Number | Date | Country | Kind |
---|---|---|---|
196 51 833 | Dec 1996 | DE |
Number | Name | Date | Kind |
---|---|---|---|
5297191 | Gerszberg | Mar 1994 | |
5749052 | Hidem et al. | May 1998 | |
5819175 | Niemi | Oct 1998 | |
5926756 | Piosenka et al. | Jul 1999 |
Number | Date | Country |
---|---|---|
3620925 | Jan 1988 | DE |
4333272 | Apr 1995 | DE |
0478231 | Apr 1992 | EP |
0 590 334 B1 | Apr 1994 | EP |
0590334 | Apr 1994 | EP |
2249923 | Jul 1991 | GB |
2256113 | May 1992 | GB |
Entry |
---|
Schwartz, B.K. & Weinstein, S.B. of Bell Communications Research, Red Bank NJ, “Dual-media messaging using screen telephones on the telephone network,” in ICC '93 Geneva, Technical Program, Conference Record, IEEE International Conference on Communications, vol. 2, pp. 1183-1186 (May 23-26, 1993). |