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11. 发明申请

US20140009552A1 METHOD AND APPARATUS FOR PRINTING A VARIABLE DATA BARCODE 审中-公开
标题翻译：用于打印可变数据条的方法和装置
公开(公告)号：US20140009552A1
公开(公告)日：2014-01-09
申请号：US13882474
申请日：2011-10-27
申请人： Xiaowei Liu , Zhihong Liu
发明人： Xiaowei Liu , Zhihong Liu
IPC分类号： B41J3/01
CPC分类号： B41J3/01 , B41J2/2142 , B41J29/393 , B41J29/46 , G06K5/02
摘要： This application discloses a method and an apparatus for printing a variable data barcode. The method may include a step of printing a variable data barcode corresponding to a first barcode on a medium by an inkjet printing device (S10), a step of transferring the medium via a transmission means to a detecting region (S20), a step of scanning the variable data barcode on the medium in the detecting region to obtain a second barcode by an online detecting device (S30), and a step of comparing the first barcode to the second barcode. If they do not match, an alarm may be issued (S40). The present application can improve the printing pass rate of variable data barcodes.
摘要翻译：本申请公开了一种用于打印可变数据条形码的方法和装置。该方法可以包括通过喷墨打印装置打印与媒体上的第一条形码相对应的可变数据条形码的步骤（S10），经由发送装置将媒体传送到检测区域的步骤（S20），步骤扫描检测区域中的介质上的可变数据条形码，以通过在线检测装置获得第二条形码（S30），以及将第一条形码与第二条形码进行比较的步骤。如果不匹配，则可能发出警报（S40）。本申请可以提高可变数据条形码的打印合格率。

12. 发明授权

US07924162B2 Tag identification system, tag reading apparatus, and method for determining sequence of tags 有权
标题翻译：标签识别系统，标签读取装置和用于确定标签序列的方法
公开(公告)号：US07924162B2
公开(公告)日：2011-04-12
申请号：US12182208
申请日：2008-07-30
申请人： Chen Song , Bo Zhou , Yabo Wang , Xiaowei Liu
发明人： Chen Song , Bo Zhou , Yabo Wang , Xiaowei Liu
IPC分类号： G08B13/14
CPC分类号： G06K7/0008 , G06K7/10039 , G06K7/10445 , H04W74/0808
摘要： The invention provides a tag identification system, a tag reading apparatus, and a method for determining sequence of tags. According to an aspect of the invention, a tag identification system comprises a tag reading apparatus and a plurality of tags, wherein: the tag reading apparatus has at least two antennas, wherein the apparatus transmits an interrogation signal within the coverage of each of the antennas; the plurality of tags sequentially pass by the coverage of each of the at least two antennas, each of the plurality of tags returning a reply to the at least two antennas in response to a received interrogation signal; and the tag reading apparatus includes a sequence determination unit which determines the sequence in which the plurality of tags pass by based on replies returned from the plurality of tags and received by the at least two antennas.
摘要翻译：本发明提供一种标签识别系统，标签读取装置和用于确定标签序列的方法。根据本发明的一个方面，标签识别系统包括标签读取装置和多个标签，其中：标签读取装置具有至少两个天线，其中该装置在每个天线的覆盖范围内发送询问信号 ; 所述多个标签顺序地通过所述至少两个天线中的每一个的覆盖，所述多个标签中的每一个标签响应于接收到的询问信号而返回对所述至少两个天线的回复; 并且标签读取装置包括：序列确定单元，其基于从多个标签返回并由至少两个天线接收的回复，确定多个标签经过的序列。

13. 发明授权

US07583754B2 Method and system for broadband predistortion linearization 有权
标题翻译：宽带预失真线性化方法与系统
公开(公告)号：US07583754B2
公开(公告)日：2009-09-01
申请号：US10533494
申请日：2002-10-31
申请人： Xiaowei Liu
发明人： Xiaowei Liu
IPC分类号： H04K1/02
CPC分类号： H04L27/368 , H03F1/3247 , H03F1/3258 , H03F2201/3209 , H03F2201/3233
摘要： The invention relates to a method and system for wideband digital pre-distortion linearization, which is used to overcome the influence of memory effect in radio frequency power amplifier, to expand digital pre-distortion linearization bandwidth, and to improve digital pre-distortion linearization performance. The method and system can get an in-band pre-distortion signal and an out-of-band pre-distortion signal according to the characteristic parameter of the amplifier; the in-band pre-distortion signal is up-converted and the up-converted signal is added to the out-of-band pre-distortion signal, which is not up-converted, then the combined signal is inputted to the power amplifier as an input signal; a part of the output signal from the power amplifier, serving as a feedback signal, can be compared with the original input signal, and the characteristic parameter of the amplifier for generating the in-band pre-distortion signal and the out-of-band pre-distortion signal is adaptively regulated according to the comparison result, so that the waveform of time domain or the frequency domain of the feedback signal can be close to that of the original input signal as much as possible.
摘要翻译：本发明涉及用于宽带数字预失真线性化的方法和系统，其用于克服射频功率放大器中存储器效应的影响，扩大数字预失真线性化带宽，并提高数字预失真线性化性能。该方法和系统可以根据放大器的特性参数获得带内预失真信号和带外预失真信号; 带内预失真信号被上变频，并且将上变频信号加到未被上变频的带外预失真信号中，则组合信号被输入到功率放大器输入信号作为反馈信号的来自功率放大器的输出信号的一部分可以与原始输入信号进行比较，并且用于产生带内预失真信号和带外的失真信号的放大器的特性参数预失真信号根据比较结果进行自适应调节，使得反馈信号的时域波形或频域波形尽可能接近原始输入信号的波形。

14. 发明申请

US20080164943A1 Predistortion Device Based On Vector Envelope Injection And The Method Thereof 失效
标题翻译：基于向量包络注入的预失真装置及其方法
公开(公告)号：US20080164943A1
公开(公告)日：2008-07-10
申请号：US11814636
申请日：2005-01-25
申请人： Xiaowei Liu , Hongtao Ru
发明人： Xiaowei Liu , Hongtao Ru
IPC分类号： H03F1/26
CPC分类号： H03F1/3241 , H03F2201/3221 , H03F2201/3224 , H04L27/366
摘要： The present invention discloses a predistortion method based on vector envelope injection. Said method includes the following steps: radio frequency input signals are divided into two signal streams; one input signal stream generates two envelope injection signals whose amplitudes can be adjusted independently; the other signal stream is divided into further two radio frequency signal streams; said two radio frequency signal streams are amplified with the same amplitude; frequency mixing is performed for said two envelope injection signals and two radio frequency signal streams respectively to obtain two compensation signals; the amplified radio frequency signal and compensation signals are power synthesized in the same way, so as to obtain two compensation signals and amplified radio frequency signals of different directions. This present invention also provides a corresponding predistortion device. With the predistortion method and device of present invention, the compensation of inter-modulated distortion component in arbitrary angle will be realized; since the inter-modulated distortion compensation is achieved by injecting low frequency envelope injection signals, the predistortion circuit is simplified and the cost is reduced significantly.
摘要翻译：本发明公开了一种基于向量包络注入的预失真方法。所述方法包括以下步骤：射频输入信号被分成两个信号流; 一个输入信号流产生两个包络注入信号，其幅度可以独立调整; 另一个信号流被分成另外两个射频信号流; 所述两个射频信号流以相同的幅度被放大; 对所述两个包络注入信号和两个射频信号流分别进行混频以获得两个补偿信号; 放大的射频信号和补偿信号以相同的方式进行功率合成，从而获得两个不同方向的补偿信号和放大的射频信号。本发明还提供了一种相应的预失真装置。利用本发明的预失真方法和装置，可以实现任意角度的互调失真分量的补偿; 由于通过注入低频包络注入信号来实现互调失真补偿，所以预失真电路被简化并且成本显着降低。

15. 发明申请

US20060240786A1 Method and system for broadband predistortion linearization 有权
公开(公告)号：US20060240786A1
公开(公告)日：2006-10-26
申请号：US10533494
申请日：2002-10-31
申请人： Xiaowei Liu
发明人： Xiaowei Liu
IPC分类号： H04B1/04
CPC分类号： H04L27/368 , H03F1/3247 , H03F1/3258 , H03F2201/3209 , H03F2201/3233
摘要： The invention relates to a method and system for wideband digital pre-distortion linearization, which is used to overcome the influence of memory effect in radio frequency power amplifier, to expand digital pre-distortion linearization bandwidth, and to improve digital pre-distortion linearization performance. The method and system can get an in-band pre-distortion signal and an out-of-band pre-distortion signal according to the characteristic parameter of the amplifier; the in-band pre-distortion signal is up-converted and the up-converted signal is added to the out-of-band pre-distortion signal, which is not up-converted, then the combined signal is inputted to the power amplifier as an input signal; a part of the output signal from the power amplifier, serving as a feedback signal, can be compared with the original input signal, and the characteristic parameter of the amplifier for generating the in-band pre-distortion signal and the out-of-band pre-distortion signal is adaptively regulated according to the comparison result, so that the waveform of time domain or the frequency domain of the feedback signal can be close to that of the original input signal as much as possible.

16. 发明授权

US08606727B2 Method and system for traffic prediction based on space-time relation 失效
标题翻译：基于时空关系的交通预测方法与系统
公开(公告)号：US08606727B2
公开(公告)日：2013-12-10
申请号：US12942783
申请日：2010-11-09
申请人： Tao Wu , Shaoya Wang , Junjian He , Weisong Hu , Jia Rao , Xiaowei Liu
发明人： Tao Wu , Shaoya Wang , Junjian He , Weisong Hu , Jia Rao , Xiaowei Liu
IPC分类号： G06F15/18
CPC分类号： G08G1/0104
摘要： A system and method for traffic prediction based on space-time relation are disclosed. The system comprises a section spatial influence determining section for determining, for each of a plurality of sections to be predicted, spatial influences on the section by its neighboring sections; a traffic prediction model establishment section for establishing, for each of the plurality of sections to be predicted, a traffic prediction model by using the determined spatial influences and historical traffic data of the plurality of sections; and a traffic prediction section for predicting traffic of each of the plurality of sections to be predicted for a future time period by using real-time traffic data and the traffic prediction model. An apparatus and method for determining spatial influences among sections, as well as an apparatus and method for traffic prediction, are also disclosed. With the present invention, a spatial influence of a section can be used as a spatial operator and a time sequence model can be incorporated, such that the influences on a current section by its neighboring section for a plurality of spatial orders can be taken into account. In this way, the traffic condition in a spatial scope can be measured more practically, so as to improve accuracy of prediction.
摘要翻译：公开了一种基于时空关系的交通预测系统和方法。该系统包括：区间空间影响确定部，用于对于要预测的多个部分中的每一个，通过其相邻部分确定对该部分的空间影响; 交通预测模型建立部分，用于通过使用所确定的多个部分的空间影响和历史交通数据来为所述多个预测部分中的每一个建立交通预测模型; 以及业务预测部，用于通过使用实时业务数据和业务量预测模型来预测未来时间段中将要预测的所述多个部分中的每一个的业务。还公开了一种用于确定各部分之间的空间影响的装置和方法，以及用于业务量预测的装置和方法。利用本发明，可以将部分的空间影响用作空间算子，并且可以并入时间序列模型，使得可以考虑其对于多个空间顺序的其相邻部分对当前部分的影响。以这种方式，可以更实际地测量空间范围内的交通状况，以提高预测的准确性。

17. 发明申请

US20110160987A1 METHOD AND APPARATUS FOR PROCESSING TRAFFIC INFORMATION BASED ON INTERSECTIONS AND SECTIONS 审中-公开
标题翻译：基于交互和部分处理交通信息的方法和装置
公开(公告)号：US20110160987A1
公开(公告)日：2011-06-30
申请号：US12942794
申请日：2010-11-09
申请人： Tao Wu , Weisong Hu , Xiaowei Liu , Shaoya Wang , Chenghai Li , Weili Zhang
发明人： Tao Wu , Weisong Hu , Xiaowei Liu , Shaoya Wang , Chenghai Li , Weili Zhang
IPC分类号： G08G1/00 , G01C21/36 , G06K9/00
CPC分类号： G08G1/0104
摘要： A method and apparatus for representing a road network and a method and system for processing traffic information data using the method for representing a road network are provided. The method for processing traffic information data comprises: conversion step of converting traffic information data based on road networks of one or more types of road maps into traffic information data of intersections and sections, based on correspondence between the road networks of one or more types of road maps and the road network represented by the intersections and the sections, wherein the road network represented by the intersections and the sections is obtained by the method for representing a road network; and fusion step of fusing the converted traffic information data of intersections and sections to obtain unified traffic information data. The present invention proposes using a road network represented by intersections and sections as an intermediate model, which emphasizes the importance of intersections as hub nodes of the road network, and is compatible with various forms of map representations and universal. In this way, more accurate and comprehensive information can be obtained by fusing traffic information data from different data sources, which is advantageous for services such as traffic information prediction.
摘要翻译：提供了一种用于表示道路网络的方法和装置以及用于表示道路网络的方法来处理交通信息数据的方法和系统。用于处理交通信息数据的方法包括：基于一个或多个类型的道路地图的道路网络之间的对应关系，将一个或多个类型的道路地图的道路网络的交通信息数据转换成交叉路口和交叉路口的交通信息数据的转换步骤道路图和由交叉口和区段代表的道路网络，其中由交叉口和区段表示的道路网络通过用于表示道路网络的方法获得; 以及融合步骤，将交叉路口和区段的经转换的交通信息数据融合，以获得统一的交通信息数据。本发明提出使用以交叉口和部分为代表的道路网络作为中间模型，强调交叉路口作为道路网络的枢纽节点的重要性，并且与各种形式的地图表示和通用性兼容。以这种方式，可以通过融合来自不同数据源的交通信息数据来获得更准确和全面的信息，这对于诸如交通信息预测的服务是有利的。

18. 发明申请

US20080106333A1 Method and System for out of Band Predistortion Linearization 有权
标题翻译：带外预失真线性化的方法与系统
公开(公告)号：US20080106333A1
公开(公告)日：2008-05-08
申请号：US11722294
申请日：2004-12-21
申请人： Xiaowei Liu
发明人： Xiaowei Liu
IPC分类号： H03F1/26 , H03F1/30
CPC分类号： H04L27/368 , H03F1/3241 , H03F1/3294 , H03F2201/3224
摘要： 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.
摘要翻译：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。本发明通过在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，从而避免了提高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。

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