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1. 发明申请

US20060238237A1 Driver/equalizer with compensation for equalization non-idealities 失效
标题翻译：驱动器/均衡器补偿均衡非理想
公开(公告)号：US20060238237A1
公开(公告)日：2006-10-26
申请号：US11103789
申请日：2005-04-12
申请人： Steven Clements , Carrie Cox , Hayden Cranford,
发明人： Steven Clements , Carrie Cox , Hayden Cranford,
IPC分类号： H04B1/10
CPC分类号： H04L25/03885 , H04L25/0272 , H04L25/03343
摘要： A high speed serial data communication system includes provisions for the correction of equalization errors, particularly those errors introduced by equalizer non-idealities. The equalization is achieved at the data transmitter, and is based on dynamic current subtraction at the output of a differential pair. When bit time>0, the error current is removed or subtracted from the total driver current, thereby maintaining a constant total current from bit time 0 to bit time>0. The same result can also be achieved by subtracting current when bit time>0 using field effect transistors of the opposite gender. The error current can be determined empirically from simulation or through feedback using a replica of the driver. The circuits for achieving equalization error correction and the resulting electrical network analysis are shown and described.
摘要翻译：高速串行数据通信系统包括用于校正均衡误差的规定，特别是由均衡器非理想性引入的错误。在数据发射机上实现均衡，并且基于差分对的输出处的动态电流减法。当位时间> 0时，误差电流从总驱动器电流中去除或减去，从而保持从位时间0到位时间> 0的恒定总电流。通过使用相反性别的场效应晶体管减去位时间> 0时的电流，也可以实现相同的结果。误差电流可以从仿真或使用驱动程序的副本通过反馈凭经验确定。用于实现均衡纠错的电路和所得到的电网分析被显示和描述。

2. 发明申请

US20070103186A1 Self series terminated serial link transmitter having segmentation for amplitude, pre-emphasis, and slew rate control and voltage regulation for amplitude accuracy and high voltage protection 有权
标题翻译：自串式串行链路发射机具有用于振幅，预加重和转换速率控制的分段，以及用于振幅精度和高电压保护的电压调节
公开(公告)号：US20070103186A1
公开(公告)日：2007-05-10
申请号：US11263138
申请日：2005-10-27
申请人： Steven Clements , William Cornwell , Carrie Cox , Hayden Cranford , Todd Rasmus
发明人： Steven Clements , William Cornwell , Carrie Cox , Hayden Cranford , Todd Rasmus
IPC分类号： H03K19/003
CPC分类号： H03K17/164 , H03K19/018585 , H04L25/0272 , H04L25/0278 , H04L25/028
摘要： A circuit design method and transmitter that enables flexible control of amplitude, pre- emphasis, and slew rate utilizing a design of a segmented self-series terminated (SSST) transmitter having a parallel configuration of multiple, individually controllable segments of dual pull-up and pull-down transistors. Amplitude control, slew rate control and pre-emphasis control are enabled by manipulation/selection of normal or inverted inputs for the various segments. Also provided is a mechanism for providing/maintaining accurate output across a self-series terminated (SST) transmitter by regulating the supply voltage. Regulation of the supply voltage allows compatibility with conventional serial link receiver termination voltages and protects the transmitter output devices when those voltages are larger than the normal supply for the devices.
摘要翻译：一种电路设计方法和发射机，其利用具有双重上拉的多个单独可控段的并行配置的分段自串行终端（SSST）发射机的设计来灵活地控制幅度，预加重和转换速率，以及下拉晶体管。幅度控制，转换速率控制和预加重控制可以通过操作/选择各个段的正常或反相输入来实现。还提供了一种用于通过调节电源电压来提供/保持跨越自串式端接（SST）发射器的精确输出的机构。电源电压的调节允许与传统的串行链路接收器终端电压兼容，并在这些电压大于设备的正常供电时保护发射机输出设备。

3. 发明申请

US20070096720A1 Impedance calibration for source series terminated serial link transmitter 有权
标题翻译：源串联端接串行链路发射机的阻抗校准
公开(公告)号：US20070096720A1
公开(公告)日：2007-05-03
申请号：US11262101
申请日：2005-10-28
申请人： Steven Clements , William Cornwell , Carrie Cox , Hayden Cranford , Vernon Norman
发明人： Steven Clements , William Cornwell , Carrie Cox , Hayden Cranford , Vernon Norman
IPC分类号： G01R31/28
CPC分类号： G01R35/007 , Y10T29/49004 , Y10T29/4913 , Y10T29/49147 , Y10T29/49155 , Y10T29/49169 , Y10T29/49174
摘要： Substantially-accurate calibration of output impedance of a device-under-test (DUT) to within a predetermined range of allowable impedance. The DUT is part of a source series terminated (SST) serial link transmitter, in which two branches of parallel transistors each provide an impedance value when particular transistors of the parallel branch are turned on. The impedance value is added to a series-connected resistor to provide the output impedance. The DUT consists of one branch of parallel transistors in series with a resistor. Output impedance of the DUT is compared to the resistance of a reference resistor, and the comparator provides a control signal based on whether the output impedance falls within the pre-set percentage variance of the reference resistance. The control signal is processed by a FSM (finite state machine) that individually turns on or off the transistors within the parallel branch until the DUT impedance value falls within the desired range.
摘要翻译：将被测器件（DUT）的输出阻抗基本上精确地校准到允许阻抗的预定范围内。 DUT是源极串行端接（SST）串行链路发射机的一部分，其中当并联支路的特定晶体管导通时，并联晶体管的两个分支都提供阻抗值。将阻抗值加到串联电阻器上以提供输出阻抗。 DUT由与电阻器串联的并行晶体管的一个分支组成。将DUT的输出阻抗与参考电阻的电阻进行比较，并且比较器根据输出阻抗是否落在参考电阻的预设百分比方差内提供控制信号。控制信号由FSM（有限状态机）进行处理，FSM单独打开或关闭并联支路内的晶体管，直到DUT阻抗值落在所需范围内。

4. 发明申请

US20060245507A1 High speed serial link output stage having self adaptation for various impairments 失效
标题翻译：具有各种损伤的自适应的高速串行链路输出级
公开(公告)号：US20060245507A1
公开(公告)日：2006-11-02
申请号：US11119505
申请日：2005-04-29
申请人： Steven Clements , Carrie Cox , Hayden Cranford
发明人： Steven Clements , Carrie Cox , Hayden Cranford
IPC分类号： H04L25/00
CPC分类号： H04L25/0292 , H04L25/03885
摘要： A high speed serial link structure and method are provided, comprising a data driver and a replica driver structure, the replica driver structure comprising a replica driver, a calibration engine and a peak level detector. The calibration engine compares a peak level detector output to a reference value and responsively performs a data driver adjustment, wherein the data driver adjustment comprises at least one of a driver biasing adjustment, a driver intermediate stage bandwidth adjustment and a driver equalization setting adjustment. In some embodiments, the calibration engine incorporates a comparator and a digital state machine; in other embodiments, it incorporates an analog operational amplifier.
摘要翻译：提供了一种高速串行链路结构和方法，包括数据驱动器和复制驱动器结构，复制驱动器结构包括复制驱动器，校准引擎和峰值电平检测器。校准引擎将峰值电平检测器输出与参考值进行比较，并响应于执行数据驱动器调整，其中数据驱动器调整包括驱动器偏置调整，驱动器中间级带宽调整和驱动器均衡设置调整中的至少一个。在一些实施例中，校准引擎包括比较器和数字状态机; 在其他实施例中，它包括模拟运算放大器。

5. 发明申请

US20050105507A1 Power savings in serial link transmitters 失效
标题翻译：串行链路发射机节电
公开(公告)号：US20050105507A1
公开(公告)日：2005-05-19
申请号：US10697514
申请日：2003-10-30
申请人： Steven Clements , Carrie Cox , Hayden Cranford
发明人： Steven Clements , Carrie Cox , Hayden Cranford
IPC分类号： H03K17/16 , H03K19/00 , H04L25/02 , H04B1/26
CPC分类号： H04L25/028 , H03K17/163 , H03K17/164
摘要： Aspects of saving power in a serial link transmitter are described. The aspects include providing a parallel arrangement of segments, each segment comprising prebuffer and output stage circuitry of the serial link transmitter and each segment enabled independently to achieve multiple power levels and multiple levels of pre-emphasis while maintaining a substantially constant propagation delay in a signal path of the serial link transmitter. Further aspects include providing a bypass path in the prebuffer stage circuitry to implement a controllable idle state in the segments and tail current and resistive load elements in the prebuffer circuitry as sectioned portions for slew rate control capability. Also included is provision of a control element with pre-emphasis delay circuitry in the transmitter signal path to allow inversion of a last delayed bit of the pre-emphasis delay circuitry to achieve a polarity change of a pre-emphasis weight.
摘要翻译：描述了在串行链路发射机中节省功率的方面。这些方面包括提供段的并行布置，每个段包括串行链路发射机的预缓冲器和输出级电路，并且每个段独立地使能实现多个功率电平和多级预加重，同时保持信号中基本恒定的传播延迟串行链路发射机的路径。另外的方面包括在预缓冲器级电路中提供旁路路径，以实现段中的可控空闲状态，并将预缓冲器电路中的尾电流和电阻负载元件作为转换速率控制能力的切片部分。还包括在发射机信号路径中提供具有预加重延迟电路的控制元件，以允许预加重延迟电路的最后延迟位的反转，以实现预加重权重的极性改变。

6. 发明授权

US06382425B1 Mobile system for recovering material from construction waste and demolition debris 有权
标题翻译：用于从建筑垃圾和拆除垃圾中回收材料的移动系统
公开(公告)号：US06382425B1
公开(公告)日：2002-05-07
申请号：US09539440
申请日：2000-03-30
申请人： Robert H. Brickner , Steven Clements
发明人： Robert H. Brickner , Steven Clements
IPC分类号： B07B149
CPC分类号： B07B1/005 , B07B1/15 , Y10S209/93
摘要： A mobile system for recovering materials from construction waste or demolition debris is provided. The system includes a mobile wheeled chassis that has at least one picking station. A grapple is mounted on the wheeled chassis for selectively retrieving waste or debris from a jobsite. A screen is disposed on the wheeled chassis and is configured to receive the waste or debris from the grapple. The screen sorts the waste or debris into fines and oversized material. A conveyor transports the oversized material adjacent to at least one picking station to allow selected materials to be removed for further processing.
摘要翻译：提供了一种用于从建筑垃圾或拆除垃圾中回收材料的移动系统。该系统包括具有至少一个拾取站的移动轮式底盘。抓斗安装在轮式底盘上，用于从作业现场选择性地回收废物或碎屑。屏幕被布置在轮式底盘上并被配置为从抓斗接收废物或碎屑。屏幕将废物或碎屑分类为细粉和超大材料。传送带将超大尺寸的材料运送到邻近的至少一个拾取站，以允许选择的材料被去除以便进一步处理。

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