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公开(公告)号：US3654846A
公开(公告)日：1972-04-11
申请号：US3654846D
申请日：1970-04-01
摘要： An electromagnetically driven mechanical shutter including a conductor element in a magnetic field for enabling the element to be moved laterally between first and second predetermined positions as a function of the current through the element, means, associated with the element, for introducing current therethrough and stop means associated with the element and adjacent one or both of the positions for positively establishing one or both of the positions of the element. A plurality of such shutters may be included in a linear array which may be combined with a source of radiation to be gated by the shutters to expose a photosensitive material to be printed upon and further combined with photosensitive means for sensing radiation from an object carrying information to be read.
摘要翻译： 一种电磁驱动的机械快门，其包括在磁场中的导体元件，用于使得元件能够在第一和第二预定位置之间横向移动，作为通过元件的电流的函数，与元件相关联的装置，用于引入电流并停止 与元件相关联的并且相邻的一个或两个位置的装置，用于肯定地建立元件的一个或两个位置。 多个这样的快门可以被包括在线性阵列中，该线性阵列可以与要被快门门控的辐射源组合以暴露要被打印的感光材料，并且与感光装置进一步组合以感测来自携带信息的物体的辐射 要读
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公开(公告)号：US3646257A
公开(公告)日：1972-02-29
申请号：US3646257D
申请日：1969-03-13
CPC分类号： H04N1/413
摘要： A system for providing differently coded signals to represent respective different types of information such as the indicia and margin portions of a document. As a result of successive line scans of the document a sequence of message symbols is generated for each line scan in which each sequence is differently coded to respectively represent areas of different nature along the scan line. Typically the areas of different nature are margin and indicia portions of the document. The scanning of the margin areas of the document can be selectively controlled to minimize coding of areas of margin information.
摘要翻译： 一种用于提供不同编码信号以表示各种不同类型的信息（例如文档的标记和边缘部分）的系统。 作为文档的连续行扫描的结果，为每行扫描生成一系列消息符号，其中每个序列被不同地编码以分别沿着扫描线表示不同性质的区域。 通常，不同性质的区域是文档的边距和标记部分。 可以选择性地控制文档的边缘区域的扫描，以最小化边缘信息区域的编码。
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公开(公告)号：US3700797A
公开(公告)日：1972-10-24
申请号：US3700797D
申请日：1969-12-31
发明人： WERNIKOFF ROBERT E
CPC分类号： H04N1/4097 , H04N1/411
摘要： The disclosed circuit and method detect and delete certain pulse sequence patterns from a binary data stream. When used in a facsimile system to eliminate single pulses from a binary data stream derived by scanning graphic information on a document, the resolution of the scanning system and the size of the graphic information areas being such that two or more pulses in the binary data stream are required to represent the minimum normal elemental area of graphic information, the invention both reduces appreciably the number of pulse sequences required to be communicated and also helps to eliminate isolated noise marks from the facsimile copy.
摘要翻译： 所公开的电路和方法从二进制数据流中检测和删除某些脉冲序列模式。 当用于传真系统以从通过扫描文档上的图形信息导出的二进制数据流中消除单个脉冲时，扫描系统的分辨率和图形信息区域的大小使二进制数据流中的两个或多个脉冲 需要表示图形信息的最小正常元素面积，本发明可以明显地减少需要传送的脉冲序列的数量，并且还有助于消除传真复制品中的隔离噪声标记。
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4.发明授权Light pen comprising sensors each sensitive to a different wavelength and corresponding filters arranged to selectively provide both large and small effective apertures 失效包含感光度不同波长的传感器和相应的过滤器选择性地提供两个大的和小的有效的接口
公开(公告)号：US3586861A
公开(公告)日：1971-06-22
申请号：US3586861D
申请日：1969-03-24
发明人： WERNIKOFF ROBERT E
CPC分类号： G06F3/03542
摘要： The disclosed light pen has a high resolution state and a low resolution state, either of which may be quickly and easily selected. When used to define locations on a cathode-ray tube display device, the low resolution state is particularly useful for erasing or other operations where a large area designation capability is preferable; the high resolution state is useful for pointing and other operations where it is desired to precisely define a location. The disclosed light pen is realized by incorporating plural sensing means each sensitive to a different wavelength of radiation and corresponding large and small areas subtending the aperture each of which transmits the wavelength to which a corresponding sensing means is sensitive. This facilitates electrically switching between a large effective aperture and a small effective aperture.
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