Number | Date | Country | Kind |
---|---|---|---|
4-196109 | Jun 1992 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4393490 | Culley | Jul 1983 | |
4424421 | Townsend et al. | Jan 1984 | |
4575839 | Ogata et al. | Mar 1986 | |
4821256 | Schmidt et al. | Apr 1989 | |
4845711 | LeFort et al. | Jul 1989 | |
4878048 | Gottesman et al. | Oct 1989 | |
5239537 | Sakauchi | Aug 1993 |
Number | Date | Country |
---|---|---|
57-152266 | Sep 1982 | JPX |
60-018051 | Jan 1985 | JPX |
61-200752 | Sep 1986 | JPX |
2064270 | Jun 1981 | GBX |
8602796 | May 1986 | WOX |
8603357 | Jun 1986 | WOX |
9204794 | Mar 1992 | WOX |
Entry |
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"Loop Test System: A New Maintenance Feature for the Distributed Integrated Digital Network", Clark et al., IEEE, vol. COM-29, No. 10, Oct. 1981, pp. 1419-1428. |
"Maintenance and Administration System for DTS-21 Digital Local Switching System", Yokota, et al., Review of Electrical Communication Laboratories, vol. 31, No. 1, (1983). |
"A New Approach to Testing Loops Served by Pair Gain Systems", Swanson, IEEE, 1979, pp. 51.6.1-51.6.5. |