concentric circles each having grooves, holes, or a combination thereof are formed at a polishing surface of the polishing pad. The chemical mechanical polishing pad provides effects of effectively controlling a flow of slurry during a polishing process, thereby achieving a stability in the polishing process in terms of a polishing rate, and achieving an enhancement in the planarization of a wafer.
Abstract:
Disclosed is a chemical mechanical polishing pad formed at a polishing surface thereof with micro-holes each having a desired cross-sectional area while having a desired depth. The shape, size, and density of the micro-holes can be optionally adjusted. The chemical mechanical polishing pad provides an effect of maintaining a desired polishing rate during a polishing process. In accordance with the present invention, the micro-holes can have diverse arrangements depending on given process conditions.
Abstract:
Disclosed is a method for forming micro-holes, perforated holes, and/or grooves on a polishing pad using a laser beam and a mask. This method involves the steps of determining a pattern of micro-holes, grooves, and/or perforated holes to be formed on a polishing pad, inputting the determined pattern to a computer numerical control (CNC) controller, selecting a mask corresponding to the determined pattern, positioning the mask under a laser device, parallel to the polishing pad, and driving the laser device adapted to irradiate the laser beam and a table adapted to conduct a three-dimensional movement and rotation while supporting the polishing pad, under the control of the CNC controlled, thereby irradiating the laser beam from the laser device through the mask onto the polishing pad according to the inputted pattern.
Abstract:
A method for determining a position of a mobile terminal in a mobile network including a plurality of base stations (BSs) and repeaters (REs) is provided. In the method, a plurality of BS signal data is received, and the BS signal data includes propagation delay time data and is transmitted from the BSs to the mobile terminal. The BSs or the REs corresponding to the respective BS signal data is determined on the basis of the propagation delay time data. Vector data related to the BSs or REs is generated on the basis of geographic data corresponding to the determined BSs and REs. Position data of the mobile terminal is generated according to the generated vector data. In the step of generating the vector data, a progression order of vectors related to the BSs and the REs is determined according to the BS signal data. The vectors are sequentially determined according to the determined vector progression order. The vectors starts at a BS or a RE currently communicating with the mobile terminal. The present invention makes it possible to utilize the existing BS signal data as they are, to determine a position of a mobile terminal more accurately, and to continuously provide accurate position data regardless of a change in a mobile network.