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1. 发明授权

US4706227A Acoustic obstruction detector and method 失效
标题翻译：声障探测器及方法
公开(公告)号：US4706227A
公开(公告)日：1987-11-10
申请号：US824723
申请日：1986-01-31
申请人： Dale R. DuVall , John E. Bateson , Lew V. Hewitt , David P. Hewitt
发明人： Dale R. DuVall , John E. Bateson , Lew V. Hewitt , David P. Hewitt
IPC分类号： B66B13/26 , E05F15/00 , G01S15/04 , G01S15/18 , G01S9/66
CPC分类号： G01S15/04 , B66B13/26 , E05F15/43 , G01S15/18 , E05F2015/433 , E05Y2900/104
摘要： Obstruction detector apparatus operatively coupled to an automatic electric door operator compares the time span of transmission and receipt of reflected echoes of ultrasonic energy within a door passageway obstruction zone with predetermined time spans in order to prevent door closure under conditions indicating passageway obstruction or system malfunction. Signal generators provide timing signals respectively representative of the anticipated time span of reflected echoes from locations in front of, and beyond, the door jamb opposite the ultrasonic transmitter and receiver transducers for comparison by a relay controller with the time of generation of a signal representing a reflected echo at the transducer receiver, the relay controller appropriately actuating a door operator relay in response to such comparison. Various network portions provide pulse generation to the transmitter, an initial blanking period during which reflected echoes are disregarded, and programmed gain control for electronically shaping an obstruction detection zone to a proximate area of specific interest.
摘要翻译：可操作地耦合到自动电动门操作器的障碍物检测器设备将门禁通道内的超声波能量的反射回波的时间跨度与预定的时间跨度相比较，以便在指示通道阻塞或系统故障的条件下防止门关闭。信号发生器提供定时信号，其分别代表来自与超声波发射器和接收器换能器相对的门侧面之前和之后的位置的反射回波的预期时间间隔，用于由继电器控制器与产生代表在传感器接收器处的反射回波，继电器控制器响应于这种比较，适当地致动门操作器继电器。各种网络部分向发射机提供脉冲产生，忽略反射回波的初始消隐周期，以及用于将障碍物检测区域电子成形到特定关注区域的编程增益控制。

2. 发明授权

US4429333A Document scanning system 失效
标题翻译：文件扫描系统
公开(公告)号：US4429333A
公开(公告)日：1984-01-31
申请号：US355826
申请日：1982-03-08
申请人： James W. Davis , Dale R. DuVall , Barry C. Kockler
发明人： James W. Davis , Dale R. DuVall , Barry C. Kockler
IPC分类号： H04N1/00 , H04N1/04 , H04N1/12 , H04N1/193 , H04N1/10
CPC分类号： H04N1/00578 , H04N1/0057 , H04N1/00596 , H04N1/00602 , H04N1/0061 , H04N1/04 , H04N1/0464 , H04N1/12 , H04N1/193
摘要： A document scanning system having a platen for scanning bulky documents and two separate exposing stations for front and reverse side scanning of automatically fed sheet-type original documents. The platen and the two exposing stations are arranged in a common plane for scanning by scanning elements carried on a linearly driven carriage. Image sensing is performed by CCD arrays mounted on the scanner carriage. Scanning at the two exposing stations is conducted with the scanner carriage stationary, while platen scanning proceeds with the scanner carriage moving linearly at a uniform speed.
摘要翻译：一种文件扫描系统，具有用于扫描大体积文件的压板和两个单独的曝光站，用于自动进给薄片型原稿的正面和反面扫描。压板和两个曝光站被布置在共同的平面中，用于通过在线性驱动的托架上携带的扫描元件进行扫描。图像感测由安装在扫描仪支架上的CCD阵列执行。在两个曝光站进行扫描，扫描器支架固定地进行扫描，同时扫描仪支架以均匀的速度线性移动。

3. 发明授权

US4532602A Device for electrical variable magnification of document image 失效
标题翻译：文件图像电可变放大装置
公开(公告)号：US4532602A
公开(公告)日：1985-07-30
申请号：US355807
申请日：1982-03-08
申请人： Dale R. DuVall
发明人： Dale R. DuVall
IPC分类号： G06T3/40 , H04N1/393 , G06G7/30 , G06F15/40
CPC分类号： G06T3/4007 , H04N1/3935
摘要： A system for altering the size of an image by a desired magnification after optical scanning thereof provides a plurality of output scan values differing in number from the number of sampled scan signals produced during the optical scanning. The output scan values are representative of the density of the image at pixel locations spaced across the image in dependence upon a selected magnification value. The system includes scanning means for providing the sample scan signals and converter means for converting the sampled scan signals to a corresponding sequence of digital scan values. A control circuit is responsive to a selected magnification value for providing a plurality of interpolation control values in synchronism with the sequence of digital scan values. The interpolation control values indicate the spatial relationship of output scan values with respect to pairs of successive digital scan values. An interpolation circuit is responsive to the sequence of digital scan values and to the interpolation control values and interpolates between pairs of the digital scan values to provide the output scan values.
摘要翻译：用于在光学扫描之后以期望的倍率改变图像的尺寸的系统提供与在光学扫描期间产生的采样的扫描信号的数量不同的多个输出扫描值。输出扫描值代表根据所选择的放大倍率值在图像间隔开的像素位置处的图像的密度。该系统包括用于提供采样扫描信号的扫描装置和用于将采样的扫描信号转换成相应的数字扫描值序列的转换器装置。控制电路响应于所选择的放大值，以与数字扫描值的序列同步地提供多个插值控制值。内插控制值表示输出扫描值相对于连续数字扫描值对的空间关系。内插电路响应于数字扫描值序列和内插控制值，并在数字扫描值对之间进行内插以提供输出扫描值。

4. 发明授权

US4157533A Independent channel automatic gain control for self-scanning photocell array 失效
标题翻译：用于自扫描光电管阵列的独立通道自动增益控制
公开(公告)号：US4157533A
公开(公告)日：1979-06-05
申请号：US854955
申请日：1977-11-25
申请人： Dale R. DuVall
发明人： Dale R. DuVall
IPC分类号： G06T1/00 , B41J2/45 , G06K9/38 , G06K9/12
CPC分类号： G06K9/38 , B41J2002/453 , G06K2209/01
摘要： A scanned photocell array has the gain for each photocell channel automatically controlled by establishing a scale range based upon the media being scanned. The apparent gain of each cell is varied by modulating the reference input of an analog to digital converter at the photocell scan rate.
摘要翻译：扫描的光电管阵列通过基于正被扫描的介质建立刻度范围来为每个光电池通道提供增益。通过以光电池扫描速率调制模数转换器的参考输入来改变每个单元的表观增益。

5. 发明授权

US5812895A Camera with negative identification system 失效
标题翻译：相机带负号识别系统
公开(公告)号：US5812895A
公开(公告)日：1998-09-22
申请号：US598601
申请日：1996-05-28
申请人： Dale R. DuVall , Jerry W. Lindenfelser , Larry D. McClellan , Patrick J. Gilligan , Roger M. Johnson , Charles Swanson
发明人： Dale R. DuVall , Jerry W. Lindenfelser , Larry D. McClellan , Patrick J. Gilligan , Roger M. Johnson , Charles Swanson
IPC分类号： G03B17/24
CPC分类号： G03B17/24 , G03B2206/004 , G03B2217/243
摘要： An automated film encoding and decoding system for bringing photographic film from the state of exposure to subject matter through all of the processes required to produce finished photos and package the same. The system includes an encoder coordinately operative with a camera for the placement of a human and machine readable code on the film the decoder capable of reading the code for the control of production-processing equipment in laboratories provided with such equipment. The human readability of the code accommodates production-processing of the film by attendant personnel and also allows for quality control check of automated production-processisng equipment. The encoding includes film frame identification information, subject matter information and registration mark information all of which may be utilized on a single exposure situation.
摘要翻译：一种自动化的胶片编码和解码系统，用于通过制作完成的照片所需的所有过程将包装曝光的摄影胶片带到主题。该系统包括与相机协同操作的编码器，用于在电影上放置人和机器可读代码，该解码器能够读取用于在具有这种设备的实验室中控制生产处理设备的代码。该代码的人的可读性适用于由人员进行的电影的生产处理，并允许对自动化生产加工设备进行质量控制检查。编码包括胶片帧识别信息，主题信息和注册标记信息，所有这些信息可以在单个曝光情况下使用。

6. 发明授权

US4422100A Document scanning apparatus 失效
标题翻译：文件扫描装置
公开(公告)号：US4422100A
公开(公告)日：1983-12-20
申请号：US355411
申请日：1982-03-08
申请人： Dale R. DuVall , Barry C. Kockler
发明人： Dale R. DuVall , Barry C. Kockler
IPC分类号： G03B27/52 , H04N1/00 , H04N1/028 , H04N1/04 , H04N1/10 , H04N1/12 , H04N1/193 , H04N1/24
CPC分类号： H04N1/0285 , G03B27/525 , H04N1/00519 , H04N1/02815 , H04N1/0287 , H04N1/0464 , H04N1/1026 , H04N1/1043 , H04N1/1048 , H04N1/1052 , H04N1/1017 , H04N1/12 , H04N1/193
摘要： An illuminator for a traveling scanner of a document scanning system is disclosed. The illuminator comprises an elliptic-cylindrical surface of about one-half an ellipse in section with a line light source lamp located on one elliptic focal line. The illuminator is positioned so that the line of a document being copied is located at the other elliptic focal line. A reflecting cylindrical light baffle is positioned over the lamp to reflect light that would otherwise not strike the elliptical reflecting surface back through the source and onto the elliptical reflecting surface. The open end of the ellipse is covered with a heat filter to protect the material being copied. The ellipse is set at a relatively small angle, and a perpendicular reflection of material from the document being copied passes through a slot in the heat filter and a slot in the base of the ellipse for further sensing.
摘要翻译：公开了一种用于文件扫描系统的旅行扫描器的照明器。照明器包括与位于一个椭圆焦线上的线光源灯一起的约一半椭圆形的椭圆柱形表面。照明器被定位成使得被复制的文档的行位于另一个椭圆焦线。反射的圆柱形光挡板位于灯的上方，以反射否则将不会将椭圆反射表面反射穿过光源并进入椭圆反射表面的光。椭圆的开口端用热过滤器覆盖，以保护被复制的材料。椭圆被设置成相对较小的角度，并且来自正在复印的原稿的材料的垂直反射通过加热过滤器中的槽和椭圆形的底部中的槽，用于进一步的感测。

7. 发明授权

US5294950A Identification system for automated film and order processing including machine and human readable code 失效
标题翻译：自动电影和订单处理识别系统，包括机器和人类可读代码
公开(公告)号：US5294950A
公开(公告)日：1994-03-15
申请号：US851734
申请日：1992-03-16
申请人： Dale R. DuVall , Jerry W. Lindenfelser , Larry D. McClelland , Patrick J. Gilligan , Roger M. Johnson , Charles Swanson
发明人： Dale R. DuVall , Jerry W. Lindenfelser , Larry D. McClelland , Patrick J. Gilligan , Roger M. Johnson , Charles Swanson
IPC分类号： G03B17/24
CPC分类号： G03B17/24 , G03B2206/004 , G03B2217/243
摘要： An automated film encoding and decoding system for bringing photographic film from the state of exposure to subject matter through all of the processes required to produce finished photos and package the same. The system includes an encoder coordinately operative with a camera for the placement of a human and machine readable code on the film the decoder capable of reading the code for the control of production-processing equipment in laboratories provided with such equipment. The human readability of the code accommodates production-processing of the film by attendant personnel and also allows for quality control check of automated production-processing equipment. The encoding includes film frame identification information, subject matter information and registration mark information all of which may be utilized on a single exposure situation.
摘要翻译：一种自动化的胶片编码和解码系统，用于通过制作完成的照片所需的所有过程将包装曝光的摄影胶片带到主题。该系统包括与相机协同操作的编码器，用于在电影上放置人和机器可读代码，该解码器能够读取用于在具有这种设备的实验室中控制生产处理设备的代码。代码的人的可读性适用于由人员进行的电影的生产处理，并允许自动化生产处理设备的质量控制检查。编码包括胶片帧识别信息，主题信息和注册标记信息，所有这些信息可以在单个曝光情况下使用。

8. 发明授权

US4587621A Device for electrical variable magnification of document image 失效
标题翻译：文件图像电可变放大装置
公开(公告)号：US4587621A
公开(公告)日：1986-05-06
申请号：US500758
申请日：1983-06-03
申请人： Dale R. DuVall
发明人： Dale R. DuVall
IPC分类号： G06T3/40 , H04N1/393 , G06G7/30 , G03B27/52
CPC分类号： G06T3/4007 , H04N1/3935
摘要： A system for altering the size of an image by a desired magnification after optical scanning thereof provides a plurality of output scan values differing in number from the number of sampled scan signals produced during the optical scanning. The output scan values are representative of the density of the image at pixel locations spaced in rows and columns across the image, with the spacing of the pixel locations being dependent upon a selected magnification value. The system includes scanning means for providing a series of sequences of sampled scan signals, and converter means for converting the sequences of sampled scan signals to corresponding sequences of digital scan values. A control circuit is responsive to a selected magnification value for providing a plurality of interpolation control values in synchronism with the successive sequences of digital scan values. The interpolation control values indicate the spatial relationship of output scan values with respect to pairs of sequences of digital scan values. An interpolation circuit is responsive to the pairs of sequences of digital scan values and to the interpolation control values and interpolates between pairs of sequences of the digital scan values to provide the output scan values.
摘要翻译：用于在光学扫描之后以期望的倍率改变图像的尺寸的系统提供与在光学扫描期间产生的采样的扫描信号的数量不同的多个输出扫描值。输出扫描值表示在图像上以行和列间隔开的像素位置处的图像的密度，像素位置的间隔取决于所选择的放大值。该系统包括用于提供一系列采样的扫描信号的扫描装置和用于将采样的扫描信号的序列转换成数字扫描值的相应序列的转换器装置。控制电路响应所选择的放大值，以与数字扫描值的连续序列同步地提供多个插值控制值。内插控制值表示输出扫描值相对于数字扫描值序列对的空间关系。内插电路响应于数字扫描值序列对和插值控制值，并在数字扫描值序列对之间插值以提供输出扫描值。

9. 发明授权

US4162481A Adaptive correlator for video processing 失效
标题翻译：视频处理自适应相关器
公开(公告)号：US4162481A
公开(公告)日：1979-07-24
申请号：US753665
申请日：1976-12-22
申请人： Dale R. DuVall
发明人： Dale R. DuVall
IPC分类号： G06K9/38 , G06K9/00
CPC分类号： G06K9/38 , G06K2209/01
摘要： In optical character recognition systems scanning may be accomplished by a multi element scanning matrix, in which each element detects a portion of the reading field and an output voltage is generated for each element depending upon whether the element is looking at the dark character or a portion of the background which usually is of a lighter shade. The instantaneous output of each element is digitized with a value dependent upon the amount of light detected by the cell and may have a value from 0 to fifteen. This digitized quantized information is then used to make a black/white decision for each cell, for example, if the information is background or is representative of a character being read. Improper referencing of the background due to reflective variation caused by multi colored backgrounds or different paper textures may cause an incorrect reading and make a black/white decision which is in error. This invention describes a technique for determining an improper reference background and subsequently altering the parameters to restore satisfactory performance.
摘要翻译：在光学字符识别系统中，扫描可以通过多元素扫描矩阵来实现，其中每个元件检测读取场的一部分，并且根据元件是否看到暗字符还是部分地对每个元素产生输出电压的背景通常是一个较浅的阴影。每个元件的瞬时输出被数字化，取决于由单元检测到的光量，并且可以具有从0到十五的值。然后，该数字化量化信息用于为每个单元做出黑/白判定，例如，如果信息是背景或代表正在读取的字符。由于多色背景或不同纸张纹理引起的反射性变化引起的背景不正确，可能会导致错误的读取和黑白判断。本发明描述了一种用于确定不正确参考背景并随后改变参数以恢复令人满意的性能的技术。

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