Multi-channel ranging for a cable modem
    3.
    发明授权
    Multi-channel ranging for a cable modem 有权
    电缆调制解调器的多通道测距

    公开(公告)号:US08111711B2

    公开(公告)日:2012-02-07

    申请号:US12334392

    申请日:2008-12-12

    IPC分类号: H04L7/04

    摘要: In one example, a Cable Modem Termination System (CMTS) sends first bandwidth allocation messages to a first upstream transmit interface on a cable modem and send second bandwidth allocation messages to a second upstream transmit interface on the cable modem. The bandwidth allocation messages indicate transmit windows for the cable modem to range over the interfaces. The transmit windows included in the first bandwidth allocation messages are spaced based on receipt of ranging requests from the second upstream transmit interface, and the transmit windows included in the second bandwidth allocation messages are spaced based on receipt of ranging requests from the first upstream transmit interface.

    摘要翻译: 在一个示例中,有线调制解调器终端系统(CMTS)将第一带宽分配消息发送到有线调制解调器上的第一上行传输接口,并向电缆调制解调器上的第二上行传输接口发送第二带宽分配消息。 带宽分配消息指示电缆调制解调器在接口上范围的传输窗口。 包括在第一带宽分配消息中的发送窗口基于来自第二上行发送接口的测距请求的接收而间隔开,并且包括在第二带宽分配消息中的发送窗口基于来自第一上行发送接口的测距请求的接收而间隔开 。

    MULTI-CHANNEL RANGING FOR A CABLE MODEM
    4.
    发明申请
    MULTI-CHANNEL RANGING FOR A CABLE MODEM 有权
    电缆调制解调器的多通道范围

    公开(公告)号:US20100154016A1

    公开(公告)日:2010-06-17

    申请号:US12334392

    申请日:2008-12-12

    IPC分类号: H04N7/173

    摘要: In one example, a Cable Modem Termination System (CMTS) sends first bandwidth allocation messages to a first upstream transmit interface on a cable modem and send second bandwidth allocation messages to a second upstream transmit interface on the cable modem. The bandwidth allocation messages indicate transmit windows for the cable modem to range over the interfaces. The transmit windows included in the first bandwidth allocation messages are spaced based on receipt of ranging requests from the second upstream transmit interface, and the transmit windows included in the second bandwidth allocation messages are spaced based on receipt of ranging requests from the first upstream transmit interface.

    摘要翻译: 在一个示例中,有线调制解调器终端系统(CMTS)将第一带宽分配消息发送到有线调制解调器上的第一上行传输接口,并向电缆调制解调器上的第二上行传输接口发送第二带宽分配消息。 带宽分配消息指示电缆调制解调器在接口上范围的传输窗口。 包括在第一带宽分配消息中的发送窗口基于来自第二上行发送接口的测距请求的接收而间隔开,并且包括在第二带宽分配消息中的发送窗口基于来自第一上行发送接口的测距请求的接收而间隔开 。

    Dynamically allocating channel bandwidth between interfaces
    5.
    发明授权
    Dynamically allocating channel bandwidth between interfaces 有权
    在接口之间动态分配信道带宽

    公开(公告)号:US08160098B1

    公开(公告)日:2012-04-17

    申请号:US12353946

    申请日:2009-01-14

    IPC分类号: H04J3/16

    摘要: In one example, a bandwidth allocation device allocates physical channel bandwidth between local interfaces. Thereafter, at a polling time, the bandwidth allocation device determines whether there is communication activity between each local interface and the physical channel. The bandwidth allocation device can then dynamically reallocate the physical channel bandwidth at the polling time according to the communication activity determinations.

    摘要翻译: 在一个示例中,带宽分配设备在本地接口之间分配物理信道带宽。 此后,在轮询时间,带宽分配装置确定每个本地接口与物理信道之间是否存在通信活动。 然后,带宽分配设备可以根据通信活动确定在轮询时间动态地重新分配物理信道带宽。

    LASER SCRIBING AND PLASMA ETCH FOR HIGH DIE BREAK STRENGTH AND SMOOTH SIDEWALL
    8.
    发明申请
    LASER SCRIBING AND PLASMA ETCH FOR HIGH DIE BREAK STRENGTH AND SMOOTH SIDEWALL 审中-公开
    激光切割和等离子体蚀刻用于高切割强度和平滑面

    公开(公告)号:US20150011073A1

    公开(公告)日:2015-01-08

    申请号:US14293227

    申请日:2014-06-02

    摘要: In embodiments, a hybrid wafer or substrate dicing process involving an initial laser scribe and subsequent plasma etch is implemented for die singulation. The laser scribe process may be used to cleanly remove a mask layer, organic and inorganic dielectric layers, and device layers. The laser etch process may then be terminated upon exposure of, or partial etch of, the wafer or substrate. In embodiments, a hybrid plasma etching approach is employed to dice the wafers where an isotropic etch is employed to improve the die sidewall following an anisotropic etch with a plasma based on a combination of NF3 and CF4. The isotropic etch removes anisotropic etch byproducts, roughness, and/or scalloping from the anisotropically etched die sidewalls after die singulation.

    摘要翻译: 在实施例中,实施涉及初始激光划片和随后的等离子体蚀刻的混合晶片或衬底切割工艺用于裸片切割。 激光划片工艺可用于清洁地去除掩模层,有机和无机介电层以及器件层。 然后可以在曝光或部分蚀刻晶片或衬底时终止激光蚀刻工艺。 在实施例中,使用混合等离子体蚀刻方法来对晶片进行骰子,其中采用各向同性蚀刻来改善基于NF 3和CF 4的组合的等离子体的各向异性蚀刻之后的管芯侧壁。 各向同性蚀刻在单片切割之后从各向异性蚀刻的模具侧壁去除各向异性蚀刻副产物,粗糙度和/或扇贝。

    Computed tomography method and apparatus for centre-of-rotation determination
    9.
    发明授权
    Computed tomography method and apparatus for centre-of-rotation determination 有权
    用于旋转中心测定的计算机断层扫描方法和装置

    公开(公告)号:US08259897B2

    公开(公告)日:2012-09-04

    申请号:US12989170

    申请日:2008-04-25

    申请人: Tong Liu

    发明人: Tong Liu

    IPC分类号: A61B6/00 G01D18/00

    摘要: A method and apparatus is disclosed for determining the central ray of scanning an object on a detector in a computer tomography system. The method comprises producing a fan beam of x-rays at a fixed x-ray source and detecting the x-rays at the detector. The scanning projection data of the object under examination is received and the object is rotated under examination using a manipulator. After calculating the opposite projection pixel position and projection angle for each pixel, a mismatching is measured between the grey levels of all pixels and their calculated opposite projection pixels with a set of assumed central ray, and identifying the minimum of the measurement as the true central ray.

    摘要翻译: 公开了一种用于确定计算机断层摄影系统中检测器上的物体扫描的中心射线的方法和装置。 该方法包括在固定的x射线源处产生x射线的扇形束并检测检测器处的​​X射线。 接收检查对象的扫描投影数据,并使用机械手对物体进行检查。 在计算每个像素的相对投影像素位置和投影角度之后,在一组假设的中心射线之间测量所有像素的灰度级与其计算出的相反投影像素之间的失配,并将测量的最小值确定为真实中心 射线。

    Phase noise shaping using sigma delta modulation in a timing recovery unit
    10.
    发明授权
    Phase noise shaping using sigma delta modulation in a timing recovery unit 有权
    在定时恢复单元中使用Σ-Δ调制的相位噪声整形

    公开(公告)号:US08031783B1

    公开(公告)日:2011-10-04

    申请号:US12754511

    申请日:2010-04-05

    IPC分类号: H04B14/06 H04L7/00 H03M1/20

    摘要: A method and apparatus for converting a high precision digital word into a high precision analog value is disclosed. A sigma delta modulator applies a digital input signal to a dither signal to generate a combined signal for sampling. A digital-to-analog converter quantizes the combined signal. An analog filter provides a cutoff at a bandwidth of interest to remove out of band quantization noise and signals. An I transfer function and a Q transfer function can be coupled between the sigma delta modulator and the digital-to-analog converter for mapping of the combined signal. The apparatus can also include a phase interpolator for receiving the output signal and outputting a clock recovery phase.

    摘要翻译: 公开了一种用于将高精度数字字转换为高精度模拟值的方法和装置。 Σ-Δ调制器将数字输入信号施加到抖动信号以产生用于采样的组合信号。 数模转换器对组合信号进行量化。 模拟滤波器在感兴趣的带宽上提供截止以去除带外量化噪声和信号。 可以在Σ-Δ调制器和数 - 模转换器之间耦合I传递函数和Q传递函数,用于映射组合信号。 该装置还可以包括用于接收输出信号并输出​​时钟恢复阶段的相位插值器。