| Number | Name | Date | Kind |
|---|---|---|---|
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| 4763353 | Canale et al. | Aug 1988 | |
| 4785408 | Britton et al. | Nov 1988 | |
| 4797911 | Szlam et al. | Jan 1989 | |
| 4817130 | Frimmel, Jr. | Mar 1989 | |
| 4829514 | Frimmel, Jr. et al. | May 1989 | |
| 4845739 | Katz | Jul 1989 | |
| 4908850 | Masson et al. | Mar 1990 | |
| 4922519 | Daudelin | May 1990 | |
| 4926462 | Ladd et al. | May 1990 |
| Entry |
|---|
| "Conversant 1 Voice Systems: Architecture and Applications", R. J. Perdue et al., AT&T Tech. Journal, vol. 65, No. 5, Sep./Oct. 1986, pp. 34-47. |