Number | Date | Country | Kind |
---|---|---|---|
7-203992 | Jul 1995 | JPX | |
7-205377 | Jul 1995 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3912916 | Grun et al. | Oct 1975 | |
4868428 | Cooper | Sep 1989 |
Number | Date | Country |
---|---|---|
357152789 | Sep 1982 | JPX |
Entry |
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"Digital Analog Communication System (First Volume)" by B. P. Russi, pp. 226-251, published by CBS Corp., Mar. 28, 1995. |