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1. 发明授权

US07457285B1 TDM switching system and ASIC device 有权
标题翻译： TDM交换系统和ASIC设备
公开(公告)号：US07457285B1
公开(公告)日：2008-11-25
申请号：US10901760
申请日：2004-07-28
申请人： Brent K. Parrish , Werner E. Niebel
发明人： Brent K. Parrish , Werner E. Niebel
IPC分类号： H04L12/52
CPC分类号： H04Q11/04 , H04Q2213/13103 , H04Q2213/13292 , H04Q2213/13299 , H04Q2213/1332 , H04Q2213/13322
摘要： In one embodiment, a switching system includes a backplane and multiple cards that each support multiple ASIC devices. Each ASIC device is associated with a subset of the network interfaces associated with the switching system. At least one ASIC device on a card may communicate switched data to an outgoing network interface associated with the card. Remaining ASIC devices on the card may communicate switched data to one or more other cards, using the backplane, for communication to one or more outgoing network interfaces associated with the other cards. In another embodiment, a device for switching data from a first bus to a second bus in a TDM switching system is provided. In another embodiment, a method for switching data between a plurality of network interfaces in a switching system is disclosed.
摘要翻译：在一个实施例中，交换系统包括背板和多个卡，每个卡支持多个ASIC设备。每个ASIC设备与与交换系统相关联的网络接口的子集相关联。卡上的至少一个ASIC设备可以将切换的数据传送到与该卡相关联的输出网络接口。卡上的剩余ASIC设备可以使用背板将交换数据传送到一个或多个其他卡，以便与一个或多个与其他卡相关联的输出网络接口进行通信。在另一个实施例中，提供了一种用于在TDM交换系统中将数据从第一总线切换到第二总线的设备。在另一实施例中，公开了一种用于在交换系统中的多个网络接口之间切换数据的方法。

2. 发明授权

US06785270B1 TDM switching system and ASIC device 有权
标题翻译： TDM交换系统和ASIC设备
公开(公告)号：US06785270B1
公开(公告)日：2004-08-31
申请号：US10430828
申请日：2003-05-06
申请人： Brent K. Parrish , Werner E. Niebel
发明人： Brent K. Parrish , Werner E. Niebel
IPC分类号： H04L1250
CPC分类号： H04Q11/04 , H04Q2213/13103 , H04Q2213/13292 , H04Q2213/13299 , H04Q2213/1332 , H04Q2213/13322
摘要： In another embodiment, an ASIC device includes a first RAM that stores a code for each of multiple first time slots. Each code is combined with corresponding data from a first bus to specify a previously stored operation. A second RAM receives the combined data and code for each first time slot and applies the specified operation for each first time slot to generate modified data for each first time slot. A third RAM stores information specifying a second time slot to correspond to each first time slot and communicates the information for each second time slot as an address. A fourth RAM stores the modified data for a previous frame and the modified data for a current frame, locates the modified data for each first time slot of the previous frame according to the address, and communicates the modified data for each time slot of the previous frame to a second bus in the corresponding second time slot while the modified data for the current frame is being stored.
摘要翻译：在另一个实施例中，ASIC设备包括存储多个第一时隙中的每一个的代码的第一RAM。每个代码与来自第一总线的相应数据组合以指定先前存储的操作。第二RAM接收每个第一时隙的组合数据和代码，并对每个第一时隙应用指定的操作，以产生每个第一时隙的修改数据。第三RAM存储指定与每个第一时隙对应的第二时隙的信息，并将每个第二时隙的信息作为地址进行通信。第四RAM存储前一帧的修改数据和当前帧的修改数据，根据该地址定位前一帧的每个第一时隙的修改数据，并且将前一帧的每个时隙的修改数据传送帧到对应的第二时隙中的第二总线，同时存储当前帧的修改数据。

3. 发明授权

US06434703B1 Event initiation bus and associated fault protection for a telecommunications device 有权
标题翻译：事件发起总线和电信设备的相关故障保护
公开(公告)号：US06434703B1
公开(公告)日：2002-08-13
申请号：US09328173
申请日：1999-06-08
申请人： Brent K. Parrish , Ronald A. McCracken , John J. Fernald
发明人： Brent K. Parrish , Ronald A. McCracken , John J. Fernald
IPC分类号： G06F1300
CPC分类号： H04L41/0659 , H04L41/5019 , H04L43/0811
摘要： A telecommunications device includes an event initiation bus, at least one card coupled to the bus that can execute an event, and at least one controller also coupled to the bus that can communicate an event code value to the card using the bus. The event code value indicates the event is to be executed. The controller determines an event code value from the bus, compares the communicated event code value with the determined event code value, and transmits an event strobe signal to the card using the bus if the communicated event code value matches the determined event code value. The event strobe signal enables execution of the event and the card executes the event in response to the event code value and the event strobe signal. In a particular embodiment, the device is a switching unit having a high availability backplane environment.
摘要翻译：电信设备包括事件发起总线，耦合到可执行事件的总线的至少一个卡，以及耦合到总线的至少一个控制器，该总线可以使用总线将事件代码值传送到卡。事件代码值表示要执行的事件。控制器从总线确定事件代码值，将所传送的事件代码值与所确定的事件代码值进行比较，并且如果通信的事件代码值与确定的事件代码值匹配，则使用总线将事件选通信号发送到卡。事件选通信号使得能够执行事件，并且卡响应于事件代码值和事件选通信号执行事件。在特定实施例中，该设备是具有高可用性背板环境的切换单元。

4. 发明授权

US06631483B1 Clock synchronization and fault protection for a telecommunications device 有权
标题翻译：电信设备的时钟同步和故障保护
公开(公告)号：US06631483B1
公开(公告)日：2003-10-07
申请号：US09330433
申请日：1999-06-08
申请人： Brent K. Parrish
发明人： Brent K. Parrish
IPC分类号： G06F1100
CPC分类号： G06F1/12 , H04J3/0688
摘要： A telecommunications device includes a synchronization bus and a controller coupled to the bus. The controller selects a primary reference clock signal from among a plurality of reference clock signals, generates a first system clock signal according to the primary reference clock signal, and communicates the system clock signal using the bus. The controller detects a loss of signal associated with the primary reference clock signal and, in response, enters holdover mode. The controller continues generating the first system clock signal while in holdover mode and determines the acceptability of a secondary reference clock signal also selected from among the plurality of reference clock signals. The controller performs a switchover from the primary reference clock signal to the secondary reference clock signal if the secondary reference clock signal is acceptable and, in response to the switchover, generates the first system clock signal according to the secondary reference clock signal. In one embodiment, a card coupled to the bus detects and indicates a loss of signal associated with the first system clock signal. A second controller determines a failure of the controller in response to at least the indication from the card. In a particular embodiment, the device is a switching unit having a high availability backplane environment.
摘要翻译：电信设备包括同步总线和耦合到总线的控制器。控制器从多个参考时钟信号中选择主参考时钟信号，根据主参考时钟信号产生第一系统时钟信号，并使用总线传送系统时钟信号。控制器检测到与主参考时钟信号相关联的信号丢失，并作为响应进入保持模式。控制器在保持模式下继续产生第一系统时钟信号，并且确定也从多个参考时钟信号中选择的次参考时钟信号的可接受性。如果辅助参考时钟信号是可接受的，则控制器从主参考时钟信号切换到次参考时钟信号，并且响应于切换，根据次参考时钟信号产生第一系统时钟信号。在一个实施例中，耦合到总线的卡检测并指示与第一系统时钟信号相关联的信号丢失。响应于至少来自卡的指示，第二控制器确定控制器的故障。在特定实施例中，该设备是具有高可用性背板环境的切换单元。

5. 发明授权

US07350116B1 Clock synchronization and fault protection for a telecommunications device 有权
标题翻译：电信设备的时钟同步和故障保护
公开(公告)号：US07350116B1
公开(公告)日：2008-03-25
申请号：US10901835
申请日：2004-07-28
申请人： Brent K. Parrish
发明人： Brent K. Parrish
IPC分类号： G06F11/00
CPC分类号： H04J3/0688 , G06F11/1604
摘要： According to one embodiment, a telecommunications device includes a bus and a controller coupled to the bus that generates a system clock signal according to a first reference clock signal and communicates the system clock signal using the bus. The controller detects a loss of the first reference clock signal and, in response, continues generating the system clock signal, switches from the first reference clock signal to a second reference clock signal if the second reference clock signal is acceptable, and generates the system clock signal according to the second reference clock signal.
摘要翻译：根据一个实施例，电信设备包括总线和耦合到总线的控制器，其根据第一参考时钟信号生成系统时钟信号，并使用总线传送系统时钟信号。控制器检测到第一参考时钟信号的损失，并且作为响应继续产生系统时钟信号，如果第二参考时钟信号是可接受的，则从第一参考时钟信号切换到第二参考时钟信号，并且产生系统时钟信号根据第二参考时钟信号。

6. 发明授权

US06425009B1 Monitoring redundant control buses to provide a high availability local area network for a telecommunications device 有权
标题翻译：监控冗余控制总线，为电信设备提供高可用性局域网
公开(公告)号：US06425009B1
公开(公告)日：2002-07-23
申请号：US09328038
申请日：1999-06-08
申请人： Brent K. Parrish , Ronald A. McCracken , John J. Fernald
发明人： Brent K. Parrish , Ronald A. McCracken , John J. Fernald
IPC分类号： G06F15173
CPC分类号： H04L43/50 , H04L41/06 , H04L41/0681
摘要： A telecommunications device includes a local area network with redundant first and second buses. Multiple cards coupled to the first and second buses communicate using the first bus. A first monitor coupled to the first and second buses detects a failure of the first bus and communicates a message indicating the failure using a data network. A second monitor also coupled to the first and second buses may detect the failure of the first bus and may also communicate a message indicating the failure using the data network. The first monitor and the second monitor may receive the messages from one another and cause the cards to communicate using the second bus. In a more particular embodiment, the second monitor transmits a test signal using the first bus in response to the message from the first monitor.
摘要翻译：电信设备包括具有冗余的第一和第二总线的局域网。耦合到第一和第二总线的多个卡使用第一总线进行通信。耦合到第一和第二总线的第一监视器检测第一总线的故障，并使用数据网络传送指示故障的消息。还耦合到第一和第二总线的第二监视器可以检测第一总线的故障，并且还可以使用数据网络传送指示故障的消息。第一监视器和第二监视器可以从彼此接收消息并且使得卡使用第二总线进行通信。在更具体的实施例中，响应于来自第一监视器的消息，第二监视器使用第一总线发送测试信号。

7. 发明授权

US07492706B1 Frame synchronization and fault protection for a telecommunications device 有权
标题翻译：电讯设备的帧同步和故障保护
公开(公告)号：US07492706B1
公开(公告)日：2009-02-17
申请号：US10740290
申请日：2003-12-18
申请人： Brent K. Parrish
发明人： Brent K. Parrish
IPC分类号： H04L12/24
CPC分类号： H04J3/0688
摘要： According to one embodiment, a telecommunications device includes a bus. A first controller coupled to the bus is operable to generate first pulses for communication using the bus. A second controller coupled to the bus is operable to generate second pulses synchronized with the first pulses for communication using the bus. A card coupled to the bus is operable to receive the first and second pulses, generate internal pulses synchronized with the first and second pulses, compare at least one internal pulse with at least one first pulse to detect a loss of synchronization, and indicate this loss of synchronization to allow the second controller to determine a failure of the first controller.
摘要翻译：根据一个实施例，电信设备包括总线。耦合到总线的第一控制器可操作以产生用于使用总线进行通信的第一脉冲。耦合到总线的第二控制器可操作以产生与第一脉冲同步的第二脉冲，以便使用总线进行通信。耦合到总线的卡可操作以接收第一和第二脉冲，产生与第一和第二脉冲同步的内部脉冲，将至少一个内部脉冲与至少一个第一脉冲进行比较，以检测同步丢失，并指示该损失以允许第二控制器确定第一控制器的故障。

8. 发明授权

US06614752B1 Transitioning a standards-based card into a high availability backplane environment 有权
标题翻译：将基于标准的卡转变为高可用性背板环境
公开(公告)号：US06614752B1
公开(公告)日：2003-09-02
申请号：US09328172
申请日：1999-06-08
申请人： Brent K. Parrish , Michael J. Taylor , Michael P. Colton
发明人： Brent K. Parrish , Michael J. Taylor , Michael P. Colton
IPC分类号： H04L1224
CPC分类号： H04Q3/0075 , H04L41/0659 , H04Q2213/13003 , H04Q2213/1308 , H04Q2213/13162 , H04Q2213/13163 , H04Q2213/13166 , H04Q2213/13167 , H04Q2213/13292 , H04Q2213/13299 , H04Q2213/13305 , H04Q2213/1332 , H04Q2213/13322 , H04Q2213/13349 , H04Q2213/1336 , H04Q2213/13362
摘要： A telecommunications device includes a backplane having an associated high availability backplane environment. A transition card coupled to the backplane helps transition a standards-based card supporting a Peripheral Component Interconnect (PCI) administrative bus into the high availability backplane environment. The transition card may also help transition either a Computer Telephony or a Serial Telephony serial data bus into the high availability backplane environment. In a more particular embodiment, the transition card may support a control bus, a synchronization bus, a reset bus, an isolate bus, and a power bus that each support at least one high availability characteristic not associated with the PCI bus. In another more particular embodiment, the transition card may provide at least some redundancy, hot insertion, fault detection, fault isolation, and fault recovery capabilities not associated with the PCI bus.
摘要翻译：电信设备包括具有相关联的高可用性背板环境的背板。耦合到背板的过渡卡有助于将支持外围组件互连（PCI）管理总线的基于标准的卡转移到高可用性背板环境中。过渡卡还可以帮助将计算机电话或串行电话串行数据总线转换到高可用性背板环境中。在更具体的实施例中，过渡卡可以支持控制总线，同步总线，复位总线，隔离总线和电源总线，每个支持至少一个不与PCI总线相关联的高可用性特性。在另一个更具体的实施例中，过渡卡可以提供与PCI总线不相关联的至少一些冗余，热插入，故障检测，故障隔离和故障恢复能力。

9. 发明授权

US06550016B1 Protection bus and method for a telecommunications device 有权
标题翻译：电信设备的保护总线和方法
公开(公告)号：US06550016B1
公开(公告)日：2003-04-15
申请号：US09327971
申请日：1999-06-08
申请人： Brent K. Parrish , John P. Barry
发明人： Brent K. Parrish , John P. Barry
IPC分类号： H02H305
CPC分类号： G06F11/2041 , G06F11/0757 , G06F11/2025 , G06F11/2038
摘要： A telecommunications device includes a protection bus, at least one protected card, and an I/O module for the protected card. The I/O module is coupled to the protected card and the protection bus and communicates data between the protected card and an associated network interface. The device also includes at least one protection card and a protection I/O module for the protection card. The protection I/O module is coupled to the protection card and to the protection bus and is capable of assuming at least some responsibilities of the protected card in response to a failure of the protected card. The protection I/O module will then communicate the data between the protection card and the I/O module for the protected card using the protection bus. The I/O module for the protected card communicates the data with the network interface associated with the protected card to protect the device from the failure of the protected card.
摘要翻译：电信设备包括保护总线，至少一个受保护的卡和用于该保护卡的I / O模块。 I / O模块耦合到受保护的卡和保护总线，并在受保护的卡和相关联的网络接口之间传送数据。该设备还包括至少一个保护卡和用于保护卡的保护I / O模块。保护I / O模块耦合到保护卡和保护总线，并且能够承受受保护的卡的至少一些责任以响应受保护的卡的故障。然后，保护I / O模块将使用保护总线将保护卡和I / O模块之间的数据传送给受保护的卡。受保护卡的I / O模块将数据与保护卡相关联的网络接口通信，以保护设备免受受保护卡的故障。

10. 发明授权

US07009969B1 Local area network and message packet for a telecommunications device 有权
标题翻译：用于电信设备的局域网和消息包
公开(公告)号：US07009969B1
公开(公告)日：2006-03-07
申请号：US09328171
申请日：1999-06-08
申请人： Brent K. Parrish , Christopher A. Metildi , Lee C. Stevens
发明人： Brent K. Parrish , Christopher A. Metildi , Lee C. Stevens
IPC分类号： H04L12/28
CPC分类号： H04L43/00 , H04L41/0681 , H04L43/0847
摘要： A telecommunications device includes a sender coupled to a local area network. The sender generates a message packet including an arbitration code and a data packet and communicates a first value of the arbitration code using the network. The sender determines a network value and compares the first value with the network value to determine whether the sender may communicate the data packet using the network. The arbitration code may further include a message priority code and a sender address. In another embodiment, the message packet further includes a destination code according to which the sender communicates the data packet as a point-to-point, multi-cast, or broadcast message.
摘要翻译：电信设备包括耦合到局域网的发送器。发送方生成包括仲裁码和数据包的消息包，并使用网络传送仲裁码的第一值。发送方确定网络值，并将第一个值与网络值进行比较，以确定发送方是否可以使用网络传送数据包。仲裁代码还可以包括消息优先级代码和发送方地址。在另一个实施例中，消息分组还包括目的地代码，根据该目的代码，发送者将数据分组作为点对点，多播或广播消息进行通信。

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