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    • 61. 发明授权
    • Video imaging system including a digital image sensor and a digital signal processor
    • 视频成像系统包括数字图像传感器和数字信号处理器
    • US07483058B1
    • 2009-01-27
    • US10634302
    • 2003-08-04
    • Michael FrankRicardo J. MottaJustin ReyneriDavid Xiao Dong YangWilliam R. BidermannOdutola Oluseye Ewedemi
    • Michael FrankRicardo J. MottaJustin ReyneriDavid Xiao Dong YangWilliam R. BidermannOdutola Oluseye Ewedemi
    • H04N5/228
    • H04N5/3355H04N5/232
    • A video imaging system includes a digital image sensor for performing image capture operations and a digital image processor for performing image processing operations. The digital image sensor includes a sensor array outputting digital pixel data, an image buffer for storing the pixel data, a first processor and a first interface circuit for transferring the pixel data onto a pixel bus. The digital image processor includes a second interface circuit coupled to receive the pixel data from the pixel bus, a frame buffer coupled to store the pixel data, an image processing pipeline for processing the pixel data stored in the frame buffer into video data, and a second processor. The digital image sensor and the digital image processor transfer control information over a control interface bus and the digital image sensor performs the image capture operations independent of the image processing operations performed by the digital image processor.
    • 视频成像系统包括用于执行图像捕获操作的数字图像传感器和用于执行图像处理操作的数字图像处理器。 数字图像传感器包括输出数字像素数据的传感器阵列,用于存储像素数据的图像缓冲器,用于将像素数据传送到像素总线的第一处理器和第一接口电路。 数字图像处理器包括耦合以从像素总线接收像素数据的第二接口电路,耦合以存储像素数据的帧缓冲器,用于将存储在帧缓冲器中的像素数据处理为视频数据的图像处理流水线,以及 第二处理器。 数字图像传感器和数字图像处理器通过控制接口总线和数字图像传感器传送控制信息执行与数字图像处理器执行的图像处理操作无关的图像捕获操作。
    • 62. 发明申请
    • Removal of Stationary Noise Pattern From Digital Images
    • 从数字图像中去除静态噪声模式
    • US20080151081A1
    • 2008-06-26
    • US12043877
    • 2008-03-06
    • Michael Frank
    • Michael Frank
    • H04N5/217
    • G06T5/002G06T5/20G06T5/50G06T2207/10016G06T2207/20182H04N5/365
    • A method for removing a stationary noise pattern from digital images uses an adaptive noise estimation algorithm to calculate a prediction of the fixed pattern noise and a confidence estimate for the prediction. In one embodiment, a predicted noise value is obtained from the captured image and a predicted image derived from spatial and temporal pixel value prediction techniques. The predicted noise value is used to update a fixed pattern noise estimate only when the confidence estimate for the predicted image is high. In another embodiment, the confidence estimate is used as a weight factor for blending the noise prediction into the noise estimate. In yet another embodiment, the adaptive noise estimation algorithm is applied to a prediction area in the image for calculating scaling parameters which scaling parameters are used to calculate a noise estimate for the entire image based on a reference noise image.
    • 从数字图像中去除固定噪声模式的方法使用自适应噪声估计算法来计算固定模式噪声的预测和预测的置信估计。 在一个实施例中,从捕获的图像获得预测的噪声值,以及从空间和时间像素值预测技术导出的预测图像。 预测的噪声值仅在预测图像的置信度估计值高时用于更新固定模式噪声估计。 在另一个实施例中,将置信估计用作将噪声预测混合到噪声估计中的权重因子。 在另一个实施例中,自适应噪声估计算法被应用于图像中的预测区域,用于计算缩放参数,该缩放参数用于基于参考噪声图像来计算整个图像的噪声估计。
    • 64. 发明授权
    • Using a time invariant statistical process variable of a semiconductor chip as the chip identifier
    • 使用半导体芯片的时变不变统计过程变量作为芯片标识符
    • US07291507B2
    • 2007-11-06
    • US10950001
    • 2004-09-23
    • William R. BidermannMichael Frank
    • William R. BidermannMichael Frank
    • G01R31/26
    • H01L23/544H01L27/14643H01L27/148H01L2223/54413H01L2223/5444H01L2223/5448H01L2924/0002H01L2924/00
    • A method for providing an identifier for a semiconductor chip after the manufacture of the semiconductor chip using a fabrication process includes selecting one or more circuit elements formed on the semiconductor chip where each of the circuit elements having an electrical parameter that has a time-invariant statistical process variation, measuring data values of the electrical parameter of the one or more circuit elements, processing the data values, and deriving the identifier for the semiconductor chip using the processed data values. The identifier identifies the semiconductor chip from other semiconductor chips manufactured using the fabrication process. The circuit elements can be selected from the group of bipolar transistors, MOS transistors, light detecting pixel elements, and memory cells. The chip identification method is particularly useful for identifying image sensor chips where the dark current values or the defective pixel locations can be used as the chip identifier.
    • 一种用于在使用制造工艺制造半导体芯片之后为半导体芯片提供标识符的方法包括选择形成在半导体芯片上的一个或多个电路元件,其中每个电路元件具有电参数,该电参数具有时不变统计 处理变化,测量一个或多个电路元件的电参数的数据值,处理数据值,以及使用处理的数据值导出半导体芯片的标识符。 标识符从使用制造工艺制造的其他半导体芯片识别半导体芯片。 电路元件可以选自双极晶体管,MOS晶体管,光检测像素元件和存储单元组。 芯片识别方法对于识别其中可以使用暗电流值或缺陷像素位置作为芯片标识符的图像传感器芯片特别有用。
    • 65. 发明申请
    • SYSTEM FOR HANDLING MEMORY REQUESTS AND METHOD THEREOF
    • 用于处理存储器请求的系统及其方法
    • US20070255904A1
    • 2007-11-01
    • US11739322
    • 2007-04-24
    • Michael FrankSantiago Fernandez-GomezRobert LakerAki Niimura
    • Michael FrankSantiago Fernandez-GomezRobert LakerAki Niimura
    • G06F12/08
    • G06F13/1642
    • A system and methods are shown for handling multiple target memory requests. Memory read requests generated by a peripheral component interconnect (PCI) client are received by a PCI bus controller. The PCI bus controller passes the memory request to a memory controller used to access main memory. The memory controller passes the memory request to a bus interface unit used to access cache memory and a processor. The bus interface unit determines if cache memory can be used to provide the data associated with the PCI client's memory request. While the bus interface unit determines if cache memory may be used, the memory controller continues to process the memory request to main memory. If cache memory can be used, the bus interface unit provides the data to the PCI client and sends a notification to the memory controller. The memory controller identifies the memory request, or returned data associated with the request, and discards it to ensure no data is returned to the bus controller from the memory controller. Once the data is received from the bus interface unit, the bus controller is free to send new memory read requests to the memory controller.
    • 显示了用于处理多个目标存储器请求的系统和方法。 由PCI总线控制器接收由外围组件互连(PCI)客户机产生的存储器读取请求。 PCI总线控制器将存储器请求传递给用于访问主存储器的存储器控​​制器。 存储器控制器将存储器请求传递到用于访问高速缓冲存储器和处理器的总线接口单元。 总线接口单元确定是否可以使用高速缓存存储器来提供与PCI客户机的存储器请求相关联的数据。 当总线接口单元确定是否可以使用高速缓冲存储器时,存储器控制器继续处理对主存储器的存储器请求。 如果可以使用高速缓冲存储器,则总线接口单元向PCI客户端提供数据,并向存储器控制器发送通知。 存储器控制器识别与请求相关联的存储器请求或返回的数据,并丢弃它,以确保没有数据从存储器控制器返回总线控制器。 一旦从总线接口单元接收到数据,总线控制器就可以向存储器控制器发送新的存储器读请求。
    • 66. 发明授权
    • Tone correction method using a blending mask
    • 使用混合蒙版的色调校正方法
    • US07280705B1
    • 2007-10-09
    • US10634296
    • 2003-08-04
    • Michael FrankRicardo J. Motta
    • Michael FrankRicardo J. Motta
    • G06K9/40G06K9/00
    • H04N9/045H04N2209/046
    • A digital imaging system includes an image sensor, a frame buffer and a tone correction circuit. The tone correction circuit computes tone corrected pixel data using one or more tone correction curves. In operation, tone corrected pixel data for a first pixel is computed by generating a pixel mask for an m×n neighborhood of pixels surrounding the first pixel, applying a blending mask of weight factors to the pixel mask and computing a selector value based on the pixel mask and weight factors associated with the blending mask. The selector value is used to derive a first tone correction curve for use to compute the tone corrected pixel data for the first pixel. The first tone correction curve can be selected from the multiple tone correction curves based on the selector value or it can be derived by blending multiple tone correction curves based on the selector value.
    • 数字成像系统包括图像传感器,帧缓冲器和色调校正电路。 色调校正电路使用一个或多个色调校正曲线来计算色调校正像素数据。 在操作中,通过生成用于围绕第一像素的像素的m×n个像素的像素掩模来计算第一像素的色调校正像素数据,将加权因子的混合掩模应用于像素掩码,并基于像素掩码计算选择器值 和与混合掩模相关联的体重因子。 选择器值用于导出用于计算第一像素的色调校正像素数据的第一色调校正曲线。 可以根据选择器值从多个色调校正曲线中选择第一个色调校正曲线,或者可以通过根据选择器值混合多个色调校正曲线来导出。
    • 70. 发明申请
    • MEMS waveform generator and adiabatic logic circuits using the same
    • MEMS波形发生器和绝热逻辑电路使用相同
    • US20050253571A1
    • 2005-11-17
    • US11127926
    • 2005-05-11
    • Michael FrankHuikai Xie
    • Michael FrankHuikai Xie
    • B81B3/00G01R19/00H03K19/00
    • H03K4/94
    • A micro-electromechanical system (MEMS) waveform generator is provided. The MEMS waveform generator includes a plurality of capacitive sensors. Each of the plurality of capacitive sensors has a movable sensor portion and a corresponding fixed sensor portion. The movable and fixed sensor portions each have a plurality of electrically conductive features. One or more of the electrically conductive features has one or more predetermined non-uniform portions. The MEMS waveform generator further includes an actuator that receives a time-varying input signal and causes each movable sensor portion to move relative to a corresponding fixed sensor portion in response to the time-varying signal. The waveform generator provides a mechanism of synthesizing non-sinusoidal periodic waveforms in an energy-efficient manner. In the context of one exemplary application, the waveform generator provides a mechanism for driving adiabatic logic circuits with extremely low total power dissipation at a given level of performance.
    • 提供了微机电系统(MEMS)波形发生器。 MEMS波形发生器包括多个电容传感器。 多个电容传感器中的每一个具有可移动传感器部分和对应的固定传感器部分。 可移动和固定的传感器部分各自具有多个导电特征。 一个或多个导电特征具有一个或多个预定的不均匀部分。 MEMS波形发生器还包括一个致动器,其接收时变输入信号,并且响应于时变信号使每个可移动传感器部分相对于相应的固定传感器部分移动。 波形发生器提供以能量有效的方式合成非正弦周期波形的机制。 在一个示例性应用的上下文中,波形发生器提供用于在给定的性能水平下以非常低的总功率耗散来驱动绝热逻辑电路的机构。