Abstract:
An apparatus for executing a MAC application program, and an apparatus and a method for task scheduling of a sensor node based on an MAC are provided to shorten the development period of an MAC program by efficiently re-using a MAC application program at various hardware platforms. An MAC(Medium Access Control) program unit(220) executes a MAC program, and at least one hardware interface unit(211) includes hardware control subroutines that are approaching a hardware device of a hardware platform(201). When the MAC program unit calls the hardware control sub-routines, a hardware standard interface unit(212) executes a hardware control sub-routine that corresponds to the one hardware platform.
Abstract:
A method for configuring a network of nodes with a tree structure is provided to reduce network reconfiguration overhead caused by autonomous withdrawal of the nodes or consumption of a battery in a sensor network with a tree structure. A method for configuring a network of nodes with a tree structure comprises the following several steps. It is checked whether or not the first node has child nodes, and withdrawal is requested to a parent node if the first node has not child nodes(101,103). One among the child nodes is selected on the basis of remaining power of the child nodes if the first node has child nodes(101,105,107). The first node exchanges positions with the selected child node and withdrawal is requested to the parent node if the selected child node has no child node(109,111-115). The steps of 105,107,109, and 111-115 are repeated if the selected child node has child nodes(109,117,119).
Abstract:
본 발명은 3GPP IMS(IP Multimedia Sub-System) 망을 활용하는 환경에서 IP망에 연결된 두 단말 간 화상 통화 내용을 기록하기 위한 방법 및 시스템에 관한 것이다. 본 발명에 따른 3GPP IMS망에서 화상 통화 내용 기록 시스템은, 3GPP IMS망에 접속 가능한 복수의 사용자 단말(UA)과; 상기 복수의 사용자 단말(UA)에 연결되며, 패킷의 라우팅 및 전달하기 위한 프록시호세션제어부(P-CSCF)와; 상기 사용자 단말(UA)의 세션을 제어하기 위한 서빙호세션제어부(S-CSCF)와; 상기 사용자 단말(UA)의 위치 관리, 프로파일 관리 및 인증 기능을 수행하며, 상기 서빙호세션제어부(S-CSCF)의 수집 기능을 담당하는 홈가입자서버(HSS); 및 상기 복수의 사용자 단말(UA)과 연결된 데이터 경로를 갖고, 상기 복수의 사용자 단말(UA) 사이에 전송되는 데이터를 기록하기 위한 기록프락시서버를 포함하는 것을 특징으로 한다. IMS, UA, CSCF, HSS, 화상전화
Abstract:
PURPOSE: A method for collecting area charge on the Internet and a method for authenticating a user therefor are provided to realize regionally dispersed charge collecting. CONSTITUTION: An Internet connected user requests an Internet contents provider to a charge collecting device, MF router(S1). The charge collecting device searches for user data through a temporary user data table(S2). If the user data does not exist, the charge collecting device searches for user data at an authentication/billing server(S4-S5). If the user data do not exist, the charge collecting device sends guide information and a register form to a user(S7). The user registers user's data at the authentication/billing server and the temporary user data table(S8). The user receives a response to the registration and uses wanted information(S9-S11).
Abstract:
PURPOSE: A device and method for a small amount payment accounting through an interlock with an advanced information communication processing system is provided to prevent an outflow of credit information by executing a small amount payment using a telephone network and to enable a seller to reduce an additional cost by withdrawing a commodity price through a communication network businessman. CONSTITUTION: A small amount payment service is supplied through an interlock with an AICPS(Advanced Information Communication Processing System) in an environment for supplying an electronic payment service. An AICPS telephone micro billing broker(23) is mounted in the AICPS, processes commodity data of a subscriber of a telephone network or an ISDN(Integrated Service Digital Network), and charges a server function in a small amount payment accounting. An AICPS telephone micro billing agent(25) is mounted in a server of an information provider based on a shopping mall(24) and operated, connects to the subscriber, requests to process a purchase data to the AICPS telephone micro billing broker(23), and charges a client function in the small amount payment accounting. The AICPS telephone micro billing broker(23) is connected to a PSTN(Public Switched Telephone Network) through a modem of the subscriber and recognizes a telephone number of the subscriber.
Abstract:
본 발명에 따른 CAN 통신의 오류 검출 장치는 CAN 프로토콜의 오류 검출을 위한 패리티 비트 및 CRC를 설정하는 설정부, 패리티를 이용한 CAN 프로토콜을 전송하는 송신부, CAN 노드 사이의 데이터를 수신하고, 수신된 ACK 비트를 송신부로 전달하는 수신부 및 수신된 패리티를 이용한 CAN 프로토콜의 패리티 비트 및 CRC를 통해 데이터 오류를 검출하는 검출부를 포함한다.