公开(公告)号：US20090033466A1

公开(公告)日：2009-02-05

申请号：US12182381

申请日：2008-07-30

Applicant: CHEN SONG ,  Bo Zhou ,  Yabo Wang ,  Xiaowei Liu

Inventor： CHEN SONG ,  Bo Zhou ,  Yabo Wang ,  Xiaowei Liu

IPC: H04Q5/22

CPC classification number: G06K7/0008 ,  G06K7/10019 ,  G06K7/10128 ,  G06K7/10445

Abstract: The invention provides a tag identification system, a tag reading apparatus, and a method for determining location of tags. According to an aspect of the invention, a tag identification system comprises a tag reading apparatus which transmits interrogation signals and a plurality of tags arranged in a sequence, wherein each of the plurality of tags is capable of returning a reply in response to a received interrogation signal; the tag reading apparatus at least comprises a location determination unit which determines the arrangement location of the plurality of tags based on replies received by the tag reading apparatus which are returned by the plurality of tags in response to interrogation signals.

Abstract translation: 本发明提供了一种标签识别系统，标签读取装置和用于确定标签位置的方法。 根据本发明的一个方面，标签识别系统包括发送询问信号的标签读取装置和以序列排列的多个标签，其中，多个标签中的每一个能够响应于接收到的询问而返回答复 信号; 标签读取装置至少包括位置确定单元，其基于由标签读取装置接收的响应于询问信号由多个标签返回的答复来确定多个标签的布置位置。

公开(公告)号：US20080191882A1

公开(公告)日：2008-08-14

申请号：US12030348

申请日：2008-02-13

Applicant: Bo ZHOU ,  Xiaowei LIU ,  Min-Yu HSUEH

Inventor： Bo ZHOU ,  Xiaowei LIU ,  Min-Yu HSUEH

IPC: G08B13/14

CPC classification number: G06Q20/363 ,  G06F21/79 ,  G06Q20/3572 ,  G07F7/0866

Abstract: The invention provides a radio frequency identification system and method. The radio frequency identification system according to the invention comprises: a multi-core tag including a plurality of radio frequency identification tags, each radio frequency identification tag having an identification code and at least one set of verifiable data stored therein; and a radio frequency identification reader which sends a reading request to more than one radio frequency identification tag in the multi-core tag, requesting to read a first portion of one of the at least one set of verifiable data stored in the radio frequency identification tag, and authenticates the multi-core tag based on the data read from the multi-core tag, wherein each radio frequency identification tag in the multi-core tag further comprises control means, which, when the radio frequency identification tag receives the reading request from the radio frequency identification reader, in the event that all the data of the requested set of verifiable data is readable, performs a first operation so that from then on at least one data of the requested set of verifiable data cannot be read.

Abstract translation: 本发明提供射频识别系统和方法。 根据本发明的射频识别系统包括：包括多个射频识别标签的多核标签，每个射频识别标签具有识别码和存储在其中的至少一组可验证数据; 以及射频识别读取器，其向多核标签中的多于一个射频识别标签发送读取请求，请求读取存储在射频识别标签中的至少一组可验证数据中的一个的第一部分 并且根据从多核标签读取的数据来认证多核标签，其中多核标签中的每个射频识别标签进一步包括控制装置，当射频识别标签接收到来自 无线电频率识别读取器，在所请求的一组可验证数据的所有数据可读的情况下，执行第一操作，使得从那时起，所请求的一组可验证数据的至少一个数据不能被读取。

公开(公告)号：US20110160986A1

公开(公告)日：2011-06-30

申请号：US12942640

申请日：2010-11-09

Applicant: Tao WU ,  Weisong HU ,  Xiaowei LIU ,  Weili ZHANG ,  Chenghai LI

Inventor： Tao WU ,  Weisong HU ,  Xiaowei LIU ,  Weili ZHANG ,  Chenghai LI

IPC: G08G1/00

CPC classification number: G08G1/0962 ,  G08G1/0969

Abstract: A method and apparatus for conversion of traffic information based on traffic information element knowledge base are provided. According to the present invention, a road network is described using roads, intersections and sections as traffic information elements and a correspondence between these elements and a road topological network in a digital map is established, so that a universal traffic information describing model, which is compatible with language used in people's daily life, can be established. Further, a traffic information element knowledge base can be generated based on the roads, intersections and sections, their respective attributes and the relationship between them, to support inter-conversion between road topological network traffic information and text-based traffic information. With the universal traffic information describing model and the traffic information element knowledge base according to the present invention, it is possible to support fusion and conversion for traffic data from various sources and to support various forms of presentation and interaction for traffic information, such as presentation of traffic information on digital navigation map, textual description of traffic information, map presentation of traffic information for urban trunk roads, interaction for natural language queries of traffic information, etc.

Abstract translation: 提供了一种基于交通信息元素知识库转换交通信息的方法和装置。 根据本发明，使用道路，交叉路口和路段作为交通信息元素来描述道路网络，并且建立这些元素与数字地图中的道路拓扑网络之间的对应关系，使得通用交通信息描述模型是 兼容人们日常生活中使用的语言，可以建立起来。 此外，可以基于道路，交叉点和部分，它们各自的属性及其关系来生成交通信息元素知识库，以支持道路拓扑网络交通信息和基于文本的交通信息之间的相互转换。 利用根据本发明的通用交通信息描述模型和交通信息元素知识库，可以支持来自各种来源的交通数据的融合和转换，并支持交通信息的各种呈现和交互形式，例如呈现 数字导航地图上的交通信息，交通信息的文字描述，城市主干道交通信息的地图呈现，交通信息自然语言查询的交互等。

公开(公告)号：US07908075B2

公开(公告)日：2011-03-15

申请号：US11598725

申请日：2006-11-14

Applicant: Hongwei Qi ,  Yuguang Liu ,  Yabo Wang ,  Xiaowei Liu ,  Huifeng Liu

Inventor： Hongwei Qi ,  Yuguang Liu ,  Yabo Wang ,  Xiaowei Liu ,  Huifeng Liu

IPC: G08G1/09 ,  G01C21/00 ,  G06F17/00

CPC classification number: G06F17/30241 ,  G08G1/096716 ,  G08G1/096741 ,  G08G1/096775 ,  G09B29/106

Abstract: The invention provides a map knowledge base generating device and a method thereof, and a traffic information query system and a method thereof. The traffic information query system, comprises: a map knowledge base generating section for generating knowledge related to attributes of roads and traffic points, attribute values corresponding to the attributes, and spatial information of the attribute values based on an electronic map so as to form a map knowledge base; and a traffic query processing section for receiving and analyzing a query form a user terminal, decomposing the query if it is determined that the query can be decomposed according to the map knowledge base, and searching a traffic information database according to the decomposed the query request.

Abstract translation: 本发明提供一种地图知识库生成装置及其方法，以及交通信息查询系统及其方法。 交通信息查询系统包括：地图知识库生成部分，用于生成与道路和交通点的属性相关的知识，与属性对应的属性值，以及基于电子地图的属性值的空间信息，以形成 地图知识库; 以及流量查询处理部分，用于从用户终端接收和分析查询，如果确定可以根据地图知识库来分解查询，则分解查询，并且根据分解的查询请求搜索交通信息数据库 。

公开(公告)号：US07848717B2

公开(公告)日：2010-12-07

申请号：US11722294

申请日：2004-12-21

Applicant: Xiaowei Liu

Inventor： Xiaowei Liu

IPC: H04B1/04

CPC classification number: H04L27/368 ,  H03F1/3241 ,  H03F1/3294 ,  H03F2201/3224

Abstract: The present invention discloses a method and a system for out-of-band predistortion linearization, comprising steps of: dividing base band inputted or intermediate frequency signal into an in-band signal branch and an out-of-band signal branch; processing the in-band signal to form RF (Radio Frequency) signal; processing the out-of-band signal to form out-of-band predistortion signal for pre-compensating the in-band signal; adding the in-band signal with the out-of-band predistortion signal, and taking the result as the input of RF power amplifier. The present invention compensates the nonlinear distortion of the RF power amplifier by a way of out-of-band compensating signal in a wireless communication environment, thereby avoiding the limitation of improving performance of conventional predistortion method, and solving the limitation of bandwidth and capability of the predistortion system caused by memory effect.

Abstract translation: 本发明公开了一种用于带外预失真线性化的方法和系统，包括以下步骤：将基带输入或中频信号分成带内信号分支和带外信号分支; 处理带内信号以形成RF（射频）信号; 处理带外信号以形成用于预补偿带内信号的带外预失真信号; 将带内信号与带外预失真信号相加，并将结果作为RF功率放大器的输入。 本发明通过无线通信环境中的带外补偿信号的方式来补偿RF功率放大器的非线性失真，从而避免了改进传统预失真方法的性能的限制，并且解决了带宽和能力的限制 由记忆效应引起的预失真系统。

公开(公告)号：US20080284606A1

公开(公告)日：2008-11-20

申请号：US12119847

申请日：2008-05-13

Applicant: Xiaowei LIU ,  Bo ZHOU

Inventor： Xiaowei LIU ,  Bo ZHOU

IPC: G08B13/14

CPC classification number: G06K19/07749 ,  G06K19/07327 ,  G06K19/07345

Abstract: The invention provides a physical-characteristic-based RFID tag apparatus which is easy to implement, controllable by a user and capable of enabling privacy protection function as appropriate. According to the invention, there is provided an RFID tag apparatus, comprising: an RFID tag which comprises an antenna and a chip; and a shielding part which is capable of switching between a first state in which it blocks RF signals to or from the RFID tag and a second state in which it does not block RF signals to or from the RFID tag.

Abstract translation: 本发明提供了一种易于实现的物理特征型RFID标签装置，可由用户控制并且能够适当地实现隐私保护功能。 根据本发明，提供了一种RFID标签装置，包括：RFID标签，其包括天线和芯片; 以及屏蔽部分，其能够在其中阻止来自RFID标签的RF信号的第一状态和不阻止来自/从RFID标签的RF信号的第二状态中切换。