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1. 发明授权

US4068262A Auxiliary variable coordinate sonic display system 失效
标题翻译：辅助可变坐标声波显示系统
公开(公告)号：US4068262A
公开(公告)日：1978-01-10
申请号：US755781
申请日：1976-12-30
申请人： Michael E. Sandler , Jeffrey C. Rodman
发明人： Michael E. Sandler , Jeffrey C. Rodman
IPC分类号： H04N11/00 , H04N9/02
CPC分类号： H04N11/00
摘要： Method and apparatus for creating a dynamic image on a television receiver display screen reflecting mood and character of music. Methods of pattern generation and color modulation are described. The pattern as seen by a viewer is a derived X-Y coordinate plot. The invention contemplates a format translator which is defined as a memory that samples an audio waveform periodically, determines the screen position corresponding to each sample, and stores video pulses in memory locations corresponding to those screen positions. The memory is then read in a line-by-line format for television display. The memory is thus written into in an X-Y format and read out in a raster scan format. Symmetry and variable image change rate can be employed in order to produce a pattern with pleasing effects. Image color is varied by shifting the phase of the chrominance sub-carrier as a function of the music envelope. Image color and intensity formation are then combined in an output mixer to produce a standard composite video output signal.
摘要翻译：用于在电视接收机显示屏幕上创建反映情绪和音乐特征的动态图像的方法和装置。描述了图案生成和颜色调制的方法。观察者看到的图案是衍生的X-Y坐标图。本发明设想一种格式转换器，其被定义为周期性地对音频波形进行采样的存储器，确定与每个采样相对应的屏幕位置，并且将视频脉冲存储在对应于那些屏幕位置的存储器位置中。然后以逐行格式读取存储器用于电视显示。因此，存储器以X-Y格式写入并以光栅扫描格式读出。可以使用对称性和可变图像变化率来产生具有令人愉快效果的图案。通过根据音乐包络移动色度副载波的相位来改变图像颜色。然后将图像颜色和强度形成在输出混合器中组合以产生标准复合视频输出信号。

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