Issued Patents 2005
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6980651 | Method for using an access card to create a secure sub-network on a public network | Louis Litwin, Michael Arthur Derrenberger | 2005-12-27 |
| 6956933 | Directory delivery system and method for a digital subscriber line modem | David Emery Virag, John Richardson | 2005-10-18 |
| 6954793 | Pre-paid data card authentication in a public wireless LAN access system | Charles Chuanming Wang, Junbaio Zhang, Sachin Mody | 2005-10-11 |
| 6904031 | Retrieving stored data from a base unit of a multi-line wireless phone system | Paul Gothard Knutson | 2005-06-07 |
| 6900828 | Fade resistant digital transmission and reception system | Paul Gothard Knutson, Jeffrey Allen Cooper | 2005-05-31 |
| 6888840 | Output symbol rate control in a packet transport rate conversion system | Paul Gothard Knutson | 2005-05-03 |
| 6888832 | Method and system for notifying customer of voicemail using an ATM signaling channel from an ATM/DSL head-end network | John Richardson | 2005-05-03 |
| 6847627 | Time-division multiple access (TDMA) multi-line wireless telephone system | Paul Gothard Knutson | 2005-01-25 |