Number | Date | Country | Kind |
---|---|---|---|
62-34800 | Feb 1987 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4344176 | Qureshi | Aug 1982 | |
4362909 | Snijders et al. | Dec 1982 | |
4628157 | Chance et al. | Dec 1986 | |
4748498 | Yamanashi et al. | May 1988 |
Entry |
---|
P. F. Adams, S. A. Cox and P. J. Glenn, "Long Reach Duplex Transmission Systems for ISDN Access", pp. 35-42, British Telecommunications J., vol. 2, No. 2, Apr. 1984. |
P. F. Adams, "High Pass Filter Location in 2B1Q Transceivers", American National Standards Inst. Telecommunications Committee, Doc. No. T1D1.3/86-193, Oct. 8, 1986. |