Multiple interconnected ring oscillator circuit
    73.
    发明授权
    Multiple interconnected ring oscillator circuit 失效
    多个互连环形振荡器电路

    公开(公告)号:US5475344A

    公开(公告)日:1995-12-12

    申请号:US200776

    申请日:1994-02-22

    摘要: An array oscillator circuit is disclosed herein. The array oscillator circuit includes a plurality of ring oscillators, each ring oscillator having a plurality of buffer stages for generating output signals on a like plurality of oscillator output ports. Interconnections are provided between each of the plurality of ring oscillators and at least one other of the plurality of ring oscillators such that the plurality of ring oscillators oscillate at identical frequencies and such that the output signals on the each ring oscillator's plurality of oscillator output ports have a phase offset from the signals generated on corresponding ones of the other ring oscillator's oscillator output ports. A multiplexer provides an electrical connection to a selected one of the plurality of oscillator output ports of the plurality of ring oscillators.

    摘要翻译: 本文公开了阵列振荡器电路。 阵列振荡器电路包括多个环形振荡器,每个环形振荡器具有多个缓冲级,用于在相同的多个振荡器输出端口上产生输出信号。 在多个环形振荡器中的每一个和多个环形振荡器中的至少一个环形振荡器之间提供互连,使得多个环形振荡器以相同的频率振荡,并且使得每个环形振荡器的多个振荡器输出端口上的输出信号具有 与相应的其他环形振荡器的振荡器输出端口上产生的信号相位偏移。 多路复用器提供与多个环形振荡器的多个振荡器输出端口中的所选择的一个的电连接。

    Method and apparatus for power control in devices
    76.
    发明授权
    Method and apparatus for power control in devices 失效
    设备功率控制的方法和装置

    公开(公告)号:US5337285A

    公开(公告)日:1994-08-09

    申请号:US65804

    申请日:1993-05-21

    CPC分类号: G11C5/14

    摘要: A power control circuit to minimize power consumption of CMOS circuits by disabling/enabling the clock input to the CMOS circuit. A phase locked loop (PLL) or delay locked loop (DLL) drives a capacitive load of the component and a dummy load comparable to the component load. A standby latch is provided to control the clock input to the component. In a standby state, the clock signal is not provided to the component but the PLL/DLL continues to operate, driving the dummy load. Thus, when it is desirable to power on the circuit, the standby latch is reset and the clock signal is provided to the component, thereby turning on the component with little latency.

    摘要翻译: 电源控制电路,通过禁止/使能CMOS电路的时钟输入来最小化CMOS电路的功耗。 锁相环(PLL)或延迟锁定环(DLL)驱动组件的容性负载和与组件负载相当的虚拟负载。 提供备用锁存器来控制对组件的时钟输入。 在待机状态下,时钟信号不提供给组件,但PLL / DLL继续运行,驱动虚拟负载。 因此,当期望对电路通电时,备用锁存器被复位,并且时钟信号被提供给部件,从而以很小的延迟打开部件。

    Method and apparatus for determining a calibration signal
    77.
    发明授权
    Method and apparatus for determining a calibration signal 有权
    用于确定校准信号的方法和装置

    公开(公告)号:US08553752B2

    公开(公告)日:2013-10-08

    申请号:US12596133

    申请日:2008-01-30

    IPC分类号: H04B17/00

    摘要: Embodiments of a system for determining and optimizing the performance a signaling system are described. During operation, the system captures or measures a single-bit response (SBR) for the signaling system. Next, the system constructs an idealized inter-symbol-interference-free (ISI-free) SBR for the signaling system which is substantially free of inter-symbol-interference (ISI). The system then calculates an ISI-residual from the captured SBR and the idealized ISI-free SBR. Next, the system constructs a calibration bit pattern for the signaling system that is based substantially on the ISI-residual. Finally, the system uses the calibration bit pattern to calibrate, optimize and determine an aspect of the performance of the signaling system.

    摘要翻译: 描述了用于确定和优化信号系统的性能的系统的实施例。 在操作期间,系统捕获或测量信令系统的单位响应(SBR)。 接下来,该系统为基本上没有符号间干扰(ISI)的信令系统构建理想化的符号间无干扰(ISI-free)SBR。 然后系统从捕获的SBR和理想的无ISI的SBR计算ISI残差。 接下来,系统构建用于基本上基于ISI残差的信令系统的校准位模式。 最后,系统使用校准位模式来校准,优化和确定信号系统性能的一个方面。

    Correction of optical abberations
    78.
    发明授权
    Correction of optical abberations 有权
    修正光学残差

    公开(公告)号:US08358354B2

    公开(公告)日:2013-01-22

    申请号:US13466338

    申请日:2012-05-08

    IPC分类号: H04N5/228 G03B13/00 H04N5/232

    CPC分类号: H04N9/646 H04N5/3572

    摘要: Digital images are computed using an approach for correcting lens aberration. According to an example embodiment of the present invention, a digital imaging arrangement implements microlenses to direct light to photosensors that detect the light and generate data corresponding to the detected light. The generated data is used to compute an output image, where each output image pixel value corresponds to a selective weighting and summation of a subset of the detected photosensor values. The weighting is a function of characteristics of the imaging arrangement. In some applications, the weighting reduces the contribution of data from photosensors that contribute higher amounts of optical aberration to the corresponding output image pixel.

    摘要翻译: 使用用于校正透镜像差的方法来计算数字图像。 根据本发明的示例性实施例,数字成像装置实现微透镜以将光引导到检测光的光电传感器并产生对应于检测到的光的数据。 生成的数据用于计算输出图像,其中每个输出图像像素值对应于检测到的光电传感器值的子集的选择性加权和求和。 加权是成像装置的特征的函数。 在一些应用中,加权减少了对相应的输出图像像素贡献更大量的光学像差的光电传感器的数据的贡献。

    Variable imaging arrangements and methods therefor
    80.
    发明授权
    Variable imaging arrangements and methods therefor 有权
    可变成像布置及其方法

    公开(公告)号:US08248515B2

    公开(公告)日:2012-08-21

    申请号:US12278714

    申请日:2007-02-06

    摘要: Various approaches to imaging involve selecting directional and spatial resolution. According to an example embodiment, images are computed using an imaging arrangement to facilitate selective directional and spatial aspects of the detection and processing of light data. Light passed through a main lens is directed to photosensors via a plurality of microlenses. The separation between the microlenses and photosensors is set to facilitate directional and/or spatial resolution in recorded light data, and facilitating refocusing power and/or image resolution in images computed from the recorded light data. In one implementation, the separation is varied between zero and one focal length of the microlenses to respectively facilitate spatial and directional resolution (with increasing directional resolution, hence refocusing power, as the separation approaches one focal length).

    摘要翻译: 成像的各种方法涉及选择方向和空间分辨率。 根据示例实施例,使用成像装置来计算图像,以促进光数据的检测和处理的选择性方向和空间方面。 通过主透镜的光通过多个微透镜被引向光传感器。 微透镜和光电传感器之间的间隔被设置为有助于记录的光数据中的方向和/或空间分辨率,并且促进从记录的光数据计算的图像中的重新聚焦功率和/或图像分辨率。 在一个实施方式中,分离在微透镜的零和一个焦距之间变化,以分别促进空间和方向分辨率(随着方向分辨率的提高,因此随着分离接近一个焦距,重新聚焦功率)。