Variable target autofocusing and range finder for measuring distance to
a subject
    23.
    发明授权
    Variable target autofocusing and range finder for measuring distance to a subject 失效
    可变目标自动对焦和测距仪,用于测量与被摄体的距离

    公开(公告)号:US5900927A

    公开(公告)日:1999-05-04

    申请号:US974711

    申请日:1997-11-19

    申请人: Jun Hasegawa

    发明人: Jun Hasegawa

    IPC分类号: G02B7/34 G03B13/36

    CPC分类号: G02B7/34

    摘要: An image pickup frame is divided into a plurality of areas. A contrast at each area is measured. An area where a main subject is located is detected by comparing contrasts at areas. A distance to a subject in the area where the main subject is located is measured. With this range finding technique, even if a main subject is not located at the central area of an image pickup frame, an area where the main subject is located can be identified and range finding can be performed only for that area.

    摘要翻译: 图像拾取框架被分成多个区域。 测量每个区域的对比度。 通过比较区域的对比度来检测主体所在的区域。 测量与被摄体位于的区域的距离。 利用这种测距技术,即使主要被摄体不位于图像拾取框架的中心区域,也可以识别主要被摄体位于的区域,并且可以仅针对该区域进行测距。

    Image reading apparatus
    24.
    发明授权
    Image reading apparatus 失效
    图像读取装置

    公开(公告)号:US5805306A

    公开(公告)日:1998-09-08

    申请号:US681089

    申请日:1996-07-22

    摘要: An image reading apparatus for approximately obtaining an image signal which might have been obtained if scanned in a second direction using an image signal obtained by scanning in a first direction. The image apparatus includes a conveyer for conveying a document, a detector for detecting the inclination of the conveyed document, and a window generator for generating a window signal. Also included is an image reader for reading an image by scanning the document in a first direction at a width broader than the width of the document and reading the scanned image only when the window signal is present to produce an issuing image signal. Also included is a first corrector for adjusting the start timing of the window signal so that the window signal may be started when the scanning passes through the beginning end of the document by reference to the inclination angle of the document. Also included is a second corrector for dividing the image signal of each sweep for the first direction after the first correction into a plurality of image signal blocks linking a plurality of the image signal blocks and approximate image signal which might have been obtained if scanned in the second direction.

    摘要翻译: 一种图像读取装置,用于近似获得如果使用通过沿第一方向进行扫描获得的图像信号在第二方向上扫描的图像信号。 图像装置包括用于传送文件的传送器,用于检测所传送文件的倾斜度的检测器,以及用于产生窗口信号的窗口发生器。 还包括图像读取器,用于通过以比文件宽度更宽的宽度沿第一方向扫描原稿并仅在存在窗口信号以产生发出图像信号时读取扫描图像来读取图像。 还包括第一校正器,用于调整窗口信号的开始定时,使得当扫描通过参考文档的倾斜角度的扫描通过文档的开始端时可以开始窗口信号。 还包括第二校正器,用于将在第一校正之后的第一方向的每个扫描的图像信号分割成链接多个图像信号块的多个图像信号块以及如果在 第二个方向

    Phase difference detection type rangefinder and method of measuring
subject distance
    25.
    发明授权
    Phase difference detection type rangefinder and method of measuring subject distance 失效
    相位差检测型测距仪及测距距离测量方法

    公开(公告)号:US5568249A

    公开(公告)日:1996-10-22

    申请号:US229818

    申请日:1994-04-19

    CPC分类号: G01S11/12 G02B7/32

    摘要: A phase difference detection type rangefinder is provided which calculates a distance value of each subject of two or more subjects at different distances. The rangefinder has a correlation calculation unit for calculating a correlation factor between images of a same subject focussed on a base photosensor and a reference photosensor, a second order differentiation unit for calculating second order differential values of correlation factors calculated by the correlation calculation unit, a second order differential value comparison unit for selecting a maximum second order differential value from the second order differential values calculated by the second order differentiation unit, a three-point interpolation unit for calculating an interpolation value through three-point interpolation using the maximum second order differential value and two second order differential values having the phases before and after the phase of the maximum second order differential value, and a distance value calculation unit for calculating a distance value from the phase of the maximum second order differential value and the interpolation value.

    摘要翻译: 提供一种相位差检测型测距仪,其计算不同距离的两个或更多个被摄体的每个被摄体的距离值。 测距仪具有相关计算单元,用于计算聚焦在基础光电传感器上的相同对象的图像与参考光电传感器之间的相关因子;二阶微分单元,用于计算由相关计算单元计算的相关因子的二阶微分值, 二阶微分值比较单元,用于从由二阶微分单元计算的二阶微分值中选择最大二阶微分值;三点插值单元,用于通过使用最大二阶微分的三点插值来计算插补值 以及具有在最大二阶微分值的相位之前和之后的相位的两个二阶微分值,以及距离值计算单元,用于根据最大二阶微分值和内插值的相位来计算距离值。

    Heat transfer image-receiving sheet
    27.
    发明授权
    Heat transfer image-receiving sheet 失效
    热转印图像接收片

    公开(公告)号:US5312797A

    公开(公告)日:1994-05-17

    申请号:US855965

    申请日:1992-03-23

    IPC分类号: B41M5/52 B41M5/035 B41M5/038

    摘要: A heat transfer image-receiving sheet for use in a heat transfer printing method using a sublimable dye, including (i) a substrate sheet and (ii) a dye-receiving layer provided on at least one surface of the substrate sheet. The dye receiving layer includes a polyester resin, wherein at least one of the diol component and the acid component of the polyester resin including an alicyclic compound. The heat transfer image-receiving sheet can produce a sharp image with a sufficiently high density, which image is excellent in fastness properties, in particular, in resistance to light, resistance to sebum and sweat and resistance to plasticizer.

    摘要翻译: 一种用于使用可升华染料的热转印打印方法中的传热影像接收片,包括(i)基片和(ii)设置在基片的至少一个表面上的染料接受层。 染料接受层包括聚酯树脂,其中二醇组分和聚酯树脂的酸组分中的至少一种包括脂环族化合物。 传热影像接收片材可以产生足够高密度的清晰图像,该图像具有优异的坚牢度特性,特别是耐光性,耐皮脂性,耐汗渍性和耐增塑剂性。

    Single chip solid state image sensing devices
    29.
    发明授权
    Single chip solid state image sensing devices 失效
    单芯片固态图像感应器件

    公开(公告)号:US5097339A

    公开(公告)日:1992-03-17

    申请号:US437271

    申请日:1989-11-16

    摘要: An image sensing system comprises photoelectric conversion element array which responds to the light from a subject and produces charges responding to the quantity of incident light, storage parts temporarily storing the charges produced by the array and a shift register which receives and outputs the charges in the storage parts. A first gate is installed between the array and the storage parts and a second gate is installed between the storage parts and the shift register. The storage time of the charges and the like can be controlled by controlling the first and the second gates by a control circuit. Then, when the subject is of high luminance, the charges are stored into the storage parts with the array and storage parts connected intact to each other by putting the first gating means in the ON state, and the completion of integration thereof is performed by putting the first gate in the OFF state. Also, when the subject is of low luminance, storage of charges is performed in the array with the first gate put in the OFF state, and a dark charges produced in the storage parts during that time is discharged before storing the charges of the above-mentioned arrays.

    Image sensing device having direct drainage of unwanted charges
    30.
    发明授权
    Image sensing device having direct drainage of unwanted charges 失效
    具有无偿收费的直接排水的图像感测装置

    公开(公告)号:US5083207A

    公开(公告)日:1992-01-21

    申请号:US593863

    申请日:1990-10-05

    摘要: An image sensing device comprises a light receiving unit having light receiving elements for producing electric charges corresponding to intensity of light received by the light receiving elements; an accumulator for accumulating the electric charges produced by the light receiving unit; a transferring unit for transferring the accumulated electric charges in response to a predetermined transfer clock; a discharge unit for discharging electric charges received; a first gate between the accumulator and the transferring unit for controlling the transference of the accumulated electric charges to the transferring unit; a second gate between the transferring unit and the discharge unit for controlling the transference of the electric charges in the transferring unit to the discharge unit; a gate control for controlling the first and second gates to interrupt the transference of electric charges through the first and second gates for performing the accumulation of the accumulator, to permit the transference of accumulated electric charges to the transferring unit after the accumulation of the accumulator is terminated, and to permit the transference of electric signals through the first and second gates to the discharge unit prior to commencement of the accumulation for discharging unnecessary charges in the accumulating unit and the transferring unit.