公开(公告)号：US20100271185A1

公开(公告)日：2010-10-28

申请号：US12742715

申请日：2008-07-11

申请人： Huan Zhou ,  Hongai Jiao ,  Jian Zhang

发明人： Huan Zhou ,  Hongai Jiao ,  Jian Zhang

IPC分类号： H04Q5/22

CPC分类号： G06K7/0008 ,  G06K7/10029 ,  G06K7/10049

摘要： A binary tree method for avoiding collision of multiple tags, comprising: during inventorying tags, a reader sending a re-splitting instruction to the tags and entering a next time slot for reception if the reader does not receive any reply information from the tags in a specified time slot and one of the following conditions is satisfied: the reader received incorrect reply information from the tags in the former time slot, or a re-splitting instruction was sent in the former time slot; and when the tags receive the re-splitting instruction, for tags whose counter values are not 1, the counter values remaining unchanged, and tags whose counter values are 1 splitting into two subsets 0 and 1, and those counter-0 tags replying to the reader. With the present invention, the inventorying flow of Binary Tree is optimized, the inventorying efficiency is improved, and the whole flow becomes more reasonable.

摘要翻译： 一种用于避免多个标签的冲突的二叉树方法，包括：在清点标签期间，如果读取器没有从标签中接收到任何回复信息，则读者向标签发送重新分割指令并输入下一个时隙用于接收 指定的时隙和满足以下条件之一：读卡器从前一时隙的标签接收到不正确的应答信息，或者在前一时隙发送重新分割指令; 并且当标签接收到重新分割指令时，对于其计数器值不为1的标签，计数器值保持不变，其计数器值为1的标签分为两个子集0和1，以及回复到 读者。 利用本发明，优化了二叉树的库存流程，提高了库存效率，整个流程变得更加合理。

公开(公告)号：US07612672B2

公开(公告)日：2009-11-03

申请号：US11641839

申请日：2006-12-20

申请人： Ji Hwan Choi ,  Hyuckjae Lee ,  Dongwook Lee ,  Hyunseok Lee ,  Youngwoo Youn ,  Jungeun Kim

发明人： Ji Hwan Choi ,  Hyuckjae Lee ,  Dongwook Lee ,  Hyunseok Lee ,  Youngwoo Youn ,  Jungeun Kim

IPC分类号： G08B13/14

CPC分类号： G06K7/0008 ,  G06K7/10049

摘要： A query tree based tag identification method in RFID systems includes: (a) forming a temporary ID for each of the tags; (b) comparing an inquiry of the reader with a portion of the temporary ID in each tag when receiving the inquiry from the reader; (c) if the inquiry and the portion of the temporary ID are identical to each other, transmitting a remainder of the temporary ID in each tag to the reader; (d) if a collision occurs in the step (c), generating new inquiries for storing them in the reader; (e) if there is no collision in the step (c), transmitting an ACK signal to each tag whose temporary ID is identified to receive its real tag ID therefrom; and (f) repeating the steps (b) to (e) until there is no inquiry in the reader.

摘要翻译： RFID系统中基于查询树的标签识别方法包括：（a）形成每个标签的临时ID; （b）当接收来自读者的询问时，将读者的查询与​​每个标签中的临时ID的一部分进行比较; （c）如果查询和临时ID的部分相同，则将每个标签中的临时ID的剩余部分发送给读者; （d）如果在步骤（c）中发生碰撞，产生新的查询以将其存储在读者中; （e）如果在步骤（c）中没有冲突，则将ACK信号发送到每个标签，该标签的临时ID被识别以从其接收其真实标签ID; 和（f）重复步骤（b）至（e），直到读者没有询问。

公开(公告)号：US20070222561A1

公开(公告)日：2007-09-27

申请号：US11702953

申请日：2007-02-05

申请人： Robert Hulvey

发明人： Robert Hulvey

IPC分类号： H04Q5/22

CPC分类号： G06K7/10049 ,  G06K7/0008 ,  G06K19/0723

摘要： Systems and methods for efficiently querying and identifying multiple items on a communication channel are disclosed. The invention is well suited to use with radio frequency identification with interrogation devices and systems that identify radio frequency identification transponders. A depth-first tree traversal protocol algorithm, including commands and symbols, is used to more efficiently interrogate a plurality of transponders in a short amount of time.

摘要翻译： 公开了用于有效地查询和识别通信信道上的多个项目的系统和方法。 本发明非常适合用于识别射频识别转发器的询问设备和系统的射频识别。 使用深度优先的树遍历协议算法（包括命令和符号）来在短时间内更有效地询问多个转发器。

公开(公告)号：US20070200677A1

公开(公告)日：2007-08-30

申请号：US11504591

申请日：2006-08-16

申请人： Tomomitsu Murano

发明人： Tomomitsu Murano

IPC分类号： H04Q5/22 ,  G08B13/14

CPC分类号： G06K7/0008 ,  G06K7/10049

摘要： There is provided an interrogator, transponder, and transponder identification method, which shorten processing time for identification. An interrogator that makes wireless communication with a transponder, comprising: a temporary number specify section that transmits a request for transmission of a unit bit string as a bit string having a predetermined length in a bit string expressing a temporary number owned by the transponder, receives a unit bit sting transmitted from the transponder in response to the request, and specifies the temporary number of the transponder, based on the unit bit string; and an identification information obtaining section that transmits, if a temporary number of a transponder is specified by the temporary number specify section, a request for transmission of identification information of the transponder to the transponder, and receives the identification information transmitted from the transponder, in response to the request.

摘要翻译： 提供了一种询问器，应答器和应答器识别方法，缩短了识别处理时间。 一种与应答器进行无线通信的询问器，包括：临时号码指定部分，发送单元位串的发送请求作为表示所述应答器所拥有的临时号码的位串中的具有预定长度的位串，接收 响应于该请求从应答器发送的单元比特，并基于单位比特串指定应答器的临时号码; 以及识别信息获取部，如果临时号码指定部指定了应答器的临时号码，则发送应答器的识别信息的请求发送到应答器，并且接收从应答器发送的识别信息， 响应请求。

公开(公告)号：US07075452B2

公开(公告)日：2006-07-11

申请号：US10233520

申请日：2002-09-04

申请人： Gérard Robert

发明人： Gérard Robert

IPC分类号： H02J13/00

CPC分类号： G06K7/10049 ,  G06K7/0008

摘要： The invention concerns a method for reading a set of electronic labels, each comprising a distinct identification code of N bits and situated in the electromagnetic field of an interrogator device, characterized in that it comprises the following steps: a) for each given code of N bits, defining an elementary analysis block comprising m bits, where m is a sub-unit of N, b) analyzing the code of each label by scrolling through this code, block of m bits by block of m bits, c) and, for a given label, generating a serial number representing the number of labels identified before this label in such a way that the interrogator knows at any moment the number of labels present in the electromagnetic field, d) establishing a cross reference table between the serial numbers generated and the values of the identification codes of each label.

摘要翻译： 本发明涉及一种用于读取一组电子标签的方法，每个电子标签包括N位的不同识别码并且位于询问器装置的电磁场中，其特征在于包括以下步骤：a）对于每个给定的N码 位，定义包括m位的基本分析块，其中m是N的子单元，b）通过滚动该代码来分析每个标签的代码，m位的块，m位的块，c）和 一个给定的标签，产生一个代表在该标签之前识别的标签数量的序列号，使得询问器随时知道电磁场中存在的标签的数量，d）在所生成的序列号之间建立交叉参考表 以及每个标签的识别码的值。

公开(公告)号：US20050237158A1

公开(公告)日：2005-10-27

申请号：US11090961

申请日：2005-03-25

申请人： Scott Cooper ,  Kurt Sundstrom ,  Aanand Esterberg ,  Christopher Diorio ,  Vincent Moretti ,  Todd Humes

发明人： Scott Cooper ,  Kurt Sundstrom ,  Aanand Esterberg ,  Christopher Diorio ,  Vincent Moretti ,  Todd Humes

IPC分类号： G06K7/00 ,  H04Q5/22

CPC分类号： G06K7/10049 ,  G06K7/0008

摘要： A process is disclosed for communicating with individual tags in a population of tags having a binary tree organization, wherein each tag corresponds to a leaf node of the binary tree. The process includes singulating a predetermined leaf node and returning to a designated re-entry node associated with the predetermined leaf node after singulating.

摘要翻译： 公开了一种与具有二叉树组织的标签群体中的各个标签通信的过程，其中每个标签对应于二叉树的叶节点。 该过程包括在分割之后，分割预定的叶节点并返回到与预定叶节点相关联的指定重入节点。

公开(公告)号：US20050237157A1

公开(公告)日：2005-10-27

申请号：US11090899

申请日：2005-03-25

申请人： Scott Cooper ,  Kurt Sundstrom ,  Aanand Esterberg ,  Christopher Diorio ,  Vincent Moretti

发明人： Scott Cooper ,  Kurt Sundstrom ,  Aanand Esterberg ,  Christopher Diorio ,  Vincent Moretti

IPC分类号： G06K7/00 ,  H04Q5/22

CPC分类号： G06K7/10049 ,  G06K7/0008

摘要： A radio frequency identification tag is disclosed that is configured to transmit a signal modulated with one of more than two different subcarrier modulation frequencies such that the signal represents more than one binary bit as a single symbol.

摘要翻译： 公开了一种射频识别标签，其被配置为发送用多于两个不同子载波调制频率之一调制的信号，使得信号表示多于一个二进制位作为单个符号。

公开(公告)号：US20050128130A1

公开(公告)日：2005-06-16

申请号：US10503257

申请日：2003-01-15

申请人： Ulrich Friedrich

发明人： Ulrich Friedrich

IPC分类号： G06K7/00 ,  G01S13/74

CPC分类号： G06K7/10049 ,  G06K7/0008

摘要： Known methods for the selection of transponders require a large time duration, because in this context the data transmitted according to the half-duplex principle. With the new method, the transponders can be identified with a small time expenditure through the transmission of the time duration of a reference interval, because the data are transmitted in the full-duplex principle.

摘要翻译： 用于选择转发器的已知方法需要大的持续时间，因为在这种情况下，根据半双工原理传输数据。 采用这种新方法，由于数据以全双工原理传输，因此通过发送参考间隔的持续时间可以以较小的时间支出识别应答器。

公开(公告)号：US20050083178A1

公开(公告)日：2005-04-21

申请号：US10969433

申请日：2004-10-19

申请人： Ulrich Friedrich

发明人： Ulrich Friedrich

IPC分类号： G06K7/00 ,  H04Q5/22

CPC分类号： G06K7/10049 ,  G06K7/0008

摘要： In a method for selecting, by a base station, one or more transponders out of a plurality of transponders, selection steps are performed at least at two selection levels or stages. The base station controls all selection steps at the first and second level. The first selection level includes: each transponder generates a random transponder number, the base station generates numbered time slots, each transponder transmits a marker if and when its random transponder number coincides with a time slot number. When a single transponder random number coincides with a time slot number the respective transponder is selected by the base station. If more than one transponder random numbers coincide with a time slot number the second selection procedure is performed at a second selection level as a stochastic or a deterministic or a mixed stochastic-deterministic selection procedure.

摘要翻译： 在由基站选择多个应答器中的一个或多个转发器的方法中，至少在两个选择级别或阶段执行选择步骤。 基站控制第一和第二级的所有选择步骤。 第一选择级别包括：每个应答器产生随机转发器号码，基站产生编号的时隙，每个应答器在其随机转发器号与时隙号一致的情况下发送标记。 当单个转发器随机数与时隙号一致时，基站选择相应的应答器。 如果多于一个应答器随机数与时隙号一致，则以第二选择级别作为随机或确定性或混合随机确定性选择过程执行第二选择过程。

公开(公告)号：US20050024186A1

公开(公告)日：2005-02-03

申请号：US10903721

申请日：2004-07-30

申请人： Ulrich Friedrich

发明人： Ulrich Friedrich

IPC分类号： G01S13/78 ,  G06F7/04 ,  G06K7/00 ,  G06K17/00 ,  G07C9/00 ,  H04Q5/22

CPC分类号： G06K7/10049 ,  G06K7/0008 ,  G06K17/00

摘要： One or more transponders are selected by a base station out of a plurality of transponders. For this purpose an identification bit sequence (IB) that is or includes a random number bit sequence (ZB) is made available in the respective transponder and the base station transmits in a bit-by-bit fashion a selection bit sequence (AB) to the transponders. These sequences (IB or ZB) and (AB) are compared bit-by-bit in the respective transponder. The comparing is performed by way of a predeterminable comparing criterion to provide a comparing result in the form of a selection bit to which a bit value is assigned. The selection is then made depending on the bit value of the selection bit of the respective transponder.

摘要翻译： 一个或多个转发器由多个应答器中的基站选择。 为此，在相应的转发器中使得是或包括随机数位序列（ZB）的识别比特序列（IB）可用，并且基站以逐位的方式将选择比特序列（AB）发送到 转发器。 这些序列（IB或ZB）和（AB）在相应的转发器中被逐比地比较。 通过可预测的比较标准来执行比较，以比较值分配的选择位的形式提供比较结果。 然后根据相应应答器的选择位的位值进行选择。