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1. 发明授权

US4623972A Half-tone dot imaging 失效
标题翻译：半色调点成像
公开(公告)号：US4623972A
公开(公告)日：1986-11-18
申请号：US727154
申请日：1985-04-25
申请人： Samuel E. Darby , George C. Manley
发明人： Samuel E. Darby , George C. Manley
IPC分类号： H04N1/23 , G03F5/00 , H04N1/387 , H04N1/405 , H04N1/40
CPC分类号： H04N1/3871 , H04N1/4055
摘要： Method and apparatus for generating a half-tone dot representation of an original image which has been previously generated as one or more color separations each comprising a plurality of cells (12), each cell being digitally encoded in accordance with the color density at that point is described. The apparatus comprises a record medium support (8); a plurality of scanning beam generators arranged side by side, the scanning beams (B1-6) and the record medium support (8) being relatively movable. First control means controls the scanning beams during relative movement between the scanning beams and the record medium support (8) in response to the digital information and half-tone dot information to generate a plurality of half-tone dots (14) at a first rate, each dot corresponding to one or more of the plurality of cells (12). Storage means (23) for storing additional control information; and second control (24) means for determining the position of the scanning beams relatively to the record medium, determining whether that position corresponds to part of a boundary of an image poriton, and, if it does, for at least one color separation, for each cell at the boundary of an image portion modifying the plurality of scanning beams in response to the additional control information:(i)a together at a second higher rate, or(i)b in groups of one or more, or(i)c in groups of one or more and at a second, higher rate, and(ii) in response to color density information partly corresponding to that cell and partly corresponding to one or more adjacent cells.The invention thus puts a relatively high resolution edge on a relatively low resolution image.
摘要翻译：用于生成先前已经生成为包括多个单元（12）的一个或多个分色的原始图像的半色调点表示的方法和装置，每个单元根据该点处的颜色密度进行数字编码被描述。该装置包括记录媒体支架（8）; 并排布置的多个扫描光束发生器，扫描光束（B1-6）和记录媒体支架（8）相对移动。第一控制装置响应于数字信息和半色调点信息在扫描光束和记录介质支架（8）之间的相对移动期间控制扫描光束，以以第一速率产生多个半色调点（14），每个点对应于多个单元（12）中的一个或多个单元。用于存储附加控制信息的存储装置（23）和第二控制（24）用于确定扫描光束相对于记录介质的位置的装置，确定该位置是否对应于图像孔的边界的一部分，并且如果它对于至少一个颜色分离，则用于响应于附加控制信息修改多个扫描光束的图像部分的边界处的每个单元：（i）以第二较高速率合并，或（i）b以一个或多个或（i） c）以一个或多个和第二个，更高的速率的组，以及（ii）响应于部分对应于该小区并且部分对应于一个或多个相邻小区的颜色浓度信息。因此，本发明在相对低分辨率图像上具有相对高的分辨率边缘。

2. 发明授权

US5555475A Method and apparatus for generating an output device control signal 失效
标题翻译：用于产生输出装置控制信号的方法和装置
公开(公告)号：US5555475A
公开(公告)日：1996-09-10
申请号：US354854
申请日：1994-12-09
申请人： Paul J. Perowne , George C. Manley , Richard A. Kirk
发明人： Paul J. Perowne , George C. Manley , Richard A. Kirk
IPC分类号： G03F1/00 , G06T5/00 , H04N1/387 , H04N1/52
CPC分类号： H04N1/3871
摘要： A method of generating an output device control signal having portions representing the content of pixels of an image including at least two types of image content, in which data defining the content of each pixel of the image at a lower, first resolution and a higher, second resolution are passed respectively through a pair of processing paths, one corresponding to each image content type. A binary control signal is generated from the first resolution data in the first path by applying a stochastic screen. The binary control signal resulting from the stochastic screen is adapted to conform with the data at the second resolution, and the output device control signal is generated by combining data from the two processing paths.
摘要翻译：一种产生输出设备控制信号的方法，其具有表示包括至少两种类型的图像内容的图像的像素的内容的部分，其中以更低的第一分辨率和更高的图像定义图像的每个像素的内容的数据，第二分辨率分别通过一对对应于每个图像内容类型的处理路径。通过应用随机屏幕从第一路径中的第一分辨率数据生成二进制控制信号。由随机屏幕产生的二进制控制信号适于与第二分辨率下的数据一致，并且通过组合来自两个处理路径的数据来产生输出设备控制信号。

3. 发明授权

US4647962A Method and apparatus for generating a half-tone image representation with individual groups of one or more scanning beams controlled in response to half-tone dot information and either low-or high-resolution image data 失效
标题翻译：用于响应于半色调点信息和低分辨率或高分辨率图像数据而被控制的一个或多个扫描光束的各个组生成半色调图像表示的方法和装置
公开(公告)号：US4647962A
公开(公告)日：1987-03-03
申请号：US686793
申请日：1984-12-26
申请人： Martin Rosen , George C. Manley
发明人： Martin Rosen , George C. Manley
IPC分类号： H04N1/40 , H04N1/405 , H04N1/41 , H04N1/52 , H04N1/46 , H04N1/21 , H04N1/23
CPC分类号： H04N1/52 , H04N1/4055 , H04N1/4105
摘要： A method and apparatus for generating a representation of a half-tone image including areas of different resolution. The apparatus comprises stores (2, 26) for storing digital color data representing color density information at low and high resolution respectively. A second store (25) stores spatial data indicating the type of image data to be used at each position on a record medium (7). A third store (2') is provided for storing half-tone dot information. A group of six light modulators (10) which generate six scanning beams are arranged side-by-side. A support (8) supporting the record medium (7) to be exposed to the scanning beams is provided while drive motors (6',9') cause relative movement between the support and the scanning beam. Scanning beam control means (25,27-32) determine the position of the beams relatively to the record medium (7) in use, compare the current position with the stored spatial data and control the beam in response to the previously generated digital color data and in response to the half-tone dot information. The plurality of beams are controlled together and at a first rate in response to low resolution data and singly or in groups and at a higher, second rate in response to high resolution image data.
摘要翻译：一种用于生成包括不同分辨率的区域的半色调图像的表示的方法和装置。该装置包括用于分别存储表示低分辨率和高分辨率色彩浓度信息的数字彩色数据的存储器（2,26）。第二存储器（25）存储指示要在记录介质（7）上的每个位置使用的图像数据的类型的空间数据。第三个商店（2'）用于存储半色调点信息。产生六个扫描光束的一组六个光调制器（10）并排布置。在驱动电机（6'，9'）在支撑体和扫描光束之间产生相对移动的同时，提供支撑记录介质（7）暴露于扫描光束的支撑体（8）。扫描光束控制装置（25,27-32）确定光束相对于使用中的记录介质（7）的位置，将当前位置与存储的空间数据进行比较，并根据先前生成的数字彩色数据控制光束并响应于半色调点信息。多个光束响应于低分辨率数据以一个一组或一组的方式一起被控制在一起并以一个第一速率被控制，并响应于高分辨率图像数据以较高的第二速率被控制。

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