公开(公告)号：US20060203816A1

公开(公告)日：2006-09-14

申请号：US11121192

申请日：2005-05-03

申请人： Edele O'Malley ,  Eugene O'Neill ,  Kam Choi ,  Daniel O'Keeffe

发明人： Edele O'Malley ,  Eugene O'Neill ,  Kam Choi ,  Daniel O'Keeffe

IPC分类号： H04L12/56 ,  H04L12/54

CPC分类号： H04L63/1408 ,  H04L49/3009 ,  H04L49/354 ,  H04L49/355 ,  H04L2012/5687

摘要： A cascade system of network units includes forwarding units which have external ports, a communication fabric connecting the units and at least one processing unit which needs no forwarding database. The processing unit may perform a security operation such as intrusion prevention or encryption. Each forwarding unit on receipt of a packet performs a look-up to determine an egress port, to determine whether the packet must be diverted to a processing unit, to provide the packet with a first forwarding instruction identifying the egress port uniquely within the system and a second forwarding instruction identifying a diversion port by which the packet can reach the processing unit and to set an order field which determines which of the forwarding instructions shall be performed first. The processing unit is operative on receipt of the packet by way of the diversion port to change the order field to specify that the packet should now be sent to the egress port.

摘要翻译： 网络单元的级联系统包括具有外部端口的转发单元，连接单元的通信结构以及不需要转发数据库的至少一个处理单元。 处理单元可以执行诸如入侵防御或加密的安全操作。 每个转发单元在接收到分组时执行查找以确定出口端口，以确定分组是否必须被转移到处理单元，以向分组提供识别系统内唯一的出口端口的第一转发指令，以及 识别分组可以到达处理单元的转移端口的第二转发指令，以及设置首先执行哪个转发指令的顺序字段。 处理单元通过转移端口接收到分组，以改变订单字段以指定该分组现在应该被发送到出口端口。

公开(公告)号：US20060092947A1

公开(公告)日：2006-05-04

申请号：US11064227

申请日：2005-02-22

申请人： Daniel O'Keeffe ,  Eugene O'Neill ,  Edele O'Malley ,  Kam Choi

发明人： Daniel O'Keeffe ,  Eugene O'Neill ,  Edele O'Malley ,  Kam Choi

IPC分类号： H04L12/56 ,  H04L12/28

CPC分类号： H04L45/00 ,  H04L45/60 ,  H04L45/7453 ,  H04L47/20

摘要： A rules engine for the examination of selected fields in an addressed data packet, has an access control list table of which the entries each define an access control list rule, an action and a chain identifier. The access control list rule is a basic rule which refers to a TCP flow. The engine also has an extension rule table of which the entries each define an extension rule, a respective action and a respective rule identifier. The extension rule may refer to a particular flag in a TCP header. When a packet arrives the engine searches both tales. This search is made independently of the usual address lookup. If there is a match in both tables, and the chain identifier matches the extension rule identifier the engine prescribes the action associated with the extension rule. If the chain identifier of a matched access control list rule does not match a rule identifier of a matched extension rule the engine prescribes the action associates with the access control list rule. In the absence of a match with any access control list rule the action on a packet is based on the result from a lookup engine.

摘要翻译： 用于检查寻址数据分组中的所选字段的规则引擎具有访问控制列表表，其中条目各自定义访问控制列表规则，动作和链标识符。 访问控制列表规则是引用TCP流的基本规则。 引擎还具有扩展规则表，其中条目各自定义扩展规则，相应的动作和相应的规则标识符。 扩展规则可以指TCP头中的特定标志。 当一个包到达时，引擎搜索这两个故事。 该搜索是独立于通常的地址查找。 如果两个表中都有匹配，并且链标识符与扩展规则标识符匹配，则引擎规定与扩展规则相关联的操作。 如果匹配的访问控制列表规则的链标识符与匹配的扩展规则的规则标识符不匹配，则引擎规定与访问控制列表规则相关联的动作。 在没有与任何访问控制列表规则匹配的情况下，数据包上的操作基于查找引擎的结果。

公开(公告)号：US20080101371A1

公开(公告)日：2008-05-01

申请号：US11923869

申请日：2007-10-25

申请人： David Law ,  Edele O'Malley ,  Daniel O'Keeffe ,  Eugene O'Neill

发明人： David Law ,  Edele O'Malley ,  Daniel O'Keeffe ,  Eugene O'Neill

IPC分类号： H04L12/56

CPC分类号： H04L69/16 ,  H04L63/0236 ,  H04L63/0245 ,  H04L63/0263 ,  H04L63/1416 ,  H04L69/161 ,  H04L69/22

摘要： The occurrence of false positives and the post-processing of digital streams subjected to examination by a deterministic finite state machine for character strings are reduced by combining location-based pattern matching, e.g. on packet headers, and content-based pattern matching, e.g. on payloads of packets. One scheme allows automatic transition from a header match state into an initial state of a content matching machine. Another scheme is based on a rules graph defining strings of match states and the examination of a list of match states (rather than characters) which have been previously determined, for example by means of header matching and content matching. The latter is also capable of comparing offset and depth values associated with the match states with offset and depth criteria.

摘要翻译： 通过组合基于位置的模式匹配，例如，通过组合基于位置的模式匹配来减少误报的发生和经过用于字符串的确定性有限状态机检查的数字流的后处理。 分组报头和基于内容的模式匹配，例如， 在包的有效载荷上。 一种方案允许从头匹配状态自动转换到内容匹配机器的初始状态。 另一种方案是基于定义匹配状态串的规则图，并且例如通过标题匹配和内容匹配来检查先前确定的匹配状态（而不是字符）的列表。 后者还能够将与匹配状态相关联的偏移和深度值与偏移和深度标准进行比较。

公开(公告)号：US20060120373A1

公开(公告)日：2006-06-08

申请号：US11064258

申请日：2005-02-22

申请人： Daniel O'Keeffe ,  Eugene O'Neill ,  Edele O'Malley ,  Eoin O'Brien

发明人： Daniel O'Keeffe ,  Eugene O'Neill ,  Edele O'Malley ,  Eoin O'Brien

IPC分类号： H04L12/28

CPC分类号： G06F17/30982 ,  H04L45/7453 ,  H04L49/90

摘要： A content addressable memory stores entries each comprising a rule and as part of the entry a mask identifying all the entities to which the rule is applicable. A search pattern of data and a bit mask identifying the actual entity (or entities) associated with the data is applied as a search word along with a comparison mask that excludes all the other entities from the comparison of the search word with the entry. The CAM can thereby store efficiently in a single entry a rule that may be applicable to some but not all of a multiplicity of entities such as possible ingress ports of a network unit

摘要翻译： 内容可寻址存储器存储每个包括规则的条目，并且作为该条目的一部分，掩码标识规则所适用的所有实体。 将与数据相关联的实际实体（或实体）的搜索模式和位掩码应用为搜索词，以及将搜索词与条目的比较排除所有其他实体的比较掩码。 因此，CAM可以在单个条目中有效地存储可适用于一些但不是全部多个实体的规则，例如网络单元的可能入口端口

公开(公告)号：US08411062B1

公开(公告)日：2013-04-02

申请号：US13599167

申请日：2012-08-30

申请人： Denis Ellis ,  Daniel O'Keeffe ,  Maksym Prybytko

发明人： Denis Ellis ,  Daniel O'Keeffe ,  Maksym Prybytko

IPC分类号： G06F3/041

CPC分类号： H03K19/018521 ,  G06F3/0418 ,  G06F3/044 ,  H03K17/962

摘要： An apparatus includes a down pump configured to generate a regulated voltage signal based, at least in part, on an input voltage and a reference voltage. The apparatus includes a level shifter configured to generate an activation signal having a voltage level corresponding to the reference voltage based, at least in part, on the input voltage and the regulated voltage signal. The apparatus includes a switching device configured to generate a drive signal corresponding to the input voltage in response to the activation signal.

摘要翻译： 一种装置包括配置成至少部分地基于输入电压和参考电压产生调节电压信号的下泵。 该装置包括电平移位器，其被配置为至少部分地基于输入电压和调节电压信号产生具有与参考电压相对应的电压电平的激活信号。 该装置包括被配置为响应于激活信号产生对应于输入电压的驱动信号的开关装置。

公开(公告)号：US08384467B1

公开(公告)日：2013-02-26

申请号：US13534299

申请日：2012-06-27

申请人： Daniel O'Keeffe ,  Kevin Gallagher ,  Denis Ellis ,  Hans W. Klein

发明人： Daniel O'Keeffe ,  Kevin Gallagher ,  Denis Ellis ,  Hans W. Klein

IPC分类号： G05F1/10 ,  G05F3/02

CPC分类号： H02M3/073

摘要： An apparatus includes a charge pump array including multiple charge pump cells. The charge pump array is configurable into a first arrangement of the charge pump cells coupled in series or a second arrangement of the charge pump cells coupled in parallel. The apparatus can include reconfiguration circuitry configured to select the first arrangement of the charge pump cells or the second arrangement of the charge pump cells. The charge pump array is configured to alter a voltage level of a signal based, at least in part, on the selected arrangement of the charge pump cells.

摘要翻译： 一种装置包括一个包括多个电荷泵电池的电荷泵阵列。 电荷泵阵列可配置成串联耦合的电荷泵单元的第一布置或并联耦合的电荷泵单元的第二布置。 该装置可以包括被配置为选择电荷泵单元的第一布置或电荷泵单元的第二布置的重新配置电路。 电荷泵阵列被配置为至少部分地基于所选择的电荷泵单元的布置来改变信号的电压电平。

公开(公告)号：US20120256870A1

公开(公告)日：2012-10-11

申请号：US13277654

申请日：2011-10-20

申请人： Hans W. Klein ,  Kevin Gallagher ,  Daniel O'Keeffe ,  Denis Ellis ,  Bruce Byrkett

发明人： Hans W. Klein ,  Kevin Gallagher ,  Daniel O'Keeffe ,  Denis Ellis ,  Bruce Byrkett

IPC分类号： G06F3/044

CPC分类号： G06F3/044 ,  G06F3/0416

摘要： A circuit for generating a voltage is disclosed. The voltage has an amplitude greater than an available power supply. The circuit includes a driver to supply the voltage on an output terminal to an electrode of a touch sense array. The circuit also includes a charge pump array coupled to the driver. The charge pump array includes an array of charge pumps to supply an input voltage to the driver. The circuit also includes a feedback circuit coupled to the charge pump array. The feedback circuit is configured to measure the input voltage and to select different combinations of the array of charge pumps to maintain the voltage on the output terminal.

摘要翻译： 公开了一种用于产生电压的电路。 电压的幅度大于可用电源。 电路包括驱动器，用于将输出端子上的电压提供给触摸感测阵列的电极。 电路还包括耦合到驱动器的电荷泵阵列。 电荷泵阵列包括一组电荷泵，以向驱动器提供输入电压。 电路还包括耦合到电荷泵阵列的反馈电路。 反馈电路被配置为测量输入电压并且选择电荷泵阵列的不同组合以维持输出端子上的电压。

公开(公告)号：US07362143B2

公开(公告)日：2008-04-22

申请号：US11299997

申请日：2005-12-09

申请人： Daniel O'Keeffe

发明人： Daniel O'Keeffe

IPC分类号： H03K5/22

CPC分类号： H03K17/22 ,  G01R19/16538 ,  G06F1/28 ,  H03K2217/0036

摘要： A power supply monitoring circuit is provided that utilises an adaptive internal control of the refresh rates of capacitors to reduce the power requirements of the circuit. The circuit provides at an output a signal indicative of the level of the supply voltage relative to a predetermined reference voltage.

摘要翻译： 提供了一种电源监视电路，其利用对电容器的刷新率的自适应内部控制来降低电路的功率需求。 电路在输出端提供指示电源电压相对于预定参考电压的电平的信号。

公开(公告)号：US20070066900A1

公开(公告)日：2007-03-22

申请号：US11233216

申请日：2005-09-22

申请人： Daniel O'Keeffe

发明人： Daniel O'Keeffe

IPC分类号： A61B8/14

CPC分类号： A61B8/445 ,  A61B8/12 ,  A61M25/0051 ,  A61M25/0053 ,  A61M25/0054 ,  A61M25/0138

摘要： An intravascular ultrasound catheter may include a central lumen adapted to receive a drive shaft bearing an ultrasound transducer. The intravascular ultrasound catheter may in some instances exhibit improved flexibility. The catheter can include an inner polymeric layer, an outer polymeric layer and a spiral-cut hypotube that is positioned between the inner polymeric layer and the outer polymeric layer.

摘要翻译： 血管内超声导管可以包括适于接收带有超声换能器的驱动轴的中心腔。 在某些情况下，血管内超声导管可显示出改善的灵活性。 该导管可以包括内部聚合物层，外部聚合物层和位于内部聚合物层和外部聚合物层之间的螺旋切割海波波。

公开(公告)号：US09445784B2

公开(公告)日：2016-09-20

申请号：US11233216

申请日：2005-09-22

申请人： Daniel O'Keeffe

发明人： Daniel O'Keeffe

IPC分类号： A61M25/00 ,  A61B8/00 ,  A61B8/12 ,  A61M25/01

CPC分类号： A61B8/445 ,  A61B8/12 ,  A61M25/0051 ,  A61M25/0053 ,  A61M25/0054 ,  A61M25/0138

摘要： An intravascular ultrasound catheter may include a central lumen adapted to receive a drive shaft bearing an ultrasound transducer. The intravascular ultrasound catheter may in some instances exhibit improved flexibility. The catheter can include an inner polymeric layer, an outer polymeric layer and a spiral-cut hypotube that is positioned between the inner polymeric layer and the outer polymeric layer.

摘要翻译： 血管内超声导管可以包括适于接收带有超声换能器的驱动轴的中心腔。 在某些情况下，血管内超声导管可显示出改善的灵活性。 该导管可以包括内部聚合物层，外部聚合物层和位于内部聚合物层和外部聚合物层之间的螺旋切割海波波。