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1. 发明申请

US20060158312A1 Anti-collision method and system using optimized binary search tree 失效
标题翻译：防碰撞方法和系统采用优化二叉搜索树
公开(公告)号：US20060158312A1
公开(公告)日：2006-07-20
申请号：US11316711
申请日：2005-12-27
申请人： Kyung-ho Park , Woo-shik Kang , Young-hwan Jung , Sun-shin An , Seon-wook Kim
发明人： Kyung-ho Park , Woo-shik Kang , Young-hwan Jung , Sun-shin An , Seon-wook Kim
IPC分类号： H04Q5/22
CPC分类号： G06K7/0008 , G06K7/10049
摘要： Method for rapidly detecting identifier (ID) of tags, by radio frequency identification (RFID) reader in communication system that includes RFID reader and at least two tags communicating with RFID reader, is provided. RFID reader generates a prefix when IDs contained in at least two messages received collide with each other, prefix including a first colliding bit, which is set to ‘0’ or ‘1’, from high-order bits and non-colliding high-order bits. RFID reader sends a first message containing information that requests transmission of an assigned ID in a preset transmission period when the bits of the generated prefix match bits corresponding to the prefix, in the assigned ID. Tags receive a first message that contains a prefix including at least one bit, and sends a second message containing an assigned ID during a preset transmission period when the bits of the prefix match bits corresponding to the prefix, in assigned ID.
摘要翻译：提供了一种通过射频识别（RFID）阅读器快速检测标签的标识符（ID）的方法，该通信系统包括RFID读取器和至少两个与RFID读取器通信的标签。当RFID包含在接收到的至少两个消息中的ID彼此冲突时，RFID读取器产生前缀，该前缀包括从高阶比特设置为“0”或“1”的第一冲突比特，并且不相关的高阶位。在所分配的ID中，当所生成的前缀的比特与前缀相对应的比特匹配时，RFID读取器发送包含请求在预设的传输周期中发送分配的ID的信息的第一消息。标签接收包含至少一个比特的前缀的第一个消息，并且在分配的ID中，当前缀的比特与前缀相对应的比特匹配时，在预设的传输周期期间发送包含分配的ID的第二消息。

2. 发明授权

US07741955B2 Anti-collision method and system using optimized binary search tree 失效
标题翻译：防碰撞方法和系统采用优化二叉搜索树
公开(公告)号：US07741955B2
公开(公告)日：2010-06-22
申请号：US11316711
申请日：2005-12-27
申请人： Kyung-ho Park , Woo-shik Kang , Young-hwan Jung , Sun-shin An , Seon-wook Kim
发明人： Kyung-ho Park , Woo-shik Kang , Young-hwan Jung , Sun-shin An , Seon-wook Kim
IPC分类号： H04Q5/22
CPC分类号： G06K7/0008 , G06K7/10049
摘要： Method for rapidly detecting identifier (ID) of tags, by radio frequency identification (RFID) reader in communication system that includes RFID reader and at least two tags communicating with RFID reader, is provided. RFID reader generates a prefix when IDs contained in at least two messages received collide with each other, prefix including a first colliding bit, which is set to ‘0’ or ‘1’, from high-order bits and non-colliding high-order bits. RFID reader sends a first message containing information that requests transmission of an assigned ID in a preset transmission period when the bits of the generated prefix match bits corresponding to the prefix, in the assigned ID. Tags receive a first message that contains a prefix including at least one bit, and sends a second message containing an assigned ID during a preset transmission period when the bits of the prefix match bits corresponding to the prefix, in assigned ID.
摘要翻译：提供了一种通过射频识别（RFID）阅读器快速检测标签的标识符（ID）的方法，该通信系统包括RFID读取器和至少两个与RFID读取器通信的标签。当RFID包含在接收到的至少两个消息中的ID彼此冲突时，RFID读取器产生前缀，该前缀包括从高阶比特设置为“0”或“1”的第一冲突比特，并且不相关的高阶位。在所分配的ID中，当所生成的前缀的比特与前缀相对应的比特匹配时，RFID读取器发送包含请求在预设的传输周期中发送分配的ID的信息的第一消息。标签接收包含至少一个比特的前缀的第一个消息，并且在分配的ID中，当前缀的比特与前缀相对应的比特匹配时，在预设的传输周期期间发送包含分配的ID的第二消息。

3. 发明申请

US20070120648A1 Method and apparatus for detecting end of response signal on radio frequency identification tag 有权
标题翻译：用于检测射频识别标签上的响应信号结束的方法和装置
公开(公告)号：US20070120648A1
公开(公告)日：2007-05-31
申请号：US11522965
申请日：2006-09-19
申请人： Ji-hun Koo , Woo-shik Kang , Jin-young Yang , Seon-wook Kim , Seok-joong Hwang
发明人： Ji-hun Koo , Woo-shik Kang , Jin-young Yang , Seon-wook Kim , Seok-joong Hwang
IPC分类号： H04Q5/22
CPC分类号： H04B5/0062 , G06K7/10297
摘要： When a reader of a Radio Frequency Identification (RF-ID) system sends out a command signal to the RF-ID tag and receives a response signal from the RF-ID tag, an End of Signal (EOS) of the received response signal is detected such that the next command signal can be transmitted within a time. Accordingly, response signal can be detected even under the environment of poor signal to noise ratio performance, and the EOS of the response signal from the RF-ID tag can be recognized with ease and speed.
摘要翻译：当射频识别（RF-ID）系统的读取器向RF-ID标签发出命令信号并从RF-ID标签接收到响应信号时，所接收的响应信号的信号结束（EOS）为检测到下一个命令信号可以在一段时间内传输。因此，即使在差的信噪比性能的环境下也能够检测到响应信号，并且可以容易且快速地识别来自RF-ID标签的响应信号的EOS。

4. 发明授权

US07728714B2 Method and apparatus for detecting end of response signal on radio frequency identification tag 有权
标题翻译：用于检测射频识别标签上的响应信号结束的方法和装置
公开(公告)号：US07728714B2
公开(公告)日：2010-06-01
申请号：US11522965
申请日：2006-09-19
申请人： Ji-hun Koo , Woo-shik Kang , Jin-young Yang , Seon-wook Kim , Seok-joong Hwang
发明人： Ji-hun Koo , Woo-shik Kang , Jin-young Yang , Seon-wook Kim , Seok-joong Hwang
IPC分类号： H04Q5/22
CPC分类号： H04B5/0062 , G06K7/10297
摘要： When a reader of a Radio Frequency Identification (RF-ID) system sends out a command signal to the RF-ID tag and receives a response signal from the RF-ID tag, an End of Signal (EOS) of the received response signal is detected such that the next command signal can be transmitted within a time. Accordingly, response signal can be detected even under the environment of poor signal to noise ratio performance, and the EOS of the response signal from the RF-ID tag can be recognized with ease and speed.
摘要翻译：当射频识别（RF-ID）系统的读取器向RF-ID标签发出命令信号并从RF-ID标签接收到响应信号时，所接收的响应信号的信号结束（EOS）为检测到下一个命令信号可以在一段时间内传输。因此，即使在差的信噪比性能的环境下也能够检测到响应信号，并且可以容易且快速地识别来自RF-ID标签的响应信号的EOS。

5. 发明申请

US20060255917A1 System for protecting tag related information and method thereof 审中-公开
标题翻译：用于保护标签相关信息的系统及其方法
公开(公告)号：US20060255917A1
公开(公告)日：2006-11-16
申请号：US11431041
申请日：2006-05-10
申请人： Kyung-ho Park , Woo-shik Kang , Hyung-min Yoon
发明人： Kyung-ho Park , Woo-shik Kang , Hyung-min Yoon
IPC分类号： H04Q5/22
CPC分类号： G06K7/0008
摘要： A system for protecting signal emitting tag related information and a method thereof are provided. The method of protecting the signal emitting tag related information includes operations of receiving a request for the signal emitting tag related information, which is information related to a the signal emitting tag, and providing the requested signal emitting tag related information after authenticating the request. Therefore, a non-permitted user can be prevented from reading the signal emitting tag related information so that the signal emitting tag related information can be protected.
摘要翻译：提供了一种用于保护信号发射标签相关信息的系统及其方法。保护信号发布标签相关信息的方法包括接收对与信号发射标签相关的信息的信号发布标签相关信息的请求的操作，以及在认证请求之后提供所请求的发送标签相关信息的信号。因此，可以防止非允许用户读取信号发布标签相关信息，从而可以保护信号发布标签相关信息。

6. 发明申请

US20060202803A1 Portable device for caching RFID tag and method thereof 有权
标题翻译：用于缓存RFID标签的便携式设备及其方法
公开(公告)号：US20060202803A1
公开(公告)日：2006-09-14
申请号：US11374186
申请日：2006-03-14
申请人： Hyung-min Yoon , Kyung-ho Park , Woo-shik Kang
发明人： Hyung-min Yoon , Kyung-ho Park , Woo-shik Kang
IPC分类号： H04Q5/22
CPC分类号： G06K7/0008
摘要： A portable device includes an RFID reader for detecting a tag information of an RFID tag, a memory for storing the tag information detected by the RFID reader, and a controller. When a read command for the RFID tag is input and the tag information is valid, the controller controls the RFID reader to retrieve the tag information of the memory. If the tag information is invalid, the controller controls the RFID reader to re-read the RFID tag. The controller can determine whether the tag information is valid using the time and location. Because unnecessary operation can be omitted to read tags, power consumption is reduced and tag information check time is shortened.
摘要翻译：便携式设备包括用于检测RFID标签的标签信息的RFID读取器，用于存储由RFID读取器检测到的标签信息的存储器和控制器。当输入RFID标签的读取命令并且标签信息有效时，控制器控制RFID读取器来检索存储器的标签信息。如果标签信息无效，则控制器控制RFID读取器重新读取RFID标签。控制器可以使用时间和位置确定标签信息是否有效。由于读取标签可以省略不必要的操作，因此功耗降低，标签信息检查时间缩短。

7. 发明授权

US08203449B2 RF-ID tag reading system for using password and method thereof 有权
标题翻译： RF-ID标签读取系统，用于使用密码及其方法
公开(公告)号：US08203449B2
公开(公告)日：2012-06-19
申请号：US11791081
申请日：2006-03-30
申请人： Kyung-ho Park , Woo-shik Kang , Jin-young Yang , Hyung-min Yoon
发明人： Kyung-ho Park , Woo-shik Kang , Jin-young Yang , Hyung-min Yoon
IPC分类号： G08B13/14
CPC分类号： G06F21/35 , G06F21/77 , G06F21/79
摘要： Provided is a RFID tag with enhanced security. The tag includes a tag memory to store thereto pre-determined password information and tag data, an antenna to receive a tag data transmission request signal from an outer reader, and a tag controller to request the reader to transmit the password if the tag data transmission request signal is received, and then to transmit the tag data if the password received from the reader is identical with the pre-determined password. Accordingly, it can be prevented for a third-party, who does not know the password, to check the tag data.
摘要翻译：提供了增强安全性的RFID标签。该标签包括：标签存储器，用于存储预定的密码信息和标签数据;天线，用于从外部读取器接收标签数据发送请求信号;以及标签控制器，用于请求读取器发送密码，如果标签数据传输接收到请求信号，然后如果从阅读器接收的密码与预先确定的密码相同，则发送标签数据。因此，可以防止不知道密码的第三方检查标签数据。

8. 发明授权

US07660860B2 Method for discovery reply packet transmission in communication network 失效
标题翻译：在通信网络中发现应答分组传输的方法
公开(公告)号：US07660860B2
公开(公告)日：2010-02-09
申请号：US11271877
申请日：2005-11-14
申请人： Hyung-min Yoon , Tack-don Han , Beom-seok Kang , Kyung-ho Park , Woo-shik Kang
发明人： Hyung-min Yoon , Tack-don Han , Beom-seok Kang , Kyung-ho Park , Woo-shik Kang
IPC分类号： G06F15/16 , H04B7/212 , H04L12/54 , H04Q7/00
CPC分类号： H04L67/325 , H04L67/12 , H04L69/28 , H04L69/329
摘要： A method for determining a transmission time of collected context information at a sensor node in a communication system that includes a client, at least one sensor node collecting context information, and an access point (AP) forwarding the context information received from the sensor node to the client. The communication system operates in a session layer of protocol layers of open systems interconnection (OSI). The sensor node calculates a transmission period in which the collected context information is transmitted, and randomly determines a transmission time at which the context information is transmitted within the calculated transmission period. Since the collected context information is transmitted at the transmission time randomly determined by the sensor node, the load on the AP can be balanced.
摘要翻译：一种用于确定在包括客户机的通信系统中的传感器节点处收集的上下文信息的传输时间的方法，至少一个收集上下文信息的传感器节点和将从传感器节点接收的上下文信息转发到的接入点（AP）客户端。通信系统在开放系统互连（OSI）的协议层的会话层中操作。传感器节点计算发送收集的上下文信息的发送周期，并且在计算的发送周期内随机地确定发送上下文信息的发送时间。由于收集的上下文信息是在由传感器节点随机确定的传输时间发送的，所以可以平衡AP上的负载。

9. 发明申请

US20080001719A1 Data recovery method and apparatus for radio frequency identification 失效
标题翻译：数据恢复方法及射频识别装置
公开(公告)号：US20080001719A1
公开(公告)日：2008-01-03
申请号：US11585982
申请日：2006-10-25
申请人： Ji-hun Koo , Woo-shik Kang , Kyung-ho Park
发明人： Ji-hun Koo , Woo-shik Kang , Kyung-ho Park
IPC分类号： H04Q5/22
CPC分类号： G06K7/0008
摘要： Provided are an RFID reader and a data recovery method which selectively selects only an integrity-checked phase signal, when receiving a backscattered signal of an RFID tag through an I signal path or a Q signal path, and may reduce a shadow area of a read range. The RFID reader includes a signal receiver which receives a plurality of phase signals; a symbol detector which recovers data with respect to each of the received phase signals; and a signal selector which selects a signal that satisfies a predetermined standard, from the data-recovered phase signals.
摘要翻译：提供了一种RFID读取器和数据恢复方法，其通过I信号路径或Q信号路径接收RFID标签的反向散射信号时，仅选择完整性检查的相位信号，并且可以减少读取的阴影区域范围。 RFID读取器包括接收多个相位信号的信号接收器; 符号检测器，其针对每个所接收的相位信号恢复数据; 以及从数据恢复的相位信号中选择满足预定标准的信号的信号选择器。

10. 发明申请

US20060290508A1 Reader, tags, radio frequency identification (RFID) system, and method thereof 审中-公开
标题翻译：读写器，标签，射频识别（RFID）系统及其方法
公开(公告)号：US20060290508A1
公开(公告)日：2006-12-28
申请号：US11473031
申请日：2006-06-23
申请人： Artem Moutchkaev , Woo-shik Kang , Kyung-ho Park
发明人： Artem Moutchkaev , Woo-shik Kang , Kyung-ho Park
IPC分类号： G06K7/00 , G08B13/14
CPC分类号： G06K19/0723 , G06K7/0008 , G06K7/10019 , H04B2201/70715 , H04J13/004
摘要： A reader, tags, an RFID system, and a method of simultaneously identifying a plurality of tags having colliding reply signals and reducing the reading time. In the RFID system including a reader and plural tags assigned unique IDs, the reader stores a comparison code which identifies ID codes generated based on the unique IDs of the tags, and issues a query signal to the tags to inquire into the presence of the tags. In response to the received query signal, the tags generate the ID) codes based on their unique IDs and sends the ID codes to the reader. The reader stores the received ID codes and identifies the responding tags by comparing the stored comparison code with the ID codes. When the ID codes are orthogonal, colliding reply signals can be resolved through a correlation technique.
摘要翻译：读取器，标签，RFID系统以及同时识别具有冲突回复信号的多个标签并减少读取时间的方法。在包括读取器和分配唯一ID的多个标签的RFID系统中，读取器存储标识基于标签的唯一ID生成的ID代码的比较代码，并向标签发出查询信号以查询标签的存在。响应于接收到的查询信号，标签基于其唯一的ID生成ID）代码，并将ID代码发送给读取器。读取器存储所接收的ID码，并通过将所存储的比较码与ID码进行比较来识别响应标签。当ID码正交时，可以通过相关技术解决碰撞应答信号。

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