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公开(公告)号：US07119597B1
公开(公告)日：2006-10-10
申请号：US10753054
申请日：2004-01-07
申请人： Robert A. Barrett , Patrick J. Ryan
发明人： Robert A. Barrett , Patrick J. Ryan
IPC分类号： G06F1/04
CPC分类号： G01R31/14 , G01R31/001 , H03K3/57 , H03K5/12
摘要： A test circuit employs use of first and second switches to operably charge a capacitor to over 500 volts and, thereafter, discharge energy stored in the capacitor to test an over-voltage protection circuit associated with a pin of a semiconductor device. When switched by a controller, the first switch couples a high voltage source to charge a capacitor. After completing this charge phase, the controller opens the first switch, decoupling the high voltage source from the capacitor. The controller then activates the second switch to couple the capacitor to the pin of the semiconductor device. During this discharge phase, energy in the capacitor discharges through the protection circuit of the semiconductor device. Use of a high-voltage dry reed vacuum relay as the first switch provides better isolation of the high voltage source from the capacitor, avoiding a presence of an unwanted residual voltage component in a simulated ESD test pulse.
摘要翻译： 测试电路使用第一和第二开关来将电容器可操作地充电到超过500伏特，然后释放存储在电容器中的能量，以测试与半导体器件的引脚相关联的过电压保护电路。 当由控制器切换时，第一开关耦合高电压源以对电容器充电。 完成此充电阶段后，控制器打开第一个开关，将高电压源与电容器去耦。 然后，控制器激活第二开关以将电容器耦合到半导体器件的引脚。 在该放电阶段期间，电容器中的能量通过半导体器件的保护电路放电。 使用高压干簧管真空继电器作为第一个开关可以提供高电压源与电容器的更好隔离，避免在模拟ESD测试脉冲中存在不需要的残余电压分量。
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公开(公告)号：US08199905B1
公开(公告)日：2012-06-12
申请号：US12497222
申请日：2009-07-02
IPC分类号： H04M1/00
摘要： The present disclosure generally pertains to systems and methods for identifying subscriber lines coupled to transceivers of interest. In one exemplary embodiment, an end of a subscriber line is coupled to and terminated by a transceiver of interest. The other end of the subscriber line is coupled to a speaker. The transceiver is then selectively activated and deactivated causing it to transmit its normal frequency spectrum in a predefined pattern. The frequency spectrum includes frequencies audible to humans. Thus, the speaker produces sound capable of being heard by a human, and the sound exhibits periods of noise followed by periods of silence. Indeed, the periods of noise and silence are in a pattern according to the activation/deactivation pattern of the transceiver. Thus, a user can identify the subscriber line that is coupled to the transceiver by identifying which of the lines is coupled to the speaker when the speaker emits noise and silence according to the predefined pattern.
摘要翻译： 本公开通常涉及用于识别与感兴趣的收发器相耦合的用户线路的系统和方法。 在一个示例性实施例中，用户线路的一端被感兴趣的收发器耦合到终端并由终端终端。 用户线的另一端耦合到扬声器。 然后，收发器被选择性地激活和去激活，使其以预定义的模式发送其正常频谱。 频谱包括人类可听到的频率。 因此，扬声器产生能够被人听到的声音，并且声音呈现出噪音的周期，随后是沉默期。 实际上，根据收发机的激活/去激活模式，噪声和静音的周期是一个模式。 因此，当扬声器根据预定义的模式发出噪声和静音时，用户可以通过识别哪个线耦合到扬声器来识别耦合到收发器的用户线。
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公开(公告)号：US5630593A
公开(公告)日：1997-05-20
申请号：US302467
申请日：1994-09-12
CPC分类号： F16J15/0887
摘要： A pressure-energized sealing ring having a bight portion, a first leg portion and a second leg portion for providing a fluid-tight seal between a pair of components. The first and second leg portions include a curved section having first and second sealing surfaces. The sealing surfaces are spaced from the free ends of the leg portion. The free ends of the leg portions are positioned between the bight portion and the sealing surfaces so that the ends of the seal are located in the area of low pressure. Accordingly, when sealing ring is a multi-ply seal, the free ends of the seal are positioned in the low pressure area so that the high pressure does not separate the seal. The curved sections of the leg portions and the curve of the bight portion securely couple the plies together without welding. Preferably, the plies are connected together and in intimate contact at their interfaces therebetween. In some embodiments, the leg portions include planar or crowned sections so that the sealing surfaces are faced farther from the bight portions to lower the contact force and stress level in the bight portion. In other embodiments, the bight portion has at least one convolution. Still in other embodiments, the sealing ring is arranged for an externally pressurized-type application.
摘要翻译： 一种具有弯曲部分的压力通电的密封环，第一支腿部分和第二支腿部分，用于在一对部件之间提供流体密封。 第一和第二腿部包括具有第一和第二密封表面的弯曲部分。 密封表面与腿部的自由端间隔开。 腿部的自由端位于弯曲部分和密封表面之间，使得密封件的端部位于低压区域中。 因此，当密封圈是多层密封件时，密封件的自由端位于低压区域，使得高压不分离密封件。 腿部的弯曲部分和弯曲部分的曲线将帘布层牢固地连接在一起而不进行焊接。 优选地，层在它们之间的界面处连接在一起并且紧密接触。 在一些实施例中，腿部包括平面或凸起的部分，使得密封表面远离弯曲部分，以降低弯曲部分中的接触力和应力水平。 在其他实施例中，弯曲部分具有至少一个卷积。 在其它实施例中，密封环被布置用于外部加压型应用。
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4.发明授权Data communication system and method for selectively implementing forward error correction 有权数据通信系统及选择性实现前向纠错的方法公开(公告)号：US07162676B2
公开(公告)日：2007-01-09
申请号：US10668030
申请日：2003-09-22
CPC分类号： H03M13/353 , H04L1/0009 , H04L1/22
摘要： A data communication system comprises a forward error correction (FEC) module, a first transceiver, a second transceiver, and logic. The FEC module is configured to receive data and to define FEC code words based on the received data. The first transceiver is coupled to a first communication line, and the second transceiver is coupled to a second communication line. The logic is configured to selectively enable the FEC module to implement a desired FEC scheme based on an estimated error rate associated with the first communication line and an estimated error rate associated with the second communication line.
摘要翻译： 数据通信系统包括前向纠错（FEC）模块，第一收发机，第二收发器和逻辑。 FEC模块被配置为基于接收的数据接收数据和定义FEC码字。 第一收发器耦合到第一通信线路，并且第二收发器耦合到第二通信线路。 逻辑被配置为基于与第一通信线路相关联的估计误码率和与第二通信线路相关联的估计误码率来选择性地使得FEC模块能够实现期望的FEC方案。
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5.发明授权公开(公告)号：US07103820B2
公开(公告)日：2006-09-05
申请号：US10667942
申请日：2003-09-22
IPC分类号： G01R31/28
CPC分类号： H03M13/2707
摘要： A forward error correction system comprises a forward error correction (FEC) module and a transmission module. The FEC module is configured to define a plurality of FEC code words, and the transmission module is configured to transmit the FEC code words to a remote receiving unit via a plurality of communication connections. The transmission module is further configured to ensure that characters of each of the FEC code words are transmitted across different ones of the communication connections.
摘要翻译： 前向纠错系统包括前向纠错（FEC）模块和传输模块。 FEC模块被配置为定义多个FEC码字，并且发送模块被配置为经由多个通信连接将FEC码字发送到远程接收单元。 传输模块还被配置为确保每个FEC码字的字符在不同的通信连接之间传输。
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公开(公告)号：US4854600A
公开(公告)日：1989-08-08
申请号：US233019
申请日：1988-08-17
CPC分类号： F16J15/0887 , F16J15/021 , F16L23/20
摘要： A pressure balance sealing ring having a substantially S-shaped, resilient cross section including two oppositely facing convolutions, a central leg coupling the convolutions and a pair of outer legs, each extending from one of the convolutions. The ring is advantageously formed of metal and seals against opposed axially facing but offset surfaces in an annulus between two concentric pipes or opposed axially facing surfaces at the interface formed by two aligned pipes. Each outer leg has a substantially circular sealing line, these sealing lines being radially offset from one another, adjacent the free distal edge of each leg, and spaced from the convolutions. In a modified embodiment, the sealing ring has more than two convolutions and additional legs to connect them. In another series of modified embodiments, the sealing ring has one or two restraining rings rigidly coupled to one or both of the outer legs to ensure the desired direction of torsional deflection under the action of the differential pressure. The sealing ring can also have its sealing lines axially offset as an alternative to them being radially offset.
摘要翻译： 一种压力平衡密封环，其具有基本上S形的弹性横截面，其包括两个相对面对的卷积，中心腿连接卷轴和一对外部腿，每个从一个旋转延伸。 环有利地由金属形成，并且在由两个对准的管形成的界面处的两个同心管或相对的轴向相对的表面之间的环中的相对的轴向面对但是偏移的表面上密封。 每个外腿具有基本上圆形的密封线，这些密封线彼此径向偏移，与每个腿的自由远侧边缘相邻，并与卷积间隔开。 在改进的实施例中，密封环具有两个以上的卷积和附加的腿以连接它们。 在另一系列改进的实施例中，密封环具有刚性地联接到一个或两个外腿的一个或两个限制环，以在差压的作用下确保期望的扭转方向。 密封环也可以使其密封线轴向偏移，作为其径向偏移的替代。
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公开(公告)号：US4457523A
公开(公告)日：1984-07-03
申请号：US437869
申请日：1982-10-29
CPC分类号： F16J15/021 , F16J15/0887 , F16L21/02
摘要： A torsionally flexible annular seal in the form of a metallic, resilient sealing ring for a pair of concentric, hollow annular bodies having high pressure and temperature fluid flowing therethrough and having different thermal expansion rates and/or temperatures. The sealing ring comprises a central tapering portion, a first curvilinear sealing portion at one end of the central portion, and a second curvilinear sealing portion at the other end of the central portion. In one embodiment the central tapering portion is frustoconical, and in a second it has convex and concave portions. The first and second sealing portions seal against inner and outer cylindrical surfaces defined by the pair of annular bodies, this sealing including at least two circular sealing lines in different planes.
摘要翻译： 一种用于一对同心的中空环形体的金属弹性密封环形式的扭转柔性环形密封件，其具有流过其中并具有不同热膨胀率和/或温度的高压和高温流体。 密封环包括中心锥形部分，中心部分一端处的第一曲线密封部分和位于中心部分另一端的第二曲线密封部分。 在一个实施例中，中心锥形部分是截头圆锥形的，并且在一个实施例中，其具有凸形和凹形部分。 第一和第二密封部分密封由一对环形体限定的内圆柱体和外圆柱形表面，该密封件包括不同平面中的至少两个圆形密封线。
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公开(公告)号：US09357057B1
公开(公告)日：2016-05-31
申请号：US13475621
申请日：2012-05-18
摘要： In a system for identifying subscriber lines, an end of a subscriber line is coupled to and terminated by a transceiver of interest. The other end of the subscriber line is coupled to a speaker. The transceiver is then selectively activated and deactivated causing it to transmit its normal frequency spectrum in a predefined pattern. The frequency spectrum includes frequencies audible to humans. Thus, the speaker produces sound capable of being heard by a human, and the sound exhibits periods of noise followed by periods of silence. Indeed, the periods of noise and silence are in a pattern according to the activation/deactivation pattern of the transceiver. Thus, a user can identify the subscriber line that is coupled to the transceiver by identifying which of the lines is coupled to the speaker when the speaker emits noise and silence according to the predefined pattern.
摘要翻译： 在用于识别用户线路的系统中，用户线路的一端被感兴趣的收发机耦合到终端并由其终止。 用户线的另一端耦合到扬声器。 然后，收发器被选择性地激活和去激活，使其以预定义的模式发送其正常频谱。 频谱包括人类可听到的频率。 因此，扬声器产生能够被人听到的声音，并且声音呈现出噪音的周期，随后是沉默期。 实际上，根据收发机的激活/去激活模式，噪声和静音的周期是一个模式。 因此，当扬声器根据预定义的模式发出噪声和静音时，用户可以通过识别哪个线耦合到扬声器来识别耦合到收发器的用户线。
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9.发明授权Communications system with bonding engine configured for maximum packet fragment size as adapted to communications line pairs and related method 有权具有绑定引擎的通信系统被配置为适应于通信线路对的最大分组片段大小和相关方法公开(公告)号：US08462654B1
公开(公告)日：2013-06-11
申请号：US12836659
申请日：2010-07-15
IPC分类号： G01R31/08
CPC分类号： H04L12/2854 , H04L47/41 , Y02D50/30
摘要： A communications system includes at least one telecommunications access module coupled to a plurality of communications subscriber line pairs and comprising at least one bonding engine. A module is configured to receive a provisioning request and determine the total number of communications subscriber line pairs available to form a bonding group and select at least one bonding engine for the bonding group. A data processor is configured to determine a maximum packet fragment size for the data packets based on the total number of available subscriber line pairs forming the bonding group. A maximum packet fragment size is adapted to the number of communications line pairs within the bonding group and the bonding engine fragments the data packets into the packet fragments. A transmitter receives the packet fragments and transmits the packet fragments over the communications subscriber line pairs forming the bonding group.
摘要翻译： 通信系统包括耦合到多个通信用户线对并且包括至少一个绑定引擎的至少一个电信接入模块。 模块被配置为接收供应请求并确定可用于形成绑定组的通信用户线对的总数，并且为绑定组选择至少一个绑定引擎。 数据处理器被配置为基于形成绑定组的可用用户线对的总数来确定数据分组的最大分组片段大小。 最大分组分片大小适合于绑定组内的通信线路对数量，并且绑定引擎将数据分组分段到分组片段中。 发射机接收分组片段，并通过形成绑定组的通信用户线对发送分组片段。
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公开(公告)号：US5716052A
公开(公告)日：1998-02-10
申请号：US707586
申请日：1996-09-05
CPC分类号： F16J15/0887
摘要： A pressure-energized sealing ring having a bight portion, a first leg portion and a second leg portion for providing a fluid-tight seal between a pair of components. The first and second leg portions include a curved section having first and second sealing surfaces. The sealing surfaces are spaced from the free ends of the leg portion. The free ends of the leg portions are positioned between the bight portion and the sealing surfaces so that the ends of the seal are located in the area of low pressure. Accordingly, when sealing ring is a multi-ply seal, the free ends of the seal are positioned in the low pressure area so that the high pressure does not separate the seal. The curved sections of the leg portions and the curve of the bight portion securely couple the plies together without welding. Preferably, the plies are connected together and in intimate contact at their interfaces therebetween. In some embodiments, the leg portions include planar or crowned sections so that the sealing surfaces are faced farther from the bight portions to lower the contact force and stress level in the bight portion. In other embodiments, the bight portion has at least one convolution. Still in other embodiments, the sealing ring is arranged for an externally pressurized-type application.
摘要翻译： 一种具有弯曲部分的压力通电的密封环，第一支腿部分和第二支腿部分，用于在一对部件之间提供流体密封。 第一和第二腿部包括具有第一和第二密封表面的弯曲部分。 密封表面与腿部的自由端间隔开。 腿部的自由端位于弯曲部分和密封表面之间，使得密封件的端部位于低压区域中。 因此，当密封圈是多层密封件时，密封件的自由端位于低压区域，使得高压不分离密封件。 腿部的弯曲部分和弯曲部分的曲线将帘布层牢固地连接在一起而不进行焊接。 优选地，层在它们之间的界面处连接在一起并且紧密接触。 在一些实施例中，腿部包括平面或凸起的部分，使得密封表面远离弯曲部分，以降低弯曲部分中的接触力和应力水平。 在其他实施例中，弯曲部分具有至少一个卷积。 在其它实施例中，密封环被布置用于外部加压型应用。
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