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1. 发明申请

US20070296456A1 Low-power ethernet transmitter 有权
标题翻译：低功耗以太网发射机
公开(公告)号：US20070296456A1
公开(公告)日：2007-12-27
申请号：US11798334
申请日：2007-05-11
申请人： Frank van der GOES , Christopher Ward , Jan Mulder , Ovidiu Bajdechi
发明人： Frank van der GOES , Christopher Ward , Jan Mulder , Ovidiu Bajdechi
IPC分类号： H03K17/16
CPC分类号： H03K3/012 , H03K19/0005 , H04L25/0278
摘要： An electrical circuit comprising a line driver for providing Ethernet signals is disclosed. The line driver comprises a voltage mode line driver for producing 1000BT and 100BT Ethernet signals and an active output impedance line driver arranged parallel to the voltage mode line driver. The line driver is capable of producing 1000BT or 100BT or 10BT Ethernet signals, wherein either the voltage mode line driver or the active impedance line driver is active.
摘要翻译：公开了一种包括用于提供以太网信号的线路驱动器的电路。线路驱动器包括用于产生1000BT和100BT以太网信号的电压模式线路驱动器和与电压模式线路驱动器并联布置的有源输出阻抗线路驱动器。线路驱动器能够产生1000BT或100BT或10BT以太网信号，其中电压模式线路驱动器或有源阻抗线路驱动器是活动的。

2. 发明授权

US08598906B2 Low-power ethernet transmitter 有权
标题翻译：低功耗以太网发射机
公开(公告)号：US08598906B2
公开(公告)日：2013-12-03
申请号：US11798334
申请日：2007-05-11
申请人： Frank van der Goes , Christopher M. Ward , Jan Mulder , Ovidiu Bajdechi
发明人： Frank van der Goes , Christopher M. Ward , Jan Mulder , Ovidiu Bajdechi
IPC分类号： H03K19/17
CPC分类号： H03K3/012 , H03K19/0005 , H04L25/0278
摘要： An electrical circuit comprising a line driver for providing Ethernet signals is disclosed. The line driver comprises a voltage mode line driver for producing 1000BT and 100BT Ethernet signals and an active output impedance line driver arranged parallel to the voltage mode line driver. The line driver is capable of producing 1000BT or 100BT or 10BT Ethernet signals, wherein either the voltage mode line driver or the active impedance line driver is active.
摘要翻译：公开了一种包括用于提供以太网信号的线路驱动器的电路。线路驱动器包括用于产生1000BT和100BT以太网信号的电压模式线路驱动器和与电压模式线路驱动器并联布置的有源输出阻抗线路驱动器。线路驱动器能够产生1000BT或100BT或10BT以太网信号，其中电压模式线路驱动器或有源阻抗线路驱动器是活动的。

3. 发明申请

US20120038393A1 Mode Dependent Driving of the Center Tap in Ethernet Communications 有权
标题翻译：以太网通信中的中心点的方式驱动
公开(公告)号：US20120038393A1
公开(公告)日：2012-02-16
申请号：US12855432
申请日：2010-08-12
申请人： Frank VAN DER GOES , Christopher Ward , Ovidiu Bajdechi , Erol Arslan
发明人： Frank VAN DER GOES , Christopher Ward , Ovidiu Bajdechi , Erol Arslan
IPC分类号： H03K3/00
CPC分类号： H04L25/0266 , H04L12/10 , H04L25/0272 , H04L25/028 , H04L25/0282
摘要： An output stage comprising a current mode line driver, a voltage mode line driver, and a center-tapped transformer for coupling data provided by the line drivers to a transmission line is provided herein. The output stage is configured to operate in a backwards compatible Ethernet communication device. For example, the Ethernet communication device is configured to support 10G Ethernet and legacy Ethernet modes of 10BASE-T, 100BASE-T, and 1000BASE-T. The current mode line driver can be utilized while operating in the 10G Ethernet mode to provide high linearity. The voltage mode line driver can be utilized while operating in legacy mode to conserve power. In order to accommodate the use of two different line drivers, a switch and/or a voltage regulator is used to couple/decouple a dc voltage to a center-tap of the transformer based on which of the two different line drivers is currently active.
摘要翻译：本文提供了一种包括电流模式线驱动器，电压模式线驱动器和用于将线驱动器提供给传输线的数据耦合的中心抽头变压器的输出级。输出级被配置为在向后兼容的以太网通信设备中操作。例如，以太网通信设备被配置为支持10BASE-T，100BASE-T和1000BASE-T的10G以太网和传统以太网模式。当在10G以太网模式下工作时，可以利用当前的模式线路驱动器来提供高线性度。电压模式线路驱动器可以在传统模式下工作以节省电力。为了适应两种不同的线路驱动器的使用，开关和/或电压调节器用于基于两个不同的线路驱动器当前处于活动状态，将直流电压耦合到/去耦合到变压器的中心抽头。

4. 发明授权

US08446184B2 Mode dependent driving of the center tap in ethernet communications 有权
标题翻译：以太网通讯中心抽头的方式驱动
公开(公告)号：US08446184B2
公开(公告)日：2013-05-21
申请号：US12855432
申请日：2010-08-12
申请人： Frank Van Der Goes , Christopher Ward , Ovidiu Bajdechi , Erol Arslan
发明人： Frank Van Der Goes , Christopher Ward , Ovidiu Bajdechi , Erol Arslan
IPC分类号： H03K3/00
CPC分类号： H04L25/0266 , H04L12/10 , H04L25/0272 , H04L25/028 , H04L25/0282
摘要： An output stage comprising a current mode line driver, a voltage mode line driver, and a center-tapped transformer for coupling data provided by the line drivers to a transmission line is provided herein. The output stage is configured to operate in a backwards compatible Ethernet communication device. For example, the Ethernet communication device is configured to support 10G Ethernet and legacy Ethernet modes of 10BASE-T, 100BASE-T, and 1000BASE-T. The current mode line driver can be utilized while operating in the 10G Ethernet mode to provide high linearity. The voltage mode line driver can be utilized while operating in legacy mode to conserve power. In order to accommodate the use of two different line drivers, a switch and/or a voltage regulator is used to couple/decouple a dc voltage to a center-tap of the transformer based on which of the two different line drivers is currently active.
摘要翻译：本文提供了一种包括电流模式线驱动器，电压模式线驱动器和用于将线驱动器提供给传输线的数据耦合的中心抽头变压器的输出级。输出级被配置为在向后兼容的以太网通信设备中操作。例如，以太网通信设备被配置为支持10BASE-T，100BASE-T和1000BASE-T的10G以太网和传统以太网模式。当在10G以太网模式下工作时，可以利用当前的模式线路驱动器来提供高线性度。电压模式线路驱动器可以在传统模式下工作以节省电力。为了适应两种不同的线路驱动器的使用，开关和/或电压调节器用于基于两个不同的线路驱动器当前处于活动状态来将直流电压耦合到/去耦合到变压器的中心抽头。

5. 发明授权

US08325756B2 Method and system for a power reduction scheme for Ethernet PHYs 有权
标题翻译：用于以太网PHY功率降低方案的方法和系统
公开(公告)号：US08325756B2
公开(公告)日：2012-12-04
申请号：US11734147
申请日：2007-04-11
申请人： Mark Berman , Manolito Catalasan , Ovidiu Bajdechi , Christopher M. Ward , Bruce H. Conway , Derek Tam , Frank Van Der Goes
发明人： Mark Berman , Manolito Catalasan , Ovidiu Bajdechi , Christopher M. Ward , Bruce H. Conway , Derek Tam , Frank Van Der Goes
IPC分类号： H04L12/66
CPC分类号： H04L12/66
摘要： Aspects of a method and system for a power reduction scheme for Ethernet PHYs are provided. An Ethernet PHY in a link partner may disable transmission via a transmit DAC integrated during an inactive connection, 10Base-T autonegotiation operation, and/or active 10Base-T connection with no data packet transmission. The DAC may be a voltage mode or current mode DAC. The PHY or a MAC device may determine when to disable transmission via the DAC. In this regard, the PHY or the MAC device may generate appropriate signals for disabling the transmission. The DAC may be enabled for transmission by the PHY or the MAC device when a connection becomes active or when an active 10Base-T connection is ready to transmit data. Moreover, the PHY may enable transmission via the DAC when operating in a forced 10Base-T mode of operation and the connection to the link partner is active.
摘要翻译：提供了用于以太网PHY的功率降低方案的方法和系统的方面。链路伙伴中的以太网PHY可以通过在无数据分组传输的非活动连接，10Base-T自动协商操作和/或活动10Base-T连接期间集成的发送DAC禁用传输。 DAC可以是电压模式或电流模式DAC。 PHY或MAC设备可以确定何时禁用经由DAC的传输。在这方面，PHY或MAC设备可以产生用于禁止传输的适当信号。当连接变为活动时或当有效的10Base-T连接准备好传输数据时，DAC可以被PHY或MAC设备启用。此外，当以强制10Base-T操作模式操作时，PHY可以经由DAC进行传输，并且与链路伙伴的连接是活动的。

6. 发明申请

US20130182717A1 Method And System For A Power Reduction Scheme For Ethernet PHYS 审中-公开
标题翻译：用于以太网PHYS的功率降低方案的方法和系统
公开(公告)号：US20130182717A1
公开(公告)日：2013-07-18
申请号：US13666901
申请日：2012-11-01
申请人： Mark Berman , Manolito Catalasan , Ovidiu Bajdechi , Christopher M. Ward , Bruce H. Conway , Derek Tam , Frank van der Goes
发明人： Mark Berman , Manolito Catalasan , Ovidiu Bajdechi , Christopher M. Ward , Bruce H. Conway , Derek Tam , Frank van der Goes
IPC分类号： H04L12/56
CPC分类号： H04L12/66
摘要： Aspects of a method and system for a power reduction scheme for Ethernet PHYs are provided. An Ethernet PHY in a link partner may disable transmission via a transmit DAC integrated during an inactive connection, 10Base-T autonegotiation operation, and/or active 10Base-T connection with no data packet transmission. The DAC may be a voltage mode or current mode DAC. The PHY or a MAC device may determine when to disable transmission via the DAC. In this regard, the PHY or the MAC device may generate appropriate signals for disabling the transmission. The DAC may be enabled for transmission by the PHY or the MAC device when a connection becomes active or when an active 10Base-T connection is ready to transmit data. Moreover, the PHY may enable transmission via the DAC when operating in a forced 10Base-T mode of operation and the connection to the link partner is active.
摘要翻译：提供了用于以太网PHY的功率降低方案的方法和系统的方面。链路伙伴中的以太网PHY可以通过在无数据分组传输的非活动连接，10Base-T自动协商操作和/或活动10Base-T连接期间集成的发送DAC禁用传输。 DAC可以是电压模式或电流模式DAC。 PHY或MAC设备可以确定何时禁用经由DAC的传输。在这方面，PHY或MAC设备可以产生用于禁止传输的适当信号。当连接变为活动时或当有效的10Base-T连接准备好传输数据时，DAC可以被PHY或MAC设备启用。此外，当以强制10Base-T操作模式操作时，PHY可以经由DAC进行传输，并且与链路伙伴的连接是活动的。

7. 发明申请

US20080253356A1 METHOD AND SYSTEM FOR A POWER REDUCTION SCHEME FOR ETHERNET PHYS 有权
标题翻译：用于以太网的功率降低方案的方法和系统
公开(公告)号：US20080253356A1
公开(公告)日：2008-10-16
申请号：US11734147
申请日：2007-04-11
申请人： Mark Berman , Manolito Catalasan , Ovidiu Bajdechi , Christopher M. Ward , Bruce H. Conway , Derek Tam , Frank van der Goes
发明人： Mark Berman , Manolito Catalasan , Ovidiu Bajdechi , Christopher M. Ward , Bruce H. Conway , Derek Tam , Frank van der Goes
IPC分类号： H04L12/66
CPC分类号： H04L12/66
摘要： Aspects of a method and system for a power reduction scheme for Ethernet PHYs are provided. An Ethernet PHY in a link partner may disable transmission via a transmit DAC integrated during an inactive connection, 10Base-T autonegotiation operation, and/or active 10Base-T connection with no data packet transmission. The DAC may be a voltage mode or current mode DAC. The PHY or a MAC device may determine when to disable transmission via the DAC. In this regard, the PHY or the MAC device may generate appropriate signals for disabling the transmission. The DAC may be enabled for transmission by the PHY or the MAC device when a connection becomes active or when an active 10Base-T connection is ready to transmit data. Moreover, the PHY may enable transmission via the DAC when operating in a forced 10Base-T mode of operation and the connection to the link partner is active.
摘要翻译：提供了用于以太网PHY的功率降低方案的方法和系统的方面。链路伙伴中的以太网PHY可以通过在无数据分组传输的非活动连接，10Base-T自动协商操作和/或活动10Base-T连接期间集成的发送DAC禁用传输。 DAC可以是电压模式或电流模式DAC。 PHY或MAC设备可以确定何时禁用经由DAC的传输。在这方面，PHY或MAC设备可以产生用于禁止传输的适当信号。当连接变为活动时或当有效的10Base-T连接准备好传输数据时，DAC可以被PHY或MAC设备启用。此外，当以强制10Base-T操作模式操作时，PHY可以经由DAC进行传输，并且与链路伙伴的连接是活动的。

8. 发明授权

US07403041B2 Techniques for enabling a 10BT active output impedance line driver using a low power supply 有权
标题翻译：使用低功率电源实现10BT有源输出阻抗线路驱动器的技术
公开(公告)号：US07403041B2
公开(公告)日：2008-07-22
申请号：US11798294
申请日：2007-05-11
申请人： Ovidiu Bajdechi , Christopher M. Ward
发明人： Ovidiu Bajdechi , Christopher M. Ward
IPC分类号： H03K19/094 , H03K19/0175
CPC分类号： H03F3/45475 , H03F3/45183 , H03F3/4521 , H03F3/45659 , H03F2200/513 , H03F2203/45066 , H03F2203/45116 , H03F2203/45138 , H03F2203/45236 , H03F2203/45522 , H03F2203/45526
摘要： A line driver for generating 10 BT signals is disclosed. Digital symbols to be transmitted via a 10 BT Ethernet line are converted by a digital-to-analog converter into a corresponding analog voltage signal, which is fed into an active output impedance line driver. The digital-to-analog converter also receives a reference voltage reflecting variations of the supply voltage and adjusts its output signal accordingly to provide a deliberately variable analog voltage signal to the line driver.
摘要翻译：公开了一种用于产生10个BT信号的线路驱动器。要通过10 BT以太网线传输的数字符号由数模转换器转换成相应的模拟电压信号，该信号被馈送到有源输出阻抗线路驱动器。数模转换器还接收反映电源电压变化的参考电压，并相应地调整其输出信号，以向线路驱动器提供故意可变的模拟电压信号。

9. 发明授权

US07710179B2 Programmable gain attenuator for track and hold amplifiers 有权
标题翻译：用于跟踪和保持放大器的可编程增益衰减器
公开(公告)号：US07710179B2
公开(公告)日：2010-05-04
申请号：US11341384
申请日：2006-01-30
申请人： Ovidiu Bajdechi , Franciscus Maria Leonardus van der Goes
发明人： Ovidiu Bajdechi , Franciscus Maria Leonardus van der Goes
IPC分类号： H03L5/00
CPC分类号： H03F3/45475 , H03F1/34 , H03F2203/45528 , H03F2203/45534 , H03G1/0088 , H03G3/001
摘要： A programmable gain attenuator (PGA) in particular to be used in a track-and-hold circuit is disclosed. The PGA is located in the feedback path around an operational amplifier. One tap switch is used to connect one PGA section to the output of the operational amplifier. The PGA section is capable of producing a multiplicity of different gain settings by using a multiplicity of secondary resistive devices in a voltage divider, wherein the resistive devices each can be independently coupled to a reference voltage.
摘要翻译：公开了一种特别用于跟踪和保持电路中的可编程增益衰减器（PGA）。 PGA位于运算放大器周围的反馈路径中。一个分接开关用于将一个PGA部分连接到运算放大器的输出。 PGA部分能够通过在分压器中使用多个次级电阻器件来产生多种不同的增益设置，其中每个电阻器件可以独立地耦合到参考电压。

10. 发明授权

US07701295B2 High-efficiency class-AB amplifier 有权
标题翻译：高效率AB类放大器
公开(公告)号：US07701295B2
公开(公告)日：2010-04-20
申请号：US11798293
申请日：2007-05-11
申请人： Ovidiu Bajdechi , Christopher M. Ward , Klaas Bult
发明人： Ovidiu Bajdechi , Christopher M. Ward , Klaas Bult
IPC分类号： H03F1/52
CPC分类号： H03F3/3028 , H03F1/0261 , H03F3/45192 , H03F3/45219 , H03F2203/30033 , H03F2203/30084 , H03F2203/30117 , H03F2203/45244 , H03F2203/45302 , H03F2203/45641 , H03F2203/45732
摘要： A high efficiency class-AB amplifier is disclosed. The amplifier comprises a first input stage and a second input stage, both coupled to a class-AB biasing mesh and an output stage, wherein the outputs of the first and second input stages are directly coupled to the output transistors in the output stage. In one embodiment, a first gate of the first input stage and of the second input stage are coupled together to receive the same input and a second gate of the first input stage and of the second input stage are coupled together to receive the same input. In another embodiment, the first input stage and second input stage may further comprise cascode transistors for coupling the two input stages to the class-AB biasing mesh. In yet another embodiment, a 3V supply is used and 1V transistors are used to improve gain and 3V transistors are used to protect the 1V transistors.
摘要翻译：公开了一种高效率AB类放大器。放大器包括耦合到AB类偏置网格和输出级的第一输入级和第二输入级，其中第一和第二输入级的输出直接耦合到输出级中的输出晶体管。在一个实施例中，第一输入级和第二输入级的第一栅极耦合在一起以接收相同的输入，并且第一输入级和第二输入级的第二栅极耦合在一起以接收相同的输入。在另一个实施例中，第一输入级和第二输入级还可以包括用于将两个输入级耦合到AB类偏置网的共源共栅晶体管。在另一个实施例中，使用3V电源，并且使用1V晶体管来改善增益，并且使用3V晶体管来保护1V晶体管。

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