Number | Date | Country | Kind |
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5-237529 | Sep 1993 | JPX |
Number | Name | Date | Kind |
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3623105 | Kamen et al. | Nov 1971 | |
4211894 | Watanabe et al. | Jul 1980 | |
5363428 | Nagashima | Nov 1994 |
Number | Date | Country |
---|---|---|
60-62739 | Apr 1985 | JPX |
Entry |
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"Mobile Communication System Handbook", 1989--Electromagnetic Wave System Development Center of Japan. pp. 6 and 7. |
Fumio Tamita et al "PSK Group Modem and its Performance", IEEE Globecom, 1986, pp. 1696-1702. |