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1. 发明授权

US08619758B2 Network telephony system 有权
公开(公告)号：US08619758B2
公开(公告)日：2013-12-31
申请号：US13071861
申请日：2011-03-25
申请人： Theodore F. Rabenko , Ian Crayford , David L. Hartman, Jr.
发明人： Theodore F. Rabenko , Ian Crayford , David L. Hartman, Jr.
IPC分类号： H04L12/64
CPC分类号： H04L47/2433 , H04L2012/6481 , H04M1/2473 , H04M1/2535 , H04M7/006
摘要： The present invention includes a network telephone having a microphone coupled to provide voice data to a network, a speaker coupled to facilitate listening to voice data from the network, a dialing device coupled to facilitate routing of voice data upon the network, a first port configured to facilitate communication with a first network device, a second port configured to facilitate communication with a second network device and a prioritization circuit coupled to apply prioritization to voice data provided by the microphone.

2. 发明授权

US6084878A External rules checker interface 失效
标题翻译：外部规则检查器界面
公开(公告)号：US6084878A
公开(公告)日：2000-07-04
申请号：US993715
申请日：1997-12-18
申请人： Ian Crayford , Denise Kerstein , Peter Ka-Fai Chow , Chandan Egbert , Thomas J. Runaldue
发明人： Ian Crayford , Denise Kerstein , Peter Ka-Fai Chow , Chandan Egbert , Thomas J. Runaldue
IPC分类号： H04L12/46 , H04L12/56 , H04L12/28 , H04L12/54
CPC分类号： H04L12/4641 , H04L49/25 , H04L49/3027 , H04L49/351 , H04L49/354
摘要： An interface located on a network switch transmits header information to an external device that makes data forwarding decisions. The interface receives and transmits header information that includes the source and destination address of the data. The external device generates data forwarding information and transmits the information back to the switch via the interface device. The network switch uses the information obtained via the interface and forwards the data packets to the appropriate destination.
摘要翻译：位于网络交换机上的接口将报头信息发送到进行数据转发决策的外部设备。该接口接收并发送包括数据的源地址和目标地址的标题信息。外部设备生成数据转发信息，并通过接口设备将信息发送回交换机。网络交换机使用通过接口获得的信息，并将数据包转发到适当的目的地。

3. 发明授权

US5940392A Programmable address mapping matrix for secure networks 失效
标题翻译：用于安全网络的可编程地址映射矩阵
公开(公告)号：US5940392A
公开(公告)日：1999-08-17
申请号：US366809
申请日：1994-12-30
申请人： William Lo , Ian Crayford
发明人： William Lo , Ian Crayford
IPC分类号： H04L12/18 , H04L12/44 , H04L12/46 , H04L29/06 , H04J3/26 , H04J3/36
CPC分类号： H04L12/46 , H04L45/7453 , H04L63/10 , H04L12/18 , H04L12/44
摘要： In a repeater having multiple ports and receiving at a source port a data packet containing a received address, an address mapping system including a content addressable memory (CAM) with address registers containing stored addresses, and an address mapping matrix coupled to said CAM, for perfectly mapping any of the address registers to any of the ports. According to one aspect of the invention, it operates in a repeater having an address compare and disrupt security system. The preferred embodiment of the present invention includes a content addressable memory having address registers containing stored individual and multicast addresses associated with each repeater port, and an address mapping matrix including a disrupt enable circuit associated with each port, for enabling the disruption of the data packet at that port when the received destination address does not match the associated stored addresses, and for disabling the disruption of the data packet at that port when the received destination address matches the stored address in a particular register and that particular register is mapped to that port via an address mapping register.
摘要翻译：在具有多个端口并且在源端口处接收包含接收到的地址的数据分组的中继器中，包括具有包含存储的地址的地址寄存器的内容可寻址存储器（CAM）的地址映射系统和耦合到所述CAM的地址映射矩阵，将任何地址寄存器完美地映射到任何端口。根据本发明的一个方面，其操作在具有地址比较和中断安全系统的中继器中。本发明的优选实施例包括内容可寻址存储器，其具有包含与每个中继器端口相关联的存储的单独和多播地址的地址寄存器，以及包括与每个端口相关联的中断使能电路的地址映射矩阵，以便能够中断数据分组当接收到的目的地地址与相关联的存储地址不匹配时，在该端口处，并且当接收到的目的地地址与特定寄存器中存储的地址匹配并且该特定寄存器被映射到该端口时禁止在该端口处的数据分组的中断通过地址映射寄存器。

4. 发明授权

US5404544A System for periodically transmitting signal to/from sleeping node identifying its existence to a network and awakening the sleeping node responding to received instruction 失效
标题翻译：用于向睡眠节点周期性地向睡眠节点发送信号以将其存在识别到网络并且响应于接收到的指令唤醒睡眠节点的系统
公开(公告)号：US5404544A
公开(公告)日：1995-04-04
申请号：US894016
申请日：1992-06-05
申请人： Ian Crayford
发明人： Ian Crayford
IPC分类号： H04L12/28 , G06F1/32 , H04L12/10 , H04L12/12 , H04L12/26 , H04L12/44 , G06F13/38 , G06F1/30
CPC分类号： G06F1/3215 , H04L12/10 , H04L12/12 , H04L12/44 , H04L43/0811 , Y02B60/32 , Y02B60/34 , Y02B60/35
摘要： One of the fundamental benefits of the 10BASE-T physical interface for 802.3/Ethernet is that the health of the communications link can be permanently monitored. When in the "link good" condition, the 10BASE-T transceiver is required to output a link status (LNKST) signal to this effect. Media Access Controller (MAC) 30, with an embedded 10BASE-T transceiver (37), uses the LNKST signal to provide power management to the MAC (30). By using the programmable AWAKE bit, the receive section of the 10BASE-T transceiver (37) can remain powered, even if the SLEEP input to the MAC (30) is activated. This allows the transceiver (37) to detect a link beat pulse (60) or receive packet activity. If either receive condition is encountered, the internal transceiver (37) will activate the LNKST output from the MAC (30). The system hardware and/or software can use the LNKST output to take appropriate action. For instance, if the LNKST output is active (low), then the computer is connected to an active network, and it is likely that the operating system will allow the MAC (30) to remain powered. However, if the LNKST becomes inactive (high) then the system can assume that the link is inactive, and the MAC can be powered down to save power. If at a later time the link is re-established, the MAC (30) can be powered back up to take advantage of the communications channel. In this way, the power consumption of the Ethernet connection can be managed by the operating software/hardware.
摘要翻译： 802.3 / Ethernet 10BASE-T物理接口的基本优点之一是可以永久监控通信链路的运行状况。当处于“链路良好”状态时，10BASE-T收发器需要输出链路状态（LNKST）信号。具有嵌入式10BASE-T收发器（37）的媒体访问控制器（MAC）30使用LNKST信号向MAC（30）提供电力管理。通过使用可编程AWAKE位，即使对MAC（30）的SLEEP输入被激活，10BASE-T收发器（37）的接收部分也可以保持供电。这允许收发器（37）检测链路脉搏（60）或接收分组活动。如果遇到任一接收条件，内部收发器（37）将激活MAC（30）的LNKST输出。系统硬件和/或软件可以使用LNKST输出采取适当的措施。例如，如果LNKST输出有效（低电平），则计算机连接到活动网络，并且操作系统很可能允许MAC（30）保持供电。然而，如果LNKST变为不活动（高），则系统可以假定链路不活动，并且MAC可以掉电以节省功率。如果在稍后的时间重新建立链路，则MAC（30）可以被加电以利用通信信道。这样，以太网连接的功耗可由操作软件/硬件来管理。

5. 发明申请

US20110176540A1 Network Telephony System 有权
标题翻译：网络电话系统
公开(公告)号：US20110176540A1
公开(公告)日：2011-07-21
申请号：US13071861
申请日：2011-03-25
申请人： Ted F. Rabenko , Ian Crayford , David L. Hartman, JR.
发明人： Ted F. Rabenko , Ian Crayford , David L. Hartman, JR.
IPC分类号： H04L12/66
CPC分类号： H04L47/2433 , H04L2012/6481 , H04M1/2473 , H04M1/2535 , H04M7/006
摘要： The present invention includes a network telephone having a microphone coupled to provide voice data to a network, a speaker coupled to facilitate listening to voice data from the network, a dialing device coupled to facilitate routing of voice data upon the network, a first port configured to facilitate communication with a first network device, a second port configured to facilitate communication with a second network device and a prioritization circuit coupled to apply prioritization to voice data provided by the microphone.
摘要翻译：本发明包括具有麦克风的网络电话，所述麦克风被耦合以向网络提供语音数据，耦合到便于监听来自网络的语音数据的扬声器，耦合以促进语音数据在网络上的路由的拨号设备，配置的第一端口以促进与第一网络设备的通信，配置为促进与第二网络设备的通信的第二端口以及耦合以对由麦克风提供的语音数据应用优先级的优先化电路。

6. 发明授权

US06970419B1 Method and apparatus for preserving frame ordering across aggregated links between source and destination nodes 失效
标题翻译：用于在源节点和目的节点之间的聚合链路上保留帧排序的方法和装置
公开(公告)号：US06970419B1
公开(公告)日：2005-11-29
申请号：US09131141
申请日：1998-08-07
申请人： Mohan V. Kalkunte , James L. Mangin , Ian Crayford
发明人： Mohan V. Kalkunte , James L. Mangin , Ian Crayford
IPC分类号： H04J1/16 , H04L12/26 , H04L12/56
CPC分类号： H04L47/34 , H04L47/10 , H04L47/2441 , H04L47/6215 , H04L49/90 , H04L49/901 , H04L49/9047
摘要： A method for preserving frame order of a plurality of frames transmitted over a plurality of communication links is presented. In accordance with the teachings of the present invention, the method includes receiving up to a plurality of indications denoting commencement of frame transmission on a corresponding plurality of communication links, and assigning a pointer value to a record in a buffer for each of said frames based, at least in part, on a relative order in which the indications are received.
摘要翻译：提出了一种用于保持通过多个通信链路发送的多个帧的帧顺序的方法。根据本发明的教导，该方法包括：接收多个表示在相应的多个通信链路上开始帧传输的指示，并且将指针值分配给每个所述帧的缓冲器中的记录，至少部分地基于接收到指示的相对顺序。

7. 发明授权

US6167054A Method and apparatus providing programmable thresholds for full-duplex flow control in a network switch 失效
标题翻译：为网络交换机中的全双工流量控制提供可编程阈值的方法和装置
公开(公告)号：US6167054A
公开(公告)日：2000-12-26
申请号：US992913
申请日：1997-12-18
申请人： Philip Simmons , Bahadir Erimli , Jinqlih Sang , Peter Ka-Fai Chow , Ian Crayford , Jayant Kadambi , Denise Kerstein , Thomas Jefferson Runaldue
发明人： Philip Simmons , Bahadir Erimli , Jinqlih Sang , Peter Ka-Fai Chow , Ian Crayford , Jayant Kadambi , Denise Kerstein , Thomas Jefferson Runaldue
IPC分类号： H04L13/08 , G06F11/26 , G06F12/00 , G06F13/00 , G06F13/10 , G06F13/16 , G06F13/24 , G06F15/00 , G06F15/16 , G08B5/00 , G11C11/412 , H04B7/14 , H04J3/02 , H04J3/12 , H04J3/22 , H04J3/24 , H04L12/18 , H04L12/24 , H04L12/28 , H04L12/413 , H04L12/44 , H04L12/46 , H04L12/50 , H04L12/54 , H04L12/66 , H04L12/861 , H04L12/863 , H04L12/879 , H04L12/931 , H04L12/933 , H04L12/935 , H04L12/937 , H04L12/939 , H04L12/947 , H04Q3/545 , H04Q11/00
CPC分类号： H04L49/3009 , G06F13/1605 , G06F13/24 , G11C11/412 , H04L12/1863 , H04L12/4641 , H04L12/4645 , H04L12/467 , H04L41/0213 , H04L47/50 , H04L47/6225 , H04L49/103 , H04L49/201 , H04L49/25 , H04L49/255 , H04L49/30 , H04L49/3027 , H04L49/3054 , H04L49/351 , H04L49/354 , H04L49/40 , H04L49/50 , H04L49/552 , H04L49/555 , H04L49/90 , H04L49/901 , H04L49/9047 , H04L49/9063 , H04L49/9073 , H04L49/9078 , H04L49/9084 , H04Q3/54591 , H04Q2213/1316 , H04Q2213/13162
摘要： A network having a shared memory architecture for storing data frames has a set of programmable thresholds that specify when flow control should be initiated on full-duplex network ports. The network switch includes a queue for storing free frame pointers that specify available memory locations in an external memory for storing data frames received from a network station. The network switch takes a frame pointer from a free buffer queue for each received data frame, and stores the received data frame in the location in external memory specified by the frame pointer while a decision making engine within the switch determines the appropriate destination ports. Flow control is initiated based on the number of available frame pointers by transmitting a PAUSE frame having a selected PAUSE interval to a transmitting network station. Specifically, a full-duplex port will output a PAUSE frame having a short, medium, or long programmed pause interval if the free buffer pool of available frame pointers falls below a high, medium, or low programmable threshold, respectively. The switch thus provides flexibility in generating variable-length PAUSE control frames to minimize wasting network bandwidth.
摘要翻译：具有用于存储数据帧的共享存储器架构的网络具有一组可编程阈值，其指定何时应当在全双工网络端口上启动流量控制。网络交换机包括用于存储空闲帧指针的队列，其指定用于存储从网络站接收的数据帧的外部存储器中的可用存储器位置。网络交换机从每个接收到的数据帧的空闲缓冲器队列中获取帧指针，并且将接收到的数据帧存储在由帧指针指定的外部存储器中的位置，同时交换机内的决策引擎确定适当的目的地端口。通过将具有所选暂停间隔的暂停帧发送到发射网络站，基于可用帧指针的数量启动流控制。具体来说，如果可用帧指针的空闲缓冲池分别低于高，中或低可编程阈值，则全双工端口将输出具有短，中或长编程暂停间隔的暂停帧。因此，交换机可以灵活地生成可变长度的PAUSE控制帧，以最大限度地减少浪费的网络带宽。

8. 发明授权

US6078627A Circuit and method for multilevel signal decoding, descrambling, and error detection 失效
标题翻译：多电平信号解码，解扰和错误检测的电路和方法
公开(公告)号：US6078627A
公开(公告)日：2000-06-20
申请号：US992963
申请日：1997-12-18
申请人： Ian Crayford
发明人： Ian Crayford
IPC分类号： H04L25/34
CPC分类号： H04L25/4923 , H04L25/066
摘要： At least two level detectors compare a multilevel signal to respective prescribed voltage levels to produce corresponding streams of bits. These bit streams are repeatedly delayed in respective digital delay lines, and bits from the digital delay lines are output in parallel to multilevel decoder logic. The multilevel decoder logic converts the parallel bits into a plurality of corresponding two-level decoded bits and performs error detections for an invalid transition in the multilevel signal. The decoded bits may be descrambled and block decoded.
摘要翻译：至少两个电平检测器将多电平信号与相应的规定电压电平进行比较以产生相应的位流。这些位流在相应的数字延迟线中重复延迟，并且来自数字延迟线的位与多电平解码器逻辑并行输出。多级解码器逻辑将并行位转换为多个对应的两级解码位，并对多级信号中的无效转换执行错误检测。解码的比特可以被解扰和块解码。

9. 发明授权

US5539737A Programmable disrupt of multicast packets for secure networks 失效
标题翻译：可编程中断安全网络的组播数据包
公开(公告)号：US5539737A
公开(公告)日：1996-07-23
申请号：US366806
申请日：1994-12-30
申请人： William Lo , Ian Crayford
发明人： William Lo , Ian Crayford
IPC分类号： H04L12/18 , H04L12/22 , H04L12/44 , H04L29/06 , H04L9/00
CPC分类号： H04L63/0236 , H04L12/1886 , H04L12/22 , H04L12/44
摘要： A secure repeater implementing data packet masking includes a programmable and selective, on a per port basis, multicast response. A multicast controller receives a multicast identifier extracted from a destination address field of a data packet. A plurality of memories, one associated with each port, determines the associated port's response to the multicast identifier. Each memory stores a multicast control code. When the multicast control code for a particular port has a value indicating that the associated port is enabled to receive multicast packets, assertion of the multicast identifier to the multicast controller for the particular port results in disabling the security masking for the port and subsequent transmission of unmodified data from the particular port.
摘要翻译：实现数据包掩蔽的安全中继器包括基于每端口的可编程和选择性的多播响应。组播控制器接收从数据包的目的地地址字段提取的多播标识符。与每个端口相关联的多个存储器确定关联端口对多播标识符的响应。每个存储器存储组播控制代码。当特定端口的组播控制代码具有指示关联的端口被允许接收多播分组的值时，将特定端口的组播标识符断言给组播控制器导致禁用该端口的安全掩蔽并随后传输来自特定端口的未修改数据。

10. 发明授权

US06973031B1 Method and apparatus for preserving frame ordering across aggregated links supporting a plurality of transmission rates 失效
标题翻译：用于在支持多个传输速率的聚合链路上保持帧排序的方法和装置
公开(公告)号：US06973031B1
公开(公告)日：2005-12-06
申请号：US09271011
申请日：1999-03-17
申请人： Mohan V. Kalkunte , James L. Mangin , Ian Crayford
发明人： Mohan V. Kalkunte , James L. Mangin , Ian Crayford
IPC分类号： H04J1/16 , H04L12/26 , H04L12/56
CPC分类号： H04L47/34 , H04L47/10 , H04L47/2441 , H04L47/6215 , H04L49/90 , H04L49/901 , H04L49/9047
摘要： A method for preserving frame order across an aggregated link comprised of a plurality of virtual links each supporting a particular transmission rate is presented comprising receiving up to a plurality of indications denoting commencement of frame transmission on each of the virtual links, and assigning a plurality of pointer values to a corresponding plurality of records in a pointer value buffer associated with each of the virtual links based, at least in part, on the relative order in which data frames are transmitted on each of the virtual links.
摘要翻译：提供了一种用于在由多个支持特定传输速率的虚拟链路组成的聚合链路之间保持帧顺序的方法，包括：接收多个指示，指示每个虚拟链路上的帧传输的开始，以及分配多个至少部分地基于每个虚拟链路上发送数据帧的相对顺序，将指针值指向与每个虚拟链路相关联的指针值缓冲器中的相应多个记录。

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