Call data and hardware cache for a dial-up access concentrator
    91.
    发明申请
    Call data and hardware cache for a dial-up access concentrator 有权
    为拨号接入集中器调用数据和硬件缓存

    公开(公告)号:US20030035418A1

    公开(公告)日:2003-02-20

    申请号:US09894797

    申请日:2001-06-28

    Abstract: The call data and hardware cache for a dial-up access concentrators caches the hardware device setup and the communication connection data created for a call connection for use in the next successively received incoming call. The call data and hardware cache for dial-up access concentrators enables the existing physical hardware connection that comprises the call connection in the dial-up access concentrator, the call processing and call connection resources to remain available for use in the next successively received incoming call. This step also retains the communication connection data comprising the call setup and call management data in the shelf controller and the call processing data in the call signal processor card for possible reuse. If the next received incoming call is substantially similar in characteristics to the last terminated call, then the existing nullon-holdnull signal processing card and shelf controller data as well as the TDM connections therebetween can be reused with minor modifications to serve the incoming call. This reduces the time required to setup a communication connection for the received call and reduces the need for CPU resources.

    Abstract translation: 用于拨号接入集线器的呼叫数据和硬件高速缓存缓存为呼叫连接而创建的硬件设备设置和通信连接数据,以供下次连续接收的来电使用。 用于拨号接入集中器的呼叫数据和硬件高速缓存使得包括拨号接入集中器中的呼叫连接的现有物理硬件连接,呼叫处理和呼叫连接资源保持可用于下次连续接收的来电 。 该步骤还保留包括货架控制器中的呼叫建立和呼叫管理数据以及呼叫信号处理器卡中的呼叫处理数据的通信连接数据,以便可重用。 如果下一个接收到的来电在特性上与最后终止的呼叫基本相似,那么现有的“保持”信号处理卡和货架控制器数据以及它们之间的TDM连接可以重复使用,同时进行微小的修改以便为来电提供服务 。 这减少了为接收到的呼叫建立通信连接所需的时间,并减少了对CPU资源的需求。

    Digital carrierless amplitude and phase modulation (CAP) transmitter using vector arithmetic structure (VAS)
    92.
    发明申请
    Digital carrierless amplitude and phase modulation (CAP) transmitter using vector arithmetic structure (VAS) 有权
    使用矢量算术结构(VAS)的数字无载波幅度和相位调制(CAP)发射机

    公开(公告)号:US20020181602A1

    公开(公告)日:2002-12-05

    申请号:US09874876

    申请日:2001-06-05

    Inventor: Ajit Kumar Reddy

    CPC classification number: H04L25/4921

    Abstract: A method and apparatus for carrierless amplitude and phase CAP encoding of data in a manner avoiding the use of pulse shaping filters for in-phase and quadrature impulse signals. Specifically, in-phase and quadrature vector arithmetic structures (VAS) to adapt respective in-phase and quadrature impulse components to produce appropriate shaped in-phase and quadrature components.

    Abstract translation: 一种用于以避免对同相和正交脉冲信号使用脉冲整形滤波器的方式进行无载波幅度和相位CAP编码的方法和装置。 具体地,用于适应相应的同相和正交脉冲分量以产生适当的成形同相和正交分量的同相和正交矢量运算结构(VAS)。

    Trans-admittance trans-impedance logic for integrated circuits
    93.
    发明申请
    Trans-admittance trans-impedance logic for integrated circuits 有权
    用于集成电路的跨导纳跨阻抗逻辑

    公开(公告)号:US20020163374A1

    公开(公告)日:2002-11-07

    申请号:US10033525

    申请日:2001-12-28

    CPC classification number: H03K3/0231

    Abstract: A logic circuit with improved performance when operating at the limits of the transistor's bandwidth. In particular, a latch includes a clocked trans-admittance stage circuit for receiving a voltage and producing a current output, and an active load, such as a trans-impedance stage circuit, connected to receive as input the current output of the trans-admittance stage circuit and produce a voltage output. Two independent trans-admittance and trans-impedance stages may be combined as a single latch pair. One or more latch pairs may be arranged in series as a cascaded chain and connected to the output current of a clocked trans-admittance stage latch.

    Abstract translation: 在晶体管带宽限制下工作时,具有改进性能的逻辑电路。 特别地,锁存器包括用于接收电压并产生电流输出的时钟导纳级电路,以及有源负载(例如跨阻抗级电路),其连接以接收作为输入的反向导纳的电流输出 并产生电压输出。 两个独立的跨导纳和跨阻抗级可以组合为单个锁存器对。 一个或多个锁存器对可以串联布置为级联链并连接到时钟导通级锁存器的输出电流。

    Resource usage measurement technique for pricing in a communications network
    95.
    发明申请
    Resource usage measurement technique for pricing in a communications network 有权
    用于通信网络定价的资源使用测量技术

    公开(公告)号:US20020150054A1

    公开(公告)日:2002-10-17

    申请号:US10115519

    申请日:2002-04-02

    CPC classification number: H04L12/1403 H04L12/14 H04L41/00 H04L43/00 H04L43/024

    Abstract: A method and apparatus are disclosed for measuring the usage of a communications network, based on a two level sampling and measuring technique. A sampling interval, T, represents the intervals at which the network resource is observed. In addition, during each sampling interval, a measurement window of length, null, is utilized. Generally, while the values for the sampling interval, T, and the measurement window, null, are calibrated, actual measurements are only taken for the smaller measurement window, null, and the actual measurements are extrapolated to estimate the usage over the larger sampling interval, T. The sampling interval, T, and measurement window, null, values may be periodically recalibrated. An extrapolation process consists of two phases: (i) a nulllearning periodnull (LP) during which both exact and extrapolated measurements are performed, the error is determined, and, if necessary, adjustments are made to the values of the sampling interval, T, and the measurement window, null; and (ii) a nullmeasurement and extrapolation periodnull (MEP) during which only measurements during the sampling interval, T, continue and the sampled measurements are extrapolated without performing the exact measurements. Several learning periods, LPs, may be interleaved during a communication session with larger measurement and extrapolation period, MEP, intervals.

    Abstract translation: 公开了一种基于两级采样和测量技术来测量通信网络的使用的方法和装置。 采样间隔T表示观察网络资源的间隔。 另外,在每个采样间隔期间,使用长度为&tgr的测量窗口。 通常,当采样间隔T和测量窗口&tgr的值被校准时,仅对较小的测量窗口&tgr进行实际测量,并且外推实际测量以估计较大的测量窗口 采样间隔,T。采样间隔,测量窗口和测量窗口值可以定期重新校准。 外推过程由两个阶段组成:(i)“学习期”(LP),在此期间执行精确和外推测量,确定误差,如有必要,对采样间隔的值进行调整, T和测量窗口,&tgr ;; 和(ii)“测量和外推周期”(MEP),在此期间仅在采样间隔期间的测量T,继续和采样测量被外推,而不进行精确测量。 在具有较大测量和外推周期(MEP)间隔的通信会话期间,可能会交织几个学习周期LP。

    Optical pulse source for long haul optical communication systems
    96.
    发明申请
    Optical pulse source for long haul optical communication systems 失效
    用于长距离光通信系统的光脉冲源

    公开(公告)号:US20020131470A1

    公开(公告)日:2002-09-19

    申请号:US10084788

    申请日:2002-02-26

    CPC classification number: H04B10/508 H04B10/504 H04B10/572

    Abstract: In accordance with the invention, a modulated RZ pulse source comprises a modulated light source optically coupled to a stabilized Bragg grating filter and one or more optical taps. The light source is preferably modulated in power and frequency and has an adjustable channel wavelength null. The Bragg grating filter has a reflectivity bandwidth having a high slope reflectivity cutoff and is preferably tunable. A feedback arrangement responsive to the taps keeps the source channel wavelength null on the edge of the reflectivity bandwidth for shaping RZ pulses. When the Bragg grating is stabilized, the feedback system maintains null at a value linked to the grating reflectivity edge and, by overlapping at least part of the optical spectrum of the source, converts the modulated source light into RZ pulses with high extinction ratio (null12 dB). The result is a high power, jitter-free RZ pulse source that is compact, inexpensive and power efficient.

    Abstract translation: 根据本发明,调制的RZ脉冲源包括光耦合到稳定的布拉格光栅滤波器和一个或多个光学抽头的调制光源。 光源优选地在功率和频率上进行调制,并且具有可调节的通道波长长度。 布拉格光栅滤波器具有高斜率反射截止的反射带宽,并且优选是可调谐的。 响应于抽头的反馈装置将源通道波长保持在反射带宽的边缘,以形成RZ脉冲。 当布拉格光栅稳定时,反馈系统将羔羊保持在与光栅反射率边缘相连的值,并且通过重叠源的光谱的至少一部分,将调制的源光转换成具有高消光比的RZ脉冲(> = 12dB)。 结果是高功率,无抖动的RZ脉冲源,紧凑,价格低廉,功率高。

    Head of line blockage avoidance system and method of operation thereof
    97.
    发明申请
    Head of line blockage avoidance system and method of operation thereof 有权
    线路阻塞避免系统的主管及其操作方法

    公开(公告)号:US20020101876A1

    公开(公告)日:2002-08-01

    申请号:US10044765

    申请日:2002-01-09

    Inventor: David P. Sonnier

    Abstract: A head of line blockage avoidance system for use with network systems that employ packets having an associated priority and a method of operation thereof. In one embodiment, the head of line blockage avoidance system includes: (1) m inputs, m numbering at least two, configured to receive the packets, (2) n packet first-in-first-out buffers (FIFOs), n numbering at least three, each of the packet FIFOs configured to receive at least one of the packets from the m inputs, (3) a priority summarizer configured to generate a priority summary of the packets within the m inputs and the n packet FIFOs, and (4) a scheduler configured to cause one of the n packet FIFOs to be queued for processing based on the priority summary.

    Abstract translation: 与采用具有相关联优先级的分组的网络系统一起使用的线路阻塞避免系统的头部及其操作方法。 在一个实施例中,线路阻塞避免系统的头部包括:(1)m个输入,m个编号至少两个,被配置为接收分组,(2)n个分组先进先出缓冲器(FIFO),n个编号 至少三个,每个分组FIFO被配置为从m个输入接收至少一个分组,(3)优先级汇总器,被配置为生成m个输入和n个分组FIFO中的分组的优先级摘要,以及( 4)调度器,其被配置为基于所述优先级摘要使所述n个分组FIFO中的一个被排队等待处理。

    Programmable RC filter
    98.
    发明申请

    公开(公告)号:US20020101280A1

    公开(公告)日:2002-08-01

    申请号:US10105450

    申请日:2002-03-26

    CPC classification number: H03H7/12

    Abstract: A programmable resistive-capacitive filter circuit enabling on-chip digital control of the frequency response includes a switched resistive type voltage divider network where one of the resistors forms an element of an RC filter and wherein the voltage divider additionally provides a DC bias on an output terminal. One preferred embodiment of the invention is directed to a programmable bandpass filter including MOSFET type semiconductor devices which are utilized as switched resistive elements of the filter.

    Retrieval and matching of color patterns based on a predetermined vocabulary and grammar
    99.
    发明申请
    Retrieval and matching of color patterns based on a predetermined vocabulary and grammar 有权
    基于预定词汇和语法的颜色模式的检索和匹配

    公开(公告)号:US20020099721A1

    公开(公告)日:2002-07-25

    申请号:US10020346

    申请日:2001-10-30

    Abstract: The invention provides a perceptually-based system for pattern retrieval and matching, suitable for use in a wide variety of information processing applications. An illustrative embodiment of the system uses a predetermined vocabulary comprising one or more dimensions to extract color and texture information from an information signal, e.g., an image, selected by a user. The system then generates a distance measure characterizing the relationship of the selected image to another image stored in a database, by applying a grammar, comprising a set of predetermined rules, to the color and texture information extracted from the selected image and corresponding color and texture information associated with the stored image. The vocabulary may include dimensions such as overall color, directionality and orientation, regularity and placement, color purity, and pattern complexity and heaviness. The rules in the grammar may include equal pattern, overall appearance, similar pattern, and dominant color and general impression, with each of the rules expressed as a logical combination of values generated for one or more of the dimensions. The distance measure may include separate color and texture metrics characterizing the similarity of the respective color and texture of the two images being compared. The invention is also applicable to other types of information signals, such as sequences of video frames.

    Abstract translation: 本发明提供了一种基于感知的用于模式检索和匹配的系统,适用于各种各样的信息处理应用。 系统的说明性实施例使用包括一个或多个维度的预定词汇表从用户选择的信息信号(例如,图像)中提取颜色和纹理信息。 然后,系统通过将包括一组预定规则的语法应用于从所选择的图像提取的颜色和纹理信息以及相应的颜色和纹理,生成表征所选图像与存储在数据库中的另一图像的关系的距离度量 与存储的图像相关联的信息。 词汇可以包括诸如整体颜色,方向性和取向,规则性和放置,颜色纯度和图案复杂性和沉重性的尺寸。 语法中的规则可以包括相等的模式,整体外观,类似的模式以及主要颜色和一般的印象,其中每个规则表示为为一个或多个维度生成的值的逻辑组合。 距离测量可以包括表征正在比较的两个图像的相应颜色和纹理的相似性的分离的颜色和纹理度量。 本发明也可应用于其他类型的信息信号,例如视频帧序列。

    Communications system and associated deskewing and word framing methods
    100.
    发明申请
    Communications system and associated deskewing and word framing methods 有权
    通信系统和相关的歪斜和字框架方法

    公开(公告)号:US20020097752A1

    公开(公告)日:2002-07-25

    申请号:US09766079

    申请日:2001-01-19

    CPC classification number: H04L25/14 H04L7/0083 H04L7/04 H04L7/10

    Abstract: A communications system includes N parallel communications channels connecting first and second devices. The N channels may include N-1 channels for carrying information symbols, and an Nth channel for facilitating deskewing and word framing. The first device may include an alignment symbol generator for generating alignment symbols on the Nth channel, and a word framing code generator for generating word framing codes on the Nth channel. The second device may include a deskewer for aligning received information symbols based upon the alignment symbols, and a word framer for determining word framing based upon the word framing codes. The word frame code generator in the first device or transmitter, and the word framer in the second device or receiver provide the desired feature of knowledge of where each word starts or begins. The start of each word may be determined in terms of a time and a corresponding one of the N-1 channels where the word starts. The word framing code generator may generate word framing codes comprising at least one predetermined word framing code. Alternately, the word framing code generator may generate word framing codes including at least one changeable word framing code based upon information symbols.

    Abstract translation: 通信系统包括连接第一和第二设备的N个并行通信信道。 N个信道可以包括用于携带信息符号的N-1个信道,以及用于促进偏斜校正和字框架的第N个信道。 第一设备可以包括用于在第N个信道上产生对齐符号的对准符号发生器,以及用于在第N个信道上产生字成帧代码的字成帧代码发生器。 第二装置可以包括用于基于对准符号对准接收到的信息符号的偏移器,以及用于基于字成帧代码确定字成帧的字成像器。 第一设备或发送器中的字代码生成器以及第二设备或接收器中的成帧器提供了每个字开始或开始的位置的所需知识特征。 可以根据时间和单词开始的N-1个频道中的相应一个来确定每个单词的开始。 单词成帧代码生成器可以生成包括至少一个预定字成帧代码的字成帧代码。 或者,字成帧代码生成器可以基于信息符号生成包括至少一个可变字成帧代码的字成帧码。

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