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    • 1. 发明授权
    • Figure displaying device
    • 图显示设备
    • US4360884A
    • 1982-11-23
    • US161407
    • 1980-06-20
    • Kunihiro OkadaTakeyuki EndoShigeru YabuuchiTakakazu HunoKazuyuki KodamaYasutaka Shibuya
    • Kunihiro OkadaTakeyuki EndoShigeru YabuuchiTakakazu HunoKazuyuki KodamaYasutaka Shibuya
    • G09G5/20G06T11/20G09G1/00G09G1/16G09G5/36G09G5/42G06F15/20G06F3/153
    • G09G5/42
    • A figure displaying device operates to display a plurality of fundamental figures each defined by a preset number of vectors on a display device of the raster scanning type. The figure displaying device stores the start and end point coordinates of the respective vectors of the respective fundamental figures and the gradient data of the respective vectors of the fundamental figures, and determines whether the respective vectors are located on a horizontal scanning line or not for each fundamental figure prior to the scanning operation of the horizontal scanning line. If the vectors are located on the horizontal scanning line the gradient data corresponding to the vectors on the aforementioned horizontal scanning line is read out and added to the start point coordinates thereby to renew the start point coordinates. A line memory is provided having a capacity corresponding to the number of picture elements in one horizontal scanning line so that preset data can be stored therein at the address corresponding to the added results and a control circuit is provided for consecutively reading the data out of the address in the line memory, which corresponds to the position of the horizontal scanning line being scanned, thereby to effect the display in accordance with the read results.
    • 图形显示装置用于显示由光栅扫描类型的显示装置上的预设数量的矢量定义的多个基本图形。 图形显示装置存储各个基本图形的各个向量的各个矢量的开始和结束点坐标以及基本图形的各个矢量的梯度数据,并且确定各个矢量是否位于水平扫描线上 在水平扫描线的扫描操作之前的基本图形。 如果矢量位于水平扫描线上,则将与上述水平扫描线上的矢量对应的梯度数据读出并加到起点坐标上,从而更新起点坐标。 提供具有对应于一个水平扫描行中的像素数量的容量的行存储器,使得可以在与添加的结果对应的地址处存储预设数据,并且提供控制电路用于连续读取数据 行存储器中的地址,其对应于被扫描的水平扫描线的位置,从而根据读取结果进行显示。
    • 4. 发明授权
    • Direct memory access of a main memory by an input/output device using a
table in main memory
    • 通过使用主存储器中的表的输入/输出设备直接存储主存储器
    • US4346439A
    • 1982-08-24
    • US109878
    • 1980-01-07
    • Takakazu HunoTakeyuki EndoKunihiro OdakaYasutaka Shibuya
    • Takakazu HunoTakeyuki EndoKunihiro OdakaYasutaka Shibuya
    • G06F13/12G06F13/28G09G1/02G06F3/00
    • G06F13/28G09G1/02
    • A data transfer system for use in a data processing system using a direct memory access mode of operation, which is equipped with a processor, a main memory and an input/output device. The data transfer system is characterized in that, when a group of data to be transferred exists in a plurality of areas of continuous addresses of the afore-mentioned memory, a table is provided in the afore-mentioned main memory with identifying information for each group of data indicative of the first address and the number of data items to be transferred from each area of continuous addresses. Only the first address and the number of data items are fed out of the processor to the input/output device by the program control; and in the input/output device, the content of the corresponding table is transferred from the main memory in accordance with the data fed out of the processor so that the direct data transfer may be effected between the main memory and the input/output device in accordance with the transferred table content.
    • 一种用于使用直接存储器访问操作模式的数据处理系统中的数据传送系统,其配备有处理器,主存储器和输入/输出设备。 数据传送系统的特征在于,当要传送的一组数据存在于上述存储器的连续地址的多个区域中时,在上述主存储器中提供具有每个组的识别信息的表 指示要从连续地址的每个区域传送的第一地址和数据项的数量的数据。 仅通过程序控制将第一地址和数据项从处理器送出到输入/输出装置; 并且在输入/输出设备中,根据从处理器馈出的数据,相应表的内容从主存储器传送,使得可以在主存储器和输入/输出设备之间进行直接数据传送 按照转让的表格内容。