| 6552832 |
Telecommunications system including transmultiplexer installed between digital switch and optical signal transmission fiber |
William C. G. Ortel, Jacob Needle |
2003-04-22 |
| 6538781 |
Multimedia distribution system using fiber optic lines |
Jacob Needle, Dimitrios Kokkinos |
2003-03-25 |
| 6084946 |
Qualifying a telephone line for digital transmission service |
— |
2000-07-04 |
| 6009084 |
Concentrating transmultiplexer for cable telephony |
William C. G. Ortel |
1999-12-28 |
| 5764754 |
Subscriber loop reconnection device and method |
William G. Ortel |
1998-06-09 |
| 5715242 |
System for integrated distribution of switched voice and television on coaxial cable with phase distortion correction |
William C. G. Ortel |
1998-02-03 |
| 5512937 |
System for integrated distribution of switched voice and television on coaxial cable and with video signal transmission originating from subscriber locations |
— |
1996-04-30 |
| 5351234 |
System for integrated distribution of switched voice and television on coaxial cable |
William C. G. Ortel |
1994-09-27 |
| 5200996 |
Station controller for multi-line pick-up and automatic monitoring of telephone station moves |
— |
1993-04-06 |
| 4885769 |
Station controller for enhanced multi-line pick-up in centrex exchange telephone system |
— |
1989-12-05 |
| 4757497 |
Local area voice/data communications and switching system |
Brian Sherman |
1988-07-12 |