公开(公告)号：KR1020140147318A

公开(公告)日：2014-12-30

申请号：KR1020130070369

申请日：2013-06-19

Applicant: 한국전자통신연구원

Inventor： 유미선

IPC: G06F11/00 ,  G06F9/44

CPC classification number: G06F11/3636 ,  G06F11/00 ,  G06F9/30 ,  G06F9/44589 ,  G06F9/46 ,  G06F11/36

Abstract: Provided are an apparatus and method for detecting concurrency errors of a parallel program for a multicore, which are capable of outputting log information related to a shared variable access procedure associated with a cause of errors, in particular, concurrency errors causing failure of a program, and a position in a source code, upon receiving a compiled source code and an input value for executing a program, as an input. The apparatus for detecting concurrency errors of a parallel program for a multicore includes a source code matching module which adds a trace code and a dynamic thread manager class to an input source code based on interleaving information detected from the source code, splits a thread included in the source code to set an interleaving block and executes the same. When an error occurs in the executed interleaving block, the source code matching module stores log information outputted from the trace code and information on the interleaving block, and stores error information based on the information.

Abstract translation: 提供了一种用于检测用于多核的并行程序的并发错误的装置和方法，其能够输出与与错误原因相关联的共享变量访问过程相关的日志信息，特别是导致程序失败的并发错误， 以及在接收到编译的源代码和用于执行程序的输入值作为输入时的源代码中的位置。 用于检测用于多核的并行程序的并发错误的装置包括源代码匹配模块，其基于从源代码检测到的交织信息将跟踪代码和动态线程管理器类添加到输入源代码，将包含在 用于设置交织块并执行相同的源代码。 当执行的交错块发生错误时，源代码匹配模块存储从跟踪代码输出的日志信息和交织块上的信息，并存储基于该信息的错误信息。

公开(公告)号：KR1020130085484A

公开(公告)日：2013-07-30

申请号：KR1020110131136

申请日：2011-12-08

Applicant: 한국전자통신연구원

Inventor： 곽지영 ,  유미선 ,  김선태 ,  마평수

IPC: H04W28/24 ,  H04W36/00 ,  H04L12/70 ,  H04L29/06

CPC classification number: H04W28/24 ,  H04L1/0002 ,  H04W36/0044 ,  H04W36/30

Abstract: PURPOSE: A multimedia service providing method for guaranteeing the quality of service (QoS) is provided to secure the QoS of a real time multi-media service by recognizing the change of a service device and the network specificity by the handover on wireless network environment. CONSTITUTION: The quality of media is remarkably lowered for encoding when the available bandwidth of remote device network is narrower than the predetermined standard available bandwidth (S403). A data packet transmission range to a handover occurrence point is reduced when the media receiving packet delay and the loss rate is greater than the predetermined standard range based on a received session initiation protocol (SIP) message. A data packet capable of being lost during the time for the handover is transmitted before the occurrence of the handover (S404). [Reference numerals] (AA) Start; (BB) End; (S401) Collect network condition information; (S402) Transmit and receive the network condition and application buffer condition; (S403) Control media encoding data; (S404) Control transmitting traffic amount; (S405) Conduct handover

Abstract translation: 目的：提供一种保证服务质量（QoS）的多媒体业务提供方法，通过无线网络环境下的切换识别服务设备的变化和网络特异性来保证实时多媒体业务的QoS。 规定：当远程设备网络的可用带宽比预定的标准可用带宽窄时，媒体质量明显降低（S403）。 当媒体接收分组延迟和丢失率大于基于接收的会话发起协议（SIP）消息的预定标准范围时，减少到切换发生点的数据分组传输范围。 在切换发生的时间期间能够丢失的数据分组被发送（S404）。 （附图标记）（AA）开始; （BB）结束; （S401）收集网络状况信息; （S402）发送和接收网络条件和应用缓冲条件; （S403）控制媒体编码数据; （S404）控制发送业务量; （S405）进行切换

公开(公告)号：KR1020130085464A

公开(公告)日：2013-07-30

申请号：KR1020110127851

申请日：2011-12-01

Applicant: 한국전자통신연구원

Inventor： 송준근 ,  김해용 ,  김선태 ,  차우석 ,  유미선 ,  곽지영

IPC: H04L12/70 ,  H04B7/26

CPC classification number: H04W4/06 ,  H04L1/0002 ,  H04W84/18

Abstract: PURPOSE: A data packet transmission method is provided to improve the stability of transmission by preventing the degradation of total bandwidths. CONSTITUTION: An access point receives a unicast packet transmitted from a predetermined terminal connected to a wireless network (S401). The access point determines a data packet transmission method including rapid transmission speed between the broadcast method or the unicast method based on the number of terminals connected to a wireless network and the access point (S402). The access point transmits broadcast packet converted into the unicast packet to the access point and each terminal connected to the wireless network when the transmission speed of the broadcast method is faster than the unicast method (S403-S404). [Reference numerals] (AA) Start; (BB) Finish; (S501) Receives packets; (S502) Convert into external network address; (S503) Transmit to external interface; (S504) Broadcasting transmission is faster.; (S505) Convert into each connected terminal unicast address; (S506) Transmits to access point interface; (S507) Convert into an original broadcast address

Abstract translation: 目的：提供数据分组传输方法，通过防止总带宽的恶化来提高传输的稳定性。 构成：接入点接收从连接到无线网络的预定终端发送的单播分组（S401）。 接入点基于连接到无线网络的终端的数量和接入点来确定包括广播方法或单播方式之间的快速传输速度的数据分组传输方法（S402）。 当广播方法的传输速度比单播方式更快时，接入点将转换成单播分组的广播分组发送到接入点和连接到无线网络的每个终端（S403-S404）。 （附图标记）（AA）开始; （BB）完成; （S501）接收包; （S502）转换为外部网络地址; （S503）发送到外部接口; （S504）广播传输更快; （S505）转换为每个连接的终端单播地址; （S506）发送到接入点接口; （S507）转换为原始广播地址

公开(公告)号：KR1020120047512A

公开(公告)日：2012-05-14

申请号：KR1020100109110

申请日：2010-11-04

Applicant: 한국전자통신연구원

Inventor： 김선태 ,  유미선 ,  곽지영 ,  마평수

IPC: H04N7/14

CPC classification number: G09G5/36 ,  G09G2340/0428 ,  H04N7/15 ,  H04N19/112 ,  H04N19/423

Abstract: PURPOSE: A video call device for group media communication and a processing method thereof are provided to set different display resolution according to the number of participants in the group image communication. CONSTITUTION: An encoding unit(110) compresses the original data into the specific resolution. A plurality of decoding units(120-1~120-N) restores the compressed data by using an assigned memory. A group communication management unit(130) selectively activates at least one or more decoding units from the plurality of decoding units based on the reference information by video call mode which is differentiated by the number of participants in the video call service. The group communication management unit increases the display resolution and the size of the memory based on the reference information.

Abstract translation: 目的：提供用于组媒体通信的视频呼叫装置及其处理方法，以根据组图像通信中的参与者的数量来设置不同的显示分辨率。 构成：编码单元（110）将原始数据压缩成特定分辨率。 多个解码单元（120-1〜120-N）通过使用分配的存储器来恢复压缩数据。 组通信管理单元（130）基于通过视频呼叫服务中的参与者的数量区分的视频呼叫模式，从多个解码单元中选择性地激活至少一个或多个解码单元。 组通信管理单元基于参考信息增加显示分辨率和存储器的大小。

公开(公告)号：KR1020100073559A

公开(公告)日：2010-07-01

申请号：KR1020080132272

申请日：2008-12-23

Applicant: 한국전자통신연구원

Inventor： 차우석 ,  마평수 ,  장진호 ,  김진원 ,  김상철 ,  유미선 ,  김해용 ,  송준근

IPC: H04L12/28 ,  H04B7/26

CPC classification number: H04W84/18 ,  H04W40/04 ,  H04W72/12

Abstract: PURPOSE: An inactivity / activity duty cycle method is provided to maximize the efficiency of a channel recycle by minimizing the size of a virtual cluster. CONSTITUTION: Each node dynamically searches a 1-hop distance neighbor node by a three step handshake of a Beacon/Approval/ACK frame on a free contention access period of a time frame. Each node selects an initial activation schedule. The activated node selects the next active schedule by the second handshake of the Beacon/Approval frame on the control period. The node activated on the corresponding time slot as an owner has an exclusive channel access right for the corresponding time slot. The node transmits data on the transmission time.

Abstract translation: 目的：提供不活动/活动占空比方法，以通过最小化虚拟集群的大小来最大化通道回收的效率。 构成：每个节点在一个时间帧的自由争用访问周期内通过信标/认可/ ACK帧的三步握手动态搜索1跳距离邻居节点。 每个节点选择初始激活调度。 激活的节点通过控制周期的信标/批准帧的第二次握手来选择下一个活动的调度。 作为拥有者在相应时隙上激活的节点具有相应时隙的独占频道访问权限。 节点在发送时间发送数据。

公开(公告)号：KR1020090065080A

公开(公告)日：2009-06-22

申请号：KR1020070132518

申请日：2007-12-17

Applicant: 한국전자통신연구원

Inventor： 유미선 ,  김상철 ,  김해용 ,  마평수

IPC: H04L12/28 ,  G06F9/54

CPC classification number: H04L67/12 ,  H04L67/34 ,  H04L69/22 ,  H04W84/18

Abstract: A method for automatically generating an executable sensor network prototype is provided to set an item which can be different according to a sensor network application and items which can be different per a hardware platform of a sensor node in an upper level and specify an operation of a sensor node in a form through which the operation can be easily understood, thereby generating an executable code for the hardware platform. A packet between nodes is defined according to a sensor network application field(S20). A kind of a hardware module supporting an operating system of a sensor node is selected(S30). A behavior of at least one thread is modeled according to each sensor node configuring a sensor network to generate an execution code(S40). The execution code is compiled so that a prototype of an executable sensor node is automatically generated(S50).

Abstract translation: 提供了一种用于自动生成可执行传感器网络原型的方法，用于根据传感器网络应用设置可以不同的项目，以及可以在上级中的传感器节点的硬件平台上可以不同的项目，并且指定 传感器节点，通过该节点可以容易地理解操作，从而生成硬件平台的可执行代码。 根据传感器网络应用领域定义节点之间的分组（S20）。 选择一种支持传感器节点的操作系统的硬件模块（S30）。 根据配置传感器网络的每个传感器节点建立至少一个线程的行为以生成执行代码（S40）。 编译执行代码，从而自动生成可执行传感器节点的原型（S50）。

公开(公告)号：KR101942371B1

公开(公告)日：2019-04-18

申请号：KR1020120078574

申请日：2012-07-19

Applicant: 한국전자통신연구원

Inventor： 김선태 ,  곽지영 ,  유미선 ,  송준근 ,  마평수

IPC: H04N19/142 ,  H04N19/159 ,  H04N19/139

公开(公告)号：KR1020140021157A

公开(公告)日：2014-02-20

申请号：KR1020120086963

申请日：2012-08-08

Applicant: 한국전자통신연구원

Inventor： 유미선 ,  곽지영 ,  김선태 ,  송준근 ,  차우석

IPC: H04W88/18 ,  H04W4/08

CPC classification number: H04N7/15 ,  H04L67/1046 ,  H04L67/1068 ,  H04W4/08

Abstract: Provided is an apparatus for providing a group communication service. The apparatus for providing a group communication service comprises: a group communication management module for controlling and managing group communication of multiple user terminals connected to an internal network standing alone from an external network; and a video/voice management module for receiving voices and videos for the group communication from microphones and cameras of the user terminals and manages the voices and videos, wherein the group communication management module includes: a packet management unit for generating packets used for controlling the group communication; a terminal searching unit for transmitting a group communication connection packet among the generated packets to a plurality of surrounding user terminals connected to the internal network, and searching for user terminals those can participate in the group communication based on response packets from the surrounding user terminals; and a group communication control unit for generating a communication group by transmitting a communication group generating packet among the generated packets to the searched participating user terminals, modifying or changing the communication group by transmitting a group communication control packet among the generated packets to the searched participating user terminals, and controlling the group communication of user terminals belonging to the communication group. [Reference numerals] (130) Group communication management module; (140) Video and voice management module; (150) video and voice output module; (AA) Mobile operation system

Abstract translation: 提供了一种用于提供组通信服务的装置。 用于提供组通信服务的装置包括：组通信管理模块，用于控制和管理连接到独立于外部网络的内部网络的多个用户终端的组通信; 以及视频/语音管理模块，用于从用户终端的麦克风和照相机接收用于组通信的语音和视频，并管理语音和视频，其中组通信管理模块包括：分组管理单元，用于生成用于控制 团体沟通; 终端搜索单元，用于将生成的分组中的组通信连接分组发送到连接到内部网络的多个周边用户终端，并且基于来自周围用户终端的响应分组来搜索可以参与群组通信的用户终端; 以及组通信控制单元，用于通过在所生成的分组中发送通信组生成分组到所搜索的参与用户终端来生成通信组，通过在所生成的分组中发送组通信控制分组来修改或改变通信组， 用户终端，以及控制属于通信组的用户终端的群组通信。 （附图标记）（130）组通信管理模块; （140）视频和语音管理模块; （150）视频和语音输出模块; （AA）移动操作系统

公开(公告)号：KR1020120051227A

公开(公告)日：2012-05-22

申请号：KR1020100112561

申请日：2010-11-12

Applicant: 한국전자통신연구원

Inventor： 곽지영 ,  김선태 ,  유미선 ,  마평수

IPC: H04W88/04 ,  H04L1/00 ,  H04W84/18

CPC classification number: H04L1/007 ,  H04L65/602 ,  H04L65/80 ,  H04L69/40 ,  H04W4/20

Abstract: PURPOSE: An ad-hoc multimedia group communication terminal and an operation method thereof are provided to properly select media data transmission amount and to measure the change of a wireless channel through control information of a group communication reception terminal. CONSTITUTION: A reception state monitoring module(17) recognizes packet reception state information about reception terminals based on a received control packet. An error recovery level/traffic control module(18) controls traffic quantity of a media data packet according to the packet reception state information. A bit stream division and error recovery data generating module(13) generates error recovery data. A media data packet generating module(14) generates the media data packet.

Abstract translation: 目的：提供一种自组织多媒体组通信终端及其操作方法，以适当地选择媒体数据传输量，并通过组通信接收终端的控制信息测量无线信道的变化。 构成：接收状态监视模块（17）基于接收到的控制分组来识别关于接收终端的分组接收状态信息。 错误恢复级别/流量控制模块（18）根据分组接收状态信息来控制媒体数据分组的流量。 位流分割和错误恢复数据生成模块（13）生成错误恢复数据。 媒体数据包生成模块（14）生成媒体数据包。

公开(公告)号：KR101017351B1

公开(公告)日：2011-02-28

申请号：KR1020070042626

申请日：2007-05-02

Applicant: 한국전자통신연구원

Inventor： 김상철 ,  김해용 ,  신창민 ,  김진원 ,  유미선 ,  장진호 ,  마평수

IPC: G06F9/50 ,  G06F9/46 ,  G06F9/38

CPC classification number: G06F12/023 ,  G06F9/5016

Abstract: 본원 발명은 멀티 쓰레드 운영 체제(multi-threaded operating system)에서의 동적 쓰레드 스택 재할당 방법에 관한 것으로서, 구체적으로는 무선 센서 노드용 임베디드 시스템에서 멀티 쓰레드 운영 체제의 동적 쓰레드 스택 재할당 방법에 관한 것이다.
본 발명에 따른 멀티 쓰레드 기반 운영체제에서의 동적 스레드 스택 재할당 방법은, 멀티 쓰레드 각각에 대한 스택의 데이터 영역 크기 및 비데이터 영역의 크기를 측정하는 단계와, 상기 멀티 쓰레드 각각에 대해 상기 측정된 스택의 데이터 영역 크기에 기반하여 각 스택의 비데이터 영역의 새로운 크기를 결정하는 단계와, 각 스택의 비데이터 영역 크기를 상기 결정된 새로운 크기로 조정하는 단계를 포함한다.
본 발명에 따르면, 소스 코드의 분석 없이도 기존의 정적인 스택 할당 기법을 사용하는 것보다 메모리 공간의 사용량을 절감할 수 있는 효과가 있다.
무선 센서 네트워크, 멀티 쓰레드 운영체제, 스택 할당