Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5661794 | Telephone line interface circuit with voltage control | Stanley D. Rosenbaum | 1997-08-26 |
| 5511118 | Method of providing d.c. feed to a telephone line | Stanley Adam Gores, Joseph F. M. Darveau, Francois Tremblay, Stanley D. Rosenbaum | 1996-04-23 |
| 5390231 | Protection and recovery of telephone line interface circuits | Paul Fong-Yan Hung, Stanley D. Rosenbaum, Joseph F. M. Darveau, Brian A. F. S. Sutherland, Francois Tremblay | 1995-02-14 |
| 5323461 | Telephone line interface circuit with voltage switching | Stanley D. Rosenbaum, Brian A. F. S. Sutherland | 1994-06-21 |
| 5274702 | Wideband telephone line interface circuit | Stanley D. Rosenbaum | 1993-12-28 |
| 5258713 | Impedance generator for a telephone line interface circuit | Graeme B. Boyd, Mark Feeley | 1993-11-02 |
| 4947427 | Protection arrangement for a telephone subscriber line interface circuit | Stanley D. Rosenbaum | 1990-08-07 |
| 4764956 | Active impedance line feed circuit | Stanley D. Rosenbaum, Calvin Plett, Zdenek Holy | 1988-08-16 |
| 4446338 | Telephone lines status sensor | — | 1984-05-01 |