公开(公告)号：US07146391B2

公开(公告)日：2006-12-05

申请号：US10350286

申请日：2003-01-24

申请人： Gregory H. Efland ,  Haixiang Liang ,  Yuanjie Chen

发明人： Gregory H. Efland ,  Haixiang Liang ,  Yuanjie Chen

IPC分类号： G06F7/48 ,  G06F15/80

CPC分类号： H04L7/0012 ,  G06F9/52 ,  H03M13/2732 ,  H03M13/6533 ,  H04L1/0071 ,  H04L7/0029 ,  H04L25/03159 ,  H04L27/2647 ,  H04L45/00 ,  H04L49/90 ,  H04L2012/5681 ,  H04M11/062

摘要： Provided is a system and method for a modem including one or more processing paths. Also included is a number of interconnected modules sequentially arrayed along the one or more paths. Each module is configured to (i) process signals passed along the paths in accordance with the sequence and (ii) implement predetermined functions to perform the processing. Further, each of the modules has a particular degree of functional programmability and the degrees of functional programmability monotonically vary in accordance with the sequence.

公开(公告)号：US08732675B2

公开(公告)日：2014-05-20

申请号：US10767604

申请日：2004-01-28

申请人： Haixiang Liang ,  Ilya Stomakhin ,  Mark Gonikberg ,  Yury Gonikberg

发明人： Haixiang Liang ,  Ilya Stomakhin ,  Mark Gonikberg ,  Yury Gonikberg

IPC分类号： G06F9/44 ,  G06F11/00 ,  H04B1/38 ,  G06F11/34 ,  H04M11/06

CPC分类号： G06F11/3409 ,  G06F11/3636 ,  H04M11/062

摘要： A system and method for analyzing the real-time performance of a communication device. An aspect of the present invention records information input to the communication device during real-time operation of the communication device. A playback device or module may execute a model of the communication device in a non-real-time environment according to the recorded real-time input information. System execution in the non-real-time playback environment may, therefore, be equivalent to the original operation of the communication device that occurred in real-time. Accordingly, situations that occur in real-time may be efficiently recreated in non-real-time playback. An operator may analyze the past real-time performance of the communication device using the playback device or module, the recorded real-time input information, and a debugger utility if desired, without conducting additional trials to reproduce the desired operational situation.

摘要翻译： 一种用于分析通信设备的实时性能的系统和方法。 本发明的一个方面在通信设备的实时操作期间记录输入到通信设备的信息。 播放装置或模块可以根据记录的实时输入信息在非实时环境中执行通信装置的模型。 因此，在非实时播放环境中的系统执行可能等同于实时发生的通信设备的原始操作。 因此，可以在非实时重放中有效地重新产生实时发生的情况。 如果需要，操作者可以使用回放设备或模块，记录的实时输入信息和调试器实用程序来分析通信设备的过去的实时性能，而不进行额外的尝试来再现期望的操作情况。

公开(公告)号：US08335180B1

公开(公告)日：2012-12-18

申请号：US12248852

申请日：2008-10-09

申请人： Purushotham Kamath ,  James S. Cho ,  Prem Kumar ,  Matthew Smith ,  Haixiang Liang

发明人： Purushotham Kamath ,  James S. Cho ,  Prem Kumar ,  Matthew Smith ,  Haixiang Liang

IPC分类号： H04B7/212 ,  H04J3/00 ,  H04J3/06

CPC分类号： H04B7/2643

摘要： Starting up and synchronizing multiple access points in a wireline communications circuit using transceivers compatible with a wireless communications protocol with an adaptive Time Division Multiple Access scheme for a multi-channel medium with colocated transceivers. Synchronization readiness is asserted and the access points wait for a synchronization start signal's assertion. Methods of operating an access point, its implementation as a chip are further disclosed. An access point assembly including the access points and a synchronization circuit are also disclosed.

摘要翻译： 使用具有与具有共同定位的收发器的多信道介质的自适应时分多址方案的无线通信协议兼容的收发器来启动和同步有线通信电路中的多个接入点。 同步准备就绪，接入点等待同步启动信号的断言。 操作接入点的方法，其作为芯片的实现被进一步公开。 还公开了包括接入点和同步电路的接入点组件。

公开(公告)号：US07190727B1

公开(公告)日：2007-03-13

申请号：US09627572

申请日：2000-07-28

申请人： Haixiang Liang

发明人： Haixiang Liang

IPC分类号： H04B1/00 ,  H04B14/04

CPC分类号： H04L25/4927

摘要： An impairment compensation sequence for use in a communications system susceptible to one or more potential impairments each periodic in an integer number of symbols includes N phases, wherein N is selected such that each potential impairment, if present, is periodic therein, and a sequence of symbols, the sequence organized to place at least one instance of each symbol from a predetermined set of symbols in each phase to allow detection of the potential impairments in each of the N phases. The potential impairments may include robbed-bit signaling and padding. Using estimates prepared based on such an impairment compensation sequence, individual phase intervals may be grouped according to similarity of apparent aggregate effect of the impairments thereon without identification of individual impairments active in the particular phases. Constellation points may then be assigned based on group characteristics corresponding to phase intervals. In an exemplary realization, constellation points are assigned for each of 6 constellation indices based on amplitude estimates characteristic of the groups with which each of 4 corresponding phase intervals are associated.

摘要翻译： 用于易受一个或多个潜在损伤的通信系统中的损害补偿序列，每个周期性的整数个符号包括N个相，其中选择N，使得每个潜在的损害（如果存在）在其中是周期性的，以及序列 符号，所述序列被组织以在每个相位中放置来自预定符号集合的每个符号的至少一个实例，以允许检测N个相中的每一个中的潜在损伤。 潜在的损害可能包括抢占信令和填充。 使用基于这样的损伤补偿顺序准备的估计，可以根据其上的损伤的表观总效应的相似度对各个相位间隔进行分组，而不识别在特定阶段中有活性的个体损伤。 然后可以基于对应于相位间隔的组特征来分配星座点。 在示例性实现中，基于与4个对应的相位间隔相关联的组的振幅估计特征，为6个星座索引中的每一个分配星座点。

公开(公告)号：US07076034B2

公开(公告)日：2006-07-11

申请号：US10795920

申请日：2004-03-08

申请人： Haixiang Liang ,  Zarko Draganic

发明人： Haixiang Liang ,  Zarko Draganic

IPC分类号： H04M11/00

CPC分类号： H04M11/06 ,  H04M3/4281

摘要： Reliable detection of a call-waiting tone is provided by employing a correlation based technique. A modem or other device employing such a technique need not rely on carrier drop detection and is generally insensitive to other energy or noise on the line.

摘要翻译： 通过采用基于相关的技术提供呼叫等待音的可靠检测。 使用这种技术的调制解调器或其他设备不需要依赖于载波丢失检测，并且通常对线路上的其他能量或噪声不敏感。

公开(公告)号：US06333974B1

公开(公告)日：2001-12-25

申请号：US09084674

申请日：1998-05-26

申请人： Haixiang Liang ,  Zarko Draganic

发明人： Haixiang Liang ,  Zarko Draganic

IPC分类号： H04M1100

CPC分类号： H04M11/06 ,  H04M3/4281

摘要： Reliable detection of a call-waiting tone is provided by employing a correlation based technique. A modem or other device employing such a technique need not rely on carrier drop detection and is generally insensitive to other energy or noise on the line.

摘要翻译： 通过采用基于相关的技术提供呼叫等待音的可靠检测。 使用这种技术的调制解调器或其他设备不需要依赖于载波丢失检测，并且通常对线路上的其他能量或噪声不敏感。

公开(公告)号：US06209013B1

公开(公告)日：2001-03-27

申请号：US09460262

申请日：1999-12-13

申请人： Mark Gonikberg ,  Haixiang Liang

发明人： Mark Gonikberg ,  Haixiang Liang

IPC分类号： G06F1710

CPC分类号： H03H17/06

摘要： A Finite Impulse Response (FIR) filter is implemented in software on a general purpose processor in a manner which reduces the number of memory accesses as compared to conventional methods. In particular, an efficient implementation for a general purpose processor having a substantial number of registers includes inner and outer loop code which together make K ⁡ [ ( L 1 + L 2 L 1 ⁢ L 2 ) ⁢ N + L 2 L 1 + 1 ] memory accesses and KN multiply-accumulates, where L1 is the number of output vector elements computed during each pass through the outer loop and where L2 is the number of taps per output vector element computed during each pass through the inner loop. The efficient implementation exploits L1+2L2 general purpose registers. For an embodiment in which L1=L2=8, inner and outer loop code make K ⁡ ( N 4 + 2 ) memory accesses, which for filter implementations with large numbers of taps, approaches a 4× reduction in the number of memory accesses as compared to conventional methods.

摘要翻译： 有限脉冲响应（FIR）滤波器在通用处理器的软件中以与常规方法相比减少存储器访问次数的方式实现。 特别地，对于具有大量寄存器的通用处理器的有效实现包括内部和外部循环代码，它们一起进行存储访问并且KN进行乘法累加，其中L1是在每次通过外部循环期间计算的输出向量元素的数量 并且其中L2是在每次通过内循环期间计算的每个输出向量元素的抽头数。 高效实现利用L1 + 2L2通用寄存器。 对于其中L1 = L2 = 8的实施例，与常规方法相比，用于具有大量抽头的滤波器实现的内部和外部循环码存储器访问接近存储器访问数量的4倍减少。

公开(公告)号：US08842991B2

公开(公告)日：2014-09-23

申请号：US13535581

申请日：2012-06-28

申请人： Haixiang Liang ,  Liming Fang ,  Jim Chen ,  Hesham El Bakoury

发明人： Haixiang Liang ,  Liming Fang ,  Jim Chen ,  Hesham El Bakoury

IPC分类号： H04B10/00 ,  H04Q11/00 ,  H04L12/28

CPC分类号： H04Q11/0067 ,  H04L12/2801 ,  H04Q11/0071 ,  H04Q2011/0079

摘要： A method in a network device for providing end-to-end connection in a unified optical and coax network, comprising receiving at an integrated node device (IND) a frame from an optical line terminal (OLT), wherein the frame comprises a data frame and a logical link identifier (LLID), and placing the data in a one of a plurality of buffers based on the LLID, wherein the one of the plurality of buffers corresponds to a customer premises equipment (CPE) associated with the LLID, wherein the data frame stays intact in a media access control (MAC) layer.

摘要翻译： 一种网络设备中的方法，用于在统一的光学和同轴电缆网络中提供端到端连接，包括在集成节点设备（IND）处接收来自光线路终端（OLT）的帧，其中所述帧包括数据帧 以及逻辑链路标识符（LLID），以及基于所述LLID将所述数据放置在多个缓冲器中的一个缓冲器中，其中所述多个缓冲器中的一个对应于与所述LLID相关联的客户驻地设备（CPE），其中 数据帧在媒体访问控制（MAC）层中保持不变。

公开(公告)号：US07593476B2

公开(公告)日：2009-09-22

申请号：US11416541

申请日：2006-05-03

申请人： Arthur J. Carlson ,  Haixiang Liang

发明人： Arthur J. Carlson ,  Haixiang Liang

IPC分类号： H04L72/04 ,  H04K1/00

CPC分类号： H04L25/03828

摘要： In a data communication system, a transmitter of a modem, for example, uses a single scrambler to operate in a data communication mode and in a non-data mode. During the data communication mode the scrambler is used to scramble data for communication by the transmitter. During the non-data mode, the scrambler is used to generate a non-data mode signal for communication by the scrambler. The modem may be an ADSL modem, for example, in which case the data communication mode is SHOWTIME while the non-data mode may be Q-mode.

公开(公告)号：US20070121755A1

公开(公告)日：2007-05-31

申请号：US11416541

申请日：2006-05-03

申请人： Arthur Carlson ,  Haixiang Liang

发明人： Arthur Carlson ,  Haixiang Liang

IPC分类号： H04L27/00

CPC分类号： H04L25/03828

摘要： In a data communication system, a transmitter of a modem, for example, uses a single scrambler to operate in a data communication mode and in a non-data mode. During the data communication mode the scrambler is used to scramble data for communication by the transmitter. During the non-data mode, the scrambler is used to generate a non-data mode signal for communication by the scrambler. The modem may be an ADSL modem, for example, in which case the data communication mode is SHOWTIME while the non-data mode may be Q-mode.

摘要翻译： 在数据通信系统中，调制解调器的发射机例如使用单个扰频器在数据通信模式和非数据模式下操作。 在数据通信模式期间，扰频器用于加扰发送器进行通信的数据。 在非数据模式期间，加扰器用于产生非数据模式信号以供加扰器进行通信。 调制解调器可以是ADSL调制解调器，例如，在这种情况下，数据通信模式是SHOWTIME，而非数据模式可以是Q模式。