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公开(公告)号：KR101295645B1
公开(公告)日：2013-08-12
申请号：KR1020110134854
申请日：2011-12-14
Applicant: 한국전자통신연구원
Abstract: 탬퍼 시도로부터 데이터를 효과적으로 방어할 수 있으며, 외부 요인에 의하여 데이터 훼손 시 해당 데이터를 손쉽게 복구 가능케 하는 마이크로 컨트롤러를 이용한 데이터 처리 기술이 개시된다. 이를 위해, 본 발명에 따른 마이크로 컨트롤러를 이용한 데이터 처리 장치는 탬퍼 시도를 감지하는 탬퍼 감지부; 상호간에 통신 채널로 연결되며, 데이터를 상호 중복하여 저장하고 있는 복수개의 마이크로 컨트롤러; 및 복수개의 마이크로 컨트롤러 각각에 전원을 공급하는 백업 배터리부를 포함하며, 탬퍼 감지부에서 탬퍼 시도가 감지된 경우, 복수개의 마이크로 컨트롤러가 저장하고 있는 데이터를 삭제하며, 복수개의 마이크로 컨트롤러 중 특정 마이크로 컨트롤러에 저장된 데이터가 훼손되는 경우, 특정 마이크로 컨트롤러가 다른 마이크로 컨트롤러로부터 훼손된 데이터와 동일한 데이터를 전송받아 데이터 복원을 진행하는 것을 특징으로 한다.
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公开(公告)号：KR1020030083266A
公开(公告)日：2003-10-30
申请号：KR1020020021729
申请日：2002-04-20
Applicant: 한국전자통신연구원
IPC: H04L12/28
Abstract: PURPOSE: A method for reducing delay of a voice transmission in a digital voice communication system is provided to abandon data whose packet data rate in a wireless terminal is less than a predetermined rate, when voice delay occurs, thereby reducing the voice delay. CONSTITUTION: A wireless terminal measures a recovery time whenever a voice block is generated(10). The wireless terminal compares the recovery time with a reference value(12). If the recovery time exceeds the reference value, the wireless terminal stores packet data only whose data rate is more than a predetermined rate among packet data generated from a vocoder, and generates the voice block(16). If the recovery time is less than the reference value, the wireless terminal stores all the packet data, and generates the voice block(14). The wireless terminal transmits the generated voice block to a TCP layer(18).
Abstract translation: 目的：提供一种在数字语音通信系统中减少语音传输延迟的方法，以便在发生语音延迟时，丢弃无线终端中的分组数据速率小于预定速率的数据，从而减少语音延迟。 构成：无线终端每当产生语音块时都会测量恢复时间（10）。 无线终端将恢复时间与参考值（12）进行比较。 如果恢复时间超过参考值，则无线终端在从声码器生成的分组数据中存储数据速率大于预定速率的分组数据，并产生语音块（16）。 如果恢复时间小于参考值，则无线终端存储所有分组数据，并生成语音块（14）。 无线终端将生成的语音块发送到TCP层（18）。
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公开(公告)号：KR1020140070992A
公开(公告)日：2014-06-11
申请号：KR1020120138776
申请日：2012-12-03
Applicant: 한국전자통신연구원
IPC: H04B1/10
CPC classification number: H04L25/03993 , H04B7/15592 , H04L25/20
Abstract: Provided are a relay capable of preventing undesired white noise from being additionally amplified and a method for protecting information of a wireless channel user using the relay. The relay includes: a demodulator which receives signals from a transmitting end and a receiving end, decodes the received signals, and removes white noise added to the received signals; a reconstruction unit which applies, to a signal outputted by the demodulator, channel gain between the transmitting end and a relay, channel gain between the transmitting end and the receiving end, and channel gain between the receiving end and a relay to reconstruct a signal to be transmitted; and a modulator which encodes the signal to be transmitted which is reconstructed by the reconstruction unit and sends the encoded signal to the receiving end. Thus, a cooperative relay receives an artificial noise and decodes and reconstructs the artificial noise, thereby preventing an unnecessary additional white noise from being amplified in the relay.
Abstract translation: 提供了能够防止不期望的白噪声被额外放大的中继器以及用于使用该继电器来保护无线信道用户的信息的方法。 该继电器包括：解调器，其从发送端和接收端接收信号，对接收到的信号进行解码，并除去加到接收信号上的白噪声; 重构单元，对由解调器输出的信号施加发送端和中继之间的信道增益，发送端与接收端之间的信道增益，以及接收端与继电器之间的信道增益，以将信号重建为 被传送 以及调制器，其对由重建单元重建的要发送的信号进行编码，并将编码的信号发送到接收端。 因此，协作继电器接收人造噪声，解码并重构人为噪声，从而防止在继电器中不必要的附加白噪声被放大。
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公开(公告)号：KR1020110065262A
公开(公告)日：2011-06-15
申请号：KR1020100028563
申请日：2010-03-30
Applicant: 한국전자통신연구원 , 연세대학교 산학협력단
Abstract: PURPOSE: A method for supporting a vehicle communication handover is provided to perform a stable media access based on contention free through a WPCF(WAVE Point Coordination Function) channel access method. CONSTITUTION: A first RSU(Roadside Unit)(100a) receives vehicle information from a first vehicle(200a) which newly enters into a coverage of the first RSU. The first RSU transfers the channel access sequence to the first vehicle. If the first vehicle request a handover, the first RSU transfers the handover information about the first vehicle to a second RSU through a WAVE handover control unit. The second RSU receives the vehicle information from the first vehicle. According to the vehicle information, the second RSU allocates the vehicle access order.
Abstract translation: 目的：提供一种用于支持车辆通信切换的方法，以通过WPCF（WAVE Point Coordination Function）通道访问方法，基于无竞争性来执行稳定的媒体访问。 构成：第一RSU（路侧单元）（100a）从新进入第一RSU的覆盖范围的第一车辆（200a）接收车辆信息。 第一RSU将信道接入序列传送到第一车辆。 如果第一车辆请求切换，则第一RSU通过WAVE切换控制单元将关于第一车辆的切换信息传送到第二RSU。 第二RSU从第一车辆接收车辆信息。 根据车辆信息，第二RSU分配车辆访问命令。
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Patent Agency Ranking
公开(公告)号：KR100417240B1
公开(公告)日：2004-02-05
申请号：KR1020020021730
申请日：2002-04-20
Applicant: 한국전자통신연구원
IPC: H04L12/66
Abstract: PURPOSE: A method for performing digital voice communication is provided to transceive a voice by using a data communication service method between a wire terminal and a wireless terminal without correcting a mobile communication system of a communication provider, thereby enhancing clear and safe voice quality. CONSTITUTION: A wireless terminal(40) performs a voice communication service and a data communication service by using a CDMA system. A mobile communication network(42) transmits data between the wireless terminal(40) and an IWF(44). The IWF(44) processes data connections between the mobile communication network(42) and a wire communication network(46). The wire communication network(46) transmits data between the IWF(44) and a wire terminal(48), and includes an exchange. The wire terminal(48) comprises as follows. A voice communication processor(48d) performs the voice communication service. A vocoder(48a) encodes/decodes a voice signal/voice data. An input/output unit(48b) inputs/outputs the voice data. A controller(48c) determines to perform either of the voice communication service and the data communication service.
Abstract translation: 目的：提供一种用于执行数字语音通信的方法，以通过使用有线终端和无线终端之间的数据通信服务方法来收发语音，而不纠正通信提供商的移动通信系统，从而增强清晰和安全的语音质量。 组成：无线终端（40）通过使用CDMA系统执行语音通信业务和数据通信业务。 移动通信网络（42）在无线终端（40）和IWF（44）之间传输数据。 IWF（44）处理移动通信网络（42）和有线通信网络（46）之间的数据连接。 有线通信网络（46）在IWF（44）和有线终端（48）之间传输数据，并且包括交换机。 导线端子（48）如下所述。 话音通信处理器（48d）执行话音通信服务。 声码器（48a）编码/解码语音信号/语音数据。 输入/输出单元（48b）输入/输出语音数据。 控制器（48c）确定执行语音通信服务和数据通信服务中的任一个。
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公开(公告)号：KR101617213B1
公开(公告)日：2016-05-02
申请号：KR1020140144716
申请日：2014-10-24
Applicant: 한국전자통신연구원
Abstract: 음성압축채널을통한데이터전송시 음성부호화기, 잡음제거기, VAD 등에의하여발생하는신호왜곡, 신호삭제로인한모뎀기술적용의문제점을해결하기위한모뎀신호전송방법을제시한다. 제시된방법은음성압축채널을통해더미신호를송출하는단계, 더미신호이후에서로다른주기를가지는다수개의주기신호로구성된초기동기신호를음성압축채널을통해송출하는단계, 및초기동기신호이후에모뎀신호를상기음성압축채널을통해송출하되모뎀신호의송출과멈춤을반복하여보내는단계를포함한다.
Abstract translation: 公开了一种调制解调器信号传输方法，用于解决当通过语音压缩信道发送数据时由语音编码器，噪声去除器，VAD等引起的信号失真和信号删除引起的应用调制解调器技术的问题。 所公开的方法包括以下步骤：通过语音压缩信道发送虚拟信号; 发送由虚拟信号和具有不同周期的多个周期信号组成的初始同步信号; 并且通过语音压缩信道在初始同步信号之后发送调制解调器信号，重复发送调制解调器信号并停止的过程。
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公开(公告)号：KR101593185B1
公开(公告)日：2016-02-15
申请号：KR1020140163346
申请日：2014-11-21
Applicant: 한국전자통신연구원
CPC classification number: H04L9/06 , H04L1/00 , H04L9/0618
Abstract: WCDMA 음성채널에최적화된코드북설계를통해신뢰성있는데이터전송을보장하도록한 방법및 장치를제시한다. 제시된방법은다수의심볼을포함하는코드북을생성하는단계; 입력신호에해당하는심볼을선택하는단계; 선택된심볼에대해다수회의트랜스코딩을수행하는단계; 다수회의트랜스코딩을거친심볼과코드북의심볼들간의상관도를구하여입력신호를추정하는단계; 입력신호와추정된신호를비교하여심볼오류율을계산하는단계; 및심볼오류율이최소화되도록심볼조정을행하는단계를포함한다.
Abstract translation: 本发明涉及一种用于通过针对WCDMA语音信道优化的码本设计确保可靠数据传输的方法和装置。 该方法包括以下步骤：产生包括多个符号的码本; 选择与输入信号对应的符号; 对所选择的符号执行多个代码转换操作; 通过获得代码本的符号和经过多次代码转换操作的符号之间的相关性来估计输入信号; 通过比较输入信号和估计信号来计算符号的错误率; 以及通过使符号错误率最小化来执行符号调整操作。
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20.发明授权
公开(公告)号：KR101588420B1
公开(公告)日：2016-02-12
申请号：KR1020140122029
申请日：2014-09-15
Applicant: 한국전자통신연구원
Abstract: 외장형보안장치를이용하여다양한응용서비스의기밀데이터를안전하게전송하도록하는방법및 이를위한외장형보안장치를제시한다. 제시된방법은제 1 응용서비스단말에연결된제 1 외장형보안장치와제 2 응용서비스단말에연결된제 2 외장형보안장치가상호인증을수행한다. 상호인증이후에제 1 외장형보안장치와제 2 외장형보안장치가키 공유를행한다. 제 1 외장형보안장치가키를기반으로기밀데이터를암호화하여암호패킷을제 1 응용서비스단말에게로전송한다. 제 1응용서비스단말이암호패킷을인터넷패킷으로변환하여인터넷망을통해제 2 응용서비스단말에게로전송한다. 제 2 응용서비스단말이인터넷패킷을암호패킷으로변환하여제 2 외장형보안장치에게로전송한다. 제 2 외장형보안장치가키를기반으로암호패킷을복호화하여기밀데이터를복원한다.
Abstract translation: 公开了一种使用外部安全装置和用于其的外部安全装置来发送各种应用服务的机密数据的方法。 使用外部安全装置发送各种应用服务的机密数据的方法包括以下步骤：连接到第一应用服务终端的第一外部安全设备和连接到第二应用服务终端的第二外部安全设备彼此认证; 第一外部安全设备和第二外部安全设备在相互认证之后共享密钥; 所述第一外部安全装置基于所述密钥对所述机密数据进行加密，以向所述第一应用服务终端发送加密分组; 第一应用服务终端将加密分组转换成互联网分组，以经由因特网网络将互联网分组发送到第二应用服务终端; 第二应用服务终端将互联网分组转换成加密分组，以将加密分组发送到第二外部安全设备; 并且第二外部安全设备基于密钥解密加密分组以恢复机密数据。
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