| 7529253 |
IP packet ready PBX expansion circuit for a conventional personal computer with expandable, distributed DSP architecture |
Charles Arnold Lasswell, Gregory Schultz |
2009-05-05 |
| 7023867 |
PBX with configurable analog CO line and T1 signalling protocols using packet bus and software switched WAV channels |
Joon-Suk Park, Charles Arnold Lasswell, Gregory Schultz, Ronald C. Fish |
2006-04-04 |
| 6795448 |
IP packet ready PBX expansion circuit for a conventional personal computer with expandable, distributed DSP architecture |
Charles Arnold Lasswell, Gregory Schultz |
2004-09-21 |
| 6584140 |
Spectrum efficient fast frequency-hopped modem with coherent demodulation |
— |
2003-06-24 |
| 5832236 |
High speed frame translation for computer networks |
— |
1998-11-03 |
| 5742760 |
Network packet switch using shared memory for repeating and bridging packets at media rate |
Jose J. Picazo, Jr., Robert Philip Zager |
1998-04-21 |