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1140 条记录 (耗时 0.02 秒)

    Image signal read-out circuitry with offset correction
    22.
    发明公开
    Image signal read-out circuitry with offset correction 失效
    Bildsignalausleseschaltung mit Offset-Korrektur

    公开(公告)号：EP0786899A2

    公开(公告)日：1997-07-30

    申请号：EP97300163.9

    申请日：1997-01-13

    申请人： Hewlett-Packard Company

    发明人： Blalock, Travis N. ,  Baumgartner, Richard A. ,  Hornak, Thomas ,  Beard, David

    IPC分类号： H04N5/217

    CPC分类号： H03F3/45475 ,  H03F1/303 ,  H03F3/087 ,  H03F2200/249 ,  H03F2203/45212 ,  H04N5/3651 ,  H04N5/3658 ,  H04N5/3692 ,  H04N5/3742 ,  H04N5/3745 ,  H04N5/378

    摘要： Circuitry and method for transferring signals from a photoreceiver array (24) to computational circuitry (21) includes parallel transfer amplifiers (17) that receive periodic offset correction and includes DC removal amplifiers (19). In a first embodiment, each transfer amplifier has a differential circuit (46) that can be switched from a reset mode to a readout mode. In the readout mode, the voltage state at the output (108) is responsive to first and second inputs (74 and 76), with the second input being connected to a source (88) of a reference voltage. In the reset mode, the inputs are both connected to the reference voltage and the output is temporarily connected to a source (114) of a fixed reset voltage. An offset adjustment signal (144) is generated in response to detection of a voltage difference between the reset voltage and the actual voltage state at the output after the output has been disconnected from the source of the reset voltage. A single offset circuit is used to periodically and sequentially refresh the various transfer amplifiers. In a second embodiment, spatial frequency components of the outputs of the photoreceiver array are removed by DC removal amplifiers (208, 210 and 212). Each DC removal amplifier is assigned to a particular photoelement in the array, but receives outputs (232 and 234) from one or more other photoelements in the array. The output (236) of the amplifier is responsive to the differences between the analog signals input to the amplifier.

    摘要翻译： 将信号从光接收器阵列（24）传送到计算电路（21）的电路和方法包括接收周期性偏移校正并包括直流去除放大器（19）的并行传输放大器（17）。 在第一实施例中，每个传送放大器具有可从复位模式切换到读出模式的差分电路（46）。 在读出模式下，输出端（108）的电压状态响应于第一和第二输入（74和76），第二输入端连接到参考电压的源极（88）。 在复位模式下，输入都连接到参考电压，并且输出暂时连接到固定复位电压的源极（114）。 响应于在输出与复位电压源断开之后检测到复位电压和输出端的实际电压状态之间的电压差而产生偏移调整信号（144）。 使用单个偏移电路来周期性地和顺序地刷新各种传输放大器。 在第二实施例中，由DC去除放大器（208,210和212）去除光接收器阵列的输出的空间频率分量。 每个DC去除放大器分配给阵列中的特定光电元件，但是从阵列中的一个或多个其他光电元件接收输出（232和234）。 放大器的输出（236）响应于输入到放大器的模拟信号之间的差异。

    Compiler for increased data cache efficiency
    24.
    发明公开
    Compiler for increased data cache efficiency 失效
    编译器来提高数据高速缓冲存储器的性能

    公开(公告)号：EP0743598A3

    公开(公告)日：1997-07-23

    申请号：EP96303454.1

    申请日：1996-05-15

    申请人： Hewlett-Packard Company

    发明人： Santhanam, Vatsa

    IPC分类号： G06F9/45

    CPC分类号： G06F8/4442 ,  G06F9/30047 ,  G06F9/383

    摘要： A compiler that facilitates efficient insertion of explicit data prefetch instructions into loop structures within applications uses simple address expression analysis to determine data prefetching requirements. Analysis and explicit data cache prefetch instruction insertion are performed by the compiler in a machine-instruction level optimizer to provide access to more accurate expected loop iteration latency information. Such prefetch instruction insertion strategy tolerates worst-case alignment of user data structures relative to data cache lines. Execution profiles from previous runs of an application are exploited in the insertion of prefetch instructions into loops with internal control flow. Cache line reuse patterns across loop iterations are recognized to eliminate unnecessary prefetch instructions. The prefetch insertion algorithm is integrated with other low-level optimization phases, such as loop unrolling, register reassociation, and instruction scheduling. An alternative embodiment of the compiler limits the insertion of explicit prefetch instructions to those situations where the lower bound on the achievable loop iteration latency is unlikely to be increased as a result of the insertion.

    CLIP-TYPE ARTICLE CARRIER PACKAGING MECHANISM
    26.
    发明授权
    CLIP-TYPE ARTICLE CARRIER PACKAGING MECHANISM 失效
    封装器件用于车辆WHILE对象CLIP ARTIG穿

    公开(公告)号：EP0660788B1

    公开(公告)日：1997-07-16

    申请号：EP94910267.7

    申请日：1993-09-07

    申请人： RIVERWOOD INTERNATIONAL CORPORATION

    发明人： OLSON, Allen, L. Rural Route 1 ,  EMERSON, James, W.

    IPC分类号： B65B17/02

    CPC分类号： B65B17/025

    摘要： An article clip packaging machine (10) for applying carton members to the article rims of preselected article groups (12). The machine has a conveyor (52) with an infeed end for receiving preselected article groups. At least two carton member feeding structures (57, 73) are synchronized with the conveyor for placing carton base and carton top members (16, 17), respectively, on the preselected article groups. A securing assembly (15) attaches the carton base and top members to the rims of the article groups to provide article group carriers.

    Tunneling ferrimagnetic magnetoresistive sensor
    27.
    发明公开
    Tunneling ferrimagnetic magnetoresistive sensor 失效
    Ferrimagnetischer Magnetowiderstandsensor mit Tunneleffekt

    公开(公告)号：EP0783112A2

    公开(公告)日：1997-07-09

    申请号：EP96309486.7

    申请日：1996-12-24

    申请人： Hewlett-Packard Company

    发明人： Lee, Gregory S. ,  Mao, Erjl

    IPC分类号： G01R33/09 ,  G11B5/39

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G01R33/093 ,  G01R33/098 ,  G11B5/33 ,  G11B5/3903 ,  G11B2005/3996 ,  H01F10/3254

    摘要： A tunneling ferrimagnetic magnetoresistive sensor (10, 30, 110) that has a - R/R greater than that of known magnetoresistive sensors, and that, with appropriate electrode materials, can undergo a substantial change in resistance in response to a magnetic field in the intensity range of 10s of Oe, which is typical of the intensity of the magnetic fields encountered in magnetic recording media such as discs and tapes. The tunneling ferrimagnetic magnetoresistive sensor is composed of a stack of thin-film layers that include a layer (12) of a ferrimagnetic material, a layer (14) of a magnetic material, and a layer (16) of an insulator interposed between the layer of the ferrimagnetic material and the layer of the magnetic material. The ferrimagnetic material is conductive. The magnetic material is also conductive and has a coercivity substantially different from that of the ferrimagnetic material. The insulating layer is of a thickness that is sufficiently small to permit tunneling of current carriers between the layer of the ferrimagnetic material and the layer of the magnetic material.

    摘要翻译： 具有大于已知磁阻传感器的-R / R的隧道式铁磁性磁阻传感器（10,30,110），并且具有适当的电极材料的隧道式铁磁性磁阻传感器（10,30,110）可以经受相当于 Oe的强度范围为10s，这是磁记录介质如磁盘和磁带中遇到的磁场的强度的典型值。 隧道铁磁磁阻传感器由一层薄膜层组成，其中包括一层铁氧体材料的层（12），一层磁性材料层（14）和一层绝缘体（16） 的铁磁材料和磁性材料层。 铁氧体材料是导电的。 磁性材料也是导电的并且具有与铁氧体材料的矫顽力显着不同的矫顽力。 绝缘层的厚度足够小，以允许载流子在铁氧体材料层和磁性材料层之间隧穿。

    Colour correction with consideration of the scene illuminant
    29.
    发明公开
    Colour correction with consideration of the scene illuminant 失效
    Farbkorrektur unterBerücksichtigungder Vorlagenbeleuchtung

    公开(公告)号：EP0781036A1

    公开(公告)日：1997-06-25

    申请号：EP96308171.6

    申请日：1996-11-12

    申请人： Hewlett-Packard Company

    发明人： Farrell, Joyce E.

    IPC分类号： H04N1/60

    CPC分类号： H04N1/6086 ,  H04N1/603

    摘要： A color image editing system and method uses sensor responses in an image capture device to estimate and separate illuminant and surface reflectance in a scene. The system uses the estimated surface reflectances, along with a desired illuminant SPD, to calculate the corresponding XYZ values. To render the images on an imaging device , the XYZ values are converted into device-dependent display or printer values. The image data may be manipulated in a manner that is intuitive to humans, such as correcting the image data according to changes in lighting and surface color.
    An image capture device, such as a scanner or digital camera, represents a scene as image data that is resolved as device-dependent channels, such as RGB. For each channel, the spectral reflectances of the surfaces within the scene are described reflectance functions that are independnt of the lighting function that describes the illuminant spectral power distribution (SPD). Display operators can independently adjust the surface and lighting functions.

    摘要翻译： 彩色图像编辑系统和方法使用图像捕获装置中的传感器响应来估计和分离场景中的光源和表面反射率。 系统使用估计的表面反射率以及期望的光源SPD来计算相应的XYZ值。 要在成像设备上渲染图像，XYZ值将转换为与设备相关的显示或打印机值。 图像数据可以以对人类直观的方式进行操作，例如根据照明和表面颜色的变化校正图像数据。 诸如扫描仪或数码相机的图像捕获设备将场景视为被解析为诸如RGB的设备相关通道的图像数据。 对于每个通道，场景内的表面的光谱反射率描述与描述光源光谱功率分布（SPD）的照明功能无关的反射函数。 显示操作员可以独立调整表面和照明功能。