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公开(公告)号：KR100403055B1
公开(公告)日：2003-10-23
申请号：KR1020020002496
申请日：2002-01-16
Applicant: 한국전자통신연구원
IPC: G02B6/125
CPC classification number: G02F2/004 , G02B6/2813 , G02F2001/212 , G02F2001/217 , H01S5/509
Abstract: Filter-free wavelength converters for separating and rejecting an optical input signal. A first input port couples a continuous wave (CW) light. A second input port couples an optical input signal. A multimode interference semiconductor optical amplifier (MMI-SOA) determines the output port with the input port and intensity-modulation of the CW light with the optical input signal. A first output port guides the converted signal, and a second output port guides the optical input signal.
Abstract translation: 无滤波器波长转换器，用于分离和抑制光输入信号。 第一输入端口耦合连续波（CW）光。 第二输入端口耦合光输入信号。 多模干涉半导体光放大器（MMI-SOA）通过输入端口和光输入信号确定CW光的强度调制来确定输出端口。 第一输出端口引导转换的信号，并且第二输出端口引导光学输入信号。
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公开(公告)号：KR1020030054102A
公开(公告)日：2003-07-02
申请号：KR1020010084208
申请日：2001-12-24
Applicant: 한국전자통신연구원
IPC: H04L12/28
Abstract: PURPOSE: A user level socket layer and a communication interface method using the same are provided to effectively perform an application program of a cluster system by controlling connection between a socket interface and a VIA(Virtual Interface Architecture). CONSTITUTION: It is checked whether a receiving queue can receive a message and certain number of descriptors are generated to limit the number of messages that the receiving queue can simultaneously receive(S100). The receiving information of the receiving queue is transferred to an application program of a transmitting side(S200). The application program of the transmitting side limits transmission capacity on the basis of the received information(S300). When the application program of the transmitting side transmits messages(S400), it changes a value obtained by subtracting the number of transmission messages from the simultaneously transmittable maximum message number as the simultaneously transmittable maximum message number(S500). When the application program of the transmitting side receives a signal(ACK) informing of completion of previous messages from an application program of a receiving side(S600), it increases the simultaneously transmittable maximum message number as many as the number of signals(ACK)(S700).
Abstract translation: 目的：通过控制套接字接口和VIA（虚拟接口体系结构）之间的连接，提供用户级套接字层和使用该层的套接字层和通信接口方法，以有效地执行集群系统的应用程序。 规定：检查接收队列是否可以接收到消息，并生成一定数量的描述符，以限制接收队列可以同时接收的消息数（S100）。 接收队列的接收信息被传送到发送侧的应用程序（S200）。 发送侧的应用程序基于接收到的信息来限制发送容量（S300）。 当发送侧的应用程序发送消息（S400）时，通过从同时发送的最大消息号码减去发送消息数而获得的值作为可同时发送的最大消息号码（S500）而改变。 当发送方的应用程序接收到从接收侧的应用程序通知完成先前消息的信号（ACK）（S600）时，增加与信号数（ACK）一样多的同时可发送的最大消息号， （S700）。
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公开(公告)号：KR101780052B1
公开(公告)日：2017-09-19
申请号：KR1020110084844
申请日：2011-08-24
Applicant: 한국전자통신연구원
CPC classification number: G06F9/441 , G06F9/4418
Abstract: 운영체제의전환을수초내에하기위한정보처리시스템에서운영체제전환방법을제안한다. 제안된방법은, 프로세서, 메인메모리, 비휘발성메모리및 입출력장치들을포함하는정보처리시스템에있어서, 정보처리시스템에전원이인가되면운영체제전환기가실행되는단계와, 제1 운영체제가활성화되어수행되던도중제1 운영체제가제2 운영체제로의운영체제전환명령을획득하면, 제2 운영체제의식별정보및 운영체제전환을지시하는정보를비휘발성메모리에저장하는단계와, 제1 운영체제가대기모드(Suspend To RAM, STR)를수행하는단계및 대기모드의수행이완료된후, 운영체제전환기가운영체제를제1 운영체제에서제2 운영체제로전환하는단계를포함한다. 따라서, 시스템에서수초내에다른운영체제로의전환을가능하게하고, 기존의작업환경을유지할수 있는효과가있다.
Abstract translation: 我们在信息处理系统中提出了一种操作系统转换方法，可在几秒钟内转换操作系统。 所提出的方法，处理器，主存储器，非易失性存储器和所述信息处理系统，包括输入输出装置中，当在信息处理系统的电源是，操作系统切换器执行的方法的释放期间，执行第一操作系统是有效的， 第一操作系统在第二实现该操作系统切换命令至操作系统，第二操作系统标识信息和指示操作系统开关，包括的信息：在非易失性存储器中存储，所述第一操作系统处于待机模式（挂起到RAM， STR）并且在完成待机模式的执行之后将操作系统从第一操作系统切换到第二操作系统。 因此，可以在几秒钟内从系统转换到另一个操作系统，并保持现有的工作环境。
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公开(公告)号：KR101665976B1
公开(公告)日：2016-10-14
申请号：KR1020110127104
申请日：2011-11-30
Applicant: 한국전자통신연구원
CPC classification number: G06F9/4555 , G06F9/45533
Abstract: 본발명은운영체제커널의자동반가상화장치로, 네이티브운영체제커널로부터프로파일정보를검출해내는커널프로파일러와, 상기네이티브운영체제커널과프로파일정보와결합하여반가상화가상머신모니터부에서동작될수 있는반가상화된운영체제커널을자동으로생성하는가상화부를포함한다.
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Patent Agency Ranking
公开(公告)号：KR101334842B1
公开(公告)日：2013-12-02
申请号：KR1020100081237
申请日：2010-08-23
Applicant: 한국전자통신연구원
IPC: G06F9/455 , G06F15/177 , G06F9/24
Abstract: 본 발명은 가상화를 하드웨어적으로 지원하는 소형 단말 플랫폼을 위한 경량 가상 머신 관리 장치에 대한 것이다. 각 프로세서마다 가상화를 지원하는 정도에는 차이가 있지만 가상 CPU 기능 이상을 갖춘 플랫폼에서는 이를 최대한 활용하는 것이 소프웨어적으로만 구현된 가상 머신 모니터에 비해 성능상 효율적이다. 또한 최소한 1개의 OS에 대해 소스 수정 없이 게스트로 동작하도록 하여, 유지 보수 비용 및 Time-to-Market을 줄일 수 있다. 본 발명에서 제시하는 가상 머신 관리 장치는 시스템 구성 단계에서 전체 시스템 성격에 따라 타겟 플랫폼이 제공하는 가상화 지원 하드웨어 기능을 최대한 활용하도록 구성하여, 해당 플랫폼에서 제공하는 가상 CPU 수만큼의 게스트 운영체제에 대해 성능을 최적화하고 가상머신 관리 장치의 크기로 최소화한다.
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公开(公告)号：KR1020130050156A
公开(公告)日：2013-05-15
申请号：KR1020110115357
申请日：2011-11-07
Applicant: 한국전자통신연구원
CPC classification number: G06F12/1009 , G06F9/45558 , G06F2009/45583
Abstract: PURPOSE: A virtual address space switch device is provided to reduce memory usage and to improve the performance of a virtual machine by not mapping a page table of a VMM(Virtual Machine Monitor) with a virtual address space of a guest OS. CONSTITUTION: A guest OS(131) is executed in a virtual address space of the guest OS, and a VMM(120) is executed in a virtual address space of the VMM. A gateway page is allocated to a set area of an actual memory area and mapped with the virtual address spaces of the guest OS and the VMM. A memory management unit switches the virtual address spaces of the guest OS and the VMM by mapping a kernel area of the guest OS with a set area of the virtual address space of the VMM. [Reference numerals] (110) Hardware; (120) Virtual machine monitor(VMM); (130) Virtual machine(VM); (131) Guest operating system; (AA) Memory management unit; (BB) Memory
Abstract translation: 目的：提供虚拟地址空间交换设备以通过不将VMM（虚拟机监视器）的页表映射到来宾操作系统的虚拟地址空间来减少内存使用并提高虚拟机的性能。 构成：在客户OS的虚拟地址空间中执行客户操作系统（131），并在VMM的虚拟地址空间中执行VMM（120）。 网关页面被分配给实际存储区域的集合区域，并与客户OS和VMM的虚拟地址空间进行映射。 存储器管理单元通过将客户OS的内核区域与VMM的虚拟地址空间的设置区域映射来切换客户OS和VMM的虚拟地址空间。 （附图标记）（110）硬件; （120）虚拟机监视器（VMM）; （130）虚拟机（VM）; （131）客人操作系统; （AA）内存管理单元; （BB）内存
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公开(公告)号：KR1020110069515A
公开(公告)日：2011-06-23
申请号：KR1020090126275
申请日：2009-12-17
Applicant: 한국전자통신연구원
IPC: G06F9/455
CPC classification number: G06F9/45516
Abstract: PURPOSE: A virtualization apparatus and a processing method thereof are provided to minimize a memory usage due to virtualization by minimizing the size of a basic block and proceeding VIP(Virtualization In Place) based on source binary transformation through a basic block cache. CONSTITUTION: If the entry of an entry address does not exists in a basic block cache, an emulation manager(402) requests the identification of a basic block corresponding to the entry address. A basic block identifying unit(406) successively interprets an instruction of a source binary and identifies the basic block. An instruction replacer(410) inputs a branch instruction about the entry of the basic block in the source binary and branches to the entry address. If the entry address is branched, an instruction emulator(414) executes the instruction of the basic block.
Abstract translation: 目的：提供一种虚拟化设备及其处理方法，以通过基于基本块高速缓存的源二进制变换来最小化基本块的大小和进行VIP（Virtualization In Place）来最小化由虚拟化引起的存储器使用。 构成：如果基本块高速缓存中不存在条目地址的条目，则仿真管理器（402）请求对应于入口地址的基本块的标识。 基本块识别单元（406）连续解释源二进制的指令并识别基本块。 指令替换器（410）输入关于源二进制中的基本块的条目的分支指令，并分支到入口地址。 如果入口地址被分支，则指令仿真器（414）执行基本块的指令。
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公开(公告)号：KR1020110066613A
公开(公告)日：2011-06-17
申请号：KR1020090123345
申请日：2009-12-11
Applicant: 한국전자통신연구원
IPC: G06F9/06
CPC classification number: G06F9/4812 , G06F9/45541
Abstract: PURPOSE: A virtualization apparatus of an interrupt controller in a computer system and a method thereof are provided to proceed the virtualization of the interrupt controller which the correction of the part related to the interrupt controller is unnecessary in OS and to transfer the hardware interrupt to the OS through VMM. CONSTITUTION: A computer hardware(200) comprises a hardware interrupt controller(302). A VMM(Virtual Machine Monitor)(210) offers virtual computer hardware environment between the computer hardware and two OS(Operating System)s (220), and virtualizes the hardware interrupt controller. The OS controls the computer hardware by using application programs. If CPU processes the access toward the hardware interrupt controller of the OS as exception operation, the VMM transfers the access toward the hardware interrupt controller to a virtual interrupt controller(312).
Abstract translation: 目的：提供计算机系统中的中断控制器的虚拟化装置及其方法，以进行中断控制器的虚拟化，在OS中不需要对与中断控制器有关的部分进行校正，并将硬件中断传送到 操作系统通过VMM。 构成：计算机硬件（200）包括硬件中断控制器（302）。 VMM（虚拟机监视器）（210）在计算机硬件和两个OS（操作系统）（220）之间提供虚拟计算机硬件环境，并虚拟化硬件中断控制器。 OS通过使用应用程序来控制计算机硬件。 如果CPU处理对OS的硬件中断控制器的访问作为异常操作，则VMM将对硬件中断控制器的访问传送到虚拟中断控制器（312）。
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公开(公告)号：KR1020110061416A
公开(公告)日：2011-06-09
申请号：KR1020090118061
申请日：2009-12-01
Applicant: 한국전자통신연구원
Inventor： 김강호
CPC classification number: G06F9/45558 , G06F2009/45583
Abstract: PURPOSE: A communication channel converting method and an apparatus in a shared memory communications environment are provided to support a live migration of a virtual machine by converting a shared memory communication channel into a TCP/IP channel. CONSTITUTION: The first virtual machine(100) includes a switching unit(104), a state controller(106), a channel converting message processor(108), a TCP/IP communication channel(110), and a shared memory communication channel(112). The second virtual machine(200) shares the TCP/IP communication channel and the shared memory communications channel. The second virtual machine has the same configurations as the first virtual machine. The switching part adjusts the direction of the communication flow. The state controller plays a role of deciding the communication flow.
Abstract translation: 目的：提供通信信道转换方法和共享存储器通信环境中的装置，以通过将共享存储器通信信道转换为TCP / IP信道来支持虚拟机的实时迁移。 构成：第一虚拟机（100）包括切换单元（104），状态控制器（106），信道转换消息处理器（108），TCP / IP通信信道（110）和共享存储器通信信道 112）。 第二虚拟机（200）共享TCP / IP通信信道和共享存储器通信信道。 第二个虚拟机具有与第一个虚拟机相同的配置。 切换部分调整通信流程的方向。 状态控制器起决定通信流的作用。
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