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31. 发明授权

US07756267B2 System and method for mirroring power over ethernet registers in a physical layer device over a single isolation boundary 有权
标题翻译：通过单个隔离边界在物理层设备中镜像以太网寄存器的电源的系统和方法
公开(公告)号：US07756267B2
公开(公告)日：2010-07-13
申请号：US11752373
申请日：2007-05-23
申请人： Wael William Diab , Nariman Yousefi , Scott Powell
发明人： Wael William Diab , Nariman Yousefi , Scott Powell
IPC分类号： G06F1/00
CPC分类号： H04L12/10 , Y02D50/30
摘要： A system and method for mirroring power over Ethernet (PoE) registers in physical layer devices (PHYs) over a single isolation boundary. PHYs in a PoE system can be arranged in a master/slave configuration. In this configuration, a master PHY can be designed to communicate with the power source equipment controllers via a single isolation device.
摘要翻译：用于通过单个隔离边界在物理层设备（PHY）中镜像以太网供电（PoE）寄存器的系统和方法。 PoE系统中的PHY可以被布置在主/从配置中。在该配置中，主PHY可被设计成经由单个隔离设备与电源设备控制器通信。

32. 发明申请

US20080172564A1 System and method for controlling a power budget at a power source equipment using a PHY 有权
标题翻译：用于控制使用PHY的电源设备的功率预算的系统和方法
公开(公告)号：US20080172564A1
公开(公告)日：2008-07-17
申请号：US11653274
申请日：2007-01-16
申请人： Wael William Diab , Nariman Yousefi , Kevin Clyde Brown
发明人： Wael William Diab , Nariman Yousefi , Kevin Clyde Brown
IPC分类号： G06F1/26
CPC分类号： H04L12/10
摘要： A system and method for controlling the delivery of power to a powered device in a Power over Ethernet Broad Reach (PoE-BR) application. Cabling power loss in a PoE-BR application is related to the resistance of the cable itself. A PHY can be designed to measure electrical characteristics (e.g., insertion loss, cross talk, length, etc.) of the Ethernet cable to enable determination of the cable resistance. The determined resistance in a broad reach cable can be used in increasing a power budget allocated to a power source equipment port.
摘要翻译：一种用于在以太网供电（PoE-BR）应用中控制向有源设备供电的系统和方法。 PoE-BR应用中的布线功率损耗与电缆本身的电阻有关。可以设计PHY以测量以太网电缆的电特性（例如，插入损耗，串扰，长度等），以确定电缆电阻。宽广电缆中确定的电阻可用于增加分配给电源设备端口的功率预算。

33. 发明授权

US08949049B2 System and method for detecting a device requiring power 有权
公开(公告)号：US08949049B2
公开(公告)日：2015-02-03
申请号：US11459815
申请日：2006-07-25
申请人： Vafa Rakshani , Nariman Yousefi
发明人： Vafa Rakshani , Nariman Yousefi
IPC分类号： G01R21/00 , H04M3/00 , H04M1/00 , H04M9/00 , H04L12/26 , G06F1/26 , H04L12/10 , H04L1/24 , H02J13/00 , H04L25/02
CPC分类号： H04L12/2697 , G06F1/266 , H02J13/0048 , H04L1/242 , H04L12/10 , H04L25/02 , H04L43/0817 , H04L43/50 , Y02B90/226 , Y04S20/16 , Y04S40/168 , Y10T307/832
摘要： A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.

34. 发明授权

US06954708B2 System and method for detecting a device requiring power 有权
标题翻译：用于检测需要电源的设备的系统和方法
公开(公告)号：US06954708B2
公开(公告)日：2005-10-11
申请号：US10124676
申请日：2002-04-17
申请人： Vafa Rakshani , Nariman Yousefi
发明人： Vafa Rakshani , Nariman Yousefi
IPC分类号： H04B1/69 , H04L12/10 , H04L12/26 , G06F1/26
CPC分类号： H04L12/2697 , G06F1/266 , H02J13/0048 , H04L1/242 , H04L12/10 , H04L25/02 , H04L43/0817 , H04L43/50 , Y02B90/226 , Y04S20/16 , Y04S40/168 , Y10T307/832
摘要： A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
摘要翻译：用电力检测站实现用于检测需要电力的装置的系统和技术。功率检测系统包括具有输出和返回的检测器，当器件需要电力时，该检测器由器件耦合在一起。该检测器包括用于产生经由检测器输出传输到设备的测试脉冲的字产生器，以及用于将检测器输出与检测器返回值进行比较的比较器。电力检测站具有各种各样的应用，例如通过开关或集线器。

35. 发明申请

US20080033670A1 SYSTEM AND METHOD FOR DETECTING A DEVICE REQUIRING POWER 审中-公开
标题翻译：用于检测需要设备的系统和方法
公开(公告)号：US20080033670A1
公开(公告)日：2008-02-07
申请号：US11835155
申请日：2007-08-07
申请人： Vafa Rakshani , Nariman Yousefi
发明人： Vafa Rakshani , Nariman Yousefi
IPC分类号： G01R21/00
CPC分类号： G06F1/266 , H02J13/0048 , H04L1/242 , H04L12/10 , H04L25/02 , H04L43/0817 , H04L43/50 , Y02B90/226 , Y04S20/16 , Y04S40/168 , Y10T307/832
摘要： A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
摘要翻译：用电力检测站实现用于检测需要电力的装置的系统和技术。功率检测系统包括具有输出和返回的检测器，当器件需要电力时，该检测器由器件耦合在一起。该检测器包括用于产生经由检测器输出传输到设备的测试脉冲的字产生器，以及用于将检测器输出与检测器返回值进行比较的比较器。电力检测站具有各种各样的应用，例如通过开关或集线器。

36. 发明申请

US20060258290A1 SYSTEM AND METHOD FOR DETECTING A DEVICE REQUIRING POWER 有权
标题翻译：用于检测需要设备的系统和方法
公开(公告)号：US20060258290A1
公开(公告)日：2006-11-16
申请号：US11459815
申请日：2006-07-25
申请人： Vafa Rakshani , Nariman Yousefi
发明人： Vafa Rakshani , Nariman Yousefi
IPC分类号： H04B1/00
CPC分类号： H04L12/2697 , G06F1/266 , H02J13/0048 , H04L1/242 , H04L12/10 , H04L25/02 , H04L43/0817 , H04L43/50 , Y02B90/226 , Y04S20/16 , Y04S40/168 , Y10T307/832
摘要： A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
摘要翻译：用电力检测站实现用于检测需要电力的装置的系统和技术。功率检测系统包括具有输出和返回的检测器，当器件需要电力时，该检测器由器件耦合在一起。该检测器包括用于产生经由检测器输出传输到设备的测试脉冲的字产生器，以及用于将检测器输出与检测器返回值进行比较的比较器。电力检测站具有各种各样的应用，例如通过开关或集线器。

37. 发明授权

US06571181B1 System and method for detecting a device requiring power 有权
标题翻译：用于检测需要电源的设备的系统和方法
公开(公告)号：US06571181B1
公开(公告)日：2003-05-27
申请号：US09487738
申请日：2000-01-19
申请人： Vafa Rakshani , Nariman Yousefi
发明人： Vafa Rakshani , Nariman Yousefi
IPC分类号： G06F130
CPC分类号： H04L12/2697 , G06F1/266 , H02J13/0048 , H04L1/242 , H04L12/10 , H04L25/02 , H04L43/0817 , H04L43/50 , Y02B90/226 , Y04S20/16 , Y04S40/168 , Y10T307/832
摘要： A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
摘要翻译：用电力检测站实现用于检测需要电力的装置的系统和技术。功率检测系统包括具有输出和返回的检测器，当设备需要电力时，该检测器由设备耦合在一起。该检测器包括用于产生经由检测器输出传输到设备的测试脉冲的字产生器，以及用于将检测器输出与检测器返回值进行比较的比较器。电力检测站具有各种各样的应用，例如通过开关或集线器。

38. 发明授权

US5664108A High bit rate CSMA/CD using multiple pairs 失效
标题翻译：高比特率CSMA / CD使用多对
公开(公告)号：US5664108A
公开(公告)日：1997-09-02
申请号：US638304
申请日：1996-04-26
申请人： Robert Heaton , Nariman Yousefi , Khosrow Sadeghi , David Fischer
发明人： Robert Heaton , Nariman Yousefi , Khosrow Sadeghi , David Fischer
IPC分类号： H04L7/06 , H04L12/413 , H04L12/44 , G06F13/00
CPC分类号： H04L12/44 , H04L12/413 , H04L7/06 , Y10S370/902
摘要： In a fast Ethernet, each station is connected to the hub by four unshielded twisted pairs. A first pair is transmit only for the station and receive only for the hub, a second pair is transmit only for the hub and receive only for the station, and the third and fourth pairs are bidirectional. Both the station and the hub use their transmit only and the bidirectional pairs for data transmission and their receive only pair for collision detection.
摘要翻译：在快速以太网中，每个站通过四个非屏蔽双绞线连接到集线器。第一对是仅为站发送并且仅为集线器接收，第二对仅针对集线器进行发送，并仅为站接收，并且第三和第四对是双向的。站和集线器都使用它们的发送和双向对进行数据传输，并且它们的接收只对用于冲突检测。

39. 发明授权

US5448598A Analog PLL clock recovery circuit and a LAN transceiver employing the same 失效
标题翻译：模拟PLL时钟恢复电路和采用该模拟PLL时钟恢复电路的LAN收发器
公开(公告)号：US5448598A
公开(公告)日：1995-09-05
申请号：US88008
申请日：1993-07-06
申请人： Nariman Yousefi , Benjamin E. Nise , Kelly P. McClellan
发明人： Nariman Yousefi , Benjamin E. Nise , Kelly P. McClellan
IPC分类号： H03L7/089 , H04L7/033 , H04L7/00 , H03D3/24 , H04L25/36 , H04L25/40
CPC分类号： H04L7/033 , H03L7/0898
摘要： A VSLI transceiver chip incorporating an improved analog PLL circuit for recovering a digital clock signal from a digital data signal having pulse widths which may vary during each data cycle. The analog PLL clock recovery circuit comprises a phase detector, a gain control circuit, a variable current charge pump, a loop filter and a variable frequency oscillator. The phase detection means for detecting, during each data cycle, the phase error between the digital data signal and recovered digital clock signal, and produces first end second digital control pulse signals in response to the detection of the phase error. The gain control means produces third and fourth digital control pulse signals during each data cycle. The value of the third and fourth control pulse signals during each data cycle depends on the value of the digital data signal, the value of the recovered clock signal, and the value of the second digital control pulse signal during the data cycle, and the change in value of the third and fourth control pulse signals is responsive to the change in the value of the recovered digital clock signal. The variable current charge pump receives the first and second digital control pulse signals. The recovered digital clock signal is produced by variable frequency oscillator, having a clock frequency proportional to the produced analog control signal.
摘要翻译： VSLI收发器芯片包含改进的模拟PLL电路，用于从具有在每个数据周期期间可能变化的脉冲宽度的数字数据信号中恢复数字时钟信号。模拟PLL时钟恢复电路包括相位检测器，增益控制电路，可变电流电荷泵，环路滤波器和可变频率振荡器。相位检测装置，用于在每个数据周期期间检测数字数据信号与恢复的数字时钟信号之间的相位误差，并响应于相位误差的检测产生第一端第二数字控制脉冲信号。增益控制装置在每个数据周期期间产生第三和第四数字控制脉冲信号。在每个数据周期期间，第三和第四控制脉冲信号的值取决于数据数据信号的值，恢复的时钟信号的值和数据周期期间的第二数字控制脉冲信号的值，第三和第四控制脉冲信号的输入值响应于恢复的数字时钟信号的值的变化。可变电流电荷泵接收第一和第二数字控制脉冲信号。恢复的数字时钟信号由可变频率振荡器产生，具有与所产生的模拟控制信号成比例的时钟频率。

40. 发明授权

US08520553B2 Power dissipation management for wired transceivers 有权
标题翻译：有线收发器的功耗管理
公开(公告)号：US08520553B2
公开(公告)日：2013-08-27
申请号：US12944355
申请日：2010-11-11
申请人： Nariman Yousefi , Scott Powell
发明人： Nariman Yousefi , Scott Powell
IPC分类号： H04L12/28
CPC分类号： H04L12/12 , Y02D50/20 , Y02D50/40 , Y02D50/42
摘要： A system, method and apparatus for reducing a power consumed by a physical layer device (PHY). A length of a cable connecting the PHY to a link partner is determined. Based on the length, power provided to one or more components of the PHY, or any portion thereof, is reduced. The power provided is reduced while maintaining a level of reliability specified by a protocol governing operation of the PHY. The length can be determined using time-domain reflectometry (TDR) techniques. Any portion of an echo cancellation filter, a crosstalk filter, an equalizer, a precoder, an analog-to-digital converter (ADC), a digital-to-analog converter (DAC), a forward error correction (FEC) decoder and/or an FEC coder can be powered-down or power-optimized to reduce the overall power consumed by the PHY. The protocol governing operation of the PHY can be IEEE 802.3.
摘要翻译：一种用于减少物理层设备（PHY）消耗的功率的系统，方法和装置。确定将PHY连接到链路伙伴的电缆的长度。基于长度，减少了提供给PHY的一个或多个组件或其任何部分的功率。提供的功率降低，同时保持由控制PHY的操作的协议规定的可靠性水平。可以使用时域反射（TDR）技术确定长度。回波消除滤波器，串扰滤波器，均衡器，预编码器，模数转换器（ADC），数模转换器（DAC），前向纠错（FEC）解码器和/ 或者可以对FEC编码器进行掉电或功率优化，以减少PHY消耗的总体功耗。控制PHY的操作的协议可以是IEEE 802.3。

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