公开(公告)号：US08117249B1

公开(公告)日：2012-02-14

申请号：US11926869

申请日：2007-10-29

申请人： Debanjan Mukherjee ,  Jishnu Bhattacharjee ,  Qian Yu ,  Abhijit Phanse

发明人： Debanjan Mukherjee ,  Jishnu Bhattacharjee ,  Qian Yu ,  Abhijit Phanse

IPC分类号： G06F17/10

CPC分类号： H03F3/45183 ,  H03F2203/45634 ,  H03F2203/45638 ,  H03H11/265 ,  H03H15/02 ,  H04L2025/03477 ,  H04L2025/03617

摘要： Systems and methods provide analog delay elements, which may be utilized in isolation or in a cascade, such as for use within equalizers or other types of applications. For example, a delay element may include a broadband amplifier and a passive, programmable filter, which may provide a desired magnitude and group delay response over a wide frequency range while being tolerant of process variations. An equalizer, for example, may include the delay element within its feed forward filter and/or within its other circuits, such as within its adaptive coefficient generator or slicer input time-align circuit.

摘要翻译： 系统和方法提供模拟延迟元件，其可以在隔离或级联中使用，例如用于均衡器或其他类型的应用中。 例如，延迟元件可以包括宽带放大器和无源可编程滤波器，其可以在宽的频率范围内提供期望的幅度和组延迟响应，同时容忍工艺变化。 例如，均衡器可以包括其前馈滤波器内和/或其其它电路内的延迟元件，例如在其自适应系数发生器或限幅器输入时间对准电路内。

公开(公告)号：US07889856B2

公开(公告)日：2011-02-15

申请号：US11274939

申请日：2005-11-15

申请人： Bin Wang ,  Yihua Cheng ,  Xiaoqing Hu ,  Xiaojun Mo ,  Jihong Dong ,  Qian Yu ,  Xuanming Lu ,  Xiaodong Zhao ,  Yongfeng Cai ,  Junrong Xu ,  Guodao Yang ,  Youjun Chen ,  Zujian Li ,  Guofan Tong ,  Shichang Xiao ,  Yi Zhang ,  Jiaqing Liu ,  Yonghong Wu ,  Shiqian Li

发明人： Bin Wang ,  Yihua Cheng ,  Xiaoqing Hu ,  Xiaojun Mo ,  Jihong Dong ,  Qian Yu ,  Xuanming Lu ,  Xiaodong Zhao ,  Yongfeng Cai ,  Junrong Xu ,  Guodao Yang ,  Youjun Chen ,  Zujian Li ,  Guofan Tong ,  Shichang Xiao ,  Yi Zhang ,  Jiaqing Liu ,  Yonghong Wu ,  Shiqian Li

IPC分类号： H04M5/00

CPC分类号： H04M3/42068 ,  H04M3/42017 ,  H04M3/4211 ,  H04M3/487 ,  H04M2203/2072

摘要： Disclosed are systems and methods for providing ring back tones in a communication network. At first, a ring back tone device for storing and playing the ring back tone customized by a subscriber is established in the communication network. Whether a subscriber is a ring back tone service register subscriber is judged with a certain triggering mode, such as intelligent network triggering, signaling interception triggering, call forwarding triggering or switching device triggering. If it is judged the subscriber is a ring back tone service registered subscriber, a connection between the originating switching device and the terminating switching device and a connection between a switching device and the ring back tone device are established. When the called terminal is idle, the ring back tone device provides a piece of customized ring back tone to the calling subscriber for replacing traditional ring back tone.

摘要翻译： 公开了用于在通信网络中提供回铃音的系统和方法。 首先，在通信网络中建立用于存储和播放由订户定制的回铃音的回铃音设备。 通过智能网络触发，信令拦截触发，呼叫转移触发或切换设备触发等某种触发模式来判断用户是否是回铃音服务注册用户。 如果判断用户是回铃音业务注册用户，则建立起始交换设备与终端交换设备之间的连接以及交换设备与回铃音设备之间的连接。 当被叫终端空闲时，回铃音设备向主叫用户提供一段定制的回铃音，以取代传统的回铃音。

公开(公告)号：US07561617B1

公开(公告)日：2009-07-14

申请号：US11859649

申请日：2007-09-21

申请人： Abhijit G. Shanbhag ,  Abhijit Phanse ,  Jishnu Bhattacharjee ,  Debanjan Mukherjee ,  Prashant Choudhary ,  Edem Ibragimov ,  Venugopal Balasubramonian ,  Qian Yu ,  Madabusi Govindarajan

发明人： Abhijit G. Shanbhag ,  Abhijit Phanse ,  Jishnu Bhattacharjee ,  Debanjan Mukherjee ,  Prashant Choudhary ,  Edem Ibragimov ,  Venugopal Balasubramonian ,  Qian Yu ,  Madabusi Govindarajan

IPC分类号： H03H7/30

CPC分类号： H04L25/03063 ,  H04L25/03044 ,  H04L2025/03617

摘要： Systems and methods are disclosed to provide channel monitoring and/or performance monitoring for a communication channel. For example, in accordance with an embodiment of the present invention, an equalizer is disclosed that equalizes for channel distortions and also provides channel and performance monitoring information, such as for example bandwidth estimation, channel identification, signal-to-noise ratio, chromatic dispersion, and/or polarization-mode dispersion.

摘要翻译： 公开了系统和方法来为通信信道提供信道监测和/或性能监测。 例如，根据本发明的实施例，公开了一种对于信道失真进行均衡的均衡器，并且还提供信道和性能监视信息，例如带宽估计，信道识别，信噪比，色散 ，和/或偏振模色散。

公开(公告)号：US20080273681A1

公开(公告)日：2008-11-06

申请号：US11793127

申请日：2005-12-19

申请人： Yong Song ,  Qian Yu ,  Junsong Yi ,  Bing Zhang

发明人： Yong Song ,  Qian Yu ,  Junsong Yi ,  Bing Zhang

IPC分类号： H04M3/42 ,  H04M7/00 ,  H04M1/64

CPC分类号： H04M3/42102 ,  H04M3/42017 ,  H04M2207/12

摘要： A method for implementing a ring back tone, including: receiving, by a first Service Control Point, an intelligent service request triggered by a Service Switching Point, based on a call of a calling party; obtaining personal ring back tone information of a called party and/or group ring back tone information of a group, which the called party belongs to; acquiring first ring back tone information according to the personal ring back tone information and/or the group ring back tone information delivering a connect message containing the first ring back tone information to the Service Switching Point the connect message being used to instruct the Service Switching Point to connect the call to an Advanced Intelligent Peripheral for playing the ring back tone to the calling party according to the first ring back tone information.

摘要翻译： 一种用于实现回铃音的方法，包括：基于呼叫方的呼叫，由第一服务控制点接收由服务交换点触发的智能服务请求; 获取被叫方所属的组的被叫方和/或组回铃音信息的个人回铃音信息; 根据个人回铃音信息和/或将包含第一回铃音信息的连接消息传送到服务交换点的组回铃音信息，获取第一回铃音信息，该连接消息用于指示服务交换点 将呼叫连接到高级智能外设，根据第一个回铃音信息向主叫方播放回铃音。

公开(公告)号：US20080123900A1

公开(公告)日：2008-05-29

申请号：US11548185

申请日：2006-10-10

申请人： Yunqian Ma ,  Qian Yu ,  Isaac Cohen

发明人： Yunqian Ma ,  Qian Yu ,  Isaac Cohen

IPC分类号： G06K9/00

CPC分类号： G08B13/19608 ,  G06K9/32 ,  G06T7/215 ,  G06T7/277 ,  G06T7/292 ,  G06T2207/30232 ,  G06T2207/30241

摘要： A tracking system that may initially take image sequences from sensors and regions of interest computed automatically, or defined by the operator, or provided by another approach or way. Tracklets may be initialized from the provided regions of interest. The tracklets of the same target may be associated with each other to form another tracklet of another level. Tracklets may be merged to form tracks. Association of tracklets or tracks may be effected at various levels in a hierarchical manner. Also, association of observations, tracklets and tracks may be based on a computation of distance, i.e., similarity in motion and appearance.

摘要翻译： 跟踪系统可以最初从传感器和感兴趣的区域中获取图像序列，这些图像序列自动地或由操作者定义，或者由另一种方法或方式提供。 可以从所提供的感兴趣区域初始化轨迹。 相同目标的轨迹可以彼此关联以形成另一级别的另一轨迹。 轨迹可以合并形成曲目。 轨迹或轨道的关联可以以各种层次的方式进行。 此外，观察，轨迹和轨道的关联可以基于距离的计算，即运动和外观的相似性。

公开(公告)号：US20080002856A1

公开(公告)日：2008-01-03

申请号：US11562266

申请日：2006-11-21

申请人： Yunqian Ma ,  Qian Yu ,  Isaac Cohen

发明人： Yunqian Ma ,  Qian Yu ,  Isaac Cohen

IPC分类号： G06K9/00 ,  G01S13/00 ,  H04N7/18

CPC分类号： H04N7/18 ,  G06K9/00335 ,  G06K9/00785 ,  G06K9/4671 ,  G06K9/6218 ,  G06K9/6292

摘要： A detection system fusing motion detection and object detection for various applications such as tracking, identification, and so forth. In an application framework, model information may be developed and used to reduce the false alarm rate. With a background model, motion likelihood for each pixel, for instance, of a surveillance image, may be acquired. With a target model, object likelihood for each pixel of the image may also be acquired. By joining these two likelihood distributions, detection accuracy may be significantly improved over the use of just one likelihood distribution for detection in applications such as tracking.

摘要翻译： 一种检测系统，可以对诸如跟踪，识别等的各种应用进行融合运动检测和物体检测。 在应用框架中，可以开发模型信息并用于减少误报率。 使用背景模型，可以获取每个像素（例如监视图像）的运动似然性。 使用目标模型，也可以获取图像的每个像素的对象似然。 通过加入这两个似然分布，可以比在诸如跟踪的应用中仅使用一个似然分布进行检测来显着改善检测精度。

公开(公告)号：US20070230557A1

公开(公告)日：2007-10-04

申请号：US11759720

申请日：2007-06-07

申请人： Venugopal Balasubramonian ,  Jishnu Bhattacharjee ,  Edem Ibragimov ,  Debanjan Mukherjee ,  Abhijit Phanse ,  Abhijit Shanbhag ,  Qian Yu

发明人： Venugopal Balasubramonian ,  Jishnu Bhattacharjee ,  Edem Ibragimov ,  Debanjan Mukherjee ,  Abhijit Phanse ,  Abhijit Shanbhag ,  Qian Yu

IPC分类号： H03H7/40

CPC分类号： H04L25/03057 ,  H03H21/0012 ,  H03H2021/0096 ,  H04L7/0029 ,  H04L7/0062 ,  H04L7/0079 ,  H04L2025/0349 ,  H04L2025/03611

摘要： An adaptive signal equalizer with a feedforward filter in which the feedback error signal and corresponding incoming data signal are dynamically aligned in time using signal interpolation, and further, to control the precursor/postcursor filter taps configuration, thereby producing more adaptive filter tap coefficient signals for significantly improved and robust signal equalization.

摘要翻译： 一种具有前馈滤波器的自适应信号均衡器，其中反馈误差信号和相应的输入数据信号在时间上使用信号插值动态对准，此外，控制前驱/后沿滤波器抽头配置，由此产生更多的自适应滤波器抽头系数信号， 显着改善和鲁棒的信号均衡。

公开(公告)号：US20070091995A1

公开(公告)日：2007-04-26

申请号：US11539810

申请日：2006-10-09

申请人： Edem Ibragimov ,  Qian Yu ,  Prashant Choudhary

发明人： Edem Ibragimov ,  Qian Yu ,  Prashant Choudhary

IPC分类号： H03H7/30 ,  H04B1/10

CPC分类号： H04L25/03057 ,  H03H21/0012 ,  H03H2021/0096 ,  H04L25/03063 ,  H04L25/0307 ,  H04L2025/0349 ,  H04L2025/03509 ,  H04L2025/03611

摘要： A decision feedback equalizer with dynamic feedback control for use in an adaptive signal equalizer. Timing within the decision feedback loop is dynamically controlled to optimize recovery of the data signal by the output signal slicer. The dynamic timing is controlled by a signal formed as a combination of feedback and feedforward signals. The feedback signal is an error signal related to a difference between pre-slicer and post-slicer signals. The feedforward signal is formed by differentiating and delaying the incoming data signal.

摘要翻译： 具有用于自适应信号均衡器的动态反馈控制的判决反馈均衡器。 动态控制决策反馈环路内的定时，以优化输出信号限幅器对数据信号的恢复。 动态定时由形成为反馈和前馈信号的组合的信号控制。 反馈信号是与预切片器和后切片器信号之间的差异相关的误差信号。 前馈信号通过差分和延迟输入数据信号来形成。

公开(公告)号：US20050271138A1

公开(公告)日：2005-12-08

申请号：US11186241

申请日：2005-07-21

申请人： Qian Yu ,  Venugopal Balasubramonian ,  Jishnu Bhattacharjee ,  Debanjan Mukherjee ,  Abhijit Phanse ,  Abhijit Shanbhag ,  Edem Ibragimov ,  Fabian Giroud

发明人： Qian Yu ,  Venugopal Balasubramonian ,  Jishnu Bhattacharjee ,  Debanjan Mukherjee ,  Abhijit Phanse ,  Abhijit Shanbhag ,  Edem Ibragimov ,  Fabian Giroud

IPC分类号： H04L7/02 ,  H04L25/03 ,  H03H7/30

CPC分类号： H04L7/0062 ,  H04L7/0029 ,  H04L25/03057 ,  H04L2025/03503

摘要： An apparatus and method for adaptively introducing a compensating signal latency related to a signal latency of a data symbol decision circuit. Adaptive timing control circuitry, including an interpolating mixer implemented as a tapped delay line with correlated tap coefficients, introduces a latency adaptively and substantially matching the latency of the data decision circuit for use within an adaptive equalizer, thereby minimizing the mean-squared error of such decision circuit. This adaptive latency is used in generating the feedback error signal which, in turn, can be used by the feedforward equalizer for dynamically adjusting its adaptive filter tap coefficients.

公开(公告)号：US06940898B2

公开(公告)日：2005-09-06

申请号：US10290571

申请日：2002-11-08

申请人： Abhijit G. Shanbhag ,  Qian Yu ,  Abhijit Phanse ,  Jishnu Bhattacharjee ,  Debanjan Mukherjee ,  Fabian Giroud ,  Venugopal Balasubramonian

发明人： Abhijit G. Shanbhag ,  Qian Yu ,  Abhijit Phanse ,  Jishnu Bhattacharjee ,  Debanjan Mukherjee ,  Fabian Giroud ,  Venugopal Balasubramonian

IPC分类号： H03H21/00 ,  H04L25/03 ,  H03H7/30 ,  H03H7/40 ,  H03K5/159

CPC分类号： H04L25/0307 ,  H03H21/0012 ,  H03H2021/0096 ,  H04L25/03063 ,  H04L2025/0349 ,  H04L2025/03509 ,  H04L2025/03611

摘要： An adaptive coefficient signal generator for use in an adaptive signal equalizer with fractionally-spaced feedback. The signals representing the feedback tap coefficients are generated in conjunction with a timing interpolation parameter such that the fractionally-spaced feedback circuitry dynamically emulates symbol-spaced feedback circuitry.

摘要翻译： 一种用于具有分数间隔反馈的自适应信号均衡器中的自适应系数信号发生器。 代表反馈抽头系数的信号与定时内插参数一起产生，使得分数间隔的反馈电路动态地仿真符号间隔反馈电路。