@article{oai:ipsj.ixsq.nii.ac.jp:00059960,
 author = {Hiromi, Hiraishi and Shuzo, Yajima and Hiromi, Hiraishi and Shuzo, Yajima},
 issue = {4},
 journal = {Journal of Information Processing},
 month = {Feb},
 note = {There are two classes of computer graphic display devices currently in common use: random-scan displays and raster-scan displays. In random-scan displays light pens have been utilized as picking devices  but it has been difficult to utilize them for specifying a figure or sub-picture directly in raster-scan displays. On the other hand  raster-scan displays provide flicker-free colored complex and/or solid pictures. In this paper a new raster-scan computer graphic display device having random-scan functions with color specifying light pen facility (DIGRAPH) is introduced  which possesses both features of usual raster-scan and random-scan displays. Although it uses a color television monitor  it can be treated as if it were a random-scan display including its random-scan type light pen functions  which makes it possible to utilize graphics software developed for random-scan displays. The colors to be detected by a light pen can be specified. The design philosophies  configurations and new technical ideas of the proposed device are described. Furthermore  the performance is evaluated to be very high because display instructions need not be executed repeatedly as usually required on random-scan displays., There are two classes of computer graphic display devices currently in common use: random-scan displays and raster-scan displays. In random-scan displays light pens have been utilized as picking devices, but it has been difficult to utilize them for specifying a figure or sub-picture directly in raster-scan displays. On the other hand, raster-scan displays provide flicker-free colored complex and/or solid pictures. In this paper a new raster-scan computer graphic display device having random-scan functions with color specifying light pen facility (DIGRAPH) is introduced, which possesses both features of usual raster-scan and random-scan displays. Although it uses a color television monitor, it can be treated as if it were a random-scan display including its random-scan type light pen functions, which makes it possible to utilize graphics software developed for random-scan displays. The colors to be detected by a light pen can be specified. The design philosophies, configurations and new technical ideas of the proposed device are described. Furthermore, the performance is evaluated to be very high because display instructions need not be executed repeatedly as usually required on random-scan displays.},
 pages = {186--194},
 title = {A Raster-scan Computer Graphic Display Device Having Random-scan Functions with Color Specifying Light Pen Facility},
 volume = {4},
 year = {1982}
}