Interleaved return-to-zero, high performance digital-to-analog converter
    1.
    发明授权
    Interleaved return-to-zero, high performance digital-to-analog converter 有权
    交错归零,高性能数模转换器

    公开(公告)号:US08674866B2

    公开(公告)日:2014-03-18

    申请号:US13529282

    申请日:2012-06-21

    IPC分类号: H03M1/66

    摘要: In one method embodiment, receiving a data signal; and converting the data signal to an analog signal over plural clock cycles, the converting comprising: during a first clock cycle of the plural clock cycles, switching on one or more first current cells of a first bank while simultaneously a second bank comprising second current cells is switched off or almost off; and during a second clock cycle of the plural clock cycles, the second clock cycle immediately subsequent to the first clock cycle, switching on one or more of the second current cells of the second bank while simultaneously the first bank is switched off or almost off.

    摘要翻译: 在一个方法实施例中,接收数据信号; 以及在多个时钟周期内将所述数据信号转换为模拟信号,所述转换包括:在所述多个时钟周期的第一时钟周期期间,接通第一存储体的一个或多个第一当前单元,同时包含第二存储单元 被关闭或几乎关闭; 并且在所述多个时钟周期的第二时钟周期期间,紧接着所述第一时钟周期之后的所述第二时钟周期,接通所述第二存储体的一个或多个第二电流单元,同时所述第一存储体被切断或几乎关闭。

    Method And System For A Power Reduction Scheme For Ethernet PHYS
    2.
    发明申请
    Method And System For A Power Reduction Scheme For Ethernet PHYS 审中-公开
    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

    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。

    Histogram-Based Linearization of Analog-to-Digital Converters
    3.
    发明申请
    Histogram-Based Linearization of Analog-to-Digital Converters 审中-公开
    模数转换器的基于直方图的线性化

    公开(公告)号:US20130085703A1

    公开(公告)日:2013-04-04

    申请号:US13249845

    申请日:2011-09-30

    IPC分类号: G06F17/17 G06F19/00

    CPC分类号: G06F17/17 H03M1/1042 H03M1/12

    摘要: Embodiments provide histogram-based methods and system to estimate the transfer function of an ADC, and subsequently to linearize a non-linear ADC transfer function. Embodiments include blind algorithms that require no a priori knowledge of the input signal distribution. Embodiments can be implemented using cumulative (i.e., cumulative distribution function (CDF)) or non-cumulative (i.e., probability density function (PDF)) histograms. According to embodiments, a non-linear transfer function can be estimated by linearly approximating successive local intervals of the transfer function. Linearly approximated successive local intervals of the transfer function can then be used to fully characterize and closely estimate the transfer function.

    摘要翻译: 实施例提供基于直方图的方法和系统来估计ADC的传递函数,并且随后对非线性ADC传递函数进行线性化。 实施例包括不需要输入信号分布的先验知识的盲算法。 实施例可以使用累积(即,累积分布函数(CDF))或非累积(即,概率密度函数(PDF))直方图来实现。 根据实施例,可以通过线性近似传递函数的连续局部间隔来估计非线性传递函数。 传递函数的线性逼近的连续局部间隔可用于完全表征和密切估计传递函数。

    METHOD AND SYSTEM FOR A POWER REDUCTION SCHEME FOR ETHERNET PHYS
    4.
    发明申请
    METHOD AND SYSTEM FOR A POWER REDUCTION SCHEME FOR ETHERNET PHYS 有权
    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

    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。

    Interleaved track and hold circuit
    5.
    发明授权
    Interleaved track and hold circuit 有权
    交错轨道和保持电路

    公开(公告)号:US07545296B2

    公开(公告)日:2009-06-09

    申请号:US11843341

    申请日:2007-08-22

    IPC分类号: H03M1/12 G11C27/02

    CPC分类号: G11C27/026

    摘要: The invention relates to an interleaved track and hold circuit for tracking and holding a value of a continuous input signal and to provide discrete values thereof, wherein the circuit comprises a first and a second stage. To avoid tones caused by differences in the non-ideal elements when switching through several parallel second stages the circuit according to the invention comprises a single first stage and at least two second stages.

    摘要翻译: 本发明涉及用于跟踪和保持连续输入信号的值并提供其离散值的交错轨道和保持电路,其中电路包括第一和第二级。 为了避免在通过几个并联的第二级切换时由非理想元件的差异引起的音调,根据本发明的电路包括单个第一级和至少两个第二级。

    Low-power ethernet transmitter
    6.
    发明申请
    Low-power ethernet transmitter 有权
    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

    IPC分类号: H03K17/16

    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。

    INTERLEAVED RETURN-TO-ZERO, HIGH PERFORMANCE DIGITAL-TO-ANALOG CONVERTER
    7.
    发明申请
    INTERLEAVED RETURN-TO-ZERO, HIGH PERFORMANCE DIGITAL-TO-ANALOG CONVERTER 有权
    高性能数字到模拟转换器

    公开(公告)号:US20130342378A1

    公开(公告)日:2013-12-26

    申请号:US13529282

    申请日:2012-06-21

    IPC分类号: H03M1/66

    摘要: In one method embodiment, receiving a data signal; and converting the data signal to an analog signal over plural clock cycles, the converting comprising: during a first clock cycle of the plural clock cycles, switching on one or more first current cells of a first bank while simultaneously a second bank comprising second current cells is switched off or almost off; and during a second clock cycle of the plural clock cycles, the second clock cycle immediately subsequent to the first clock cycle, switching on one or more of the second current cells of the second bank while simultaneously the first bank is switched off or almost off.

    摘要翻译: 在一个方法实施例中,接收数据信号; 以及在多个时钟周期内将所述数据信号转换为模拟信号,所述转换包括:在所述多个时钟周期的第一时钟周期期间,接通第一存储体的一个或多个第一当前单元,同时包含第二存储单元 被关闭或几乎关闭; 并且在所述多个时钟周期的第二时钟周期期间,紧接着所述第一时钟周期之后的所述第二时钟周期,接通所述第二存储体的一个或多个第二电流单元,同时所述第一存储体被切断或几乎关闭。

    Mode dependent driving of the center tap in ethernet communications
    8.
    发明授权
    Mode dependent driving of the center tap in ethernet communications 有权
    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

    IPC分类号: H03K3/00

    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。

    Method and system for a power reduction scheme for Ethernet PHYs
    9.
    发明授权
    Method and system for a power reduction scheme for Ethernet PHYs 有权
    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

    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。

    Low-power ethernet transmitter
    10.
    发明授权
    Low-power ethernet transmitter 有权
    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

    IPC分类号: H03K19/17

    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。