公开(公告)号：US20090018979A1

公开(公告)日：2009-01-15

申请号：US11776565

申请日：2007-07-12

Applicant: Jinsong Yu ,  Seth R. Atkinson ,  Luke Kelly ,  William B. Kunz ,  Larry J. Israel ,  Xin Li

Inventor： Jinsong Yu ,  Seth R. Atkinson ,  Luke Kelly ,  William B. Kunz ,  Larry J. Israel ,  Xin Li

IPC: G06F15/18 ,  G06F3/048 ,  G09B23/02

CPC classification number: G09B7/02 ,  G09B19/025

Abstract: A problem checker architecture that monitors user progress during a problem-solving process and assists the user through the process (e.g., when requested) using common human methods of solving the problem. Assistance can be in the form of detecting errors during the process, and providing context-sensitive help information when the user gets stuck or makes a mistake. The problem checker can walk the user through the process of solving a math problem one step at a time allowing the user to learn to solve math problems according to a number of different methods. Rather than simply calculating and displaying the answer, the problem checker allows the user to attempt to solve math problems, providing direction only when asked and correction only when required. The problem checker can recognize multiple solution methods for many common math problems and guide the user to the solution via any of the methods.

Abstract translation: 一种在问题解决过程中监视用户进度的问题检查器体系结构，并且通过使用常见的解决问题的人的方法来帮助用户完成该过程（例如，当被请求时）。 援助可以是在过程中检测错误的形式，并且在用户被卡住或犯错误时提供上下文相关的帮助信息。 问题检查器可以使用户逐步解决数学问题的过程，一次允许用户根据多种不同的方法学习解决数学问题。 问题检查器不是简单地计算和显示答案，而是允许用户尝试解决数学问题，仅在需要时询问和更正方面提供方向。 问题检查器可以识别许多常见数学问题的多种解决方法，并通过任何方法指导用户解决方案。

公开(公告)号：US20090012398A1

公开(公告)日：2009-01-08

申请号：US11870296

申请日：2007-10-10

Applicant: Yu Zhang ,  Xin Li

Inventor： Yu Zhang ,  Xin Li

IPC: A61B8/00

CPC classification number: G01S7/52077 ,  G01S7/52034 ,  G01S7/52066 ,  G01S15/582 ,  G01S15/8979

Abstract: The present invention provides a method and apparatus for filling Doppler signal gaps. The method comprises steps of: storing Doppler signals before and after a gap; analyzing spectral characteristics of the Doppler signals to be filled; judging whether the Doppler signals are to be frequency compensated according to the spectral parameters; compensating the Doppler signals; and filling the gap by means of weighting and superposing the frequency compensated Doppler signals to be filled and the original Doppler signals before and after the gap based on the judging result. According to the method of the present invention, the Doppler signals before and after the gap are first subjected to frequency compensation, and then weighted and superposed with the acquired Doppler signals, thus obtaining a continuous spectrogram and audio output and maintaining the original spectral characteristics of the Doppler signal.

Abstract translation: 本发明提供了一种用于填充多普勒信号间隙的方法和装置。 该方法包括以下步骤：在间隙之前和之后存储多普勒信号; 分析要填充的多普勒信号的频谱特性; 根据光谱参数判断多普勒信号是否要进行频率补偿; 补偿多普勒信号; 并根据判断结果，通过加权和叠加待补充的频率补偿多普勒信号和间隙前后的原始多普勒信号来填补间隙。 根据本发明的方法，首先对间隙之前和之后的多普勒信号进行频率补偿，然后与获取的多普勒信号进行加权和叠加，从而获得连续的谱图和音频输出，并保持原始的频谱特性 多普勒信号。

公开(公告)号：US20080144520A1

公开(公告)日：2008-06-19

申请号：US11792164

申请日：2004-12-02

Applicant: Xuemin Liu ,  Xin Li ,  Xiaohan Liu

Inventor： Xuemin Liu ,  Xin Li ,  Xiaohan Liu

IPC: G06F11/30

CPC classification number: H04W52/143 ,  H04W52/367

Abstract: The present invention relates to a method for adjusting forward transmission power control threshold of a terminal in a mobile communication system, including the following steps of setting in advance at a base station side a forward pilot threshold and a lower bound, an upper bound of a forward transmission power control threshold as well as adjustment ranges of said lower bound and upper bound; obtaining the current forward pilot energy measured and reported by the terminal; judging whether the forward pilot energy exceeds said forward pilot threshold; and adjusting the forward transmission power control threshold of the terminal. In the invention, the forward pilot energy reported by the terminal is judged and adjusted through the pre-set parameters above, so as to dynamically adjust the forward transmission power control threshold of the terminal in the sector, reduce call drop rate, and promote the communication quality of a CDMA mobile communication system.

Abstract translation: 本发明涉及一种用于调整移动通信系统中的终端的前向传输功率控制阈值的方法，包括以下步骤：在基站侧预先设置前向导频阈值和下限， 前向传输功率控制阈值以及所述下限和上限的调整范围; 获得终端测量和报告的当前前进导频能量; 判断前向导频能量是否超过所述前向导频阈值; 并调整终端的正向传输功率控制阈值。 在本发明中，由终端报告的前向导频能量通过上述预设参数进行判断和调整，动态调整终端在该扇区中的前向传输功率控制阈值，降低呼叫丢弃率，促进 CDMA移动通信系统的通信质量。

公开(公告)号：US07139433B2

公开(公告)日：2006-11-21

申请号：US10388995

申请日：2003-03-13

Applicant: Xin Li

Inventor： Xin Li

IPC: G06K9/36

CPC classification number: G06T9/00 ,  G06K9/38 ,  G06K2209/01 ,  G06T9/007

Abstract: A method and apparatus for compressing compound images of the type containing text, graphics and photographic imagery. This method and apparatus offer significant simplicity and computational efficiency by progressing fundamentally through a first processing phase, wherein an original compound image is first separated into (1) a foreground (text and graphics) layer, and (2) a more pixel-complicated background (photographic imagery) layer, all based upon a simple region-growing segmentation algorithm, and then a follow-up phase which involves individual and differentiated compression of the two segmented layers. Simple regional boundary encodation is employed for the foreground layer, and a lifting-scheme-modified ASWT algorithm is employed for the background layer.

Abstract translation: 一种用于压缩包含文本，图形和照相图像的类型的复合图像的方法和装置。 该方法和装置通过在第一处理阶段从根本上进步而提供了显着的简单性和计算效率，其中原始复合图像首先被分成（1）前景（文本和图形）层，和（2）更像素复杂的背景 （摄影图像）层，都基于简单的区域生长分割算法，然后是涉及两个分段层的单独和分化压缩的后续阶段。 前景层采用简单的区域边界编码，背景层采用提升方案修改的ASWT算法。

公开(公告)号：US07010043B2

公开(公告)日：2006-03-07

申请号：US10127742

申请日：2002-04-22

Applicant: Louis J. Kerofsky ,  Xin Li

Inventor： Louis J. Kerofsky ,  Xin Li

IPC: H04N7/18

CPC classification number: H04N21/4621 ,  H04N19/107 ,  H04N19/114 ,  H04N19/177 ,  H04N19/33 ,  H04N19/36 ,  H04N19/61 ,  H04N19/63 ,  H04N21/234327

Abstract: A method in a scalable encoder for reducing the average latency associated with randomly accessing an encoded digital video signal is disclosed. This method may include converting a digital video signal into a first layer having a first degree of quality and a second layer having a second degree of quality that is higher than the first degree of quality. The method may also include encoding the first layer at a first intra-frame rate, and encoding the second layer at a second intra-frame rate that is lower than the first intra-frame rate. A method in a scalable decoder for reducing the average latency associated with randomly accessing an encoded digital video signal is also provided. The method includes accessing a first layer of a digital video signal. The first layer includes the digital video signal encoded at a first degree of quality and a first intra-frame rate. The method also includes accessing a second layer of the digital video signal. The second layer includes the digital video signal encoded at a second degree of quality higher than the first degree of quality and a second intra-frame rate lower than the first intra-frame rate.

公开(公告)号：US06944225B2

公开(公告)日：2005-09-13

申请号：US09912799

申请日：2001-07-24

Applicant: Xin Li

Inventor： Xin Li

IPC: H04N7/12 ,  H04N7/18 ,  H04N7/26

CPC classification number: H04N19/53 ,  H04N19/61 ,  H04N19/63

Abstract: A method of data compression. A multiple-level wavelet transform transforms image data of an original image. Motion compensation is performed on a low-frequency band of the transformed image data. This band is then inversely transformed and used to reconstruct a portion of the original image. The remaining portions of the original image are then reconstructed from that portion. This image data then becomes the basis of the next level of the wavelet transform and is transformed back into the wavelet domain. This process is repeated until all of the levels of the wavelet transform have been used.

Abstract translation: 数据压缩方法。 多级小波变换转换原始图像的图像数据。 在变换图像数据的低频带上执行运动补偿。 然后将该带逆向变换并用于重建原始图像的一部分。 然后从该部分重建原始图像的剩余部分。 该图像数据然后成为小波变换的下一级的基础，并被转换回小波域。 重复该过程，直到使用小波变换的所有级别为止。

公开(公告)号：US5999207A

公开(公告)日：1999-12-07

申请号：US857261

申请日：1997-05-16

Applicant: Arturo A. Rodriguez ,  Dean F. Jerding ,  Neilesh R. Patel ,  Timothy W. Simerly ,  Luis A. Rovira ,  Xin Li

Inventor： Arturo A. Rodriguez ,  Dean F. Jerding ,  Neilesh R. Patel ,  Timothy W. Simerly ,  Luis A. Rovira ,  Xin Li

IPC: H04N7/14

CPC classification number: H04N7/141 ,  H04N7/147

Abstract: A graphical user interface for a videophone in a cable television system allows the user to access the videophone functionalities with an input control device and a television monitor. The user can place a call, receive a call and store/access/call addresses using a remote in conjunction with the graphical user interface display screens. The videophone has several elements including a user interface, a graphics engine, a network interface, a remote control interface, and an output audio/video line connected to a television monitor. The user interface receives and processes control inputs using a microprocessor and the graphics engine generates the display screens using a DSP. Depending on processing requirements, the DSP may implement the user interface rather than the microprocessor. Also, anti-aliasing fonts are used to generate a high quality display. To save processing cycles, the anti-aliasing fonts may be retrieved from a look-up table rather than being generated in real time. The videophone may be implemented as a plug-in device to a set-top box, a standalone unit, or a standalone unit with a set-top box between the monitor and the videophone unit. When implemented with a set-top box the same remote control unit may be used to control the television and videophone functions.

Abstract translation: 用于有线电视系统中的可视电话的图形用户界面允许用户通过输入控制设备和电视监视器来访问视频电话功能。 用户可以使用遥控器与图形用户界面显示屏幕进行呼叫，接收呼叫和存储/访问/呼叫地址。 视频电话具有多个元件，包括用户界面，图形引擎，网络接口，遥控接口以及连接到电视监视器的输出音频/视频线。 用户界面使用微处理器接收和处理控制输入，图形引擎使用DSP生成显示屏幕。 根据处理要求，DSP可以实现用户界面而不是微处理器。 此外，抗锯齿字体用于生成高质量的显示。 为了节省处理周期，可以从查找表中检索抗锯齿字体，而不是实时生成。 视频电话可以被实现为机顶盒，独立单元或具有在监视器和可视电话单元之间的机顶盒的独立单元的插件设备。 当使用机顶盒实现时，可以使用相同的遥控单元来控制电视和视频电话功能。

公开(公告)号：US10685065B2

公开(公告)日：2020-06-16

申请号：US14385274

申请日：2012-03-17

Applicant: Zhaohui Zheng ,  Xin Li ,  Rongqing Lu ,  Shuanghong Yang

Inventor： Zhaohui Zheng ,  Xin Li ,  Rongqing Lu ,  Shuanghong Yang

IPC: G06F16/9032 ,  G06F16/9535 ,  G06Q30/02 ,  G06N5/04

Abstract: Method, system, and programs for recommending content to a user. First information related to one or more previous users is first obtained. A model that maps from users to topics of interest is then established based on the first information related to the one or more previous users. Second information related to the current user is also obtained. One or more topics of interest are identified for the current user based on the model. Content is recommended to the current user in accordance with the one or more topics of interest for the current user. Eventually, an updated model is generated by integrating information associated with the current user with the model established based on the first information related to the one or more previous users. The information associated with the current user includes the second information related to the current user.

公开(公告)号：US20190001311A1

公开(公告)日：2019-01-03

申请号：US16023997

申请日：2018-06-29

Applicant: Ali A. Rownaghi ,  Xin Li ,  Fateme Rezaei

Inventor： Ali A. Rownaghi ,  Xin Li ,  Fateme Rezaei

IPC: B01J29/00 ,  B01J21/16 ,  B01J29/85 ,  B01J29/40 ,  B01J29/48 ,  B01J29/46 ,  B01J35/04 ,  B01J35/10 ,  C07C4/06

Abstract: The present disclosure relates to 3D printed zeolite scaffolds. The zeolite scaffolds can be used as a catalyst for methanol to olefin (MTO) conversion and hydrocarbon cracking processes.

公开(公告)号：US09790712B2

公开(公告)日：2017-10-17

申请号：US15127794

申请日：2015-03-19

Applicant: Xin Li

Inventor： Xin Li

IPC: E05B47/00 ,  E05B17/14

CPC classification number: E05B47/0044 ,  E05B17/142

Abstract: A magnetic coding free pin type lock cylinder structure includes: a lock cylinder housing (101), a lock knob (104) disposed within the lock cylinder housing (101), a lock cylinder front end cover (102) and a lock cylinder rear end cover (103). Pin vertically moving grooves (114) and pin horizontally rotary grooves (113) are provided on an inner wall of the lock cylinder housing (101). An unlocking hole (116) for a magnetic coding key (115) is provided on the lock knob (104). A plurality of pin vertical sliding grooves (112) is provided on an outer wall of the lock knob (104). Free pins are provided in at least one of the plurality of pin vertical sliding grooves (112), and the free pins are big pins (107) or small pins (108).