Issued Patents All Time
Showing 51–72 of 72 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6389298 | Signaling to support wireless service redirection | Gabriela M. Abramovici, Michael D. Chambers, Yuen-Yin L. Koo | 2002-05-14 |
| 6381235 | Wireless CDMA system having a unique forward configuration control channel | Raafat Edward Kamel, Yuen-Yin L. Koo, Wen-Yi Kuo | 2002-04-30 |
| 6377687 | Methods and apparatus for enhanced CMEA employing enhanced transformations | Mark H. Etzel, Robert John Frank, Daniel Nelson Heer, Robert Joseph McNelis, Robert J. Rance +1 more | 2002-04-23 |
| 6330333 | Cryptographic system for wireless communications | James Alexander Reeds, III | 2001-12-11 |
| 6266412 | Encrypting speech coder | Adam Berenzweig, Steven Anthony Falco, Winston Edward Pekrul, Robert J. Rance, Donald Joseph Youtkus | 2001-07-24 |
| 6266411 | Method and apparatus for multiple-iteration CMEA encryption and decryption for improved security for wireless telephone messages | Mark H. Etzel, Robert John Frank, Daniel Nelson Heer, Robert Joseph McNelis, Robert J. Rance +1 more | 2001-07-24 |
| 6233337 | Methods and apparatus for enhanced security expansion of a secret key into a lookup table for improved security for wireless telephone messages | Mark H. Etzel, Robert John Frank, Daniel Nelson Heer, Robert Joseph McNelis, Robert J. Rance +1 more | 2001-05-15 |
| 6141550 | Short message service | Benson S. Ayabe, Sharat Chander | 2000-10-31 |
| 6111955 | Security in cellular telephones | James Alexander Reeds, III | 2000-08-29 |
| 6108530 | System and method for transmitting a displayable message between short message entities in more than one data package | Benson S. Ayabe, Sharat Chander | 2000-08-22 |
| 5983115 | Geographic based method for selecting a wireless communications service provider | — | 1999-11-09 |
| 5960363 | Tone generating apparatus for a cellular telephone to simulate tones normally sensed by a user of a land-line telephone | Geoffrey Anderson, Gerard Wahl, Peter Douma, Masaaki Akahane | 1999-09-28 |
| 5943425 | Re-authentication procedure for over-the-air activation | — | 1999-08-24 |
| 5909651 | Broadcast short message service architecture | Sharat Chander | 1999-06-01 |
| 5794139 | Automatic generation of private authentication key for wireless communication systems | Geoffrey Anderson, Peter Douma, Masaaki Akahane, Hiroshi Yasuda | 1998-08-11 |
| 5748734 | Circuit and method for generating cryptographic keys | — | 1998-05-05 |
| 5583965 | Methods and apparatus for training and operating voice recognition systems | Peter Douma, Geoffrey Anderson, Masaaki Akahane | 1996-12-10 |
| 5559860 | User selectable response to an incoming call at a mobile station | — | 1996-09-24 |
| 5524135 | Method and apparatus for secure downloading of operational information into a wireless communications device | Geoffrey Anderson, Gerard Wahl, Peter Douma, Masaaki Akahane | 1996-06-04 |
| 5513245 | Automatic generation of private authentication key for wireless communication systems | Geoffrey Anderson, Peter Doums, Masaaki Akahanc, Hiroshi Yasuda | 1996-04-30 |
| 5255307 | Status indicator control for cellular mobile telephone system | — | 1993-10-19 |
| 5228074 | Dual mode cellular telephone apparatus | — | 1993-07-13 |