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公开(公告)号：US5757364A
公开(公告)日：1998-05-26
申请号：US624826
申请日：1996-03-27
申请人： Koji Ozawa , Masahiro Shiraishi , Kazunori Oniki
发明人： Koji Ozawa , Masahiro Shiraishi , Kazunori Oniki
CPC分类号： G09G5/399 , G09G5/14 , G09G2340/12
摘要： The present invention relates to a graphic display apparatus for a multi-window graphic displaying system comprises a frame memory including double buffers for storing pixel data of display frames, first memorizing means for storing a successive frame number allocated to each pixel in each one of the display frames of which each set of pixel information is successively displayed and renewed, second memorizing means for storing window identifiers, each one of the identifiers being allocated in advance to each one of the multi-windows to be displayed, a table for storing the allocated frame numbers, information of designating one of buffers in the double-buffer and background color information, for each one of the multi-window, and means for comparing each one of the window identifiers and each one of the frame numbers read out from the first and second memorizing means, with each one of the window identifiers and each one of the frame numbers stored in the table, respectively, and for deciding pixel data to be displayed, based on results of the comparison, whereby it is not necessary to clear pixel data of the buffers for storing pixel data in each frame rendering, and the pixel data overwritten on the buffers need not to be cleared until the frame numbers overflow the first memorizing means.
摘要翻译： 本发明涉及一种用于多窗口图形显示系统的图形显示装置，包括：一个帧存储器，包括用于存储显示帧的像素数据的双重缓冲器;第一存储装置，用于存储分配给每个像素的每个像素的连续帧号 连续地显示和更新每组像素信息的显示帧，用于存储窗口标识符的第二存储装置，每个标识符被预先分配给要显示的多个窗口中的每一个，用于存储所分配的 帧数，对于多窗口中的每一个指定双缓冲器中的缓冲器之一的信息和背景颜色信息，以及用于比较每个窗口标识符和从第一个窗口读出的每个帧号的每个 以及第二存储装置，其中每个窗口标识符和每个帧编号分别存储在表中，并且对于d 基于比较结果来执行要显示的像素数据，由此不需要在每个帧渲染中清除用于存储像素数据的缓冲器的像素数据，并且不需要清除在缓冲器上重写的像素数据，直到 帧数溢出第一存储装置。
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公开(公告)号：US5781199A
公开(公告)日：1998-07-14
申请号：US749193
申请日：1996-11-14
CPC分类号： G06F15/8007
摘要： A parallel processing method for use with a graphics processor wherein graphics processing is performed by each of configured command processors efficiently in a distributed manner, with a host CPU remaining unaware of the number of command processors. Each command group of a variable length from a host CPU is distributed from an FIFO queue to a plurality of parallelly arranged command processors for parallel processing through any free one of input FIFO queues corresponding to the command processors. Upon command group distribution, an identical serial number is added as a command group serial number to the commands constituting the same command group. The results of processing of individual graphics commands by the command processors are collected via output FIFO queues, which also correspond to the processors, in the order of the command group serial numbers added to the commands before the processed results are graphically drawn.
摘要翻译： 一种与图形处理器一起使用的并行处理方法，其中图形处理由每个配置的命令处理器以分布式方式有效地执行，主机CPU仍然不知道命令处理器的数量。 来自主机CPU的可变长度的每个命令组从FIFO队列分配到多个并行布置的命令处理器，用于通过对应于命令处理器的任何空闲的一个输入FIFO队列进行并行处理。 在命令组分配时，将相同的序列号作为命令组序列号添加到构成同一命令组的命令。 命令处理器处理各个图形命令的结果通过输出FIFO队列收集，该队列也对应于处理器，按图形方式绘制处理结果之前的命令组序列号。
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公开(公告)号：US6118453A
公开(公告)日：2000-09-12
申请号：US769356
申请日：1996-12-19
申请人： Katsunori Suzuki , Ryo Fujita , Kazuyoshi Koga , Yuichi Abe , Mitsuru Soga , Kazuhisa Takami , Koyo Katsura , Hideki Fujii , Kazunori Oniki
发明人： Katsunori Suzuki , Ryo Fujita , Kazuyoshi Koga , Yuichi Abe , Mitsuru Soga , Kazuhisa Takami , Koyo Katsura , Hideki Fujii , Kazunori Oniki
CPC分类号： G06T15/506 , G06T15/50
摘要： A graphics processor comprises: a light source table holding light source data; a conversion unit for converting the light source data to be set in the light source table from a float type (single-precision floating point real number type) into an int type (integer type); an inner product calculation unit for calculating the inner products of normal directions, light source directions and sight line directions at the vertices based on the light source data; and a color calculation unit for performing light source computations based on the calculated inner products to determine the colors of the vertices.
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公开(公告)号：US6049343A
公开(公告)日：2000-04-11
申请号：US9588
申请日：1998-01-20
申请人： Yuichi Abe , Ryo Fujita , Katsunori Suzuki , Kazuhisa Takami , Kazunori Oniki
发明人： Yuichi Abe , Ryo Fujita , Katsunori Suzuki , Kazuhisa Takami , Kazunori Oniki
CPC分类号： G06T15/50 , G06F1/0307 , G06T1/20
摘要： A device for controlling the table capacity smaller comprises a table of logarithms and a table of exponents preserving values of a logarithmic function and exponential function with a base of the second power, a multiplier, a shift unit for shifting the input value by a proper integer when the domain of logarithm is not included in the input value range of the table of logarithms, a logarithm addition unit for adding the shift amount to the value referred to in the table of logarithms, an exponent subtraction unit for subtracting a proper integer L from the input value when the domain of the exponential function is not included in the input value range of the table of exponents, and an exponent shift unit for shifting the referred value in the table of exponents the subtraction amount. A high-speed processing unit comprises a converter for converting floating-point data to fixed-point data having a bit of decimal point. By doing this, a structured graphics system can perform high-speed processing with a small table capacity.
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公开(公告)号：US20060250397A1
公开(公告)日：2006-11-09
申请号：US11484812
申请日：2006-07-12
申请人： Yuichi Abe , Ryo Fujita , Katsunori Suzuki , Kazuhisa Takami , Kazunori Oniki
发明人： Yuichi Abe , Ryo Fujita , Katsunori Suzuki , Kazuhisa Takami , Kazunori Oniki
IPC分类号： G06T15/50
CPC分类号： G06T15/50 , G06F1/0307 , G06T1/20
摘要： A device for controlling the table capacity smaller comprises a table of logarithms and a table of exponents preserving values of a logarithmic function and exponential function with a base of the second power, a multiplier, a shift unit for shifting the input value by a proper integer when the domain of logarithm is not included in the input value range of the table of logarithms, a logarithm addition unit for adding the shift amount to the value referred to in the table of logarithms, an exponent subtraction unit for subtracting a proper integer L from the input value when the domain of the exponential function is not included in the input value range of the table of exponents, and an exponent shift unit for shifting the referred value in the table of exponents the subtraction amount. A high-speed processing unit comprises a converter for converting floating-point data to fixed-point data having a bit of decimal point. By doing this, a structured graphics system can perform high-speed processing with a small table capacity.
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6.发明授权Graphics processor and system for determining colors of the vertices of a figure 失效用于确定图形顶点颜色的图形处理器和系统公开(公告)号：US06756981B2
公开(公告)日：2004-06-29
申请号：US10223600
申请日：2002-08-20
申请人： Katsunori Suzuki , Ryo Fujita , Kazuyoshi Koga , Yuichi Abe , Mitsuru Soga , Kazuhisa Takami , Koyo Katsura , Hideki Fujii , Kazunori Oniki
发明人： Katsunori Suzuki , Ryo Fujita , Kazuyoshi Koga , Yuichi Abe , Mitsuru Soga , Kazuhisa Takami , Koyo Katsura , Hideki Fujii , Kazunori Oniki
IPC分类号： G06T1500
CPC分类号： G06T15/506 , G06T15/50
摘要： A graphics processor comprises: a light source table holding light source data; a conversion unit for converting the light source data to be set in the light source table from a float type (single-precision floating point real number type) into an int type (integer type); an inner product calculation unit for calculating the inner products of normal directions, light source directions and sight line directions at the vertices based on the light source data; and a color calculation unit for performing light source computations based on the calculated inner products to determine the colors of the vertices.
摘要翻译： 图形处理器包括：保持光源数据的光源表; 转换单元，用于将在光源表中设置的光源数据从浮点型（单精度浮点实数型）转换成int型（整数型）; 内积计算单元，用于基于光源数据计算顶点的法线方向，光源方向和视线方向的内积; 以及颜色计算单元，用于基于所计算的内积执行光源计算，以确定顶点的颜色。
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