Abstract:
PURPOSE: A traffic controller of an ATM(Asynchronous Transfer Node) switching center, and a method for improving a network throughput using a packet discarding algorithm having two threshold values, are provided to improve a cell loss due to a buffer overflow, by sending a reverse pressure signal or discarding partial packet according to a cell occupation rate and the threshold values. CONSTITUTION: A cell classification part(10) classifies an input cell. A cell count part(40) counts the number of input cells, monitors the last cell of a packet, and counts the number of cells which are provided from buffers(20,30). A control part(50) executes a partial packet discarding control algorithm, and controls transmission of data, on a basis of the count value output from the cell count part(40) and the number of cells which are remaining in the buffers(20,30). The buffers(20,30) stores the data according to a service level.
Abstract:
PURPOSE: A building energy saving device based on ontology and a method thereof are provided to allow a central control system to automatically control lamps, power, or a cooling and heating system of the building corresponding to a situation of the building based on the ontology. CONSTITUTION: An interface unit(110) receives an external situation and a feature of a building and an internal situation and a feature of the building from a building information providing module in the building. A building information definition unit(120) defines the situations and the features as building information. An ontology expression unit(130) expresses the building information as an ontology model. An energy management unit(140) selects an energy management service based on the ontology model and saves energy of the building by using the selected energy management service. [Reference numerals] (110) Interface unit; (120) Building information definition unit; (130) Ontology expression unit; (140) Energy management unit
Abstract:
PURPOSE: A media sharing device and a method thereof are provided to share converted media among the same kind of terminals, thereby optimizing conversion efficiency and the use rate of media data. CONSTITUTION: A terminal information management unit(240) requests profile information to a connected media player terminal and manages the profile information received from the media player terminal. A media information management unit(250) determines conversion of media data provided to the media player terminal based on the profile information and checks media conversion information suitable for the type of the media player terminal. A media conversion unit(260) converts the media data into data suitable for the type of the media player terminal. A data processing unit(270) provides media data suitable for the type of the media player terminal or the media data, which is converted by the media conversion unit, to the media player terminal. [Reference numerals] (210) Control unit; (220) Communication unit; (230) Storage unit; (240) Terminal information management unit; (250) Media information management unit; (260) Media conversion unit; (270) Data processing unit;
Abstract:
PURPOSE: An apparatus for charging both mobile phone and laptop computer is provided to charge the notebook computer and mobile telephone at the same time. CONSTITUTION: The power source converting portion(130) for the notebook computer converts the input power source to the DC input voltage of the notebook computer. The DC power supply having the DC input voltage of the notebook computer is outputted to the notebook computer. The power source converting portion(160) for the mobile telephone converts the input power source to the DC input voltage of the mobile telephone. The DC power supply output unit(170) for the mobile telephone outputs the DC power supply output unit for the mobile telephone to the mobile telephone.
Abstract:
본 발명은 유비쿼터스 환경에서 상황에 적절한 자동화된 서비스를 제공하기 위해 상황 정보를 생성하고 이를 통합 관리하는 방법 및 시스템에 관한 것이다. 본 발명에 따른 상황정보 통합 관리 방법은, 센서에 의해 감지된 실세계 데이터를 수신하는 단계와, 상기 수신된 실세계 데이터를 해석하여 컴퓨터가 인지할 수 있는 상황정보를 생성하는 단계와, 상기 상황정보를 선정된 형식으로 통합하고 저장하는 단계와, 상기 변환된 상황 정보를 그래픽 사용자 인터페이스를 이용하여 디스플레이하는 단계를 포함한다. 상기 방법은, 상기 변환된 상황정보가 정상 범위를 벗어나는지를 판단하는 단계와, 상기 정상범위를 벗어나는 것으로 판단되면 긴급 플래그가 설정된 소정의 메시지를 생성하여 유비쿼터스 에이전트로 전송하는 단계를 더 포함하여 상황에 적절한 서비스가 제공될 수 있도록 한다. 유비쿼터스, 상황 정보, 센서, 상황인지 프레임워크