公开(公告)号：US20090156158A1

公开(公告)日：2009-06-18

申请号：US12333974

申请日：2008-12-12

Applicant: Hoyong Kang ,  Xiaohua Yu ,  Ji Eun Kim ,  Trung Kien Nguyen ,  Dae Young Yoon ,  Nae Soo Kim ,  Cheol Sig Pyo ,  Seok Kyun Han ,  Sang Gug Lee

Inventor： Hoyong Kang ,  Xiaohua Yu ,  Ji Eun Kim ,  Trung Kien Nguyen ,  Dae Young Yoon ,  Nae Soo Kim ,  Cheol Sig Pyo ,  Seok Kyun Han ,  Sang Gug Lee

IPC: H04B1/16

CPC classification number: H04B1/24 ,  H04W52/0225 ,  Y02D70/166 ,  Y02D70/40

Abstract: A low power super regenerative receiver and a method of reducing the power consumption of the low power super regenerative receiver are provided. The super regenerative receiver includes: an oscillator having a start-up time period starting oscillation that varies according to an existence of an input signal; and a power controller supplying power within the start-up time period of the oscillator.

Abstract translation: 提供了一种低功率超再生接收机和降低低功率超再生接收机的功耗的方法。 超再生接收机包括：振荡器，具有根据输入信号的存在而变化的启动时间段开始振荡; 以及在振荡器的启动时间段内供电的功率控制器。

公开(公告)号：US20090153329A1

公开(公告)日：2009-06-18

申请号：US12251890

申请日：2008-10-15

Applicant: Hyunseok KIM ,  Su Na CHOI ,  Heyung Sub LEE ,  Nak Seon SEONG ,  Cheol Sig PYO ,  Jong-Suk CHAE

Inventor： Hyunseok KIM ,  Su Na CHOI ,  Heyung Sub LEE ,  Nak Seon SEONG ,  Cheol Sig PYO ,  Jong-Suk CHAE

IPC: G08B13/14

CPC classification number: G06K7/0008 ,  G06K7/10108 ,  G06K7/10297 ,  G06K2017/0051 ,  G08B13/2417

Abstract: Disclosed is a method of generating an activation code of a Radio Frequency Identification (RFID) tag including calculating K satisfying a condition that N is set to exceed 2k-1 and to be equal to or less than 2k, when classifying N number of objects through a plurality of RFID tags; and classifying the N number of objects by recording a code corresponding to each of the N number of objects in a K-bit region in an activation code of each RFID tag.

Abstract translation: 公开了一种生成射频识别（RFID）标签的激活码的方法，包括：计算K满足N被设置为超过2k-1并且等于或小于2k的条件，当N个对象通过 多个RFID标签; 并且通过在每个RFID标签的激活码中记录在K位区域中的N个对象中的每一个对应的代码来对N个对象进行分类。

公开(公告)号：US20090146820A1

公开(公告)日：2009-06-11

申请号：US12176757

申请日：2008-07-21

Applicant: Jeong Seok KIM ,  Won Kyu CHOI ,  Gil Young CHOI ,  Cheol Sig PYO ,  Jong-Suk CHAE

Inventor： Jeong Seok KIM ,  Won Kyu CHOI ,  Gil Young CHOI ,  Cheol Sig PYO ,  Jong-Suk CHAE

IPC: G08B13/14 ,  H01Q9/04

CPC classification number: H01Q1/2225 ,  G06K19/07749 ,  G06K19/07752 ,  G06K19/07756 ,  G06K19/07786 ,  G08B13/2431 ,  H01Q1/38 ,  H01Q9/045

Abstract: An RFID tag attached to an object and transmitting a signal that corresponds to identification information includes an RFID tag chip that modulates the signal according to the identification information and an RFID tag antenna that transmits the modulated signal. The RFID tag antenna includes a dielectric material, a radiating patch, and a slit. The dielectric material has a polyhedral shape and includes a first surface that contacts the object and a second surface that is parallel with the first surface, the radiating patch is formed on at least a part of the second surface and radiates electromagnetic to waves, and the slit is formed on at least a part of the radiating patch to expose the dielectric material.

Abstract translation: 附加到对象并发送与识别信息相对应的信号的RFID标签包括根据识别信息调制信号的RFID标签芯片和发送调制信号的RFID标签天线。 RFID标签天线包括介电材料，辐射贴片和狭缝。 介电材料具有多面体形状，并且包括与物体接触的第一表面和与第一表面平行的第二表面，辐射贴片形成在第二表面的至少一部分上并且辐射电磁波，并且 狭缝形成在辐射贴片的至少一部分上以暴露电介质材料。

公开(公告)号：US20090103564A1

公开(公告)日：2009-04-23

申请号：US12149519

申请日：2008-05-02

Applicant: Kyeseon Lee ,  Se Han Kim ,  Chong-Ho Yoon ,  Gang-Ho Byun ,  Nae-Soo Kim ,  Cheol Sig Pyo

Inventor： Kyeseon Lee ,  Se Han Kim ,  Chong-Ho Yoon ,  Gang-Ho Byun ,  Nae-Soo Kim ,  Cheol Sig Pyo

IPC: H04J3/22

CPC classification number: H04W74/0808 ,  H04W52/0225 ,  H04W84/18 ,  Y02D70/166

Abstract: Provided are a method and apparatus for controlling media access in a sensor network and a method of managing traffic information. Since traffic information is exchanged between nodes and data is transmitted by using a dynamic long preamble according to receiver nodes, data transmission efficiency can be improved, energy consumed to transmit the long preamble can be reduced, and data transmission delay can be reduced as well.

Abstract translation: 提供了一种用于控制传感器网络中的媒体访问的方法和装置以及管理交通信息的方法。 由于在节点之间交换信息，所以通过使用根据接收器节点的动态长前导码来发送数据，因此可以提高数据传输效率，可以减少传输长前同步码消耗的能量，并且还可以减少数据传输延迟。

公开(公告)号：US20090103437A1

公开(公告)日：2009-04-23

申请号：US12149255

申请日：2008-04-29

Applicant: Se Han Kim ,  Kyeseon Lee ,  Chong-Ho Yoon ,  Gang-Ho Byun ,  Nae-Soo Kim ,  Cheol Sig Pyo

Inventor： Se Han Kim ,  Kyeseon Lee ,  Chong-Ho Yoon ,  Gang-Ho Byun ,  Nae-Soo Kim ,  Cheol Sig Pyo

IPC: G01R31/08

CPC classification number: H04W74/0808 ,  H04L7/041 ,  H04W52/0216 ,  H04W74/002 ,  Y02D70/166

Abstract: Provided is a method of transmitting/receiving data in a sensor node for reducing overhearing of sensor nodes, and a sensor network which implements the method. A sender node having transmission data from among a plurality of nodes which perform a low power listening (LPL) operation in an asynchronous manner at predetermined time intervals, generates a long preamble including short preambles, each having information including a destination address of the transmission data, a remainder of the long preamble, and a length of the transmission data, and sequentially transmits the second preamble and the transmission data. A receiver node from among the plurality of nodes determines whether a valid signal is sensed during an active state in the LPL operation. If it is determined that the valid signal is sensed, the receiver node receives the short preamble transmitted from the sender node. The receiver node determines a duration time of a deactivated state of the receiver node based on the received first preamble, thereby reducing overhearing in the sensor network.

Abstract translation: 提供了一种在传感器节点中发送/接收数据以减少传感器节点的窃听的方法，以及实现该方法的传感器网络。 具有以预定时间间隔以异步方式执行低功率监听（LPL）操作的多个节点的发送数据的发送方节点生成包括短前导码的长前导码，每个具有包含发送数据的目的地地址的信息 ，长前导码的剩余部分和发送数据的长度，并顺序发送第二前同步码和发送数据。 多个节点中的接收器节点确定在LPL操作中的活动状态期间是否感测到有效信号。 如果确定感测到有效信号，则接收器节点接收从发送器节点发送的短前置码。 接收机节点基于接收到的第一前导码来确定接收机节点的去激活状态的持续时间，从而减少传感器网络中的窃听。

公开(公告)号：US20090085809A1

公开(公告)日：2009-04-02

申请号：US12135993

申请日：2008-06-09

Applicant: Won Kyu CHOI ,  Jeong Seok KIM ,  Gil Young CHOI ,  Cheol Sig PYO

Inventor： Won Kyu CHOI ,  Jeong Seok KIM ,  Gil Young CHOI ,  Cheol Sig PYO

IPC: H01Q9/04 ,  G08B13/14

CPC classification number: G06K19/07749 ,  G06K19/07786 ,  H01Q1/2208 ,  H01Q1/38 ,  H01Q7/00

Abstract: An antenna includes a polyhedral dielectric material, a feed loop, a polygonal radiating patch, and shorting plates. The feed loop is electrically connected with a radio frequency identification (RFID) tag chip for supplying power to the RFID tag chip. The polygonal radiating patch is magnetically coupled with the feed loop for radiating the electromagnetic waves. Each of the shorting plates disconnects the radiating patch and a ground surface and controls the magnetic coupling of the radiating patch and the feed loop. Accordingly, an RFID tag that can be attached to a metal material is provided.

Abstract translation: 天线包括多面体电介质材料，馈电环路，多边形辐射贴片和短路板。 馈电回路与用于向RFID标签芯片供电的射频识别（RFID）标签芯片电连接。 多边形辐射贴片与馈电环磁耦合以辐射电磁波。 每个短路板断开散热片和地面，并控制辐射片和馈电环的磁耦合。 因此，可以提供可附接到金属材料的RFID标签。

公开(公告)号：US20090016305A1

公开(公告)日：2009-01-15

申请号：US12169375

申请日：2008-07-08

Applicant: Jongyoung LEE ,  Sun-Joong KIM ,  Cheol-Sig PYO ,  Jong-Suk CHAE

Inventor： Jongyoung LEE ,  Sun-Joong KIM ,  Cheol-Sig PYO ,  Jong-Suk CHAE

IPC: H04J3/00 ,  H04L12/43 ,  H04Q7/24

CPC classification number: H04W72/0426 ,  H04W24/00 ,  H04W48/08 ,  H04W48/16

Abstract: There is provided to a method for avoiding indirect collision of beacon, including: collecting beacon information of neighboring nodes and allocating a time slot based on the collected beacon information; transmitting information on the allocated time slot to the neighboring nodes depending on time slots of the neighboring nodes; and checking whether the time slot overlaps based on a reply message from the neighboring nodes and reallocating a time slot upon occurrence of overlapping.

Abstract translation: 提供了一种用于避免信标的间接冲突的方法，包括：收集相邻节点的信标信息并基于收集的信标信息分配时隙; 根据相邻节点的时隙向相邻节点发送关于所分配的时隙的信息; 并且基于来自相邻节点的回复消息来检查时隙是否重叠，并且在发生重叠时重新分配时隙。

公开(公告)号：US20080291089A1

公开(公告)日：2008-11-27

申请号：US12096777

申请日：2006-12-08

Applicant: Nak-Seon Seong ,  Choon-Sik Lim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

Inventor： Nak-Seon Seong ,  Choon-Sik Lim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC: G01S1/02

CPC classification number: G01S5/06 ,  G01S5/14 ,  H04W64/00

Abstract: Provided is an apparatus and method for computing the location of a radio beacon by using Time Difference Of Arrival (TDOA) and multiple frequencies. The apparatus and method of the present invention compute the location of a radio beacon without limitation in distance by using multiple frequencies and time difference of arrival to resolve the problem of phase ambiguity. A radio beacon location computing system includes a plurality of base stations configured to receive signals of multiple frequencies transmitted from the radio beacon, and detect and output phase differences and arrival time; and a location computing server configured to receive the phase differences and the arrival time outputted from the respective base stations, acquire calculation distances based on the phase differences, remove phase ambiguity from the calculation distances based on the arrival time, and compute the location of the radio beacon.

Abstract translation: 提供了一种通过使用到达时差（TDOA）和多个频率来计算无线电信标的位置的装置和方法。 本发明的装置和方法通过使用多个频率和到达时间差来计算无线电信标的位置，而不限于距离，以解决相位模糊问题。 无线电信标位置计算系统包括多个基站，被配置为接收从无线电信标发送的多个频率的信号，并且检测和输出相位差和到达时间; 以及位置计算服务器，被配置为接收从各个基站输出的相位差和到达时间，基于相位差获取计算距离，基于到达时间从计算距离中消除相位模糊度，并且计算 无线电信标。

公开(公告)号：US20080136708A1

公开(公告)日：2008-06-12

申请号：US11932968

申请日：2007-10-31

Applicant: Se Han Kim ,  Ji Eun Kim ,  Nae Soo Kim ,  Cheol Sig Pyo

Inventor： Se Han Kim ,  Ji Eun Kim ,  Nae Soo Kim ,  Cheol Sig Pyo

IPC: H04B7/00 ,  H04L12/56

CPC classification number: H04W52/16 ,  H04W52/325 ,  H04W74/08 ,  H04W84/18

Abstract: A Ubiquitous Sensor Network (USN) system using multi-channel having differential radio power and a method of configuring the USN system are provided. The USN system and the method include a sink node performing a communication with a sensor node using at least one or more frequency signal having differential outputs; and a sensor node performing the communication with the sink node using the at least one or more frequency signal. The USN system and the method simultaneously use a control frequency signal having a high output power and a data frequency signal having an output power lower than that of the control frequency signal, thereby reducing a beacon transmission delay, enabling time synchronization between the sensor nodes, and preventing collisions between beacons due to beacon relays among the sensor nodes, so as to configure a more efficient sensor field.

Abstract translation: 提供了使用具有差分无线电功率的多信道的无处不在的传感器网络（USN）系统和配置USN系统的方法。 USN系统和方法包括使用具有差分输出的至少一个或多个频率信号执行与传感器节点的通信的汇聚节点; 以及传感器节点，使用所述至少一个或多个频率信号来执行与所述汇聚节点的通信。 USN系统和该方法同时使用具有高输出功率的控制频率信号和具有低于控制频率信号的输出功率的输出功率的数据频率信号，从而减少信标传输延迟，从而实现传感器节点之间的时间同步， 并且防止由于传感器节点之间的信标中继引起的信标之间的冲突，以便配置更有效的传感器场。

公开(公告)号：US20080136675A1

公开(公告)日：2008-06-12

申请号：US11776161

申请日：2007-07-11

Applicant: Jin Kyeong KIM ,  Nae-Soo Kim ,  Cheol Sig Pyo

Inventor： Jin Kyeong KIM ,  Nae-Soo Kim ,  Cheol Sig Pyo

IPC: G08G1/056

CPC classification number: G08G1/161 ,  G08G1/056

Abstract: An apparatus allocates a channel used for inter-vehicle communications according to a traveling direction. The apparatus includes a traveling direction determiner for determining whether or not a traveling direction of a vehicle is changed; and a channel allocator for allocating the vehicle a previously allocated channel or a new channel based on a determined result of the traveling direction determiner. Further, a method allocates a channel used for inter-vehicle communications according to a traveling direction. The method includes the steps of determining whether or not a traveling direction of a vehicle is changed; and allocating the vehicle a previously allocated channel or a new channel based on a determined result in the above step.

Abstract translation: 一种装置根据行驶方向分配用于车辆间通信的信道。 该装置包括用于确定车辆的行进方向是否改变的行进方向确定器; 以及信道分配器，用于基于行进方向确定器的确定结果来分配车辆先前分配的信道或新信道。 此外，方法根据行驶方向分配用于车辆间通信的信道。 该方法包括以下步骤：确定车辆行驶方向是否改变; 以及在上述步骤中基于所确定的结果来分配车辆先前分配的信道或新信道。