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51. 发明授权

US5011245A Radiation scanning apparatus 失效
标题翻译：辐射扫描仪
公开(公告)号：US5011245A
公开(公告)日：1991-04-30
申请号：US382931
申请日：1989-07-21
申请人： Ronald Gibbs
发明人： Ronald Gibbs
IPC分类号： G02B26/10 , G11B7/00 , G11B7/08 , G11B7/135
CPC分类号： G11B7/0025 , G11B7/08 , G11B7/1356 , G11B7/1359
摘要： Radiation scanning apparatus comprises a record medium support (10); and a rotatably mounted scanning device (1) on which a modulated radiation beam (6) is incident in use. The device splits the incident beam into at least two subsidiary beams (17,21) which scan in turn across a record medium on the support during relative rotation between the scanning device and the support, each subsidiary beam exposing a respective scan line on the record medium in accordance with the beam modulation. The support (10) and device (1) are relatively movable such that the scan lines are offset in the direction of relative movement.

52. 发明授权

US4992804A Modulated beam scanning with pixal exposure control 失效
标题翻译：带有Pixal曝光控制的调制光束扫描
公开(公告)号：US4992804A
公开(公告)日：1991-02-12
申请号：US348523
申请日：1989-05-08
申请人： Malcolm D. M. Roe
发明人： Malcolm D. M. Roe
IPC分类号： B41J2/52 , B41J2/44 , G06K15/12 , H04N1/405 , H04N1/409
CPC分类号： H04N1/4092 , G06K15/128 , H04N1/4055 , H04N1/409
摘要： Apparatus for modulating a radiation beam during relative scanning movement between the beam and the record medium. The apparatus comprises a beam modulator which is operable to modulate the power level of the beam in accordance with a binary control signal so as selectively to expose the record medium in use to record and image on the record medium. Each bit of the control signals corresponds to a respective output pixel of the image. An exposure control system determines, prior to the modulation step, the pattern of control signal bits corresponding to image pixel in an area containing the pixels to be exposed, and causes the modulator to modulate the radiation beam to take up an output power level corresponding to the determined pattern during exposure of that pixel.

53. 发明授权

US4989096A Producing half-tone images of higher resolution through interpolation of original data 失效
标题翻译：通过原始数据的插值生成更高分辨率的半色调图像
公开(公告)号：US4989096A
公开(公告)日：1991-01-29
申请号：US352521
申请日：1989-05-16
申请人： Graham Webb , Richard A. Kirk
发明人： Graham Webb , Richard A. Kirk
IPC分类号： G06T3/40 , H04N1/40 , H04N1/405
CPC分类号： H04N1/40068 , G06T3/4007 , H04N1/4055
摘要： A method and apparatus for generating a half-tone version of an image represented by a first set of digital data defining the colour content of abutting pixels of the image at a first resolution. The apparatus comprises a radiation beam generator (8); a recond medium support (11), wherein the radiation beam and the support are relatively moveable such that the radiation beam scans a record medium (10) mounted on the support in a series of abutting scan lines; a radiation beam modulator (7) for modulating the radiation beam in response to a control signal (CS); and a control signal generator (5) for generating the control signal. The radiation beam is modulated selectively to expose a record medium on the support (11) at a second, finer resolution, the control signal generator (5) being adapted to interpolate the second set of digital data from the first set of digital data and to generate the control signal by comparing the second set of digital data with half-tone information.

54. 发明授权

US4954912A Image generating apparatus 失效
标题翻译：图像生成装置
公开(公告)号：US4954912A
公开(公告)日：1990-09-04
申请号：US359299
申请日：1989-05-31
申请人： Lindsay MacDonald , Clive Mayne , Reza P. Rassool
发明人： Lindsay MacDonald , Clive Mayne , Reza P. Rassool
IPC分类号： G06T3/00 , H04N1/387 , H04N5/265
CPC分类号： H04N1/3872 , H04N5/265
摘要： Apparatus for generating a composite image from a plurality of subsidiary images comprises first stores for storing signals representing at least two subsidiary images. Second stores store at least two arrays of mask data, each array having a mask pixel corresponding to each pixel of the composite image. A control system is responsive to each array of mask data to generate for the pixels of the composite image signals defining a weighted sum of the subsidiary images.

55. 发明授权

US4930010A Apparatus for generating a two-dimensional coloured display 失效
标题翻译：用于产生二维彩色显示器的装置
公开(公告)号：US4930010A
公开(公告)日：1990-05-29
申请号：US289893
申请日：1988-12-27
申请人： Lindsay W. MacDonald
发明人： Lindsay W. MacDonald
IPC分类号： G06F3/153 , G09G5/02 , G09G5/06 , G09G5/36
CPC分类号： G09G5/02
摘要： Apparatus for generating a two-dimensional coloured display in which there is a variation of colour across the display in a predetermined manner, the colour of each pixel in the display being defined by one or more colour components. The apparatus comprises, for each colour component, a memory for storing a pair of gradation curves (X(i), Y(i)) representing the variation in intensity of the color component in orthogonal directions X, Y across the display; a monitor; and processing apparatus. The processing apparatus determines a resultant colour component value V(i,j) for a pixel to be displayed at a location (i,j) on the monitor in accordance with the following formula:V(i,j)=f[a(X(i))b(Y(j))+c(X(i))d(Y(j))]where the pixel has coordinates i,j and k is a normalizing constant, and where a, c, are functions of X(i), b, d are functions of Y(j) and f is an output function, the functions being chosen such that V(i,j) exhibits no discontinuities for all values of X(i), Y(j). The monitor is responsive to the resultant colour component values V(i,j) to display a corresponding colour at a position in the display corresponding to that pixel.

56. 发明授权

US4893181A Interactive image modification 失效
标题翻译：交互式图像修改
公开(公告)号：US4893181A
公开(公告)日：1990-01-09
申请号：US252405
申请日：1988-10-03
申请人： Andrew J. V. Yeomans
发明人： Andrew J. V. Yeomans
IPC分类号： G06F17/50 , G06T11/60 , H04N1/60
CPC分类号： H04N1/6011
摘要： Apparatus for interactively modifying an image represented by digital data defining the color component content of pixels of the image, comprises an image store for storing the said digital data; a display; look-up tables defining retouch curves for each color component; and a microprocessor for applying the image in the image store to the LUTs and thereafter to the display to display the retouched image. The microprocessor also enables an operator to modify the retouch curves so that a second selected image point is retouched to the color of a first selected image point by modifying a color component retouch curve for each color component used to define the original image such that a pixel located at the second selected point will be retouched to have the color content of a pixel at the first selected point.

57. 发明授权

US4751569A Recording beam control for color image reproduction 失效
标题翻译：用于彩色图像再现的记录光束控制
公开(公告)号：US4751569A
公开(公告)日：1988-06-14
申请号：US943008
申请日：1986-12-18
申请人： Geoffrey D. Clinton , Paul E. Yandell
发明人： Geoffrey D. Clinton , Paul E. Yandell
IPC分类号： G03F3/10 , H04N1/04 , H04N1/407 , H04N1/60 , H04N1/46
CPC分类号： H04N1/6011
摘要： A method of generating a recording beam control function for reproducing an original colored image in which a record medium is exposed to a recording beam of radiation under the control of the control function comprises (a) generating a proof (7) from the original image; (b) generating a first recording beam control function (4) at least partly from the original image using a different reproductive process (2,3); (c) comparing the color of one or more selected areas of the proof (7A,7B) with the color of the corresponding area or areas defined by the first control function; and, (d) modifying the first control function in response to the result of the comparison step to generate a second control function (6) adapted to minimize differences in color between the proof and the reproduced image.
摘要翻译：一种生成用于在控制功能的控制下再现记录介质暴露于记录光束的原始彩色图像的记录光束控制功能的方法包括（a）从原始图像生成证明（7）; （b）使用不同的生殖过程（2,3）至少部分地从原始图像生成第一记录光束控制功能（4）; （c）将证明（7A，7B）的一个或多个选定区域的颜色与由第一控制功能限定的相应区域或区域的颜色进行比较; 以及（d）响应于所述比较步骤的结果来修改所述第一控制功能以产生适于最小化所述证明和再现图像之间的颜色差异的第二控制功能（6）。

58. 发明授权

US4675725A Image superimposing system 失效
标题翻译：图像叠加系统
公开(公告)号：US4675725A
公开(公告)日：1987-06-23
申请号：US642867
申请日：1984-08-21
申请人： Derek J. Parkyn
发明人： Derek J. Parkyn
IPC分类号： G06T1/00 , G06T1/20 , G06T5/00 , H04N5/265 , H04N9/76 , H04N1/46
CPC分类号： H04N5/265 , G06T1/0007
摘要： This relates to the modification of the whole, or a substantial part, of an image, for example to the merging of two images or to applying a tint to an image. To achieve this, using only the normal data processing capability provided for handling a single image, two images (I.sub.1, I.sub.2) are stored in first and second portions of a normal image store; for example, if the normal image store has a capacity of 1024.sup.2 pixels, each image may be stored at a resolution of 512.sup.2 pixels. In a further 1-bit store there is stored a mask consisting of alternate 1's and 0's and the mask output is used to select pixels from the two portions of the image store alternately. The mask output also selects multiplying factors A and (1-A) alternately. Then each pixel from the first image, after multiplication by A, is added to an immediately succeeding pixel from the second image after its multiplication by (1-A). The resulting sum signals are used to control an image display (34). This achieves merging of two images within the normal data processing capability provided for one image. When a tint is to be applied to the first image, the same value is used for each pixel of the second "image".
摘要翻译：这涉及图像的整体或主要部分的修改，例如对两个图像的合并或对图像应用色调。为了实现这一点，仅使用为处理单个图像提供的正常数据处理能力，将两个图像（I1，I2）存储在正常图像存储器的第一和第二部分中; 例如，如果正常图像存储具有10242像素的容量，则每个图像可以以5122像素的分辨率存储。在另一个1位存储中存储由交替1和0组成的掩码，并且掩码输出用于交替地从图像存储的两个部分中选择像素。掩模输出也交替选择乘法因子A和（1-A）。然后，在乘以A之后，来自第一图像的每个像素被乘以A（1-A）后从第二个图像被加到紧随其后的像素上。所得到的和信号用于控制图像显示（34）。这实现了为一个图像提供的正常数据处理能力内的两个图像的合并。当将色调应用于第一图像时，对于第二“图像”的每个像素使用相同的值。

59. 发明授权

US4647158A Modifying coherent radiation 失效
标题翻译：修改相干辐射
公开(公告)号：US4647158A
公开(公告)日：1987-03-03
申请号：US728897
申请日：1985-04-30
申请人： Edward C. Yeadon
发明人： Edward C. Yeadon
IPC分类号： G01M11/00 , G02B27/09 , G02F1/03 , G02F1/11
CPC分类号： G02B27/0938 , G02B27/09 , G02B27/0911 , G02F1/0327 , G02F1/11
摘要： A method and apparatus for modifying the phase characteristics of a coherent beam of radiation (7) are described. The apparatus comprises a laser (6) for generating a coherent beam of optical radiation (7). A support (1) for a record medium (1') sensitive to the radiation is provided, the beam of radiation (7) and the record medium (1') being relatively movable whereby the beam of radiation scans the record medium. First modulation means including an E/O modulator (8) and beam computer (9) is provided for modulating the beam (7) in accordance with image information. Second modulation means including an A/O modulator (10) or phase diffraction grating is responsive to a control function generated by a control function generator (11). The control function has a frequency which is repeatedly swept through a range of frequencies at a relatively fast rate to control the transmission characteristics of the grating. A substantially spatially incoherent beam of radiation is transmitted from the phase diffraction grating.
摘要翻译：描述了用于修改相干辐射束（7）的相位特性的方法和装置。该装置包括用于产生光辐射的相干光束的激光器（6）。提供了对辐射敏感的记录介质（1'）的支撑件（1），辐射束（7）和记录介质（1'）可相对移动，由此辐射束扫描记录介质。提供了包括E / O调制器（8）和光束计算机（9）的第一调制装置，用于根据图像信息调制光束（7）。包括A / O调制器（10）或相位衍射光栅的第二调制装置响应于由控制函数发生器（11）产生的控制功能。控制功能具有以相对较快的速率重复地扫过频率范围的频率，以控制光栅的传输特性。从相位衍射光栅传输基本上空间非相干的辐射束。

60. 发明授权

US4488171A Image reproduction 失效
标题翻译：图像再现
公开(公告)号：US4488171A
公开(公告)日：1984-12-11
申请号：US444114
申请日：1982-11-24
申请人： Peter C. Pugsley , Leonard Preston
发明人： Peter C. Pugsley , Leonard Preston
IPC分类号： G03F3/08 , H04N1/60 , H04N1/46
CPC分类号： H04N1/6011
摘要： In the reproduction of colored images, the "white point", that is to say a point which determines which areas are to be printed with zero-ink, is a critical adjustment. In this invention, signals representing the three color components derived from the original are applied to a NAND gate (14) and when all of these signals simultaneously represent a zero printing color condition, the NAND gate generates a zero-ink signal. This is used to modify the zero-ink or white display on the monitor tube, for example by inhibiting passage of red and blue signals (18R, 18B) to the display tube while allowing the passage of green signals. The green signal to the monitor tube may be periodically interrupted, so that zero-ink areas are shown in pulsating green. The operator then adjusts the white point until the pulsating green areas correspond to the areas of the original which are to be reproduced with zero-ink.
摘要翻译：在彩色图像的再现中，“白点”，即确定要用零墨打印哪些区域的点是一个关键的调整。在本发明中，表示从原始图像导出的三色分量的信号被施加到NAND门（14），并且当所有这些信号同时表示零打印色彩状态时，NAND门产生零墨信号。这用于修改监视器管上的零墨水或白色显示器，例如通过禁止红色和蓝色信号（18R，18B）通过显示管，同时允许绿色信号通过。到监视器管的绿色信号可能被周期性地中断，使得零墨区域以脉冲绿色示出。然后，操作员调整白点，直到脉动的绿色区域对应于要用零墨水再现的原稿区域。

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