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1. 发明授权

US5767887A System for plotting graphic Images 失效
标题翻译：绘制图形图像的系统
公开(公告)号：US5767887A
公开(公告)日：1998-06-16
申请号：US746107
申请日：1996-11-06
申请人： Andrew Warner , Alward I. Pinard , Harold Thidemann
发明人： Andrew Warner , Alward I. Pinard , Harold Thidemann
IPC分类号： B41C1/055 , H04N1/23 , H04N1/50 , B41J2/47
CPC分类号： B41J19/20 , H04N1/502
摘要： A system that permits the plotting of any combination of several colors in one pass. Three differently colored light sources are provided, and thus one, two or three colors may be plotted at the same time. An apparatus is provided for causing relative movement between the scanning head and the substrate along each of the two axes of the substrate. Preferably, the first axis is disposed circumferentially about a cylinder, on which the substrate is situated, the cylinder having a central axis, and the second axis is disposed approximately parallel to the central axis. The system includes deflection means, preferably acousto-optical modulators, for deflecting along a path a portion of each beam of light by an amount dependent upon the frequency of a signal that is present at the deflection means' input.
摘要翻译：允许在一次通过中绘制几种颜色的任意组合的系统。提供三种不同颜色的光源，因此可以同时绘制一种，两种或三种颜色。提供了一种装置，用于沿着基板的两个轴线沿着扫描头和基板之间的相对运动。优选地，第一轴线围绕衬底围绕圆柱体设置，圆柱体具有中心轴线，并且第二轴线大致平行于中心轴线设置。该系统包括偏转装置，优选声光调制器，用于沿光路偏转每个光束的一部分，取决于存在于偏转装置输入端的信号的频率。

2. 发明授权

US5758874A Universal vacuum drum and mask 失效
标题翻译：通用真空鼓和面膜
公开(公告)号：US5758874A
公开(公告)日：1998-06-02
申请号：US622942
申请日：1996-03-27
申请人： Roger J. Morrissette
发明人： Roger J. Morrissette
IPC分类号： B41F27/02 , B41F27/12 , H04N1/00 , H04N1/08 , B65H5/02
CPC分类号： H04N1/00588 , B41F27/02 , B41F27/1212 , H04N1/00567 , H04N1/00607 , H04N1/0062 , H04N1/08 , H04N1/0821 , H04N1/0834 , H04N1/0847 , H04N1/0856 , H04N1/0869 , H04N1/0882
摘要： A vacuum drum apparatus on which a mask is mounted having a resilient surface and a plurality of holes suitable for a substrate of a given size. The vacuum drum apparatus is balanced for rotation at high speeds by attaching a counterweight to the mask. The drum is a circular cylinder perforated with an array of holes. The drum has flat surfaces on its outer surface that are used to mount the mask and the substrate on the drum. A hollow chamber within the drum is connected to a controlled pressure source for providing a vacuum. The mask may be magnetically attracted about the outer surface of the drum. Thus, the mask may be made of a flexible ferromagnetic sheet. The mask may also be staged on the drum with other mechanical type entanglements. The mask is preferably elastomeric and may include an inextensible layer.
摘要翻译：其上安装有具有弹性表面的掩模的真空鼓装置和适合于给定尺寸的基板的多个孔。通过将配重连接到面罩上，真空鼓装置通过高速度进行平衡。鼓是一个圆孔，上有孔阵列。鼓在其外表面上具有用于将掩模和基材安装在滚筒上的平坦表面。滚筒内的中空室连接到受控的压力源以提供真空。该掩模可能被磁力吸引在滚筒的外表面周围。因此，掩模可以由柔性铁磁片制成。掩模也可以在其他机械类型缠绕的滚筒上分段。掩模优选是弹性体，并且可以包括不可延展的层。

3. 发明授权

US5907412A Scanner/plotter and rotatable drum for use therein 失效
标题翻译：扫描仪/绘图仪和可旋转滚筒用于其中
公开(公告)号：US5907412A
公开(公告)日：1999-05-25
申请号：US573116
申请日：1995-12-15
申请人： Alfred R. Ouellette
发明人： Alfred R. Ouellette
IPC分类号： H04N1/06 , H04N1/04
CPC分类号： H04N1/0678 , H04N1/0657 , H04N2201/0442
摘要： A rotatable image-mounting drum for use in a scanner or plotter. The drum has an end for permitting the releasable attachment of the drum to the scanner's or plotter's supporting and turning means. The drum's image-mounting surface and the drum's attachment end are preferably made of the same material, preferably acrylic. The attachment end of the drum includes a disk at the end of the drum, which has an opening or openings passing from its outer face to its inner face. The other end of the drum preferably is not attached directly to the rest of the scanner. The plotter's or scanner's mechanism for releasably attaching the rotatable drum includes a drum mount rotatable by a motor. A clasp stem, passing through a drum-mount opening, has a clasp finger rigidly attached thereto. A cam surface, having a varying elevation, can be rotated so as to push the cam stem through the drum-mount opening. A spring urges the stem against the cam surface. As the cam surface is rotated with respect to the drum mount, the distance between the finger and the drum mount's exterior side varies. The finger can pass through the opening in the attachment end of the drum, and the drum may be clasped between the finger and the drum mount's exterior side.
摘要翻译：用于扫描仪或绘图仪的可旋转图像安装鼓。滚筒具有用于允许鼓可释放地附接到扫描器或绘图仪的支撑和转动装置的端部。鼓的图像安装表面和滚筒的附接端优选地由相同的材料制成，优选地由丙烯酸制成。滚筒的附接端包括在滚筒的端部处的盘，该盘具有从其外表面到其内表面的开口或开口。滚筒的另一端最好不直接连接到扫描仪的其余部分。用于可拆卸地安装可旋转滚筒的绘图仪或扫描器的机构包括可由马达旋转的滚筒安装架。通过鼓安装开口的扣环具有刚性地附接到其上的扣环指状物。可以旋转具有不同高度的凸轮表面，以便将凸轮杆推动通过滚筒安装开口。弹簧推动杆抵靠凸轮表面。当凸轮表面相对于鼓座旋转时，手指与鼓座的外侧之间的距离变化。手指可以穿过鼓的附接端的开口，并且鼓可以被夹在手指和鼓座的外侧之间。

4. 发明授权

US5689623A Spread spectrum digital screening 无效
标题翻译：扩频数字筛选
公开(公告)号：US5689623A
公开(公告)日：1997-11-18
申请号：US410785
申请日：1995-03-27
申请人： Adam I. Pinard
发明人： Adam I. Pinard
IPC分类号： H04N1/405 , G06K15/00 , H04N1/40
CPC分类号： H04N1/4051
摘要： A spread spectrum digital screening mask and a method and system for digital screening a continuous tone image with the spread spectrum digital screening mask. The mask is characterized in the frequency domain by a function in magnitude independent of angle within a band of frequencies between a minimum frequency and a maximum frequency. The mask may be further characterized by its thresholded binary planes at each of a plurality of predetermined threshold values. The binary planes are characterized in frequency domain by magnitudes primarily distributed within the band of frequencies. For each binary plane, the number of pixels having one of the binary values divided by the total number of pixels in the binary plane equals a fraction determined by the predetermined threshold value of the binary plane divided by the maximum threshold value.
摘要翻译：一种扩频数字屏蔽掩模，以及利用扩频数字屏蔽掩模对连续色调图像进行数字筛选的方法和系统。该掩模的特征在于频域上的功能，其幅度与最小频率和最大频率之间的频带内的角度无关。掩模可以进一步的特征在于其在多个预定阈值中的每一个处的阈值二进制平面。二进制平面以频率为特征，主要分布在频带内。对于每个二进制平面，具有二进制值中的一个除以二进制平面中的总像素数的像素的数量等于由二进制平面的预定阈值除以最大阈值所确定的分数。

5. 发明授权

US5716048A Variable mask and universal vacuum drum 失效
公开(公告)号：US5716048A
公开(公告)日：1998-02-10
申请号：US734255
申请日：1996-10-21
申请人： Roger J. Morrissette
发明人： Roger J. Morrissette
IPC分类号： B41F27/02 , B41F27/12 , H04N1/00 , H04N1/08 , B65H5/02
CPC分类号： H04N1/00588 , B41F27/02 , B41F27/1212 , H04N1/00567 , H04N1/00607 , H04N1/0062 , H04N1/08 , H04N1/0821 , H04N1/0834 , H04N1/0847 , H04N1/0856 , H04N1/0869 , H04N1/0882
摘要： A vacuum drum apparatus on which a mask is mounted having a resilient surface and an array of holes suitable for a substrate of a given size. The drum is a circular cylinder perforated with an array of holes. A hollow chamber within the drum is connected to a controlled pressure source for providing a vacuum. The mask may be magnetically attracted about the outer surface of the drum. Thus, the mask may be made of a flexible ferromagnetic sheet. The mask is preferably elastomeric and may include an inextensible layer.

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