利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

21 条记录 (耗时 0.028 秒)

    Parallel automatic frequency offset estimation method and apparatus
    1.
    发明授权
    Parallel automatic frequency offset estimation method and apparatus 有权
    并行自动频偏估计方法及装置

    公开(公告)号：US08422593B2

    公开(公告)日：2013-04-16

    申请号：US12579840

    申请日：2009-10-15

    申请人： Seung-il Myong ,  Jong-sub Cha ,  Hoe-sung Yang ,  Kang-bok Lee ,  Heyung-sub Lee ,  Jong-suk Chae

    发明人： Seung-il Myong ,  Jong-sub Cha ,  Hoe-sung Yang ,  Kang-bok Lee ,  Heyung-sub Lee ,  Jong-suk Chae

    IPC分类号： H03K9/06

    CPC分类号： H04L27/0014 ,  H04L2027/0026 ,  H04L2027/0046

    摘要： Disclosed is a wireless signal receiving apparatus, and more particularly, disclosed is a parallel automatic frequency offset estimation apparatus and method for tracking a frequency offset in an early stage by calculating, in parallel, frequency offsets of a received signal. The parallel automatic frequency offset estimation apparatus includes a receiving unit to receive a data frame; and a frequency offset estimation unit to calculate, in parallel, frequency and phase deviations at different bit intervals within a particular section of the received data frame, to add together the frequency and phase deviations to obtain a first sum of the frequency and phase deviations, and to add the first sum to a frequency phase deviation calculated for each bit after the particular section in the received data frame to obtain a second sum of the frequency and phase deviations. Accordingly, transmission frequency tracking can be performed at higher speed, compared to the conventional systems in which frequency offset acquisition is carried out in stages. Also, accurate tracking of a transmission frequency is possible in an initial frame.

    摘要翻译： 公开了一种无线信号接收装置，更具体地，公开了一种并行自动频率偏移估计装置和方法，用于通过并行计算接收信号的频率偏移来跟踪早期的频率偏移。 并行自动频率偏移估计装置包括：接收单元，用于接收数据帧; 以及频率偏移估计单元，用于并行地计算在接收数据帧的特定部分内的不同比特间隔处的频率和相位偏差，以将频率和相位偏差相加以获得频率和相位偏差的第一和， 并且将第一和加到针对接收数据帧中的特定部分之后的每个比特计算的频率相位偏移，以获得频率和相位偏差的第二和。 因此，与分阶段进行频率偏移获取的常规系统相比，可以以更高的速度执行传输频率跟踪。 此外，在初始帧中可以准确地跟踪传输频率。

    Active RFID apparatus for improving PN code generation
    2.
    发明授权
    Active RFID apparatus for improving PN code generation 有权
    有源RFID设备，用于改善PN码生成

    公开(公告)号：US08401053B2

    公开(公告)日：2013-03-19

    申请号：US12562105

    申请日：2009-09-17

    申请人： Jong-sub Cha ,  Seung-il Myong ,  Heyung-sub Lee ,  Sang-hyun Mo ,  Jong-suk Chae

    发明人： Jong-sub Cha ,  Seung-il Myong ,  Heyung-sub Lee ,  Sang-hyun Mo ,  Jong-suk Chae

    IPC分类号： H04B1/00

    CPC分类号： H04J13/10 ,  H04B1/707 ,  H04J13/0022

    摘要： An active radio frequency identification (RFID) apparatus having an additional transmitter in addition to a single transmitter is provided. The active RFID apparatus includes a first transmitter including a first pseudo noise (PN) code generator to generate a direct sequence spread spectrum (DSSS) introduced by ISO/IEC (International Organization for Standardization/International Electrotechnical Commission) 24730-2 or ISO/IEC 18185-5 type B; and a second transmitter including a second PN code generator to perform an AND operation on an initial value and a fed back value and shift the resultant value of the AND operation, to perform an XOR operation on particular bits from among the shifted bits and to perform an XOR operation again on the shifted bits and the resulting value of the XOR operation to finally generate a PN code. Accordingly, where an additional PN code is added besides an existing PN code, a PN code having excellent auto correlation characteristics allowing discrimination of the PN code itself and cross-correlation characteristics providing a code discrimination ability with respect to another code can be generated.

    摘要翻译： 提供了除了单个发射机之外还具有附加发射机的有源射频识别（RFID）装置。 有源RFID装置包括第一发射机，其包括第一伪噪声（PN）码发生器，以产生由ISO / IEC（国际标准化组织/国际电工委员会）24730-2或ISO / IEC引入的直接序列扩频（DSSS） 18185-5型B; 以及第二发送器，包括第二PN码发生器，用于对初始值和反馈值执行AND运算，并且移位AND运算的结果值，以对从移位中的特定比特执行异或运算，并执行 对移位的位再次进行XOR操作，并且产生XOR运算的结果值，以最终生成PN码。 因此，除了现有的PN码之外附加附加的PN码，可以产生具有能够区分PN码本身的优良自相关特性的PN码和提供相对于其他码的码识别能力的互相关特性。

    RFID sensor tag and sensor data storing method
    3.
    发明授权
    RFID sensor tag and sensor data storing method 有权
    RFID传感器标签和传感器数据存储方法

    公开(公告)号：US08405487B2

    公开(公告)日：2013-03-26

    申请号：US12629451

    申请日：2009-12-02

    申请人： Kang-bok Lee ,  Sang-yeoun Lee ,  Heyung-sub Lee ,  Jong-suk Chae

    发明人： Kang-bok Lee ,  Sang-yeoun Lee ,  Heyung-sub Lee ,  Jong-suk Chae

    IPC分类号： H04Q5/22

    CPC分类号： H04Q9/00 ,  G06K19/0717 ,  H04Q2209/47 ,  H04Q2209/823

    摘要： A method of storing sensor data in a sensor tag is provided. The method comprises receiving new sensor data output from a sensor, comparing the received new sensor data with immediately previous sensor data to determine whether the comparison result satisfies a predetermined criterion, and storing the new sensor data in a tag memory when it is determined that the criterion is satisfied. Accordingly, efficient use of the tag memory is possible.

    摘要翻译： 提供了一种将传感器数据存储在传感器标签中的方法。 该方法包括接收从传感器输出的新的传感器数据，将接收到的新传感器数据与紧接在前的传感器数据进行比较，以确定比较结果是否满足预定标准，并且当确定新传感器数据被确定为 标准满足 因此，标签存储器的有效使用是可能的。

    TAG ANTENNA USING MICROSTRIP LINE, METHOD OF MANUFACTURING THE SAME AND RADIO FREQUENCY IDENTIFICATION TAG
    5.
    发明申请
    TAG ANTENNA USING MICROSTRIP LINE, METHOD OF MANUFACTURING THE SAME AND RADIO FREQUENCY IDENTIFICATION TAG 失效
    使用微波线的TAG天线，其制造方法和无线电频率识别标签

    公开(公告)号：US20100314453A1

    公开(公告)日：2010-12-16

    申请号：US12688753

    申请日：2010-01-15

    申请人： Jeong-seok Kim ,  Hae-won Son ,  Won-kyu Choi ,  Gil-young Choi ,  Jong-suk Chae

    发明人： Jeong-seok Kim ,  Hae-won Son ,  Won-kyu Choi ,  Gil-young Choi ,  Jong-suk Chae

    IPC分类号： G06K19/00 ,  H01Q1/38

    CPC分类号： H01Q13/103 ,  G06K19/07786 ,  H01Q1/2208

    摘要： Disclosed is a Radio Frequency Identification (RFID) tag antenna. The tag antenna includes a lower dielectric substrate and an upper dielectric substrate. The lower dielectric substrate is provided at a lower surface thereof with a ground plane and at an upper surface thereof with two microstrip lines. The microstrip lines each have an open-end, the open ends spaced apart from each other from a middle of the lower dielectric substrate while facing each other to form a radiating slot from which radiation of electromagnetic waves occurs. The upper dielectric substrate is provided at an upper surface thereof with at least one electric capacitive device and is stacked on the lower dielectric substrate. The RFID tag antenna enhances radiation efficiency while achieving miniaturization.

    摘要翻译： 公开了射频识别（RFID）标签天线。 标签天线包括下介电基片和上电介质基片。 下电介质基板在其下表面处设置有接地平面，并且在其上表面处设置有两条微带线。 微带线各自具有开口端，开口端彼此间隔开，并且彼此面对，从而形成辐射狭缝，电磁波发生辐射。 上电介质基板在其上表面设置有至少一个电容器件，并且堆叠在下电介质基片上。 RFID标签天线在实现小型化的同时提高了辐射效率。

    SENSOR NODE HAVING SELF LOCALIZATION FUNCTION AND SELF LOCALIZATION METHOD THEREOF
    7.
    发明申请
    SENSOR NODE HAVING SELF LOCALIZATION FUNCTION AND SELF LOCALIZATION METHOD THEREOF 失效
    具有自身定位功能的传感器节点及其自身的本地化方法

    公开(公告)号：US20100150070A1

    公开(公告)日：2010-06-17

    申请号：US12623001

    申请日：2009-11-20

    申请人： Jong-jun PARK ,  Hoon Jeong ,  Seong-soon Joo ,  Jong-suk Chae

    发明人： Jong-jun PARK ,  Hoon Jeong ,  Seong-soon Joo ,  Jong-suk Chae

    IPC分类号： H04W88/02

    CPC分类号： H04W64/003 ,  G01S5/0027 ,  G01S5/02

    摘要： Disclosed are a sensor node having a self localization function and a self localization method of the sensor node. The sensor node calculates a location thereof by receiving location information measured at each of two mobile nodes at different times and using four location information of the received location information. Additional cost and power consumption required for installing additional equipment such as an anchor node, a ultrasonic transceiver and a signal amplifier are reduced.

    摘要翻译： 公开了具有传感器节点的自定位功能和自定位方法的传感器节点。 传感器节点通过接收在两个移动节点中的每一个在不同时间测量的位置信息并使用接收到的位置信息的四个位置信息来计算其位置。 减少了安装附加设备（如锚节点，超声波收发器和信号放大器）所需的额外成本和功耗。

    Sensor node having self localization function and self localization method thereof
    8.
    发明授权
    Sensor node having self localization function and self localization method thereof 失效
    具有自定位功能的传感器节点及其自定位方法

    公开(公告)号：US08462697B2

    公开(公告)日：2013-06-11

    申请号：US12623001

    申请日：2009-11-20

    申请人： Jong-jun Park ,  Hoon Jeong ,  Seong-soon Joo ,  Jong-suk Chae

    发明人： Jong-jun Park ,  Hoon Jeong ,  Seong-soon Joo ,  Jong-suk Chae

    IPC分类号： H04W4/00

    CPC分类号： H04W64/003 ,  G01S5/0027 ,  G01S5/02

    摘要： Disclosed are a sensor node having a self localization function and a self localization method of the sensor node. The sensor node calculates a location thereof by receiving location information measured at each of two mobile nodes at different times and using four location information of the received location information. Additional cost and power consumption required for installing additional equipment such as an anchor node, a ultrasonic transceiver and a signal amplifier are reduced.

    摘要翻译： 公开了具有传感器节点的自定位功能和自定位方法的传感器节点。 传感器节点通过接收在两个移动节点中的每一个在不同时间测量的位置信息并使用接收到的位置信息的四个位置信息来计算其位置。 减少了安装附加设备（如锚节点，超声波收发器和信号放大器）所需的额外成本和功耗。

    METHOD OF TRANSMISSION OF LARGE DATA AMOUNTS IN SENSOR NETWORK BASED ON MAC
    9.
    发明申请
    METHOD OF TRANSMISSION OF LARGE DATA AMOUNTS IN SENSOR NETWORK BASED ON MAC 有权
    基于MAC传感器网络传输大数据量的方法

    公开(公告)号：US20100153808A1

    公开(公告)日：2010-06-17

    申请号：US12611532

    申请日：2009-11-03

    申请人： Kye-seon Lee ,  Nae-soo Kim ,  Cheol-sig Pyo ,  Jong-suk Chae

    发明人： Kye-seon Lee ,  Nae-soo Kim ,  Cheol-sig Pyo ,  Jong-suk Chae

    IPC分类号： H04L1/18 ,  G06F11/14

    CPC分类号： H04L1/1628 ,  H04L1/0083 ,  H04L1/1874

    摘要： 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.

    摘要翻译： 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。

    Tag antenna using microstrip line, method of manufacturing the same and radio frequency identification tag
    10.
    发明授权
    Tag antenna using microstrip line, method of manufacturing the same and radio frequency identification tag 失效
    使用微带线的标签天线，制造方法和射频识别标签

    公开(公告)号：US08654012B2

    公开(公告)日：2014-02-18

    申请号：US12688753

    申请日：2010-01-15

    申请人： Jeong-seok Kim ,  Hae-won Son ,  Won-kyu Choi ,  Gil-young Choi ,  Jong-suk Chae

    发明人： Jeong-seok Kim ,  Hae-won Son ,  Won-kyu Choi ,  Gil-young Choi ,  Jong-suk Chae

    IPC分类号： H01Q1/38

    CPC分类号： H01Q13/103 ,  G06K19/07786 ,  H01Q1/2208

    摘要： Disclosed is a Radio Frequency Identification (RFID) tag antenna. The tag antenna includes a lower dielectric substrate and an upper dielectric substrate. The lower dielectric substrate is provided at a lower surface thereof with a ground plane and at an upper surface thereof with two microstrip lines. The microstrip lines each have an open-end, the open ends spaced apart from each other from a middle of the lower dielectric substrate while facing each other to form a radiating slot from which radiation of electromagnetic waves occurs. The upper dielectric substrate is provided at an upper surface thereof with at least one electric capacitive device and is stacked on the lower dielectric substrate. The RFID tag antenna enhances radiation efficiency while achieving miniaturization.

    摘要翻译： 公开了射频识别（RFID）标签天线。 标签天线包括下介电基片和上电介质基片。 下电介质基板在其下表面处设置有接地平面，并且在其上表面处设置有两条微带线。 微带线各自具有开口端，开口端彼此间隔开，并且彼此面对，从而形成辐射狭缝，电磁波发生辐射。 上电介质基板在其上表面设置有至少一个电容器件，并且堆叠在下电介质基片上。 RFID标签天线在实现小型化的同时提高了辐射效率。