公开(公告)号：US20050273837A1

公开(公告)日：2005-12-08

申请号：US10909478

申请日：2004-08-02

申请人： Randy Oyadomari ,  Arthur Lawson ,  Stephen Gordy

发明人： Randy Oyadomari ,  Arthur Lawson ,  Stephen Gordy

IPC分类号： H04H1/00 ,  H04H60/13 ,  H04H60/97 ,  H04L12/28 ,  H04N7/22 ,  H04N7/173

CPC分类号： H04N7/17309 ,  H04H60/13 ,  H04H60/97 ,  H04L12/2801 ,  H04N7/22 ,  H04N21/437 ,  H04N21/6118

摘要： An optical signal return path system analog RF signals are sampled using a master clock frequency, and combined with digital data such as Ethernet data at a cable node. The cable node sends the combined signals on a return path over a fiber optic medium to the cable hub. The cable hub extracts an approximate in-frequency replicate of a master clock signal, and can use the replicate master clock signal to desample the digitized RF signals back to analog. The cable hub can further use the replicate of the master clock signal to serialize Ethernet data, and send the Ethernet data back to the cable node via an optical cable in the forward direction. Accordingly, a single master clock signal can be used on a CATV network for encoding/decoding, and transmitting a variety of data signals, which enhances the integrity and reliability of the data signals.

摘要翻译： 光信号返回路径系统模拟RF信号采用主时钟频率进行采样，并与电缆节点上的数据数据（如以太网数据）相结合。 电缆节点通过光纤介质将返回路径上的组合信号发送到电缆集线器。 电缆集线器提取主时钟信号的近似频率复制，并且可以使用复制主时钟信号将数字化的RF信号取样为模拟。 电缆集线器可以进一步使用主时钟信号的复制来串行以太网数据，并通过光缆沿正向方向将以太网数据发送回电缆节点。 因此，可以在CATV网络上使用单个主时钟信号进行编码/解码，并发送各种数据信号，这增强了数据信号的完整性和可靠性。

公开(公告)号：US20050254523A1

公开(公告)日：2005-11-17

申请号：US10845202

申请日：2004-05-12

申请人： Randy Oyadomari ,  Arthur Lawson ,  Stephen Gordy

发明人： Randy Oyadomari ,  Arthur Lawson ,  Stephen Gordy

IPC分类号： H04H20/78 ,  H04L12/28 ,  H04N7/173 ,  H04N7/22 ,  H04H1/04

CPC分类号： H04N7/17309 ,  H04H20/78 ,  H04L12/2801 ,  H04N7/22 ,  H04N21/6118 ,  H04N21/6168

摘要： A cable node and a cable hub that communicate on a CATV network are configured to switch compression modes without signal noise or degradation due to excessive delays in switching compression modes. In particular, a cable node sends one or more mute commands in an outgoing data stream to the cable hub, causing the cable hub to disable the RF outputs. Afterward, or along with the one or more mute commands, the cable node can send a switch mode command, thereby causing the cable hub to switch to the appropriate next communication mode, such as a communication mode using a new compression rate. When the cable node and the cable hub have switched to the appropriate next communication mode, the cable hub can then properly receive a corresponding data stream from the cable node using the next communication mode.

摘要翻译： 在CATV网络上通信的电缆节点和电缆集线器被配置为切换压缩模式，而不会由于切换压缩模式中的过度延迟而产生信号噪声或劣化。 特别地，电缆节点在输出数据流中发送一个或多个静音命令到电缆集线器，导致电缆集线器禁用RF输出。 之后，或者与一个或多个静音命令一起，电缆节点可以发送开关模式命令，从而使电缆集线器切换到适当的下一个通信模式，例如使用新的压缩率的通信模式。 当电缆节点和电缆集线器已经切换到适当的下一个通信模式时，电缆集线器然后可以使用下一个通信模式从电缆节点正确地接收相应的数据流。

公开(公告)号：US20050273836A1

公开(公告)日：2005-12-08

申请号：US10845006

申请日：2004-05-12

申请人： Randy Oyadomari ,  Arthur Lawson ,  Stephen Gordy

发明人： Randy Oyadomari ,  Arthur Lawson ,  Stephen Gordy

IPC分类号： H01S3/00 ,  H04B10/24 ,  H04J14/00 ,  H04L29/06 ,  H04N7/173 ,  H04N7/22

CPC分类号： H04B10/2503 ,  H04L69/08 ,  H04L69/18 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/6118 ,  H04N21/6168

摘要： A cable node and a cable hub that communicate on a CATV network are configured to switch communication modes without signal loss or degradation due to delays in switching communication modes. In particular, a cable node sends one or more mute commands in an outgoing data stream to the cable hub, causing the cable hub to disable the RF outputs. Afterward, or along with the one or more mute commands, the cable node can send a switch mode command, thereby causing the cable hub to switch to the appropriate next communication mode, such as a communication mode using a new compression rate. When the cable hub has switched to the appropriate next communication mode, the cable hub can then properly receive and decode a corresponding data stream using the next communication mode.

摘要翻译： 在CATV网络上通信的电缆节点和电缆集线器被配置为切换通信模式，而不会由于交换通信模式的延迟而导致信号丢失或劣化。 特别地，电缆节点在输出数据流中发送一个或多个静音命令到电缆集线器，导致电缆集线器禁用RF输出。 之后，或者与一个或多个静音命令一起，电缆节点可以发送开关模式命令，从而使电缆集线器切换到适当的下一个通信模式，例如使用新的压缩率的通信模式。 当电缆集线器切换到适当的下一个通信模式时，电缆集线器可以使用下一个通信模式适当地接收和解码对应的数据流。

公开(公告)号：US20050010691A1

公开(公告)日：2005-01-13

申请号：US10882711

申请日：2004-06-30

申请人： Randy Oyadomari ,  Arthur Lawson

发明人： Randy Oyadomari ,  Arthur Lawson

IPC分类号： H04B7/26 ,  H04J3/06 ,  H04L12/26 ,  G06F15/16

CPC分类号： H04B7/26 ,  H04J3/0682 ,  H04J3/0685 ,  H04L7/0041 ,  H04L43/00 ,  H04L43/0852 ,  H04L43/106 ,  H04L43/18

摘要： Protocol analyzer systems enable synchronization of timestamps and the capture of data across serially chained boxes that are used together to monitor and capture network data. Through experiment, it can be determined how long it takes to propagate a signal to each box in the chain. These values are then recorded in each box in a delay register so that each box has a recorded delay value corresponding to the time required to propagate a signal to or receive a signal from every other box. Each box applies a control signal, such as a run signal or a trigger signal, to the ports in the box only after the expiration of the delay value indicated in the delay register. The box initiating the signal has the largest delay since the other boxes need to get the signal before the boxes can begin to operate with a common counter, with successive boxes having smaller delays.

摘要翻译： 协议分析仪系统可实现时间戳的同步和串联链接的数据的捕获，这些方法一起用于监视和捕获网络数据。 通过实验，可以确定将信号传播到链中的每个盒子需要多长时间。 然后将这些值记录在延迟寄存器中的每个框中，使得每个框具有对应于将信号传播到每个其他框或从每个其他框接收信号所需的时间的记录延迟值。 只有在延迟寄存器中指示的延迟值到期后，每个盒子将一个控制信号（如运行信号或触发信号）应用于盒中的端口。 启动信号的盒子具有最大的延迟，因为在盒子可以开始使用公共计数器操作之前，其他盒子需要获取信号，而连续的盒子具有较小的延迟。

公开(公告)号：US20050114697A1

公开(公告)日：2005-05-26

申请号：US10984505

申请日：2004-11-09

申请人： Kevin Cornell ,  Paul Gentieu ,  Arthur Lawson ,  Stephen Gordy ,  Lucy Hosking

发明人： Kevin Cornell ,  Paul Gentieu ,  Arthur Lawson ,  Stephen Gordy ,  Lucy Hosking

IPC分类号： G06F20060101 ,  G06F17/30 ,  H04L9/00 ,  H04L9/32 ,  H04L29/06

CPC分类号： H04L63/0428 ,  G06F21/57 ,  G06F21/72 ,  G06F21/85 ,  H04L9/0877 ,  H04L9/3234 ,  H04L63/08

摘要： Secure point to point network connections. Secure communications are accomplished between connection points. The first partner sends authentication information to a second partner. The second partner authenticates the authentication information from the first partner to verify the identity of the first partner. If the identity of the first partner is verified, high-speed data maybe streamed to the first partner. A connection between the first and second partners is policed to discover unauthorized devices connected to the connection or to discover the disconnection of a partner from the connection. If an unauthorized device is discovered or if a partner is removed, high-speed data is no longer sent on the connection.

摘要翻译： 安全点对点网络连接。 连接点之间实现安全通信。 第一个合作伙伴将身份验证信息发送给第二个合作伙伴。 第二个合作伙伴认证来自第一个合作伙伴的认证信息，以验证第一个合作伙伴的身份。 如果第一个合作伙伴的身份被验证，高速数据可能会流式传输到第一个合作伙伴。 管理第一和第二伙伴之间的连接，以发现连接到连接的未授权设备或发现合作伙伴与连接断开连接。 如果发现未经授权的设备或合作伙伴被删除，则不再在连接上发送高速数据。

公开(公告)号：US20050114710A1

公开(公告)日：2005-05-26

申请号：US10975310

申请日：2004-10-28

申请人： Kevin Cornell ,  Paul Gentieu ,  Arthur Lawson ,  Stephen Gordy ,  Lucy Hosking

发明人： Kevin Cornell ,  Paul Gentieu ,  Arthur Lawson ,  Stephen Gordy ,  Lucy Hosking

IPC分类号： G06F20060101 ,  G06F17/30 ,  H04L9/00 ,  H04L9/32 ,  H04L29/06

CPC分类号： H04L63/0428 ,  G06F21/57 ,  G06F21/72 ,  G06F21/85 ,  H04L9/0877 ,  H04L9/3234 ,  H04L63/08

摘要： A host bus adapter for use in secure network devices. The host bus adapter includes a network connector for connecting to a network such as a fiber-optic or Ethernet network. The network connector may connect to a physical layer device where the physical layer device is configured to receive high-speed network communications from the network connector. A decryption module is connected to the physical layer device for the decrypting high-speed encrypted network traffic received from the physical layer device. The host bus adapter includes an interface that is configured to connect to the host device. Authentication logic is included in the host bus adapter to authenticate and/or authenticate to a trusted partner.

摘要翻译： 用于安全网络设备的主机总线适配器。 主机总线适配器包括用于连接到诸如光纤或以太网的网络的网络连接器。 网络连接器可以连接到物理层设备，其中物理层设备被配置为从网络连接器接收高速网络通信。 解密模块连接到物理层设备，用于解密从物理层设备接收的高速加密网络流量。 主机总线适配器包括被配置为连接到主机设备的接口。 主机总线适配器中包含认证逻辑，以向受信任的合作伙伴进行身份验证和/或验证。

公开(公告)号：US20050114663A1

公开(公告)日：2005-05-26

申请号：US10975309

申请日：2004-10-28

申请人： Kevin Cornell ,  Paul Gentieu ,  Arthur Lawson ,  Stephen Gordy ,  Lucy Hosking

发明人： Kevin Cornell ,  Paul Gentieu ,  Arthur Lawson ,  Stephen Gordy ,  Lucy Hosking

IPC分类号： G06F20060101 ,  G06F17/30 ,  H04L9/00 ,  H04L9/32 ,  H04L29/06

CPC分类号： H04L63/0428 ,  G06F21/57 ,  G06F21/72 ,  G06F21/85 ,  H04L9/0877 ,  H04L9/3234 ,  H04L63/08

摘要： Secure point to point network communications. Secure point to point network communications are accomplished by sending data across a secure link. Trusted partners at the link are matched to each other. To ensure that no un-trusted partners are on the link, authentication is performed. One of the points may be a secure tap. The secure tap authenticates a trusted partner by receiving a hardware embedded encryption key or value derived from the hardware embedded encryption key from the trusted partner. Data sent on the trusted link is encrypted to prevent interception of the data. The secure tap polices the link to ensure that no un-trusted partners are attached to the link and that the trusted partner is not removed from the link. If un-trusted partners are added to the link or trusted partners removed from the link, the secure tap ceases sending data.

摘要翻译： 安全点对点网络通信。 通过在安全链路上发送数据来实现安全的点对点网络通信。 链接中的受信任合作伙伴相互匹配。 为了确保链路上没有不可信任的伙伴，执行身份验证。 其中一点可能是一个安全的水龙头。 安全抽头通过接收来自可信伙伴的硬件嵌入式加密密钥或从硬件嵌入式加密密钥导出的值来认证受信任的合作伙伴。 在可信链接上发送的数据被加密，以防止数据的拦截。 安全点击策略链接，以确保没有不可信任的合作伙伴附加到链接，并且信任的合作伙伴不会从链接中删除。 如果将不可信任的合作伙伴添加到从链接中删除的链接或受信任合作伙伴，则安全点击将停止发送数据。

公开(公告)号：US20070277213A1

公开(公告)日：2007-11-29

申请号：US11838167

申请日：2007-08-13

申请人： Frank Levinson ,  Gerald Sage ,  Arthur Lawson ,  Willem Mostert

发明人： Frank Levinson ,  Gerald Sage ,  Arthur Lawson ,  Willem Mostert

IPC分类号： H04N7/173

CPC分类号： H04N21/615 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/6168

摘要： An optical signal return path system includes a transmitter having a sample clock generator for generating a sample clock and an RF signal receiver for receiving and converting an analog RF data signal into a first data stream of digitized RF data samples at a rate determined by the sample clock. Supplemental channel circuitry provides a second data stream. A multiplexor receives and combines the first data stream and second data stream, and an optical transmitter converting the combined data stream into a serialized optical data signal for transmission over an optical fiber. The second data stream may contain maintenance data reflecting an operational state of the transmitter. A receiver receives the optical data signal and recovers therefrom a digital data stream and an associated first clock having an associated first clock rate. The data stream is stored in a memory device at the first clock rate. A clock generator generates a second clock having an associated second clock rate that is adjusted in accordance with a clock control signal. A control circuit reads data from the memory device at a rate corresponding to the second clock rate and generates a fullness signal that indicates whether the memory device is more full than a predefined threshold fullness level. A clock speed adjusting circuit generates the clock control signal in accordance with the fullness signal.

摘要翻译： 光信号返回路径系统包括具有用于产生采样时钟的采样时钟发生器和RF信号接收器的发射器，RF信号接收器以模拟RF数据信号的速率接收数字化RF数据样本的第一数据流， 时钟。 补充信道电路提供第二数据流。 多路复用器接收并组合第一数据流和第二数据流，以及光发送器，将组合的数据流转换成串行化的光数据信号，以在光纤上传输。 第二数据流可以包含反映发射机的操作状态的维护数据。 接收器接收光学数据信号并从其中恢复数字数据流和相关联的第一时钟具有相关联的第一时钟速率。 数据流以第一时钟速率存储在存储器件中。 时钟发生器产生具有根据时钟控制信号调整的相关联的第二时钟速率的第二时钟。 控制电路以对应于第二时钟速率的速率从存储器件读取数据，并产生指示存储器件是否比预定义的阈值充满度级更满的丰满度信号。 时钟速度调节电路根据丰满度信号产生时钟控制信号。

公开(公告)号：US20070081553A1

公开(公告)日：2007-04-12

申请号：US11421361

申请日：2006-05-31

申请人： Christopher Cicchetti ,  Arthur Lawson ,  Greta Light ,  Paul Gentieu ,  Timothy Beyers ,  Donald Blackwell

发明人： Christopher Cicchetti ,  Arthur Lawson ,  Greta Light ,  Paul Gentieu ,  Timothy Beyers ,  Donald Blackwell

IPC分类号： H04L12/56 ,  H04J3/16

CPC分类号： H04L12/10 ,  H04L43/00 ,  H04L43/0847 ,  H04L43/18

摘要： A network tap device that is configured for operation in a copper Gigabit Ethernet communications network using a power-over-Ethernet (“POE”) electrical supply is disclosed. In one embodiment, a network tap device powered by a POE supply is disclosed, comprising first and second network ports that are configured with receptacles for receiving communication cables. The communication cables are configured to carry both data signals and the POE supply to and from the network tap device. The network tap device further includes first and second tap ports that connect with additional communication cables to a monitoring device. The network tap device also includes control and regulation circuitry that is configured to receive the POE supply from the communication cables via the network ports and to enable components of the network tap device to be operated by the POE supply.

摘要翻译： 公开了一种网络抽头设备，其被配置为在使用以太网供电（POE）电源的铜吉比特以太网通信网络中运行。 在一个实施例中，公开了由POE电源供电的网络抽头设备，包括配置有用于接收通信电缆的插座的第一和第二网络端口。 通信电缆被配置为携带来自网络分接设备的数据信号和POE电源。 网络抽头设备还包括与另外的通信电缆连接到监视设备的第一和第二抽头端口。 网络抽头设备还包括控制和调节电路，其被配置为经由网络端口从通信电缆接收POE电源，并且允许网络抽头设备的组件由POE电源操作。

公开(公告)号：US20080019706A1

公开(公告)日：2008-01-24

申请号：US11838165

申请日：2007-08-13

申请人： Frank Levinson ,  Gerald Sage ,  Arthur Lawson ,  Willem Mostert

发明人： Frank Levinson ,  Gerald Sage ,  Arthur Lawson ,  Willem Mostert

IPC分类号： H04B10/06

CPC分类号： H04N21/615 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/6168

摘要： An optical signal return path system includes a transmitter having a sample clock generator for generating a sample clock and an RF signal receiver for receiving and converting an analog RF data signal into a first data stream of digitized RF data samples at a rate determined by the sample clock. Supplemental channel circuitry provides a second data stream. A multiplexor receives and combines the first data stream and second data stream, and an optical transmitter converting the combined data stream into a serialized optical data signal for transmission over an optical fiber. The second data stream may contain maintenance data reflecting an operational state of the transmitter. A receiver receives the optical data signal and recovers therefrom a digital data stream and an associated first clock having an associated first clock rate. The data stream is stored in a memory device at the first clock rate. A clock generator generates a second clock having an associated second clock rate that is adjusted in accordance with a clock control signal. A control circuit reads data from the memory device at a rate corresponding to the second clock rate and generates a fullness signal that indicates whether the memory device is more full than a predefined threshold fullness level. A clock speed adjusting circuit generates the clock control signal in accordance with the fullness signal.

摘要翻译： 光信号返回路径系统包括具有用于产生采样时钟的采样时钟发生器和RF信号接收器的发射器，RF信号接收器以模拟RF数据信号的速率接收数字化RF数据样本的第一数据流， 时钟。 补充信道电路提供第二数据流。 多路复用器接收并组合第一数据流和第二数据流，以及光发送器，将组合的数据流转换成串行化的光数据信号，以在光纤上传输。 第二数据流可以包含反映发射机的操作状态的维护数据。 接收器接收光学数据信号并从其中恢复数字数据流和相关联的第一时钟具有相关联的第一时钟速率。 数据流以第一时钟速率存储在存储器件中。 时钟发生器产生具有根据时钟控制信号调整的相关联的第二时钟速率的第二时钟。 控制电路以对应于第二时钟速率的速率从存储器件读取数据，并产生指示存储器件是否比预定义的阈值充满度级更满的丰满度信号。 时钟速度调节电路根据丰满度信号产生时钟控制信号。