公开(公告)号：EP0277657B1

公开(公告)日：1993-07-21

申请号：EP88101621.6

申请日：1988-02-04

申请人： NAMCO, LTD.

发明人： Ogawa, Toru

IPC分类号： G09G1/28 ,  G09G1/16

CPC分类号： G09G5/026 ,  G09G5/222

公开(公告)号：EP0277657A3

公开(公告)日：1990-05-16

申请号：EP88101621.6

申请日：1988-02-04

申请人： NAMCO, LTD.

发明人： Ogawa, Toru

IPC分类号： G09G1/28 ,  G09G1/16

CPC分类号： G09G5/026 ,  G09G5/222

摘要： An image display apparatus which synthesizes one color picture by placing a plurality of pictures with one on top of another. The image display apparatus comprises besides a picture display memory, a raster display controller and a priority decision circuit, only one shape generator as well as one character generator for common use in synthesizing one color picutre by placing the plurality of pictures with one on top of another.

公开(公告)号：EP0323636B1

公开(公告)日：1994-06-08

申请号：EP88121807.7

申请日：1988-12-28

申请人： NAMCO, LTD.

发明人： Nakamura, Shigeichi ,  Ogawa, Toru ,  Inoue, Makoto ,  Sato, Seiichi

IPC分类号： G09G1/16 ,  A63F9/22

CPC分类号： G09G5/42 ,  A63F13/00 ,  A63F2300/203

公开(公告)号：EP0337458A3

公开(公告)日：1990-11-28

申请号：EP89106631.8

申请日：1989-04-13

申请人： NAMCO, LTD.

发明人： Ogawa, Toru ,  Sato, Seiichi

IPC分类号： G10H7/00 ,  G10H7/08 ,  G10H1/12

CPC分类号： G10H7/00 ,  G10H2250/195 ,  G10H2250/545 ,  Y10S84/09

摘要： The present invention provides an analog signal synthesizing apparatus including a waveform memory for storing a plurality of analog signals as PCM data sampled with different sampling frequencies, the amount of PCM data corresponding to plural channels being read from the waveform memory and used to synthesize the analog signals. The analog signal synthesizing apparatus includes an oversampling device for shifting the sampling frequency of said PCM data read from said waveform memory for each channel toward the side of high frequency; a summing device for summing the oversampled PCM data for the respective channel; a D/A converter for converting the summed data into an analog signal; and a low-pass filter for setting a cut-off frequency based on the sampling frequency shifted to the side of high frequency and for eliminating aliasing noises included in the PCM data from the synthesized analog signal. The elimination of the aliasing noise included in the PCM data for each channel is carried out at the common low-pass filter.

公开(公告)号：EP0277657A2

公开(公告)日：1988-08-10

申请号：EP88101621.6

申请日：1988-02-04

申请人： NAMCO, LTD.

发明人： Ogawa, Toru

IPC分类号： G09G1/28 ,  G09G1/16

CPC分类号： G09G5/026 ,  G09G5/222

摘要： An image display apparatus which synthesizes one color picture by placing a plurality of pictures with one on top of another. The image display apparatus comprises besides a picture display memory, a raster display controller and a priority decision circuit, only one shape generator as well as one character generator for common use in synthesizing one color picutre by placing the plurality of pictures with one on top of another.

摘要翻译： 一种图像显示装置，其通过将多个图像放置在另一个之上来合成一个彩色图像。 图像显示装置除了图像显示存储器，光栅显示控制器和优先级决定电路外，还包括一个形状发生器以及一个字符发生器，用于通过将多个图像放置在 另一个。

公开(公告)号：EP0337458B1

公开(公告)日：1994-01-19

申请号：EP89106631.8

申请日：1989-04-13

申请人： NAMCO, LTD.

发明人： Ogawa, Toru ,  Sato, Seiichi

IPC分类号： G10H7/00 ,  G10H7/08 ,  G10H1/12

CPC分类号： G10H7/00 ,  G10H2250/195 ,  G10H2250/545 ,  Y10S84/09

公开(公告)号：EP0323636A3

公开(公告)日：1991-10-23

申请号：EP88121807.7

申请日：1988-12-28

申请人： NAMCO, LTD.

发明人： Nakamura, Shigeichi ,  Ogawa, Toru ,  Inoue, Makoto ,  Sato, Seiichi

IPC分类号： G09G1/16 ,  A63F9/22

CPC分类号： G09G5/42 ,  A63F13/00 ,  A63F2300/203

摘要： The invention provides an object display system for calculating a set of object data including object identification cata, vertical display position data and horizontal display position data for each of objects to be displayed and displaying the image of that object on a raster display, based on the calculated object data, the object display system having a shape generator pre-registered with the image of each object as block information represented by binary pixel data which are representative of transparent and opaque sections of the image, said shape generator being adapted to output the binary pixel data corresponding to one horizontal scan in the block of the object as transparent or opaque data for each pixel. By the shape generator judging whether each of pixels is transparent or opaque, the system can have very decreased amount of data required to perform the judgement and be of the entire simplified structure with decreased cost. Furthermore, the above judgement can be performed more rapidly.

公开(公告)号：EP0337458A2

公开(公告)日：1989-10-18

申请号：EP89106631.8

申请日：1989-04-13

申请人： NAMCO, LTD.

发明人： Ogawa, Toru ,  Sato, Seiichi

IPC分类号： G10H7/00 ,  G10H7/08 ,  G10H1/12

CPC分类号： G10H7/00 ,  G10H2250/195 ,  G10H2250/545 ,  Y10S84/09

摘要： The present invention provides an analog signal synthesizing apparatus including a waveform memory for storing a plurality of analog signals as PCM data sampled with different sampling frequencies, the amount of PCM data corresponding to plural channels being read from the waveform memory and used to synthesize the analog signals. The analog signal synthesizing apparatus includes an oversampling device for shifting the sampling frequency of said PCM data read from said waveform memory for each channel toward the side of high frequency; a summing device for summing the oversampled PCM data for the respective channel; a D/A converter for converting the summed data into an analog signal; and a low-pass filter for setting a cut-off frequency based on the sampling frequency shifted to the side of high frequency and for eliminating aliasing noises included in the PCM data from the synthesized analog signal. The elimination of the aliasing noise included in the PCM data for each channel is carried out at the common low-pass filter.

摘要翻译： 本发明提供了一种模拟信号合成装置，包括：波形存储器，用于存储多个模拟信号作为以不同采样频率采样的PCM数据，对应于多个通道的PCM数据量从波形存储器读取并用于合成模拟信号 信号。 模拟信号合成装置包括：过采样装置，用于将每个信道的所述波形存储器读出的所述PCM数据的采样频率向高频侧移位; 用于对相应信道的过采样PCM数据求和的求和装置; D / A转换器，用于将求和的数据转换为模拟信号; 以及低通滤波器，用于基于偏移到高频侧的采样频率设置截止频率，并且用于消除来自合成模拟信号的PCM数据中包含的混叠噪声。 在公共低通滤波器中执行每个信道的PCM数据中包含的混叠噪声的消除。

公开(公告)号：EP0323636A2

公开(公告)日：1989-07-12

申请号：EP88121807.7

申请日：1988-12-28

申请人： NAMCO, LTD.

发明人： Nakamura, Shigeichi ,  Ogawa, Toru ,  Inoue, Makoto ,  Sato, Seiichi

IPC分类号： G09G1/16 ,  A63F9/22

CPC分类号： G09G5/42 ,  A63F13/00 ,  A63F2300/203

摘要： The invention provides an object display system for calculating a set of object data including object identification cata, vertical display position data and horizontal display position data for each of objects to be displayed and displaying the image of that object on a raster display, based on the calculated object data, the object display system having a shape generator pre-registered with the image of each object as block information represented by binary pixel data which are representative of transparent and opaque sections of the image, said shape generator being adapted to output the binary pixel data corresponding to one horizontal scan in the block of the object as transparent or opaque data for each pixel. By the shape generator judging whether each of pixels is transparent or opaque, the system can have very decreased amount of data required to perform the judgement and be of the entire simplified structure with decreased cost. Furthermore, the above judgement can be performed more rapidly.

摘要翻译： 本发明提供一种对象显示系统，用于基于所述对象显示系统计算包括对象识别数据，垂直显示位置数据和用于每个要显示的对象的水平显示位置数据的一组对象数据，并且基于 计算对象数据，具有与每个对象的图像预注册的形状发生器的对象显示系统作为代表图像的透明和不透明部分的二进制像素数据表示的块信息，所述形状生成器适于输出二进制 对应于对象块中的一个水平扫描的像素数据作为每个像素的透明或不透明数据。 通过形状发生器判断每个像素是透明的还是不透明的，系统可以非常减少执行判断所需的数据量，并降低成本的整个简化结构。 此外，可以更快地执行上述判断。