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    • 5. 发明授权
    • Image signal processing device
    • 图像信号处理装置
    • US4864414A
    • 1989-09-05
    • US268633
    • 1988-11-08
    • Masaaki NishiyamaTakashi Kadono
    • Masaaki NishiyamaTakashi Kadono
    • G06T9/00H04N1/419H04N1/413
    • H04N1/419G06T9/005
    • A signal processing device comprises buffer memory means for outputting a coded signal in parallel by a signal of predetermined bits, shifting means for shifting the coded signal so that the head bit of the coded signal become the head of the outputted signal, decoding memory means for decoding the coded signal to a run length signal having information of the run length of the coded signal, and outputting a shifting signal designating a bit number of the coded signal corresponding to the number to be shifted, into said shifting means. Accordingly, said signal processing device enables to decode a coded signal at a higher speed than a conventional image signal processing device and to output an image signal into an electrophotographic printer or a CRT display, synchronizing with a processing speed of the electrophotographic printer or a sub scanning speed of the CRT display.
    • 信号处理装置包括缓冲存储装置,用于通过预定比特的信号并行输出编码信号;移位装置,用于移位编码信号,使得编码信号的头比特成为输出信号的头;解码存储装置, 将编码信号解码为具有编码信号的游程长度的信息的游程长度信号,并将指定与要移动的号码相对应的编码信号的比特数的移位信号输出到所述移位装置中。 因此,所述信号处理装置能够以比常规图像信号处理装置更高的速度解码编码信号,并且将图像信号输出到电子照相打印机或CRT显示器中,与电子照相打印机的处理速度或子 CRT显示屏的扫描速度。
    • 7. 发明授权
    • Character image generating circuit
    • 字符图像生成电路
    • US4881180A
    • 1989-11-14
    • US21456
    • 1987-03-04
    • Masaaki Nishiyama
    • Masaaki Nishiyama
    • G06K15/00B41J2/485G06F3/12G06K15/12G09G5/42
    • G06K15/128G09G5/42
    • A character image generating circuit includes a text buffer for storing character code data corresponding to one page, a first memory for storing character image data corresponding to a section of one page, and a second memory for storing compressed character image data corresponding to one page. A depiction control unit coupled with a font memory is provided for converting the character code data, a section at a time from the text buffer, to character image data which is temporarily stored in the first memory. The depiction control unit also compresses the character image data obtained from the first memory to produce compressed character image data which is stored in the second memory. The second memory further receives compressed character image data of other sections. A reconstruction circuit is provided for reconstructing the compressed character image data of one page from the second memory back to the original character image data.
    • 字符图像生成电路包括用于存储对应于一页的字符代码数据的文本缓冲器,用于存储对应于一页的一部分的字符图像数据的第一存储器,以及用于存储对应于一页的压缩字符图像数据的第二存储器。 提供与字体存储器耦合的描绘控制单元,用于将字符代码数据(从文本缓冲器一次的部分)转换为临时存储在第一存储器中的字符图像数据。 描绘控制单元还压缩从第一存储器获得的字符图像数据,以产生存储在第二存储器中的压缩字符图像数据。 第二存储器还接收其他部分的压缩字符图像数据。 提供重建电路,用于将从第二存储器返回到原始字符图像数据的一页的压缩字符图像数据重建。
    • 8. 发明授权
    • Dot image character generator employing a font memory
    • 点阵字符发生器采用字体内存
    • US4847787A
    • 1989-07-11
    • US813657
    • 1985-12-26
    • Masaaki NishiyamaTakashi Kadono
    • Masaaki NishiyamaTakashi Kadono
    • G06K15/02G06K15/10
    • G06K15/02G06K15/10G06K2215/0022
    • A character generator, comprising: a font memory for storing dot patterns of fonts; a first-in first-out memory for loading dot pattern data in unit of one byte successively, which generates a load request signal when the memory has empty spaces; an input control unit for accessing a dot pattern of a font to be printed and for transmitting a dot array data of one byte to the first-in first-out memory when the load request signal is received; and an output control unit for sending an output request signal to the first-in first-out memory to receive dot array data from the first-in first-out memory, and for transmitting the dot array data to a dot-image printer synchronously with a load request signal from the dot-image printer.
    • 一种字符发生器,包括:用于存储字体的点阵图形的字体存储器; 用于以一个字节为单位连续地加载点阵数据的先进先出存储器,当存储器具有空格时产生加载请求信号; 输入控制单元,用于访问要打印的字体的点阵图形,并且用于当接收到所述加载请求信号时将一个字节的点阵列数据发送到所述先进先出存储器; 以及输出控制单元,用于将输出请求信号发送到先进先出存储器,以从先进先出存储器接收点阵列数据,并且将点阵数据发送到点图像打印机,与 来自点图像打印机的加载请求信号。