METHOD AND APPARATUS FOR AUTOMATIC EXPOSURE CONTROL IN AN ELECTRONIC IMAGING SYSTEM
    121.
    发明申请
    METHOD AND APPARATUS FOR AUTOMATIC EXPOSURE CONTROL IN AN ELECTRONIC IMAGING SYSTEM 审中-公开
    电子成像系统中自动曝光控制的方法与装置

    公开(公告)号:WO1992011727A1

    公开(公告)日:1992-07-09

    申请号:PCT/US1991009504

    申请日:1991-12-17

    CPC classification number: H04N5/2352

    Abstract: An apparatus for providing electronic exposure control, and a method of operating the same, that contains no moving parts is disclosed. The disclosed apparatus and method are based on the recognition that an electronic imaging device (14), such as a CCD imager, can be operated in a manner to provide both shuttering and aperture control functions. An exposure control unit (24) is provided that varies the gain of a variable gain amplifier (18) coupled to an electronic imaging device (14) in response to measured scene light.

    Abstract translation: 公开了一种用于提供电子曝光控制的装置及其操作方法,其不包含移动部件。 所公开的装置和方法基于识别,诸如CCD成像器的电子成像装置(14)可以以提供快门和光圈控制功能的方式操作。 提供曝光控制单元(24),其响应于测量的场景光改变耦合到电子成像装置(14)的可变增益放大器(18)的增益。

    METHOD AND APPARATUS FOR PROVIDING ADJUSTABLE ERROR CORRECTION
    122.
    发明申请
    METHOD AND APPARATUS FOR PROVIDING ADJUSTABLE ERROR CORRECTION 审中-公开
    提供可调错误纠正的方法和设备

    公开(公告)号:WO1992011700A2

    公开(公告)日:1992-07-09

    申请号:PCT/US1991009513

    申请日:1991-12-18

    CPC classification number: H04N5/945 H03M13/03

    Abstract: A method and apparatus for performing error correction is disclosed in which an optimum error correction algorithm to be applied to a digital data signal is selected based on a detected characteristic of the digital data signal. The selection of an optimum error correction algorithm based on a characteristic of the digital data signal insures maximum efficiency of the error correction process with a minimum impact on overall system throughput efficiency.

    Abstract translation: 描述了用于执行纠错的方法和装置,其中基于检测到的数字数据信号的特征来选择要应用于数字数据信号的最优纠错算法。 这一选择确保了纠错过程的最大效率,同时对系统的整体处理能力影响最小。

    DISK ARRAY IMAGE MEMORY FOR LASER PRINTER
    124.
    发明申请
    DISK ARRAY IMAGE MEMORY FOR LASER PRINTER 审中-公开
    激光打印机的磁盘阵列图像存储器

    公开(公告)号:WO1992011595A1

    公开(公告)日:1992-07-09

    申请号:PCT/US1991009495

    申请日:1991-12-17

    CPC classification number: G06F3/0601 G06F2003/0692

    Abstract: A radiographic laser printer (14) has high speed memory (16) for storing digital images. The high speed memory (16) includes an array of magnetic or optical disk storage devices which are accessed in parallel from a digital data bus (12). The use of external FIFO memory is eliminated by transferring data from the data bus in interleaved format directly into buffer memories located in the disk storage devices (16).

    Abstract translation: 射线照相激光打印机(14)具有用于存储数字图像的高速存储器(16)。 高速存储器(16)包括从数字数据总线(12)并行访问的磁盘或光盘存储设备的阵列。 通过将数据总线中的数据以交织格式直接传送到位于磁盘存储设备(16)中的缓冲存储器中,从而消除了外部FIFO存储器的使用。

    COLOR PHOTOGRAPHIC ELEMENT
    125.
    发明申请
    COLOR PHOTOGRAPHIC ELEMENT 审中-公开
    彩色摄影元素

    公开(公告)号:WO1992011573A1

    公开(公告)日:1992-07-09

    申请号:PCT/US1991009490

    申请日:1991-12-17

    CPC classification number: G03C7/3029

    Abstract: A color photographic silver halide negative working duplicating element comprising a support having thereon at least one red-sensitive photographic silver halide emulsion layer comprising at least one cyan image-dye forming coupler; at least one green-sensitive photographic silver halide emulsion layer comprising at least one magenta image-dye forming coupler; and, at least one blue-sensitive photographic silver halide emulsion layer comprising at least one yellow image-dye forming coupler, provides improved images when (a) at least one of the layers comprises a unit of at least two layers including a first layer and a second layer, the first layer having a higher photosensitivity than the second layers and being farther from the support than the second layers; (b) the firt layers contain an image-dye forming coupler in an amount insufficient to react with all the oxidized developer formed during development after maximum exposure; (c) the image-dye forming couplers of the first layers being in a dispersion having a mean particle size of less than 0.14 micron; and, (d) the silver halide grains of the first layers having a mean grain volume less than 0.015 cubic micron. Such a photographic element is especially useful in motion picture film duplication providing reduction in granularity of the image.

    COATING PROCESS
    128.
    发明申请
    COATING PROCESS 审中-公开
    涂装工艺

    公开(公告)号:WO1992011094A1

    公开(公告)日:1992-07-09

    申请号:PCT/EP1991002414

    申请日:1991-12-16

    Abstract: In curtain coating, uniform layer or layers are only obtained if the operational variables are held within precise limits. These limits define a "coating window". However, one of the boundaries of this "window" is governed by the occurrence of air-entrainment. Described herein is an improved coating process which allows the "coating window" to be enlarged. This is achieved by using a material adjacent the support onto which the liquid material is to be coated which readily shear-thins.

    Abstract translation: 在帘式涂层中,如果操作变量保持在精确的范围内,则仅获得均匀的层或层。 这些限制定义了“涂层窗口”。 然而,这个“窗口”的界限之一是由于夹带气体的发生。 这里描述了一种改进的涂布方法,其允许“涂布窗口”被扩大。 这是通过使用邻近载体的材料来实现的,液体材料将被涂覆在其上容易剪切。

    INTRAOCULAR LENSES WITH GRADIENT-REFRACTION INDEX
    129.
    发明申请
    INTRAOCULAR LENSES WITH GRADIENT-REFRACTION INDEX 审中-公开
    具有梯度折射指数的内窥镜

    公开(公告)号:WO1992010980A1

    公开(公告)日:1992-07-09

    申请号:PCT/US1991009079

    申请日:1991-12-10

    CPC classification number: A61F2/1618 Y10S623/901

    Abstract: The present invention relates to implants (22, 70, 90, 170) (intraocular lenses) for implantation in the human eyeball (20) to replace the natural crystalline lens. In general, the implant (22) includes a body (50) which includes anterior (52) and posterior (54) surfaces, an axis (58), and a periphery. The body (50) is formed of a transparent material having an index of refraction which varies with a predetermined profile from the axis (58) to the periphery of the body (50). In a first embodiment, the body (50) is formed of one element having a convex-convex shape and an index of refraction which decreases in the direction away from the axis (58) of the body (50). For dual-focus capabilities, the body (71) has an inner (76) and an outer zone with separate gradient profiles and surface curvatures, or an inner zone (76) which is offset from the axis (78) and is the center of the gradient profile. The inner (76) and outer zones provide focusing for nearby and distant objects respectively. In a second embodiment, the implant (170) includes an achromatic doublet lens (172) of first (174) and second (176) contacting elements formed of a transparent material. The transparent materials of the first (174) and second (176) elements have gradient indices of refraction which decrease in opposite directions from each other between the axis (180) to the periphery of the lens. Haptics (56) extend from the periphery of each implant (22, 70, 90, 170) for engagement with appropriate portions of the eyeball (20).

    HIGH RESOLUTION CHARGE-COUPLED DEVICE (CCD) CAMERA SYSTEM
    130.
    发明申请
    HIGH RESOLUTION CHARGE-COUPLED DEVICE (CCD) CAMERA SYSTEM 审中-公开
    高分辨率电荷耦合器件(CCD)相机系统

    公开(公告)号:WO1992010910A1

    公开(公告)日:1992-06-25

    申请号:PCT/US1991008765

    申请日:1991-11-26

    CPC classification number: H01L29/76841 H01L27/1485 H04N5/361

    Abstract: The present invention is a high resolution charge-coupled device (CCD) camera system (10) having a CCD camera (12) which is capable of operating at a low data rate (e.g., 1 to 2.5 MHz) that is compatible with the input data rate of a computer (16). An output of the CCD camera (12) is coupled through an analog-to-digital convertor (14) (A/D) to an input of the computer (16) which receives and analyzes the output of the camera. The CCD camera (12) contains a CCD image sensor (18) which is a two-phase sensor capable of operating in an accumulation mode at room temperature so as to reduce the dark current generated in the sensor. Thus, the CCD camera system (10) is of simple construction so as to be relatively inexpensive and can operate at room temperature with reduced dark current.

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