Number | Date | Country | Kind |
---|---|---|---|
6-189351 | Aug 1994 | JPX | |
6-299882 | Dec 1994 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
5267154 | Takeuchi et al. | Nov 1993 | |
5483630 | Unuma et al. | Jan 1996 | |
5506949 | Perrin | Apr 1996 | |
5581665 | Sugiura et al. | Dec 1996 |
Entry |
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Foley et al, Computer Graphics Principles and Practice, second edition, Addison-Wesley Publishing Company, 1993, pp. 217-226. |