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1.发明授权公开(公告)号：US07433365B1
公开(公告)日：2008-10-07
申请号：US10930101
申请日：2004-08-31
申请人： Richard A. Burch , Neil M. Jensen , Dennis B. McMahan , Timothy David Rochell , Robert James Toth
发明人： Richard A. Burch , Neil M. Jensen , Dennis B. McMahan , Timothy David Rochell , Robert James Toth
IPC分类号： H04J3/16
CPC分类号： H04L12/5601 , H04L49/45 , H04L2012/5606 , H04L2012/5614 , H04L2012/5658 , H04L2012/5679
摘要： A single switch fabric-based, multi-channel bank digital subscriber line access multiplexer includes a master channel bank containing a master switch module in which the switch fabric and a downstream-directed traffic scheduler reside, and one or more expansion channel banks that are linked with the master channel bank by way of upstream and downstream communication links. Distributed among the channel banks are respective policing mechanisms and cell rate control mechanisms that control upstream-directed communications from line card ports of each expansion channel bank to the switch fabric. Downstream data transmissions are locked to network timing, and are scheduled by a centralized scheduling mechanism resident in the master channel bank.
摘要翻译： 单个基于交换结构的多通道银行数字用户线路接入复用器包括主信道组，其包含主交换机模块，交换结构和下游定向业务调度器驻留在主交换机模块中，以及连接的一个或多个扩展信道组 主通道银行通过上下游通信链路。 在信道组之间分布的是相应的监管机制和信元速率控制机制，其控制从每个扩展信道组的线路卡端口到交换结构的上行通信。 下行数据传输被锁定到网络定时，并且由驻留在主信道库中的集中式调度机制调度。
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公开(公告)号：US06608840B2
公开(公告)日：2003-08-19
申请号：US10131654
申请日：2002-04-24
IPC分类号： H04J316
CPC分类号： H04L25/4917 , H04L25/03343 , H04L25/497 , H04L25/4975 , H04Q11/0435 , H04Q11/0471 , H04Q2213/1303 , H04Q2213/13034 , H04Q2213/13094 , H04Q2213/1319 , H04Q2213/13199 , H04Q2213/13209 , H04Q2213/13216 , H04Q2213/13322
摘要： The range of digital data communication services, such as a basic rate 2B1Q ISDN channel, to customer premises located beyond the industry standard achievable range of a two-wire loop can be extended by increasing the capacity of the ISDN line code from two information bits per symbol to three information bits per symbol, so as to reduce the effective symbol rate, which is error correction encoded to an effective 4B1H line code for defining a sixteen level PAM signal waveform, and employing enhanced low signal-to-noise ratio signal processing techniques in both the transmitter and receiver to accommodate the increased insertion loss of the two-wire line resulting from its extended length. Such enhanced low signal-to-noise ratio signal processing techniques include a Tomlinson precoder in the transmitter, and an adaptive linear equalizer and a module unit in the receiver.
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公开(公告)号：US6041483A
公开(公告)日：2000-03-28
申请号：US856984
申请日：1997-05-15
申请人： Richard A. Burch
发明人： Richard A. Burch
CPC分类号： A61G17/08 , A61G17/0073 , A61G2203/90
摘要： A funerary urn comprises a top, a bottom and side walls connecting the side and bottom. The urn has an open area within a first storage space, the opening having a volume of between 0.25 and 2.5 cubic feet being defined by the top, bottom and side walls. The top, bottom and side walls have openings therein which allow passage of water into the storage space and allow air to pass out of the storage space. The urn, when it contains the ashes of a cremated animal and then immersed in water will attain a specific gravity of greater than 1.0 within three minutes. At least 80% by weight of the top, bottom and side walls consist essentially of materials which would decompose, degrade, dissolve or disperse in water so that the urn will lose its structural integrity within twelve months of continued immersion in water at 20.degree. C.
摘要翻译： 殡葬缸包括连接侧面和底部的顶部，底部和侧壁。 所述瓮在第一储存空间内具有开放区域，所述开口具有0.25至2.5立方英尺之间的体积，由所述顶部，底部和侧壁限定。 顶部，底部和侧壁在其中具有开口，允许水进入储存空间并允许空气从储存空间中流出。 瓮当含有火化动物的灰分然后浸入水中时，在3分钟内将达到大于1.0的比重。 顶部，底部和侧壁的至少80重量％基本上由分解，降解，溶解或分散在水中的材料组成，使得在连续浸入20℃的水中的十二个月内，该罐将失去其结构完整性 。
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公开(公告)号：US5999542A
公开(公告)日：1999-12-07
申请号：US133061
申请日：1998-08-12
IPC分类号： H04L25/03 , H04L25/49 , H04L25/497 , H04Q11/04 , H04J1/00
CPC分类号： H04L25/4917 , H04L25/03343 , H04L25/497 , H04L25/4975 , H04Q11/0435 , H04Q11/0471 , H04Q2213/1303 , H04Q2213/13034 , H04Q2213/13094 , H04Q2213/1319 , H04Q2213/13199 , H04Q2213/13209 , H04Q2213/13216 , H04Q2213/13322
摘要： The range of digital data communication services, such as a basic rate 2B1Q ISDN channel, to customer premises located beyond the industry standard achievable range of a two-wire loop can be extended by increasing the capacity of the ISDN line code from two information bits per symbol to three information bits per symbol, so as to reduce the effective symbol rate, which is error correction encoded to an effective 4B1H line code for defining a sixteen level PAM signal waveform, and employing enhanced low signal-to-noise ratio signal processing techniques in both the transmitter and receiver to accommodate the increased insertion loss of the two-wire line resulting from its extended length. Such enhanced low signal-to-noise ratio signal processing techniques include a Tomlinson precoder in the transmitter, and an adaptive linear equalizer and a module unit in the receiver.
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公开(公告)号：US5809033A
公开(公告)日：1998-09-15
申请号：US560812
申请日：1995-11-20
IPC分类号： H04L25/03 , H04L25/49 , H04L25/497 , H04Q11/04 , H04J3/12
CPC分类号： H04L25/4917 , H04L25/03343 , H04L25/497 , H04L25/4975 , H04Q11/0435 , H04Q11/0471 , H04Q2213/1303 , H04Q2213/13034 , H04Q2213/13094 , H04Q2213/1319 , H04Q2213/13199 , H04Q2213/13209 , H04Q2213/13216 , H04Q2213/13322
摘要： The range of digital data communication services, such as a basic rate 2B1Q ISDN channel, to customer premises located beyond the industry standard achievable range of a two-wire loop can be extended by increasing the capacity of the ISDN line code from two information bits per symbol to three information bits per symbol, so as to reduce the effective symbol rate, which is error correction encoded to an effective 4B1H line code for defining a sixteen level PAM signal waveform, and employing enhanced low signal-to-noise ratio signal processing techniques in both the transmitter and receiver to accommodate the increased insertion loss of the two-wire line resulting from its extended length. Such enhanced low signal-to-noise ratio signal processing techniques include a Tomlinson precoder in the transmitter, and an adaptive linear equalizer and a module unit in the receiver.
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6.发明授权Method and apparatus for reducing waiting time jitter in pulse stuffing synchronized digital communications 失效减少脉冲填充同步数字通信中等待时间抖动的方法和装置
公开(公告)号：US5680422A
公开(公告)日：1997-10-21
申请号：US429951
申请日：1995-04-27
CPC分类号： H04J3/073
摘要： A wander reduction mechanism in an HDSL pulse-stuffing synchronization system provides a more precise measure of the phase of the incoming asynchronous signal than is obtained in conventional schemes, in which the only information available is the presence or absence of stuffing pulses. An auxiliary phase comparator and phase adjuster are incorporated into the synchronizer-multiplexer to generate a reference data clock (derived from the synchronized data clock), so that the incoming unsynchronized data clock can be tracked. As the clock is iteratively phase-adjusted, the respective changes are accumulated. At the end of a prescribed measurement interval, the net contents of the accumulator are encoded and transported over the synchronous digital data communication channel to the receiver. By decoding this sequence information, the desynchronizer is able to generate a desynchronized data clock having the same number of net phase adjustments during a measurement period as the reference clock at the synchronizer.
摘要翻译： 在HDSL脉冲填充同步系统中的漫游减少机制提供了比传统方案中获得的输入异步信号的相位更精确的测量，其中唯一可用的信息是填充脉冲的存在或不存在。 辅助相位比较器和相位调节器被并入到同步器多路复用器中以产生参考数据时钟（从同步数据时钟导出），使得可以跟踪输入的不同步的数据时钟。 随着时钟被迭代地相位调整，各个变化被累积。 在规定的测量间隔结束时，累加器的净内容被编码并通过同步数字数据通信信道传送到接收机。 通过对该序列信息进行解码，去同步器能够在测量周期期间产生具有相同数量的净相位调整的去同步数据时钟作为同步器处的参考时钟。
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公开(公告)号：US4805191A
公开(公告)日：1989-02-14
申请号：US125312
申请日：1987-11-25
申请人： Richard A. Burch , Dennis B. McMahan , Harry Yedid
发明人： Richard A. Burch , Dennis B. McMahan , Harry Yedid
CPC分类号： H04L7/0054
摘要： In a digital data receiver, it is desirable to use the equalized data for deriving time synchronization information. This invention minimizes timing contention between an equalizer operating at a T/2 rate and a timing recovery circuit which utilizes the output of the equalizer. An interpolator interpolates T1 and T2 data samples from the equalizer and provides data signals R and S equally spaced relative to the peak baud amplitude which can be easily processed by the timing recovery circuit.
摘要翻译： 在数字数据接收机中，期望使用均衡数据来导出时间同步信息。 本发明使得以T / 2速率工作的均衡器和利用均衡器的输出的定时恢复电路之间的定时争用最小化。 内插器从均衡器插入T1和T2数据样本，并提供相对于峰值波特率等距间隔的数据信号R和S，这可以由定时恢复电路容易地处理。
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8.发明授权Primary channel bank-resident mechanism for scheduling downstream data transmissions to ports of multiple channel banks 有权主要渠道银行驻留机制，用于调度到多个信道银行的端口的下行数据传输公开(公告)号：US07515591B1
公开(公告)日：2009-04-07
申请号：US10930095
申请日：2004-08-31
IPC分类号： H04L12/28
CPC分类号： H04L49/254 , H04L49/90 , H04L2012/5679
摘要： A data transmission scheduler subsystem for a multi-channel bank communication system architecture contains a plurality of ‘per port’ schedulers. Each per port scheduler is resident in the system's primary channel bank, and is operative to controllably cause customer-destined data, that has been buffered from a communication network into switch fabric storage circuitry of the primary channel bank, to be controllably read out for downlink transmission to associated destination data ports of the channel banks at the destination data ports' data rates.
摘要翻译： 用于多通道银行通信系统架构的数据传输调度器子系统包含多个“每端口”调度器。 每个端口调度器驻留在系统的主信道组中，并且可操作地将已经从通信网络缓存的客户目的地的数据导入到主信道组的交换结构存储电路中，以被可控地读出用于下行链路 以目的地数据端口的数据速率传输到信道组的相关联的目的地数据端口。
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9.发明授权Policing engine providing dynamic adjustment of peak and sustained data cell rates and efficient transfer of AAL5 cells 有权监管引擎提供峰值和持续数据信元速率的动态调整和AAL5细胞的有效转移公开(公告)号：US07477596B1
公开(公告)日：2009-01-13
申请号：US10930086
申请日：2004-08-31
IPC分类号： H04J1/16
CPC分类号： H04L12/5601
摘要： A policing engine for use in a telecommunication equipment shelf is operative to control the rate at which customer-sourced ATM packets are passed to buffers associated with different classes of service to which customers may subscribe. The policing engine examines the rate at which ATM cells are supplied to it from the line card ports, whether the cells are AAL5 cells, and how full are the buffers into which the cells are to be written. If cells are supplied to the policing engine at a rate faster than prescribed peak or sustained cell rates, or if the cell buffer begins to fill up, the policing engine controllably discards incoming cells, thereby effectively ‘throttling’ the cell flow rate through it.
摘要翻译： 在电信设备机架中使用的监管引擎可操作以控制客户来源的ATM分组被传递到与客户可以订阅的不同服务等级相关联的缓冲器的速率。 监管引擎检查ATM单元从线卡端口提供给它的速率，单元格是否为AAL5单元，以及单元格要写入的缓冲区的满载程度。 如果细胞以比规定的峰值或持续细胞速率更快的速率提供给治疗引擎，或者如果细胞缓冲液开始填满，则监管引擎可控制地丢弃进入的细胞，从而有效地“调节”细胞流量。
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10.发明授权System, device and method for detecting and characterizing impairments in a communication network 失效用于检测和表征通信网络中的损伤的系统，装置和方法
公开(公告)号：US6108354A
公开(公告)日：2000-08-22
申请号：US885710
申请日：1997-06-30
摘要： A device system and method of detecting impairments in a communication network, involving: receiving during a plurality of time intervals equalized training signals which are produced from training symbols that have been transmitted over the network and equalized; generating reference symbols corresponding to the training symbols and equalized training signals; indexing the equalized training signals by their time intervals and corresponding reference symbols; calculating errors due to impairments from the indexed, equalized training signals; and detecting impairments in the network from the calculated impairment errors.
摘要翻译： 一种用于检测通信网络中的损伤的设备系统和方法，包括：在多个时间间隔期间接收均衡的训练信号，所述训练信号是通过网络传输的均衡的训练符号产生的; 产生对应于训练符号和均衡训练信号的参考符号; 通过其均衡的训练信号的时间间隔和对应的参考符号来索引均衡的训练信号; 计算由索引的均衡训练信号引起的损伤的误差; 以及从所计算的损伤误差检测网络中的损伤。
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