公开(公告)号：KR1020050048263A

公开(公告)日：2005-05-24

申请号：KR1020030082152

申请日：2003-11-19

Applicant: 한국전자통신연구원

Inventor： 김명돈 ,  서봉수 ,  최송인 ,  김대식

IPC: H04B1/40

Abstract: 본 발명은 이동단말과 헤드 마운티드 디스플레이 장치간의 정합 장치 및 방법에 관한 것이다.
본 발명에 의하면 이동단말을 통해 2차원 또는 3차원 영상 및 오디오 컨텐츠를 실시간으로 다운로드 받고, 다운로드 받은 패킷 데이터를 변환하여 HMD로 제공함으로써, 장소에 구애받지 않고 실감나는 2차원 또는 3차원 영상과 오디오 컨텐츠를 감상할 수 있도록 한다.

公开(公告)号：KR100462024B1

公开(公告)日：2004-12-17

申请号：KR1020020077995

申请日：2002-12-09

Applicant: 한국전자통신연구원

Inventor： 지덕구 ,  이인성 ,  황정준 ,  김대식 ,  최송인 ,  윤병식 ,  김형중 ,  박만호

IPC: H04L12/66

Abstract: PURPOSE: A method for recovering packet loss by using additional voice data is provided to use voice packet data as additional information for an FEC(Forward Error Correction), and to use additional voice packet data for an error correction in case a packet loss occurs, then to use an error hiding method in case the packet loss consecutively occurs, thereby improving deteriorated sound quality caused by the packet loss. CONSTITUTION: A voice signal is inputted in 1 frame unit(S61). A system decides whether voice signals of all frames are inputted(S62). If not, the system starts coding(S63). The coding process is divided into a low bit rate coding(S64) and a high bit rate coding(S66). The low bit rate coding is performed at 6.6kbit/s bit rate, and a voice signal coded at low bit rate is delayed for 1 frame(S65). A voice signal coded at high bit rate and the voice signal coded at the low bit rate are synthesized into one packet(S67). If the voice signals of all the frames are inputted, the system transmits the packets generated before this time(S68).

Abstract translation: 目的：提供一种通过使用额外的语音数据来恢复分组丢失的方法，以使用语音分组数据作为用于FEC（前向纠错）的附加信息，并且在发生分组丢失的情况下使用附加的语音分组数据用于纠错， 然后在连续出现分组丢失的情况下使用错误隐藏方法，由此改善由分组丢失引起的劣化音质。 构成：语音信号以1个帧单位输入（S61）。 系统决定是否输入所有帧的语音信号（S62）。 如果不是，系统开始编码（S63）。 编码过程分为低比特率编码（S64）和高比特率编码（S66）。 低比特率编码以6.6kbit / s比特率执行，并且以低比特率编码的语音信号被延迟1帧（S65）。 将以高比特率编码的语音信号和以低比特率编码的语音信号合成为一个分组（S67）。 如果输入了所有帧的语音信号，则系统发送在该时间之前产生的分组（S68）。

公开(公告)号：KR1020040051909A

公开(公告)日：2004-06-19

申请号：KR1020020079603

申请日：2002-12-13

Applicant: 한국전자통신연구원

Inventor： 김준식 ,  박남훈 ,  김대식

IPC: H04W88/06

Abstract: PURPOSE: A dual mode terminal and its driving method are provided to support both mobile communication and wireless LAN connection functions. CONSTITUTION: A mobile communication modem(11) is connected to a mobile communication network. A wireless LAN modem(12) is connected to a wireless AP(Access Point). A protocol stack storing unit(13) stores a protocol stack supporting wireless connection in a firmware or a memory form. An application storing unit(14) stores application programs that are connected through separate interface according to a type of a terminal. A controller(15) selectively operates the mobile communication modem(11) or the wireless LAN modem(12) according to a kind of a destination message when the destination message transmitted from the mobile communication network is received through the mobile communication modem(11).

Abstract translation: 目的：提供双模终端及其驱动方法，以支持移动通信和无线LAN连接功能。 构成：移动通信调制解调器（11）连接到移动通信网络。 无线LAN调制解调器（12）连接到无线AP（接入点）。 协议栈存储单元（13）存储以固件或存储器形式支持无线连接的协议栈。 应用存储单元（14）存储根据终端的类型通过单独接口连接的应用程序。 当通过移动通信调制解调器（11）接收到从移动通信网络发送的目的地消息时，控制器（15）根据目的地消息的种类选择性地操作移动通信调制解调器（11）或无线LAN调制解调器（12） 。

公开(公告)号：KR1020040051315A

公开(公告)日：2004-06-18

申请号：KR1020020079224

申请日：2002-12-12

Applicant: 한국전자통신연구원

Inventor： 김진경 ,  박남훈 ,  김대식

IPC: H04B7/26

CPC classification number: H04W48/16 ,  G01S5/02 ,  G01S5/0294 ,  H04W4/02 ,  H04W8/005 ,  H04W52/0229 ,  H04W52/0254 ,  H04W84/12 ,  H04W88/06 ,  H04W88/08 ,  Y02D70/122 ,  Y02D70/142 ,  Y02D70/164

Abstract: PURPOSE: A method for automatically searching a wireless LAN AP and a terminal performing the method are provided to automatically search a wireless LAN AP on the basis of position information of a wireless LAN AP and position information of a terminal through a GPS(Global Positioning System). CONSTITUTION: A wireless LAN module(21) performs various wireless LAN(IEEE 802, 11b/a, etc.) connection function. A mobile communication module(22) provides various mobile communication service(IS-95/3GPP/3GGP2/GSM). A GPS receiving module(23) obtains position information and provides it to a dual terminal. An AP position information storing unit(24) stores position information of the wireless LAN AP obtained through a mobile communication provider.

Abstract translation: 目的：提供一种自动搜索无线局域网AP和执行该方法的终端的方法，用于根据无线局域网AP的位置信息和终端的位置信息，通过GPS（全球定位系统）自动搜索无线局域网 ）。 构成：无线LAN模块（21）执行各种无线LAN（IEEE 802,11b / a等）连接功能。 移动通信模块（22）提供各种移动通信业务（IS-95 / 3GPP / 3GGP2 / GSM）。 GPS接收模块（23）获取位置信息并将其提供给双终端。 AP位置信息存储单元（24）存储通过移动通信提供商获得的无线LAN AP的位置信息。

公开(公告)号：KR1020040049529A

公开(公告)日：2004-06-12

申请号：KR1020020077327

申请日：2002-12-06

Applicant: 한국전자통신연구원

Inventor： 김준식 ,  박남훈 ,  김대식

IPC: H04W8/24 ,  H04W72/04

Abstract: PURPOSE: A method for supplying a mobile communication terminal program in a wireless network and a method therefor are provided to prepare a terminal program at a table according to a priority, and to assign resources according to the priority to download the terminal program, thereby efficiently managing the resources. CONSTITUTION: A terminal program management center(300) registers a terminal program(S301). A base station(200) transmits terminal program data and version information to a terminal(100)(S302). The terminal(100) receives a transmitted broadcasting program, and compares the program with a final version(S303-S305). If data to be received does not exist, the terminal(100) requests the base station(100) to transmit the necessary program data(S306,S307). The base station(200) synthesizes requests, makes plans to transmit the program according to states of current resources(S308), and transmits the program data to the terminal(100)(S309,S310). The terminal(100) receives the program to apply(S311,S312).

Abstract translation: 目的：提供一种用于在无线网络中提供移动通信终端程序的方法及其方法，用于根据优先级在表格上准备终端程序，并根据优先级分配资源以下载终端程序，从而有效地 管理资源。 构成：终端程序管理中心（300）登记终端程序（S301）。 基站（200）向终端（100）发送终端节目数据和版本信息（S302）。 终端（100）接收发送的广播节目，并将节目与最终版本进行比较（S303〜S305）。 如果要接收的数据不存在，则终端（100）请求基站（100）发送所需的节目数据（S306，S307）。 基站（200）合成请求，根据当前资源的状态进行计划发送（S308），并将程序数据发送到终端（100）（S309，S310）。 终端（100）接收应用程序（S311，S312）。

公开(公告)号：KR1020040048147A

公开(公告)日：2004-06-07

申请号：KR1020020075923

申请日：2002-12-02

Applicant: 한국전자통신연구원

Inventor： 최용석 ,  박남훈 ,  김대식 ,  김남

IPC: H04W16/00

CPC classification number: H04W16/18

Abstract: PURPOSE: An apparatus and method for calculating a cell coverage using an interference model are provided to calculate a cell coverage close to actual situation. CONSTITUTION: A topography data processor(31) divides an area for calculating a coverage into certain-size pixels. A traffic calculation processor(32) calculates the amount of traffic of each pixel. A forward coverage calculation processor(34) calculates forward link capacity and a coverage by calculating path loss information according to the amount of traffic of each pixel and a pre-set base station allowable capacity. A backward coverage calculation processor(35) determines backward link capacity and a backward coverage by calculating interference of the same cell interference and an adjacent cell by using the path loss information between base stations.

Abstract translation: 目的：提供一种使用干扰模型计算小区覆盖的装置和方法，以计算接近实际情况的小区覆盖。 构成：地形数据处理器（31）将用于计算覆盖范围的区域划分成特定大小的像素。 交通计算处理器（32）计算每个像素的业务量。 前向覆盖计算处理器（34）通过根据每个像素的业务量和预设的基站容许容量计算路径损耗信息来计算前向链路容量和覆盖。 后向覆盖计算处理器（35）通过使用基站之间的路径损耗信息来计算相同小区干扰和相邻小区的干扰来确定反向链路容量和后向覆盖。

公开(公告)号：KR1020040048146A

公开(公告)日：2004-06-07

申请号：KR1020020075922

申请日：2002-12-02

Applicant: 한국전자통신연구원

Inventor： 김진경 ,  박남훈 ,  김대식

IPC: H04L12/46

CPC classification number: H04W48/18 ,  G01S5/0009 ,  H04W4/02 ,  H04W36/32 ,  H04W52/0219 ,  H04W60/04 ,  H04W88/06 ,  Y02D70/142 ,  Y02D70/164

Abstract: PURPOSE: An access apparatus having a function of automatically searching a wireless LAN AP(Access Point) and its accessing method are provided to allow a terminal not to search a wireless LAN AP if no wireless LAN AP is provided at a current position. CONSTITUTION: A storage(13) stores position information of the latest wireless LAN AP obtained through the Internet. A GPS receiving module(12) receives a signal from a GPS satellite and calculates position information of a terminal. A wireless LAN module(11) performs a connection function of various wireless LANs. A controller(14) determines whether the terminal is within a service area of a wireless LAN AP on the bases of the position of the wireless LAN AP stored in the storage(13) and the position information of the terminal provided from the GPS receiving module(12), and selectively operates the wireless LAN module(11) in order to receive a signal transmitted from a wireless LAN AP.

Abstract translation: 目的：提供具有自动搜索无线LAN AP（接入点）及其访问方法功能的接入设备，以便在当前位置没有提供无线LAN AP的情况下允许终端不搜索无线LAN AP。 规定：存储（13）存储通过因特网获得的最新无线LAN AP的位置信息。 GPS接收模块（12）从GPS卫星接收信号并计算终端的位置信息。 无线LAN模块（11）执行各种无线LAN的连接功能。 控制器（14）基于存储在存储器（13）中的无线LAN AP的位置和从GPS接收模块提供的终端的位置信息来确定终端是否在无线LAN AP的服务区域内 （12），并且选择性地操作无线LAN模块（11），以便接收从无线LAN AP发送的信号。

公开(公告)号：KR100411899B1

公开(公告)日：2003-12-24

申请号：KR1020010080845

申请日：2001-12-18

Applicant: 한국전자통신연구원 ,  주식회사 팬택자산관리

Inventor： 김진경 ,  진성근 ,  박옥선 ,  김진업 ,  김대식

IPC: H04B7/26

Abstract: PURPOSE: A layer 1/2 setting control method of a adaptation tester for a wireless communication terminal is provided to perform a setting control procedure on a layer 1/2 while maintaining merits of a testing procedure language simpler than C language. CONSTITUTION: A user generates setting control information on a required layer 1/2 through a layer 1/2 setting control information generator and stores it in a layer 1/2 setting control information DB(501). A testing procedure language unit checks whether a setting control procedure should be performed on the layer 1/2 in performing a testing procedure(502). If the setting control procedure needs to be performed on the layer 1/2, the testing procedure language unit reads layer 1/2 setting control information on the basis of a fine name from the layer 1/2 setting control information DB(503). The testing procedure language unit transfers the layer 1/2 setting control information to a corresponding layer(504), and checks whether there is a testing procedure to be performed yet(505).

Abstract translation: 目的：提供一种用于无线通信终端的适配测试器的层1/2设定控制方法，以在保持测试程序语言比C语言简单的优点的同时在层1/2上执行设定控制程序。 构成：用户通过1/2层设置控制信息生成器在所需层1/2上生成设置控制信息，并将其存储在层1/2设置控制信息DB（501）中。 测试程序语言单元检查在执行测试程序（502）时是否应该在层1/2上执行设置控制程序。 如果设置控制过程需要在层1/2上执行，则测试过程语言单元基于来自层1/2设置控制信息DB（503）的美名读取层1/2设置控制信息。 测试程序语言单元将层1/2设定控制信息传送到相应的层（504），并检查是否存在要执行的测试程序（505）。

公开(公告)号：KR1020030034260A

公开(公告)日：2003-05-09

申请号：KR1020010047560

申请日：2001-08-07

Applicant: 한국전자통신연구원

Inventor： 김형중 ,  지덕구 ,  박만호 ,  윤병식 ,  최송인 ,  김대식 ,  김재원

IPC: H04B1/00

CPC classification number: G10L25/78 ,  G10L19/07

Abstract: PURPOSE: A voice activity detection apparatus and a method thereof in a mobile communication system are provided to distinguish a voice section from a background noise section efficiently while taking over the telephone existing the background noise by using peak measurement(PM) of a residual signal of an LPC(Linear Prediction Coefficient). CONSTITUTION: An LPC analyzer(101) receives and analyzes an input voice signal applied, and then extracts an LPC. An LPC mixer(102) reproduces the voice signal from the LPC. An adder(103) adds up the input voice signal and deducts the signal received from the LPC mixer(102) to produce an LPC residual signal. A PM calculating device(104) performs a PM by using the LPC residual signal. A first flag determining device(105) determines a flag by using the value of PM received from the PM calculating device(104). An analysis and flag determining unit analyzes frame energy and characteristic and distribution of frequency and then determines a flag. A VAD(Voice Activity Detection) device(112) determines a VAD by using a flag received from the analysis and flag determining unit.

Abstract translation: 目的：提供一种移动通信系统中的语音活动检测装置及其方法，用于通过使用残留信号的峰值测量（PM）来有效地区分语音部分与背景噪声部分，同时接收电话存在背景噪声 LPC（线性预测系数）。 构成：LPC分析器（101）接收并分析所施加的输入声音信号，然后提取LPC。 LPC混频器（102）从LPC再现语音信号。 加法器（103）将输入的语音信号相加，并且从LPC混频器（102）中扣除从LPC混频器（102）接收的信号，产生LPC残余信号。 PM计算装置（104）通过使用LPC残差信号来执行PM。 第一标志确定装置（105）通过使用从PM计算装置（104）接收的PM的值来确定标志。 分析和标志确定单元分析帧能量和频率的特性和分布，然后确定标志。 VAD（语音活动检测）装置（112）通过使用从分析标志确定单元接收到的标志来确定VAD。

公开(公告)号：KR100348899B1

公开(公告)日：2002-08-14

申请号：KR1020000054960

申请日：2000-09-19

Applicant: 한국전자통신연구원

Inventor： 김형중 ,  이인성 ,  김종학 ,  박만호 ,  윤병식 ,  최송인 ,  김대식

IPC: G10L19/04

Abstract: 본 발명은 하모닉 모델을 사용하는 유/무성음 혼합신호의 하모닉 노이즈 음성 부호화기 및 부호화 방법에 관한 것으로서, 입력되는 LPC 잔여신호를 캡스트럼을 이용하여 무성음 성분인 노이즈를 분리한 후 LPC 분석법으로 스펙트럴을 예측하여 상기 노이즈를 부호화 하는 노이즈-스펙트럴 추정 수단을 포함하는 것을 특징으로 하며, 유/무성음 혼합 신호를 기존의 하모닉 모델에 캡스트럼-LPC 분석법을 통해 예측된 노이즈 스펙트럴 모델을 사용하여 효과적으로 노이즈 분석을 하여 부호화 함으로써, 보다 개선된 음질을 구현할 수 있는 것을 특징으로 한다.