公开(公告)号：US06694104B1

公开(公告)日：2004-02-17

申请号：US09261628

申请日：1999-03-03

申请人： David O. Caplan ,  Mark L. Stevens ,  Don M. Boroson

发明人： David O. Caplan ,  Mark L. Stevens ,  Don M. Boroson

IPC分类号： H04B1004

CPC分类号： H04L1/0002 ,  H04B10/505

摘要： A variable-bit-rate communication system is described. The communication system includes a variable-bit-rate transmitter that generates digital data at a first or a second bit rate and a variable-bit-rate receiver that receives the digital data. The digital data comprises a sequence of signaling waveforms having a first or a second duty cycle, respectively, wherein each signaling waveform has the same shape.

摘要翻译： 描述了可变比特率通信系统。 通信系统包括以第一或第二比特率生成数字数据的可变比特率发射机和接收数字数据的可变比特率接收机。 数字数据包括分别具有第一或第二占空比的信令波形序列，其中每个信令波形具有相同的形状。

公开(公告)号：US20100111540A1

公开(公告)日：2010-05-06

申请号：US12532560

申请日：2008-03-24

申请人： David O. Caplan ,  Mark L. Stevens

发明人： David O. Caplan ,  Mark L. Stevens

IPC分类号： H04B10/00 ,  H04L27/22 ,  H04B10/06

CPC分类号： H04B10/677

摘要： A filter-based method of demodulating differentially encoded phase shift keyed (DPSK) optical signals, such as commonly used binary-DPSK (DBDPSK) and quadrature DPSK (DQPSK) signals, that can achieve optimal receiver sensitivity is described. This approach, which combines filtering and differential phase comparison, can reduce the complexity and cost of DPSK receivers by obviating delay-line interferometer-based demodulation. This can improve receiver stability and reduce size, weight, and power, while maintaining the ability to achieve optimal communications performance.

摘要翻译： 描述了一种基于滤波器的解调差分编码的相移键控（DPSK）光信号，例如可以实现最佳接收机灵敏度的常用二进制DPSK（DBDPSK）和正交DPSK（DQPSK）信号。 这种组合滤波和差分相位比较的方法可以通过消除基于延迟线干涉仪的解调来降低DPSK接收机的复杂性和成本。 这可以提高接收机的稳定性并减小尺寸，重量和功率，同时保持实现最佳通信性能的能力。

公开(公告)号：US08503889B2

公开(公告)日：2013-08-06

申请号：US12532560

申请日：2008-03-24

申请人： David O. Caplan ,  Mark L. Stevens

发明人： David O. Caplan ,  Mark L. Stevens

IPC分类号： H04B10/06 ,  H04B10/12 ,  H04J14/02

CPC分类号： H04B10/677

摘要： A filter-based method of demodulating differentially encoded phase shift keyed (DPSK) optical signals, such as commonly used binary-DPSK (DBDPSK) and quadrature DPSK (DQPSK) signals, that can achieve optimal receiver sensitivity is described. This approach, which combines filtering and differential phase comparison, can reduce the complexity and cost of DPSK receivers by obviating delay-line interferometer-based demodulation. This can improve receiver stability and reduce size, weight, and power, while maintaining the ability to achieve optimal communications performance.

摘要翻译： 描述了一种基于滤波器的解调差分编码的相移键控（DPSK）光信号，例如可以实现最佳接收机灵敏度的常用二进制DPSK（DBDPSK）和正交DPSK（DQPSK）信号。 这种组合滤波和差分相位比较的方法可以通过消除基于延迟线干涉仪的解调来降低DPSK接收机的复杂性和成本。 这可以提高接收机的稳定性并减小尺寸，重量和功率，同时保持实现最佳通信性能的能力。

公开(公告)号：US06539425B1

公开(公告)日：2003-03-25

申请号：US09349272

申请日：1999-07-07

申请人： Mark L. Stevens ,  Walter Johan Weiss

发明人： Mark L. Stevens ,  Walter Johan Weiss

IPC分类号： G06F1300

CPC分类号： H04L61/1523 ,  H04L41/0213 ,  H04L41/0681 ,  H04L41/082 ,  H04L41/0836 ,  H04L41/0856 ,  H04L41/0893

摘要： Simple and complex policy mechanisms for policy-enabled advantageously comprise a Data Access Client Module (DACM) and Policy Interpreter and Processor (PIP) for establishing data paths between a network device and data stores containing device configuration information, and simple policy definitions, e.g., filter tables, and complex policy expressions. A uniform distributed data model provides device state information and policy information to be efficiently retrieved from virtually all network devices rather than solely from directory server(s). Using a registration and notification system, data elements (e.g., directory subtrees or executable modules) are associated with a particular owner network device and other network devices requiring access to data elements to derive needed state information for taking network policy actions. A data element is provided via messages sent to a target network device upon the occurrence of a relevant event (e.g., exceeding a prescribed bandwidth allocation or congestion level).

摘要翻译： 用于策略的简单和复杂的策略机制有利地包括用于在网络设备和包含设备配置信息的数据存储之间建立数据路径的数据访问客户端模块（DACM）和策略解释器和处理器（PIP），以及简单的策略定义， 过滤表和复杂的策略表达式。 统一的分布式数据模型提供设备状态信息和策略信息，从几乎所有的网络设备而不是仅仅从目录服务器有效地检索。 使用注册和通知系统，数据元素（例如，目录子树或可执行模块）与特定所有者网络设备和需要访问数据元素的其他网络设备相关联以导出用于采取网络策略动作的所需状态信息。 在发生相关事件（例如，超过规定的带宽分配或拥塞水平）时，通过发送到目标网络设备的消息来提供数据元素。