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1.发明授权Method of electronically moving portions of several different images on a CRT screen 失效在CRT屏幕上电子地移动几个不同图像的部分的方法
公开(公告)号：US4559533A
公开(公告)日：1985-12-17
申请号：US548551
申请日：1983-11-03
CPC分类号： G09G5/14
摘要： A method of electronically moving portions of several different images on a CRT screen includes the steps of: storing a first image in one section of an image memory, and storing a second image in a different section of the image memory; storing control bits in a control memory which define high and low priority viewports on the screen and correlate portions of the first and second images to the high and low priority viewports respectively; displaying, in response to the stored control bits, the entire portion of the image in the high priority viewport and only the non-overlapping portion of the image in the low priority viewport by transferring the image portions from the image memory to the screen with no frame buffer therebetween; modifying at least some of the stored control bits to change the priorities of the high and low priority viewports to low and high respectively; and repeating the displaying step, in response to the modified control bits, to display the entire portion of the image in the new high priority viewport and only the non-overlapping portion of the image in the new low priority viewport.
摘要翻译： 一种在CRT屏幕上电子地移动几个不同图像的部分的方法包括以下步骤：将第一图像存储在图像存储器的一个部分中，并将第二图像存储在图像存储器的不同部分中; 将控制位存储在控制存储器中，所述控制存储器在屏幕上定义高优先级和低优先级的视口，并将第一和第二图像的部分分别与高优先级和低优先级视口相关联; 通过将图像存储器中的图像部分从图像存储器传送到屏幕而在高优先级视口中的整个部分响应于所存储的控制位，并且仅显示低优先级视口中的图像的非重叠部分 帧缓冲器; 修改至少一些所存储的控制位以分别将高优先级和低优先级视口的优先级改变为低和高优先级视口; 并且响应于修改的控制位重复显示步骤，以在新的高优先级视口中显示图像的整个部分，并且仅在新的低优先级视口中显示图像的非重叠部分。
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2.发明授权System for electronically displaying portions of several different images on a CRT screen through respective prioritized viewports 失效用于通过相应的优先视口在CRT屏幕上电子地显示几个不同图像的部分的系统
公开(公告)号：US4542376A
公开(公告)日：1985-09-17
申请号：US548430
申请日：1983-11-03
CPC分类号： G09G5/14
摘要： A system for electronically displaying portions of several different images on a CRT screen comprises: a memory for storing a complete first image as several pixels in one section of the memory and a complete second image as several other pixels in another section of the memory such that the total number of stored pixels is substantially larger than the number of pixels on the screen; a logic circuit for reading a sequence of the pixels at non-contiguous locations in the first and second images and for transferring them, in the sequence in which they are read, to the screen for display with no frame buffer therebetween; the logic circuit for reading including a module for forming non-contiguous addresses for the pixels in the sequence in which they are read with the address of one word of pixels being formed during the time interval that a previously addressed word of pixels is being displayed on the screen.
摘要翻译： 一种用于电子地显示CRT屏幕上的若干不同图像的部分的系统，包括：存储器，用于将完整的第一图像存储为存储器的一个部分中的若干个像素，以及完整的第二图像作为存储器的另一部分中的其它几个像素，使得 所存储的像素的总数明显大于屏幕上的像素数; 逻辑电路，用于读取第一和第二图像中非连续位置处的像素序列，并将它们以它们被读取的顺序传送到屏幕以在其间没有帧缓冲器; 用于读取的逻辑电路包括一个模块，该模块用于形成它们被读取的序列中的像素的不连续地址，其中一个像素字的地址是在以前被寻址的像素的像素正被显示的时间间隔期间形成的 屏幕。
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3.发明授权System for electronically displaying multiple images on a CRT screen such that some images are more prominent than others 失效用于在CRT屏幕上电子显示多个图像的系统，使得一些图像比其他图像更突出
公开(公告)号：US4550315A
公开(公告)日：1985-10-29
申请号：US548552
申请日：1983-11-03
摘要： A system for electronically displaying multiple images on a CRT screen such that some of the images are more prominent than others comprises: a control memory for storing control signals which partition the screen into an array of blocks, define multiple prioritized viewports by indicating which blocks are included in each viewport, and correlate respective image pixels to each viewport; a circuit for determining, from the control signals, the identity of the highest priority viewport to include a particular block; a plurality of color map memories each of which contains a plurality of color signals; a correlator for addressing a particular color map memory of said plurality based on the identity of the highest priority viewport; and a circuit for transferring respective color signals from the addressed color map memory to the screen based on the image pixels in the block of the highest priority viewport.
摘要翻译： 一种用于在CRT屏幕上电子地显示多个图像的系统，使得一些图像比其他图像更突出包括：用于存储将屏幕分割成块阵列的控制信号的控制存储器，通过指示哪些块定义多个优先化视口 包括在每个视口中，并且将各个图像像素与每个视口相关联; 用于从所述控制信号确定所述最高优先级视口的身份以包括特定块的电路; 多个颜色映射存储器，每个颜色映射存储器包含多个颜色信号; 相关器，用于基于最高优先级视口的身份寻址所述多个的特定颜色映射存储器; 以及用于基于最高优先级视口的块中的图像像素将来自寻址的颜色映射存储器的各个颜色信号传送到屏幕的电路。
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