Abstract:
본발명은 RFID 태그에관한것으로, 특히내장된비휘발성메모리의초기화기능을자동수행하는자동초기화기능을갖는 RFID 태그와태그내장메모리초기화방법에관한것으로, 태그의내부메모리초기화데이터를저장하는룩업테이블과, RFID 태그의전반적인동작을제어하되, 리더기로부터의초기화명령유무에따라자체초기화진행을요청하는 RFID 태그컨트롤러와, 플래그상태를저장하며상기자체초기화진행요청명령에따라상기메모리초기화요청신호를출력하는플래그상태처리부와, 상기메모리초기화요청신호입력에따라상기룩업테이블과 RFID 태그컨트롤러로부터출력되는데이터중어느하나를선택출력하기위한멀티플렉서와, 상기메모리초기화요청신호입력에따라상기멀티플렉서로부터출력되는메모리초기화데이터를태그내부메모리에라이팅하여메모리초기화하는메모리컨트롤러를포함함을특징으로한다.
Abstract:
The present invention relating to an effective cooperation structure between a CPU and a GPU provides a cooperation system which enhances cooperation efficiency between a CPU and a GPU and a method thereof by reducing a CPU load through an extra unit controlling a GPU and providing information on data addresses used for work without direct copying of data when the work is allocated. A method for keeping the cache coherency which is adequate to solve the discord in cache of a CPU and a GPU is provided to keep cache coherency between a CPU and a GPU by providing a protocol used to keep cache coherency between existing multi-CPUs for the cache coherency.
Abstract:
Proposed are a fabric having a multi-layered circuit with high reliability and a method for manufacturing the same. The proposed fabric having a multi-layered circuit comprises: a base layer; a first conductive pattern formed on the base layer; a second conductive pattern formed so at least a portion crosses the first conductive pattern; and an insulating pattern formed at a crossing portion of the first conductive pattern and the second conductive pattern.
Abstract:
PURPOSE: A management mechanism of a highly available wind power control system is provided to remove or recover broken critical redundant components by extracting work data on the broken critical redundant components. CONSTITUTION: A wind power control system comprises a plurality of wind power generation control systems and an integrated management control system(200). The wind power generation control systems control the operation of a wind power generator. The integrated management control system monitors the troubles generated from the components of the wind power generation control systems. [Reference numerals] (210-1,210-2,210-3,210-M) Application; (225-1,225-2,225-3,225-N) Daemon; (231) Network interface manager; (233) Data manager; (235) System control manager; (237) Watchdog manager; (240) Hypervisor; (245) Global watchdog manager; (250) Hardware
Abstract:
A small low-power embedded system and a preemption avoidance method thereof are provided to avoid preemption of a task based on dual priority scheduling while guaranteeing simultaneous operations of tasks. At least one periodic task is registered in a periodic run queue(110). At least one aperiodic task is registered in an aperiodic run queue(120). At least one device is used in running the periodic and aperiodic tasks. A scheduler(150) periodically runs a periodic task of the periodic run queue. The scheduler periodically runs an aperiodic task of the aperiodic run queue. The scheduler runs the periodic task and the aperiodic task by avoiding preemption of a task based on dual priority scheduling while guaranteeing simultaneous operations of tasks.
Abstract:
A differential transconductance circuit and a channel selection filter using the same in a wireless communication system are provided to maintain linearly proportional relation between an output current level and an input voltage level, and to obtain high input/output impedance. A transconductance drive unit(223-1,224-1) outputs current with a level which is in proportion to or in inverse proportion to a level of an input voltage. A degeneration unit(223-2,224-2) tunes the amount of degeneration of a source of the transconductance drive unit in response to an analog control voltage and a digital control signal of a tuning circuit. A common mode feedback unit(220-3) senses and stabilizes the voltage applied to an output terminal of the transconductance drive unit. The transconductance drive unit includes a first drive NMOS transistor for outputting negative current of the output current by a positive voltage of the input voltage, and a second drive NMOS transistor for outputting positive current of the output current by a negative voltage of the input voltage.
Abstract:
A method for setting adaptive network parameters based on a sampling time and a computer-readable medium recording a program for performing the same are provided to change the beacon interval of the entire network and readjust the sampling time of each device, thereby maximizing the efficiency of energy. A sampling time is received from terminal devices, and a beacon interval is set up(S110). A beacon order is determined using the set beacon interval(S120). A new beacon interval is determined using the determined beacon order(S130). The determined new beacon interval is transmitted to the terminal devices(S140). The sampling time of the terminal devices is synchronized with the determined new beacon interval(S150). A sampling order is adaptively determined in every determined beacon interval(S160). A beacon with the adaptively determined beacon order is transmitted(S170).
Abstract:
본 발명은 센서 네트워크에서의 저전력 센서 모듈을 위한 운영체제 및 방법에 관한 것이다. 본 발명의 센서 네트워크에서의 저전력 센서 모듈을 위한 운영체제 및 방법은 플래시와 램으로 구성되며 메모리의 추상화 역할을 하는 메모리 조직 모듈; 상기 메모리 조직 모듈과 연동되어 하나의 주소를 가지고 접근하여 레지스터를 추상화하는 레지스터 추상화 모듈; 상기 레지스터에 접근하는 인터페이스를 제공하는 레지스터 액세스 메소드; 상기 메모리 조직 모듈에서 추상화한 메모리를 할당하고 할당을 해제하는 메모리 관리 모듈; 주변장치와의 입출력을 통해 메소드를 제공하는 로우 레벨 I/O 주변장치 드라이버; 시스템의 전원상태를 관리하는 전원 관리 모듈; 동작의 트리거로 인터럽트를 처리하여 스레드의 상태를 갱신하는 이벤트 핸들러; 운영체제와 응용 프로그램의 통로로 메모리로부터 태스크 영역의 코드들을 스케줄링을 통해 실행 가능한 스레드 콘텍스트를 스케줄링 큐에 넣는 태스크 로더 및 상기 이벤트 핸들러에 의해 트리거되어 태스크의 스레드를 수행하는 스케줄러로 이루어짐에 기술적 특징이 있다. 따라서, 본 발명의 센서 네트워크에서의 저전력 센서 모듈을 위한 운영체제 및 방법은 운영체제상에서 모든 수행되는 모든 작업들을 주기적인 작업과 비주기적인 작업으로 분류를 함으로써 센서노드를 최적의 전원관리가 되도록 하였으며 센서용 응용프로그램을 위한 단순한 프로그래밍 구조, 효율적인 작업의 수행, 센서 네트워크에 적합한 컴퓨팅 환경을 제공하는 효과가 있다.