公开(公告)号：US20070110067A1

公开(公告)日：2007-05-17

申请号：US11487534

申请日：2006-07-13

申请人： Chang-Sub Shin ,  Hyun Lee ,  Han-Byeog Cho ,  Hyuk-Joon Lee ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Chang-Sub Shin ,  Hyun Lee ,  Han-Byeog Cho ,  Hyuk-Joon Lee ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： H04L12/56

CPC分类号： H04W40/26

摘要： Provided is a Media Access Control (MAC) forwarding method for multi-hop routing in a communication system between vehicles. The method includes the steps of: a) receiving a frame from all nodes and checking whether there are duplicate frames; b) partly updating forwarding cache table (FCT) information, or updating SNT information and checking whether a destination address is a corresponding node; c) updating the FCT information, transmitting an Ack signal and transferring the frame to the upper layer, or searching whether the destination address is registered as “d_addr”; d) updating the FCT information and transmitting a delay ACK frame or checking whether the transmitted frame is a flooding frame; and e) updating the FCT information, checking whether the other node does not transmit the “d_ack” and inserting a flooding frame, otherwise, updating the FCT information and abandoning the frame.

摘要翻译： 提供了一种用于车辆之间的通信系统中的多跳路由的媒体接入控制（MAC）转发方法。 该方法包括以下步骤：a）从所有节点接收帧并检查是否存在重复帧; b）部分更新转发高速缓存表（FCT）信息，或更新SNT信息并检查目的地址是否是对应节点; c）更新FCT信息，发送Ack信号并将帧传送到上层，或者搜索目的地地址是否被注册为“d_addr”; d）更新FCT信息并发送延迟ACK帧或检查所发送的帧是否是泛洪帧; 以及e）更新FCT信息，检查其他节点是否不发送“d_ack”并插入洪泛帧，否则更新FCT信息并放弃该帧。

公开(公告)号：US20070080867A1

公开(公告)日：2007-04-12

申请号：US11526457

申请日：2006-09-25

申请人： Hae-Won Son ,  Won-Kyu Choi ,  Chan-Soo Shin ,  Gil-Young Choi ,  Cheol-Sig Pyo

发明人： Hae-Won Son ,  Won-Kyu Choi ,  Chan-Soo Shin ,  Gil-Young Choi ,  Cheol-Sig Pyo

IPC分类号： H01Q1/38

CPC分类号： H01Q9/0407 ,  H01Q1/2208 ,  H01Q1/38 ,  H01Q9/0421 ,  H01Q9/0457

摘要： An antenna, a RFID tag using the same, and an antenna impedance matching method thereof are provided. The antenna includes: a radiation patch for deciding a resonant frequency of the antenna; a ground plate disposed in parallel to the radiation patch; and a feeder disposed between the radiation patch and the ground plate in parallel for providing a RF signal to an element connected to the antenna, wherein the feeder includes a microstrip feed line proximately coupled to the radiation patch by being formed perpendicularly to the resonant length direction of the radiation patch.

摘要翻译： 提供一种天线，使用其的RFID标签及其天线阻抗匹配方法。 该天线包括：用于确定天线的谐振频率的辐射贴片; 与辐射贴片平行布置的接地板; 以及平行地设置在辐射贴片和接地板之间的馈电器，用于向连接到天线的元件提供RF信号，其中馈电器包括通过垂直于谐振长度方向形成的靠近辐射贴片的微带馈电线 的辐射贴片。

公开(公告)号：US20070069864A1

公开(公告)日：2007-03-29

申请号：US11527998

申请日：2006-09-27

申请人： Ji-Hoon Bae ,  Chan-Won Park ,  Hee-Sook Mo ,  Dong-Han Lee ,  Chenghao Quan ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Ji-Hoon Bae ,  Chan-Won Park ,  Hee-Sook Mo ,  Dong-Han Lee ,  Chenghao Quan ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： H04Q5/22

CPC分类号： H04B5/02 ,  H04B5/0062

摘要： Provided are a tag signal receiving apparatus that can perform digital Amplitude Shift Keying (ASK) demodulation onto signals received in a tag, decode the demodulated tag signal in synchronization, and acquire tag data in a mobile RFID reader, and a method thereof. The tag signal receiving apparatus includes: a digital demodulating block for performing ASK demodulation onto a digital tag signal received through a reader antenna and converted into a digital tag signal in an analog-to-digital (AD) converter; and a decoding block for detecting edge position information of the demodulated tag signal by performing accumulation and decoding the demodulated tag signal by using the detected edge position information. The digital demodulating block includes a channel level comparator, a phase inverter, a signal converter; and an adder. The decoding block includes an edge information detector, a correlator, and a bit data decider.

摘要翻译： 提供一种标签信号接收装置，其可以对在标签中接收的信号执行数字幅移键控（ASK）解调，同步解码解调的标签信号，并在移动RFID读取器中获取标签数据及其方法。 标签信号接收装置包括：数字解调块，用于对通过读取器天线接收的数字标签信号进行ASK解调，并在模数（AD）转换器中转换为数字标签信号; 以及解码块，用于通过使用检测到的边缘位置信息来对解调的标签信号进行累加和解码来检测解调标签信号的边缘位置信息。 数字解调块包括信道电平比较器，相位逆变器，信号转换器; 和加法器。 解码块包括边缘信息检测器，相关器和位数据判定器。

公开(公告)号：US20050104778A1

公开(公告)日：2005-05-19

申请号：US10865382

申请日：2004-06-09

申请人： Won-Kyu Choi ,  Yong-Heui Cho ,  Cheol-Sig Pyo ,  Soon-Ik Jeon ,  Chang-Joo Kim

发明人： Won-Kyu Choi ,  Yong-Heui Cho ,  Cheol-Sig Pyo ,  Soon-Ik Jeon ,  Chang-Joo Kim

IPC分类号： H01Q13/08 ,  H01Q9/04 ,  H01Q1/38

CPC分类号： H01Q9/0442 ,  H01Q9/0407

摘要： A microstrip patch antenna formed by using a microelectro-mechanical system technology is included. The microstrip patch antenna includes: a substrate provided with a ground formed on a bottom surface of the substrate; a feeding line formed on a top surface of the substrate for feeding an electric power; a coupling stub formed on the top surface of the substrate and electrically connected to the feeding line; a plurality of supporting posts erected on the top surface of the substrate; and a radiating patch formed on the supporting posts, thereby forming an area of air between the radiating patch and the top surface of the substrate.

摘要翻译： 包括使用微电子机械系统技术形成的微带贴片天线。 微带贴片天线包括：设置有形成在基板的底表面上的接地的基板; 馈电线，形成在所述基板的顶表面上用于馈送电力; 形成在基板的顶表面上并电连接到馈电线的耦合短截线; 竖立在基板顶表面上的多个支柱; 以及形成在支撑柱上的辐射贴片，从而在辐射贴片和衬底的顶表面之间形成空气区域。

公开(公告)号：US09030217B2

公开(公告)日：2015-05-12

申请号：US13605554

申请日：2012-09-06

申请人： Hyunseok Kim ,  Su Na Choi ,  Heyung Sub Lee ,  Cheol Sig Pyo

发明人： Hyunseok Kim ,  Su Na Choi ,  Heyung Sub Lee ,  Cheol Sig Pyo

IPC分类号： G06K19/07

CPC分类号： G06K19/0726 ,  G06K19/0722

摘要： In integrated circuit chips that are used for RFID, a method of calibrating an operation frequency that is generated in an operation frequency generator and a semiconductor wafer including a calibration circuit are provided. The method of calibrating an operation frequency of integrated circuit chips includes: supplying DC power to the integrated circuit chips; selecting an integrated circuit chip to perform calibration of an operation frequency; receiving an operation frequency that is generated in the selected integrated circuit chip; calculating a difference between a phase of the operation frequency and a phase of a calibration target frequency; generating a frequency calibration value of the operation frequency using the phase difference; transmitting a control signal including the frequency calibration value to the integrated circuit chip; and releasing a selection of the integrated circuit chip in which calibration of the operation frequency is complete.

摘要翻译： 在用于RFID的集成电路芯片中，提供校准在操作频率发生器中产生的操作频率的方法和包括校准电路的半导体晶片。 校准集成电路芯片的工作频率的方法包括：向集成电路芯片提供直流电力; 选择集成电路芯片来执行操作频率的校准; 接收在所选集成电路芯片中产生的工作频率; 计算操作频率的相位和校准目标频率的相位之间的差; 使用相位差产生运转频率的频率校准值; 将包括所述频率校准值的控制信号发送到所述集成电路芯片; 并且释放其中操作频率的校准完成的集成电路芯片的选择。

公开(公告)号：US08467327B2

公开(公告)日：2013-06-18

申请号：US12874856

申请日：2010-09-02

申请人： Seung Ki Hong ,  Jong Arm Jun ,  Cheol Sig Pyo ,  Sang Hun Lee ,  Lynn Choi

发明人： Seung Ki Hong ,  Jong Arm Jun ,  Cheol Sig Pyo ,  Sang Hun Lee ,  Lynn Choi

IPC分类号： G08C17/00

CPC分类号： H04W40/005 ,  H04L45/48 ,  H04W76/28 ,  H04W84/18 ,  Y02D70/00

摘要： Provided are a communication method and system for sensor network. In reporting event occurrence in a real-time sensor network application, a cycle time is divided into an event announcement period and a data transmission period to provide real-time transmission performance and energy efficiency. Each of the periods is again divided into the number of slots equal to the maximum depth of a network. Respective nodes sequentially operate according to their depths in a routing tree during the event announcement period to receive the signal transmitted from the lower node. To remove sleep delay, a slot next to the signal reception slot becomes a signal transmission slot. A node sensed an event transmits a signal informing event occurrence during its signal transmission slot, and this signal includes only the address of the transmission node. When a signal does not exist in the event announcement period, no traffic occurs in the data transmission period and the upper nodes maintain a sleep state. When a signal is transmitted during the event announcement period, nodes transmitting/receiving a corresponding signal operate during the data transmission period to transfer data packets.

摘要翻译： 提供了一种用于传感器网络的通信方法和系统。 在报告实时传感器网络应用中的事件发生时，将周期时间分为事件通知周期和数据传输周期，以提供实时传输性能和能量效率。 每个周期再次被划分为等于网络的最大深度的时隙数。 各个节点在事件发布周期期间根据路由树中的深度依次操作以接收从下层节点发送的信号。 为了消除睡眠延迟，信号接收时隙旁边的时隙成为信号传输时隙。 感测事件的节点在其信号传输时隙期间发送通知事件发生的信号，并且该信号仅包括传输节点的地址。 当事件通知期间不存在信号时，在数据发送期间不发生业务，上层节点保持睡眠状态。 当在事件发布期间发送信号时，发送/接收相应信号的节点在数据传输周期期间运行以传送数据分组。

公开(公告)号：US08442167B2

公开(公告)日：2013-05-14

申请号：US12746431

申请日：2008-07-29

申请人： Seung Il Myong ,  Hoe-Sung Yang ,  Dong-Beom Shin ,  Nak Seon Seong ,  Heyung Sub Lee ,  Cheol Sig Pyo

发明人： Seung Il Myong ,  Hoe-Sung Yang ,  Dong-Beom Shin ,  Nak Seon Seong ,  Heyung Sub Lee ,  Cheol Sig Pyo

IPC分类号： H04B1/10

CPC分类号： H04L27/0014 ,  H04L25/0212

摘要： A multistage channel estimation method and apparatus is provided. The multistage channel estimation method includes: receiving a data frame to compensate for a distortion of the data frame based on a first channel estimation value associated with a corresponding section of the data frame; a first step of changing the corresponding section to calculate a second channel estimation value associated with the changed section; a second step of updating the first channel estimation value based on the calculated second channel estimation value; a third step of compensating for the distortion of the data frame based on the updated first channel estimation value to count a number of compensations; and repeating the first step through the third step, when the counted number of compensations does not match a predetermined numerical value.

摘要翻译： 提供了一种多级信道估计方法和装置。 多级信道估计方法包括：基于与数据帧的相应部分相关联的第一信道估计值，接收数据帧以补偿数据帧的失真; 改变相应部分以计算与改变部分相关联的第二信道估计值的第一步骤; 基于计算出的第二信道估计值更新第一信道估计值的第二步骤; 基于更新的第一信道估计值来补偿数据帧的失真以对多个补偿进行计数的第三步骤; 并且当计数的补偿次数与预定数值不匹配时，重复第一步骤到第三步骤。

公开(公告)号：US08314703B2

公开(公告)日：2012-11-20

申请号：US12504397

申请日：2009-07-16

申请人： Kang Bok Lee ,  Heyung Sub Lee ,  Sang Yeoun Lee ,  Jae Heum Lee ,  Dong-Beom Shin ,  Hyunseok Kim ,  Jae-young Jung ,  Cheol Sig Pyo ,  Jong-Suk Chae

发明人： Kang Bok Lee ,  Heyung Sub Lee ,  Sang Yeoun Lee ,  Jae Heum Lee ,  Dong-Beom Shin ,  Hyunseok Kim ,  Jae-young Jung ,  Cheol Sig Pyo ,  Jong-Suk Chae

IPC分类号： G08B13/14

CPC分类号： G06Q10/087

摘要： Provided is a method and apparatus for managing a product distribution. The product distribution management method may include: reading a security key of a product from a security tag attached to the product; transferring the read security key to a security server; receiving, from the security server, first authentication information that is encrypted using the security key; receiving, from the security tag, second authentication information that is encrypted using the security key; and determining whether the security tag is duplicated, based on the first authentication information and the second authentication information.

摘要翻译： 提供了一种用于管理产品分发的方法和装置。 产品分发管理方法可以包括：从附加到产品的安全标签读取产品的安全密钥; 将读取的安全密钥传送到安全服务器; 从所述安全服务器接收使用所述安全密钥加密的第一认证信息; 从所述安全标签接收使用所述安全密钥加密的第二认证信息; 以及基于所述第一认证信息和所述第二认证信息来确定所述安全标签是否被复制。

公开(公告)号：US08254342B2

公开(公告)日：2012-08-28

申请号：US12517556

申请日：2007-10-24

申请人： Hoon Jeong ,  Jong-Oh Lee ,  Jong-Young Lee ,  Sun-Joong Kim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Hoon Jeong ,  Jong-Oh Lee ,  Jong-Young Lee ,  Sun-Joong Kim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： H04J3/00

CPC分类号： H04W72/1278 ,  H04L45/04 ,  H04W40/00 ,  H04W48/16 ,  H04W72/12 ,  H04W84/18

摘要： Provided is a method for determining superframe to efficiently perform beacon scheduling by allocating superframe lengths which are different according to a routing depth of sensor nodes in a ZigBee based wireless sensor network. The method for determining a superframe for beacon scheduling, includes the steps of: receiving a beacon from a neighboring node and grasping information on a superframe used by the neighboring nodes; and determining a transmission time and a length of own superframe based on superframe information of the grasped neighboring node.

摘要翻译： 提供了一种通过分配根据基于ZigBee的无线传感器网络中的传感器节点的路由深度而不同的超帧长度来确定超帧以有效地执行信标调度的方法。 用于确定信标调度的超帧的方法包括以下步骤：从相邻节点接收信标并且掌握由相邻节点使用的超帧的信息; 并且基于所掌握的相邻节点的超帧信息来确定自身超帧的传输时间和长度。

公开(公告)号：US20120112889A1

公开(公告)日：2012-05-10

申请号：US13383545

申请日：2010-07-23

申请人： Hee Sook Mo ,  Cheng Hao Quan ,  Jae Gak Hwang ,  Cheol Sig Pyo ,  Jong Suk Chae

发明人： Hee Sook Mo ,  Cheng Hao Quan ,  Jae Gak Hwang ,  Cheol Sig Pyo ,  Jong Suk Chae

IPC分类号： G06K7/01

CPC分类号： H04B5/0062 ,  H04B5/0031

摘要： The present invention is enables the high-speed download of a large volume of data stored in a tag memory without a remarkable change in conventional wireless communication techniques. According to one aspect of the present invention, an RFID tag comprises; a transmitting unit for transmitting a download command for instructing the download of tag data stored in a user memory bank of the RFID tag; and a receiving unit for receiving, from the RFID tag, tag data in a plurality of record block units, each of which is smaller than the size of the memory bank.

摘要翻译： 本发明使得能够高速下载存储在标签存储器中的大量数据，而无需传统无线通信技术的显着变化。 根据本发明的一个方面，RFID标签包括： 发送单元，用于发送用于指示下载存储在RFID标签的用户存储体中的标签数据的下载命令; 以及接收单元，用于从RFID标签接收多个记录块单元中的每个都小于存储体大小的标签数据。