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81. 发明公开

KR1020080052285A 다중대역 ＩＲ－ＵＷＢ용 초 저전력 펄스 발생기 및 그방법 无效
标题翻译：超低功率脉冲发生器，用于多频IR-UWB
公开(公告)号：KR1020080052285A
公开(公告)日：2008-06-11
申请号：KR1020070077169
申请日：2007-07-31
申请人： 한국전자통신연구원 , 한국정보통신대학교 산학협력단
发明人： 이종오 , 도윤미 , 표철식 , 이상국 , 한석균 , 팡투앙안
IPC分类号： H03K5/01 , H04B1/04
CPC分类号： H04B1/7174
摘要： An ultra low power pulse generator for a multiband an IR-UWB and a method thereof are provided to supply a simple switching function between sub-bands by changing an oscillation frequency. An ultra low power pulse generator for a multiband an IR-UWB includes an oscillation unit(510), a switch unit(520), a micro adjusting unit(517), a power unit(540), a control unit(530), and a sub-band generation unit(513). The oscillation unit generates and outputs a sine wave. The switch unit activates or deactivates the oscillation unit in response to an input control signal. The micro adjusting unit adjusts a frequency of the sine wave. The power unit supplies a current. The control unit receives the current, supplies or breaks the received current to the oscillation unit, the switch unit and the adjusting unit in response to an inverse control signal. The sub-band generation unit is composed of at least one capacitance element, and selects and transmits a corresponding oscillation frequency the oscillation unit.
摘要翻译：提供一种用于多频带IR-UWB的超低功率脉冲发生器及其方法，用于通过改变振荡频率来在子频带之间提供简单的切换功能。用于多频带IR-UWB的超低功率脉冲发生器包括振荡单元（510），开关单元（520），微调单元（517），功率单元（540），控制单元（530）和子带生成单元（513）。振荡单元产生并输出正弦波。开关单元响应于输入控制信号来激活或去激活振荡单元。微调单元调整正弦波的频率。电源单元提供电流。控制单元接收电流，响应于反向控制信号将接收到的电流供应或断开到振荡单元，开关单元和调节单元。子带生成单元由至少一个电容元件构成，并且选择并发送相应的振荡频率的振荡单元。

82. 发明公开

KR1020080052171A 프리앰블을 이용하여 주파수를 보상하는 장치 및 그 방법 失效
标题翻译：使用前缀补偿频率偏移的装置和使用其的方法
公开(公告)号：KR1020080052171A
公开(公告)日：2008-06-11
申请号：KR1020070040488
申请日：2007-04-25
申请人： 한국전자통신연구원
发明人： 김경표 , 이우용 , 김내수 , 표철식
IPC分类号： H04L7/04 , H04L7/02
CPC分类号： H04L7/041 , H04L7/02
摘要： An apparatus and a method for compensating for a frequency using a preamble are provided to improve accuracy of calculation for a frequency offset by delaying a received signal with a parallel structure, calculating a phase difference, and calculating an average value. An apparatus for compensating for a frequency using a preamble comprises a signal delaying part(210,211,212), a phase calculating part(213,215,216), an average calculating part(217,218,219), and an averaging part(220). In the signal delaying part, at least one or more delaying parts delaying a received first signal for a predetermined time and outputting the delayed signal are connected sequentially, and outputs at least one or more second signals having a different delay time, respectively. The phase calculating part obtains each pair of complex numbers of the second signals, performs a predetermined operation between each pair of the complex numbers and the first signal for obtaining phase difference, respectively. The average calculating part calculates an average value of the phase differences for a predetermined time. The averaging part calculates an average value for at least one or more average values of the average calculating part, and outputs the average value as a frequency offset.
摘要翻译：提供了一种使用前置码补偿频率的装置和方法，以通过使用并行结构延迟接收信号，计算相位差和计算平均值来提高频偏的计算精度。一种使用前导码补偿频率的装置包括信号延迟部分（210,211,212），相位计算部分（213,215,216），平均计算部分（217,218,219）和平均部分（220）。在信号延迟部分中，顺序地连接延迟接收的第一信号预定时间并输出延迟信号的至少一个或多个延迟部分，并分别输出具有不同延迟时间的至少一个或多个第二信号。相位计算部分获得第二信号的每对复数，分别在每对复数之间执行预定的操作和用于获得相位差的第一信号。平均计算部分计算预定时间的相位差的平均值。平均部分计算平均计算部分的至少一个或多个平均值的平均值，并将平均值作为频率偏移输出。

83. 发明公开

KR1020080050966A 무선 센서 네트워크의 운영시간 확장 방법 有权
标题翻译： IEEE802.15.4中扩展网络间隔的方法，用于扩展USN的生命周期
公开(公告)号：KR1020080050966A
公开(公告)日：2008-06-10
申请号：KR1020070071267
申请日：2007-07-16
申请人： 한국전자통신연구원
发明人： 김세한 , 김내수 , 표철식
IPC分类号： H04L12/28
摘要： A method for extending an operation time of a wireless sensor network is provided to lengthen an operation time of an overall sensor network system for the same power. A preliminary value of a BI(Beacon Interval) is calculated(S501) and compared with a maximum BI(S502). If the preliminary value of the BI is smaller than the maximum BI, a new BI is calculated by adding a value obtained by multiplying a weight value to the maximum BI(S503). In order to inform other nodes about the calculated new BI through a packet, a reserved field of a super-frame specification field is set as 1. If the preliminary value of the BI is larger than the maximum BI, the preliminary value of the BI is used as a new BI(S504).
摘要翻译：提供了一种用于延长无线传感器网络的操作时间的方法，以延长相同功率的整个传感器网络系统的操作时间。计算BI（信标间隔）的初始值（S501）并与最大BI进行比较（S502）。如果BI的初始值小于最大BI，则通过将通过将权重值乘以最大BI获得的值来计算新的BI（S503）。为了通过分组通知其他节点关于计算出的新BI，将超帧规范字段的保留字段设置为1.如果BI的初始值大于最大BI，则BI的初始值被用作新的BI（S504）。

84. 发明公开

KR1020080050963A 무선 센서 네트워크에서의 멀티채널 운용 방법 失效
标题翻译：在无线传感器网络中操作多通道的方法
公开(公告)号：KR1020080050963A
公开(公告)日：2008-06-10
申请号：KR1020070069614
申请日：2007-07-11
申请人： 한국전자통신연구원
发明人： 류재홍 , 김봉수 , 표철식 , 채종석 , 김동원
IPC分类号： H04L12/28 , H04L12/66 , H04B7/26 , G06K17/00
CPC分类号： Y02D70/10 , H04L12/44 , H04L12/403 , H04W84/18
摘要： A multi-channel operating method in a wireless sensor network is provided to meet the demands that a network transmission performance is high and a data loss is prevented while satisfying requirements of a wireless sensor network operating with low power. A parallel degree is calculated to set a coordinator of each PAN(Personal Area Network). Channel information of each PAN is managed. A beacon frame including superframe schedule information of a main channel and a different channel is generated and transmitted to each node of a corresponding PAN. Data are received by using the superframe schedule information of the different channel(auxiliary channel) during a non-activation interval of the main channel. In managing the channel information, a start time and an end time of the different channel are managed as relative time information based on the schedule of the main channel.
摘要翻译：提供了一种无线传感器网络中的多通道操作方法，以满足网络传输性能高，防止数据丢失的要求，同时满足以低功耗运行的无线传感器网络的要求。计算并行度来设置每个PAN（个人区域网络）的协调器。管理每个PAN的通道信息。生成包含主信道和不同信道的超帧调度信息的信标帧，并将其发送到对应PAN的各节点。在主信道的非激活间隔期间，通过使用不同信道（辅助信道）的超帧调度信息来接收数据。在管理信道信息时，基于主信道的调度，将不同信道的开始时间和结束时间作为相对时间信息进行管理。

85. 发明公开

KR1020080050924A 개인 무선 통신망에서의 타이머를 이용한 방송형 데이터수신 방법 有权
标题翻译：在无线个人网络中使用定时器接收广播数据的方法
公开(公告)号：KR1020080050924A
公开(公告)日：2008-06-10
申请号：KR1020070015473
申请日：2007-02-14
申请人： 한국전자통신연구원 , 중앙대학교 산학협력단
发明人： 이인환 , 신창섭 , 홍상기 , 김봉수 , 표철식 , 조성래
IPC分类号： H04B7/26 , H04L12/28 , H04L1/16 , H04L29/02
CPC分类号： Y02D70/10 , H04L12/18 , H04L1/0693 , H04L1/1883 , H04L69/28 , H04W4/06 , Y02D70/00
摘要： A method for receiving broadcast data using a timer in a personal wireless communication network is provided to be utilized for an application such as a broadcast service of a ubiquitous and low power personal wireless network by minimizing power consumption. A reception node receives broadcast data from a transmission node in a standby state(501,502). The reception node performs decoding and error inspection on the received data(503) to check whether there is an error in the data(504). If the received data has an error, the reception node drives a 'NAK' timer(505). The reception node checks whether the 'NAK' timer has expired(506). If the 'NAK' timer has expired, the reception node transmits a 'NAK' signal to the transmission node(507). If the 'NAK' timer has not expired, the reception node checks whether the same data is received again(509). If the same data is received again from the transmission node, the reception node terminates the 'NAK' timer(510).
摘要翻译：提供了一种使用个人无线通信网络中的定时器来接收广播数据的方法，用于通过最小化功率消耗来利用无处不在和低功率个人无线网络的广播服务的应用。接收节点在待机状态下从发送节点接收广播数据（501,502）。接收节点对接收到的数据（503）执行解码和错误检查，以检查数据中是否存在错误（504）。如果接收到的数据有错误，则接收节点驱动“NAK”定时器（505）。接收节点检查“NAK”定时器是否到期（506）。如果“NAK”定时器已经到期，则接收节点向发送节点发送“NAK”信号（507）。如果“NAK”定时器尚未到期，则接收节点检查是否再次接收到相同的数据（509）。如果从发送节点再次接收到相同的数据，则接收节点终止“NAK”定时器（510）。

86. 发明授权

KR100833511B1 휘발성 메모리를 구비한 패시브 태그 失效
标题翻译：被动的标签与挥霍记忆
公开(公告)号：KR100833511B1
公开(公告)日：2008-05-29
申请号：KR1020060125035
申请日：2006-12-08
申请人： 한국전자통신연구원
发明人： 여준호 , 프라이스허브조셉 , 자넥알렉스 , 슈하안드리아 , 손해원 , 정재영 , 모희숙 , 배지훈 , 최길영 , 표철식 , 채종석
IPC分类号： G06K19/07
CPC分类号： G06K19/0723 , G06K19/0705 , G06K19/0717
摘要： A passive tag including a volatile memory is provided to increase the lift span of the passive tag and secure stability of important data. A passive tag communicating with an RFID(Radio Frequency Identification) reader includes a sensor(100), a nonvolatile memory(130), a volatile memory(120), a controller(110), a power supply unit(140), a power management unit(150) and a power receiving unit(160). The sensor senses or measures information on the region in which the tag is located. The controller temporarily stores data sensed or measured by the sensor in the volatile memory and moves the data stored in the volatile memory to the nonvolatile memory according to a predetermined condition. The power management unit measures the intensity of an RF signal received by the power receiving unit, and supplies the RF power received from the RFID reader and the power of the power supply unit to the tag.
摘要翻译：提供了包括易失性存储器的无源标签，以增加无源标签的提升距离并确保重要数据的稳定性。与RFID（射频识别）读取器通信的无源标签包括传感器（100），非易失性存储器（130），易失性存储器（120），控制器（110），电源单元（140）管理单元（150）和电力接收单元（160）。传感器感测或测量标签所在区域的信息。控制器将由传感器感测或测量的数据临时存储在易失性存储器中，并根据预定条件将存储在易失性存储器中的数据移动到非易失性存储器。电力管理单元测量由电力接收单元接收的RF信号的强度，并且将从RFID读取器接收的RF电力和电力供应单元的电力提供给标签。

87. 发明授权

KR100826919B1 무선통신 시스템에서 등화 장치 및 그 방법 失效
标题翻译：移动通信系统中的均衡器和使用它的方法
公开(公告)号：KR100826919B1
公开(公告)日：2008-05-06
申请号：KR1020060124534
申请日：2006-12-08
申请人： 한국전자통신연구원
发明人： 김경표 , 이우용 , 김내수 , 표철식
IPC分类号： H04B7/005 , H04L27/01
CPC分类号： H04L27/01 , H04L25/0202 , H04L2027/0038
摘要： An equalization device in a wireless communication system and a method therefor are provided to estimate channel gains in a process for receiving training signals, and to update the channel gains as the reception process is progressed, thereby preventing delay of equalization time. A channel estimator(20) continuously updates channel gain estimation values while training signals are inputted to an equalization device, and stores the updated channel gain estimation values in a memory(206). When data signals are inputted to the equalization device, a channel gain updator(22) estimates a phase error and a timing error by extracting pilot signals from the data signals, and updates the channel gain estimation values stored in the memory by using the estimated values.
摘要翻译：提供了一种无线通信系统中的均衡装置及其方法，用于估计用于接收训练信号的处理中的信道增益，并且在接收处理进行时更新信道增益，从而防止均衡时间的延迟。信道估计器（20）在训练信号被输入到均衡装置的同时连续更新信道增益估计值，并将更新的信道增益估计值存储在存储器（206）中。当数据信号被输入到均衡装置时，信道增益更新器（22）通过从数据信号提取导频信号来估计相位误差和定时误差，并且通过使用估计值来更新存储在存储器中的信道增益估计值。

88. 发明授权

KR100815154B1 도파관 구조를 가지는 위성통신 다중대역 안테나의 급전장치 有权
标题翻译：用于卫星通信的多天线天线馈线组织波形
公开(公告)号：KR100815154B1
公开(公告)日：2008-03-19
申请号：KR1020070019618
申请日：2007-02-27
申请人： 한국전자통신연구원
发明人： 김영민 , 진광자 , 이은주 , 김봉수 , 표철식
IPC分类号： H01P5/107 , H01P3/00 , H01Q5/50 , H01Q1/28
CPC分类号： H01P5/107 , H01P3/003 , H01Q1/288 , H01Q5/50
摘要： A feeding apparatus of a satellite communication multi-band antenna having a waveguide structure is provided to efficiently use a limited satellite communication channel by performing a communication with a plurality of satellites using a different frequency band with only one antenna. A feeding apparatus of a satellite communication multi-band antenna having a waveguide structure includes a common port(101), a straight line port(102), a side port(103), a connector(104), a partition(105), a coupling slot(106), and an iris(107). The common port of a circular waveguide shape passes a vertical/horizontal polarized wave signal of a Ku-band, and cuts off a vertical/horizontal polarized signal of an X-band. The straight line port of a spherical waveguide shape passes a vertical polarized signal of the Ku-band, and cuts off the horizontal polarized signal of the Ku-band. The side port passes the horizontal polarized signal of the Ku-band, and cuts off the vertical polarized signal of the Ku-band. The connector connects the common port to the straight line port. The partition cuts off the horizontal polarized signal of the Ku-band to be applied to the straight line port. The coupling slot couples the horizontal polarized signal of the Ku-band of the side port. The iris matches impedance between the coupling slot and the side port.
摘要翻译：提供具有波导结构的卫星通信多频带天线的馈送装置，以通过仅使用一个天线与不同频带执行与多个卫星的通信来有效地使用有限的卫星通信信道。具有波导结构的卫星通信多频带天线的馈电装置包括公共端口（101），直线端口（102），侧端口（103），连接器（104），隔板（105）耦合槽（106）和虹膜（107）。圆波导形状的公共端口通过Ku波段的垂直/水平极化波信号，并切断X波段的垂直/水平极化信号。球形波导形状的直线端口通过Ku波段的垂直极化信号，并切断Ku波段的水平极化信号。侧端口通过Ku波段的水平极化信号，并切断Ku波段的垂直极化信号。连接器将公共端口连接到直线端口。分区切断要施加到直线端口的Ku波段的水平极化信号。耦合槽耦合侧端口Ku波段的水平极化信号。光圈匹配耦合槽和侧端口之间的阻抗。

89. 发明授权

KR100799589B1 인식거리 향상을 위한 저전력 전지 지원형무선인식(ＲＦＩＤ) 태그 및 그 웨이크업 방법 失效
标题翻译：无线电频率识别标签和唤醒方法，用于更好的识别和低功耗
公开(公告)号：KR100799589B1
公开(公告)日：2008-01-30
申请号：KR1020060118570
申请日：2006-11-28
申请人： 한국전자통신연구원
发明人： 정재영 , 손해원 , 서종현 , 여준호 , 최길영 , 김내수 , 표철식 , 채종석
IPC分类号： G06K19/07 , H04B1/59
CPC分类号： G06K19/07749 , G06K19/0705
摘要： A low power consumption RFID(Radio Frequency IDentification) tag for improving coverage and a wake-up method thereof are provided to increase the coverage of the RFID tag and detect a command by detecting continuous wave with a minimum standby current of an internal power supply unit and receiving operation voltage when the continuous wave is detected. A power supply unit(250) supplies the operation voltage. A continuous wave detector(225) detects the continuous wave from a signal received from an RFID tag reader by receiving the operation power from the power supply unit. A command detector(245) receives the operation power selectively and detects the command from the signal. A controller(255) performs the detected command by applying the operation power to the command detector if the continuous wave is detected, and cuts off the operation power applied to the command detector if the command is not received from the command detector for a predetermined time. A wake-up signal detector detects a wake-up signal from the signal if the continuous wave is detected. An RF generator(260) generates and provides an operation RF to the controller by receiving the operation power selectively.
摘要翻译：提供了一种用于提高覆盖范围的低功耗RFID（射频识别）标签及其唤醒方法，以增加RFID标签的覆盖范围并通过以内部电源单元的最小待机电流检测连续波来检测命令并且当检测到连续波时接收操作电压。电源单元（250）提供操作电压。连续波检测器（225）通过从电源单元接收操作电力来从RFID标签读取器接收的信号中检测连续波。命令检测器（245）选择性地接收操作功率并从该信号检测命令。如果检测到连续波，则控制器（255）通过对命令检测器施加操作电力来执行检测到的命令，并且如果没有从命令检测器接收到预定时间的命令，则切断施加到命令检测器的操作功率。如果检测到连续波，则唤醒信号检测器从该信号检测唤醒信号。 RF发生器（260）通过选择性地接收操作功率来生成并向控制器提供操作RF。

90. 发明授权

KR100799580B1 ＭＩＭＯ 통신시스템에서의 안테나 및 노드 선택 장치 및그 방법 有权
标题翻译：用于在MIMO系统中选择天线和节点的装置及其方法
公开(公告)号：KR100799580B1
公开(公告)日：2008-01-30
申请号：KR1020060096415
申请日：2006-09-29
申请人： 한국전자통신연구원
发明人： 정운철 , 김내수 , 표철식
IPC分类号： H04B7/08 , H04B7/04
CPC分类号： H04B7/0874 , H04B7/04 , H04B7/088 , H04B7/0413
摘要： An apparatus for selecting an antenna or a node in an MIMO communication system and a method thereof are provided to minimize a communication failure of a link, and to maximize communication capacity by attaining a spatial multiplexing gain via an array antenna mounted on the node. An apparatus for selecting an antenna or a node in an MIMO communication system comprises a receiver(110), the first combination unit(130), the second combination unit(140) and a selecting unit(120). The receiver(110) detects a communication start signal from a received signal. The first combination unit(130) calculates communication capacity on the basis of the communication start signal, finds a combination of transmitting antennas whose value of the communication capacity gets maximized, and performs communication. The second combination unit(140) selects a node which maximizes an average SNR(Signal to Noise Ratio) of each node on the basis of the communication start signal. The selecting unit(120) activates one between the first combination unit(130) and the second combination unit(140) and deactivates the other.
摘要翻译：提供了一种用于MIMO通信系统中选择天线或节点的装置及其方法，以便最小化链路的通信故障，并且通过经由安装在该节点上的阵列天线获得空间复用增益来最大化通信容量。一种用于在MIMO通信系统中选择天线或节点的装置，包括接收机（110），第一组合单元（130），第二组合单元（140）和选择单元（120）。接收机（110）根据接收到的信号检测通信开始信号。第一组合单元（130）基于通信开始信号计算通信容量，找到通信容量的值最大化的发送天线的组合，并进行通信。第二组合单元（140）基于通信开始信号选择使每个节点的平均SNR（信噪比）最大化的节点。所述选择单元（120）激活所述第一组合单元（130）和所述第二组合单元（140）之间的一个，并且使所述第二组合单元（140）停用。

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