会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Method of transmission of large data amounts in sensor network based on MAC
    • 基于MAC的传感器网络传输大数据量的方法
    • US08332707B2
    • 2012-12-11
    • US12611532
    • 2009-11-03
    • Kye-seon LeeNae-soo KimCheol-sig PyoJong-suk Chae
    • Kye-seon LeeNae-soo KimCheol-sig PyoJong-suk Chae
    • G06F11/00
    • H04L1/1628H04L1/0083H04L1/1874
    • A large data transmission method in a sensor network based on a media access control (MAC) is provided. The method includes dividing data to be transferred into a plurality of data segments; generating a plurality of media access control (MAC) segmented data frames by including in each data segment an indication that the data is generated by segmentation and assigning a sequence number to the data segment; transmitting the generated MAC segmented data frames sequentially; receiving a MAC reception failure frame indicating reception failure for a predetermined period of time from a receiving sensor node after completing the transmitting of all the MAC segmented data frames; and retransmitting the MAC segmented data frames which correspond to at least one sequence number included in the received MAC reception failure frame. Accordingly, large data transmission times can be reduced in a MAC for a sensor network.
    • 提供了一种基于媒体访问控制(MAC)的传感器网络中的大数据传输方法。 该方法包括将要传送的数据划分成多个数据段; 通过在每个数据段中包括通过分割生成数据并向数据段分配序列号的指示来生成多个媒体访问控制(MAC)分段数据帧; 依次发送生成的MAC分段数据帧; 在完成所有MAC分段数据帧的发送之后,从接收传感器节点接收指示接收到故障的MAC接收失败帧一段预定时间; 并重发与所接收的MAC接收失败帧中包含的至少一个序列号对应的MAC分段数据帧。 因此,传感器网络的MAC可以减少大的数据传输时间。
    • 2. 发明申请
    • METHOD OF TRANSMISSION OF LARGE DATA AMOUNTS IN SENSOR NETWORK BASED ON MAC
    • 基于MAC传感器网络传输大数据量的方法
    • US20100153808A1
    • 2010-06-17
    • US12611532
    • 2009-11-03
    • Kye-seon LeeNae-soo KimCheol-sig PyoJong-suk Chae
    • Kye-seon LeeNae-soo KimCheol-sig PyoJong-suk Chae
    • H04L1/18G06F11/14
    • H04L1/1628H04L1/0083H04L1/1874
    • A large data transmission method in a sensor network based on a media access control (MAC) is provided. The method includes dividing data to be transferred into a plurality of data segments; generating a plurality of media access control (MAC) segmented data frames by including in each data segment an indication that the data is generated by segmentation and assigning a sequence number to the data segment; transmitting the generated MAC segmented data frames sequentially; receiving a MAC reception failure frame indicating reception failure for a predetermined period of time from a receiving sensor node after completing the transmitting of all the MAC segmented data frames; and retransmitting the MAC segmented data frames which correspond to at least one sequence number included in the received MAC reception failure frame. Accordingly, large data transmission times can be reduced in a MAC for a sensor network.
    • 提供了一种基于媒体访问控制(MAC)的传感器网络中的大数据传输方法。 该方法包括将要传送的数据划分成多个数据段; 通过在每个数据段中包括通过分割生成数据的指示并将序列号分配给数据段来生成多个媒体访问控制(MAC)分段数据帧; 依次发送生成的MAC分段数据帧; 在完成所有MAC分段数据帧的发送之后,从接收传感器节点接收指示接收到故障的MAC接收失败帧一段预定时间; 并重发与所接收的MAC接收失败帧中包含的至少一个序列号对应的MAC分段数据帧。 因此,传感器网络的MAC可以减少大的数据传输时间。
    • 3. 发明申请
    • WIRELESS SENSOR NODE
    • 无线传感器节点
    • US20100146356A1
    • 2010-06-10
    • US12630354
    • 2009-12-03
    • Tae-joon PARKHo-yong KangNae-soo KimCheol-sig PyoJong-suk Chae
    • Tae-joon PARKHo-yong KangNae-soo KimCheol-sig PyoJong-suk Chae
    • H04L1/18H04L12/28H03M13/09G06F11/10G06F11/14
    • H04L61/2038H03M13/09H03M13/15H04L29/12254
    • A wireless sensor node is provided which is divided into functional modules on a function basis and operates the functional modules to cooperatively perform its individual functions. The wireless sensor node includes a wireless transceiver to wirelessly communicate with a control node; a primary configuration unit to set a node identification address in communication with a control node; a secondary configuration unit to use the node identification address to register with the control node and set an address for communication which is assigned by the control node; a basic power supply to supply power to modules for communication and sensor control; functional modules to perform data processing and sensor control; and a functional module activator to activate the functional modules according to a type of received data or an operation for data transmission.
    • 提供了一种基于功能分为功能模块的无线传感器节点,并且操作功能模块以协作地执行其各自的功能。 无线传感器节点包括与控制节点无线通信的无线收发器; 主配置单元,用于设置与控制节点通信的节点标识地址; 第二配置单元,用于使用节点识别地址向控制节点注册,并设置由控制节点分配的用于通信的地址; 为通信和传感器控制的模块供电的基本电源; 功能模块进行数据处理和传感器控制; 以及功能模块激活器,用于根据接收数据的类型或数据传输的操作激活功能模块。
    • 5. 发明申请
    • IMPEDANCE MATCHING DEVICE OF SENSOR NODE AND IMPEDANCE MATCHING METHOD OF SENSOR NODE
    • 传感器节点的阻抗匹配装置和传感器节点的阻抗匹配方法
    • US20080136548A1
    • 2008-06-12
    • US11860388
    • 2007-09-24
    • Juderk PARKNae-soo KimCheol Sig Pyo
    • Juderk PARKNae-soo KimCheol Sig Pyo
    • H03H7/38
    • H03H7/40
    • Provided are an impedance matching device of a sensor node and an impedance matching method of a sensor node. The impedance matching device comprises: a variable impedance matching unit disposed between a transmission unit, which is used for modulating a received signal to a radio frequency (RF) signal and outputting the RF signal, and an antenna and including a plurality of impedance matching circuits which have different impedance values from each other; a signal intensity measuring unit which measures the intensity of an output signal that is output through the variable impedance matching unit; and a control unit which controls one of the impedance matching circuits of the variable impedance matching unit to have an impedance value that maximizes the intensity of the output signal. Accordingly, impedance between the transmission unit and the antenna of the sensor node is adjusted when the impedance varies due to the environment in which the sensor node is used, and thus the transmission efficiency of the sensor node is improved. Consequently, a limited power source of the sensor node can be used for a longer duration, the sensor node can be connected to other sensor nodes more successfully, and the communication reliability of the sensor node can be secured.
    • 提供传感器节点的阻抗匹配装置和传感器节点的阻抗匹配方法。 阻抗匹配装置包括:可变阻抗匹配单元,设置在用于将接收信号调制到射频(RF)信号并输出​​RF信号的传输单元之间,以及包括多个阻抗匹配电路的天线 它们彼此具有不同的阻抗值; 信号强度测量单元,其测量通过可变阻抗匹配单元输出的输出信号的强度; 以及控制单元,其控制可变阻抗匹配单元的阻抗匹配电路之一以具有使输出信号的强度最大化的阻抗值。 因此,当阻抗由于使用传感器节点的环境而变化时,传感器节点的传输单元和天线之间的阻抗被调整,因此提高了传感器节点的传输效率。 因此,传感器节点的有限电源可以使用更长的时间,传感器节点可以更成功地连接到其他传感器节点,并且可以确保传感器节点的通信可靠性。
    • 7. 发明授权
    • Apparatus and method for synchronizing symbol timing using timing loop controller
    • 使用定时环路控制器同步符号定时的装置和方法
    • US07263142B2
    • 2007-08-28
    • US10722103
    • 2003-11-24
    • PanSoo KimYoung Wan KimNae-soo Kim
    • PanSoo KimYoung Wan KimNae-soo Kim
    • H04L27/06
    • H04L7/0054
    • A timing loop controller for multilevel modulation scheme is disclosed. The timing loop controller includes a first to fourth computing unit for computing a timing error between an input timing of digital signals and a sampling timing; a first to fourth quantization unit for controlling a direction and an error value of the timing error; a first and second sign detection unit for detecting sign change according to results; a zero crossing detection unit for detecting zero crossing at I axis and Q axis; and a timing error control unit for controlling the timing error value in case there is no sign change. The present invention can increase a zitter performance of timing error according to the signal-to-noise ratio by detecting the timing error, outputting the timing error and controlling the timing error output value only in case there is sign change by additionally equipping the sign variation detector.
    • 公开了一种用于多电平调制方案的定时环路控制器。 定时回路控制器包括:第一至第四计算单元,用于计算数字信号的输入定时与采样定时之间的定时误差; 用于控制定时误差的方向和误差值的第一至第四量化单元; 用于根据结果检测符号变化的第一和第二符号检测单元; 零交叉检测单元,用于检测I轴和Q轴的过零点; 以及定时误差控制单元,用于在没有符号改变的情况下控制定时误差值。 本发明可以通过检测定时误差来提高定时误差的抖动性能,通过检测定时误差,输出定时误差并且仅在通过附加装配符号变化的情况下控制定时误差输出值 探测器。
    • 9. 发明授权
    • Pragmatic trellis code modulation decoder and a method thereof
    • 实用格码编码调制解码器及其方法
    • US07340002B2
    • 2008-03-04
    • US10719509
    • 2003-11-21
    • Eun A ChoiNae-soo KimDeock Gil OhJi Won Jung
    • Eun A ChoiNae-soo KimDeock Gil OhJi Won Jung
    • H04L5/12H04L23/02
    • H04L1/006H03M13/256H03M13/336H03M13/3776H03M13/41H03M13/6362H04L1/0054H04L27/186H04L27/22
    • A pragmatic trellis code modulation decoder including a demodulator for receiving a modulated signal and computing coordination values of symbols of the modulated signal on an I-axis and Q-axis in a constellation; a coset mapper for generating 3-bit soft decision data based on the computed coordinate values; a viterbi decoder for receiving 3-bit soft decision data and generating 1-bit data as a coded data by decoding the 3-bit soft decision data; a re-encoder for receiving the 1-bit data from the viterbi decoder and obtaining un-coded information in order to compute an un-coded data; a sector phase quantizer for obtaining I channel and Q channel information based on the coordination values from the demodulator in order to obtain un-coded data; a time delayer for delaying output of the sector phase quantizer until the re-encoder outputs the un-coded information; and a non-coded code decoder for computing the un-coded data.
    • 一种实用的格码编码调制解码器,包括:解调器,用于接收调制信号,并在星座中的I轴和Q轴上计算调制信号的符号的协调值; 用于基于所计算的坐标值产生3位软判决数据的陪集映射器; 维特比解码器,用于通过解码3位软判决数据来接收3位软判决数据并生成1位数据作为编码数据; 用于从维特比解码器接收1位数据并获得未编码信息以便计算未编码数据的重新编码器; 用于基于来自解调器的协调值来获得I信道和Q信道信息以获得未编码数据的扇区相位量化器; 用于延迟扇区相位量化器的输出的时间延迟器,直到重新编码器输出未编码的信息; 以及用于计算未编码数据的非编码码解码器。