Abstract: A mobile system, a service system, and a service providing method for securely transmitting private information for use in a service are provided. The mobile system maintains at least one user data and identification data with respect to the user data used for processing at least one service, sets a session key for the service system, and encrypts service data identified based on the identification data to transmit to the service system.

Abstract: A data aggregation method and data aggregation apparatus are provided. More particularly the data aggregation method includes: generating a plurality of data aggregation trees according to connection relationships between clusters that constitute a sensor network using a geographical code (GGC), selecting a single activation zone for each of the clusters which configures each of the plurality of data aggregation trees, selecting a maximum energy tree having a maximum total residual energy from the plurality of data aggregation trees, based on the single activation zone, and generating a tree list including activation zone information which corresponds to the maximum energy tree, and information about the maximum energy tree.

Abstract: A mobile system, a service system, and a key authentication method to manage a key in a local wireless communication are provided. The mobile system and the service system may generate a hash value with respect to a public key of the service system using an identical hash function, and output a result corresponding to the hash value.

Abstract: A method of sharing contents among devices, the method includes a first device and a second device performing a time synchronization, the first device receiving, from a user, a time stamp with respect to contents being replayed by the second device, the first device transmitting the time stamp to the second device, the second device transmitting a contents list corresponding to the time stamp to the first device, the first device requesting the second device for contents selected by the user from among the contents list, and the second device providing the requested contents to the first device.

Abstract: A recognition control method among devices, the recognition control method includes receiving a second device recognition signal via a wireless signal module of a first device from a wireless signal module of a second device, and recognizing that the second device is located in a direction from the first device through the second device recognition signal. With respect to the second device, the method includes receiving a first device recognition signal via the wireless signal module of the second device from the wireless signal module of the first device, and recognizing that the first device is located in a direction from the second device through the first device recognition signal.

Abstract: A system for managing an object base on a criterion in a display environment, includes a condition analysis unit which selects the object having metadata information corresponding to condition information of the criterion, and a display manager which manages an arrangement of the object according to an arrangement of the criterion with respect to the display environment.

Abstract: A method of acquiring contents between a client terminal and a local server, the method including the client terminal photographing or recording partial information of predetermined contents according to an input of a user, the client terminal transmitting the partial information of contents to a predetermined local server, the local server analyzing the partial information of contents and retrieving contents or content-related information corresponding to the partial information of contents, and the local server transmitting the retrieved contents or content-related information to the client terminal.

Abstract: A network device driver includes a fetching/hooking module to fetch/hook hardware data and/or a hardware event of the communication terminal; a packet assembly module to packetize the hardware data and/or the hardware event; a packet release module to recover the packetized hardware data and/or the hardware event, which are/is received from another terminal connected with the communication terminal via a wired/wireless communication network; and a transmission module to receive/transmit the packetized hardware data and/or the hardware event from/to another communication terminal.

Abstract: A projector control system includes a location measurement unit which measures location information of a projector; a projection information unit which generates projection information using the location information; a communication unit which transmits the projection information to the projector; and an image control unit which controls the projector to project an image according to the projection information.

Abstract: An apparatus and method of determining a number of data transmissions in a sensor network are provided. More particularly, an apparatus for determining a number of data transmissions preferably includes an interest zone detector for detecting an interest zone based on a user query, a zone determination unit for determining whether the interest zone is overlapped with a sensing zone, a zone calculator for calculating an overlap amount when the interest zone is overlapped with the sensing zone, and a transmission number determination unit for determining a number of data transmissions according to the overlap amount.

Abstract: A data aggregation method and data aggregation apparatus are provided. More particularly the data aggregation method includes: generating a plurality of data aggregation trees according to connection relationships between clusters that constitute a sensor network using a geographical code (GGC), selecting a single activation zone for each of the clusters which configures each of the plurality of data aggregation trees, selecting a maximum energy tree having a maximum total residual energy from the plurality of data aggregation trees, based on the single activation zone, and generating a tree list including activation zone information which corresponds to the maximum energy tree, and information about the maximum energy tree.

Abstract: A method and apparatus for allocating a radio resource in a wireless sensor network are provided, in which a signal requesting a radio resource allocation is received from any one of sensors included in the wireless sensor network, an amount of remaining energy is compared with respect to each zone where a sensor transmitting the signal is included, an order of zones, from a zone comprising a greatest amount of remaining energy to a zone having a least amount of remaining energy, is determined as a result of the comparison, and a time slot is allocated to a sensor of each zone according to the determined order of zones, when transmitting a frame for the radio resource allocation.

Abstract: A method and apparatus for establishing a path in a wireless network are provided where the method includes receiving location information about a first neighbor node and a second neighbor node, the first neighbor node being located within a range of a first hop from a source node, the second neighbor node being located within a range of a second hop from the source node, determining a direction of a point where the second neighbor node is located, based on the source node, by using the received location information; detecting a particular second neighbor node having a same direction of a point where a destination node is located, based on the source node, and limitedly establishing a path via the detected second neighbor node, when the source node establishes a path for transmitting predetermined data to the destination node.

Abstract: An apparatus and method of determining a number of data transmissions in a sensor network are provided. More particularly, an apparatus for determining a number of data transmissions preferably includes an interest zone detector for detecting an interest zone based on a user query, a zone determination unit for determining whether the interest zone is overlapped with a sensing zone, a zone calculator for calculating an overlap amount when the interest zone is overlapped with the sensing zone, and a transmission number determination unit for determining a number of data transmissions according to the overlap amount.

Abstract: A presentation apparatus includes: a communication connection establishing unit establishing a communication connection with a plurality of receiving terminals and a source terminal, the source terminal having a token corresponding to an authority of controlling a presentation; a presentation data relay unit receiving presentation data from the source terminal, broadcasting a presentation image to the plurality of receiving terminals to display the presentation image of the received presentation data on each screen of the plurality of receiving terminals, and broadcasting voice information to the source terminal and the plurality of receiving terminals to output, from each terminal, the voice information being inputted from any one of the source terminal and the plurality of receiving terminals; and a presentation control unit controlling a transmission/reception of the presentation image and the voice information, and controlling a receiving terminal requesting the token to obtain the token.

Abstract: A picture image providing method and a picture-taking device using the method are provided. The picture-taking device includes: a picture-taking module generating a picture image by taking a picture of a photography object via a camera; a transmission location management module managing a target image for identifying the photography object included in the picture image, and transmission location information for transmitting the picture image, in correspondence to the target image; an area selection module selecting an area on the picture image corresponding to the target image; an image identification module identifying the target image corresponding to the photography object, included in the picture image, using the target image and the selected area on the picture image; and a picture image transmission module identifying the transmission location information corresponding to the identified target image, and transmitting the picture image to a location corresponding to the transmission location information.

Abstract: Disclosed are a light absorbent agent polymer for organic anti-reflective coating which can prevent diffused light reflection of bottom film layer or substrate and reduce standing waves caused by a variation of thickness of the photoresist itself, thereby, increasing uniformity of the photoresist pattern, in a process for forming ultra-fine patterns of photoresist for photolithography by using 193 nm ArF among processes for manufacturing semiconductor devices, and its preparation method. Also, the present invention discloses an organic anti-reflective coating composition comprising a light absorbent agent polymer for the organic anti-reflective coating and a pattern formation process using the coating composition.

Abstract: Disclosed are a light absorbent agent polymer for organic anti-reflective coating which can prevent diffused light reflection of bottom film layer or substrate and reduce standing waves caused by a variation of thickness of the photoresist itself, thereby, increasing uniformity of the photoresist pattern, in a process for forming ultra-fine patterns of photoresist for photolithography by using 193 nm ArF among processes for manufacturing semiconductor devices, and its preparation method. Also, the present invention discloses an organic anti-reflective coating composition comprising a light absorbent agent polymer for the organic anti-reflective coating and a pattern formation process using the coating composition.

Abstract: A network-connecting apparatus for a first private network having a first network device. The apparatus includes a direct connection part for providing a direct connection in response to a connection request from the first network device, said request being a request to connect to a second network device in a second private network. Further, an address change part is provided for changing subnet numbers of origination and destination addresses of a packet transferred outside the first private network through the direct connection.

Abstract: An apparatus and method for testing a ubiquitous service or a ubiquitous device using a uniform object model are provided. Because a virtual ubiquitous environment is constructed with devices, services, users, layouts, and the like, physical construction of the ubiquitous environment to test services or devices is not needed. Therefore, the effectiveness of the ubiquitous device or service can be confirmed without requiring a ubiquitous environment to be physically constructed. Additionally, time or cost of constructing a ubiquitous environment can be reduced. Because a variety of environments can be easily constructed through the test of devices or services, the performances of the devices or services can also be improved.