Issued Patents All Time
Showing 101–125 of 133 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7380404 | Method and control for determining low refrigerant charge | Pengju Kang, Mohsen Farzad, Payman Sadegh | 2008-06-03 |
| 7261762 | Technique for detecting and predicting air filter condition | Pengju Kang, Mohsen Farzad, Slaven Stricevic, Payman Sadegh | 2007-08-28 |
| 7224807 | System for computationally efficient active control of tonal sound or vibration | William A. Welsh, Douglas G. MacMartin | 2007-05-29 |
| 7219506 | Method for estimating inlet and outlet air conditions of an HVAC system | Pengju Kang, Mohsen Farzad, Payman Sadegh, Slaven Stricevic | 2007-05-22 |
| 7200524 | Sensor fault diagnostics and prognostics using component model and time scale orthogonal expansions | Pengju Kang, Mohsen Farzad, Slaven Stricevic, Payman Sadegh | 2007-04-03 |
| 7171003 | Robust and reliable acoustic echo and noise cancellation system for cabin communication | Saligrama R. Venkatesh | 2007-01-30 |
| 7159408 | Charge loss detection and prognostics for multi-modular split systems | Payman Sadegh, Mohsen Farzad, Pengju Kang, Slaven Stricevic | 2007-01-09 |
| 7117145 | Adaptive filter for speech enhancement in a noisy environment | Saligrama R. Venkatesh | 2006-10-03 |
| 7077244 | Elevator cab locating system including wireless communication | Jae-Hyuk Oh, Pei-Yuan Peng | 2006-07-18 |
| 7039197 | User interface for communication system | Saligrama R. Venkatesh, Philip LeMay, Ronald K. Reich, Mark W. Davis, James J. Dattolo +2 more | 2006-05-02 |
| 6813895 | Supercritical pressure regulation of vapor compression system by regulation of adaptive control | Bryan A. Eisenhower, Christopher Park, Pengju Kang, Tobias H. Sienel | 2004-11-09 |
| 6748086 | Cabin communication system without acoustic echo cancellation | Saligrama R. Venkatesh | 2004-06-08 |
| 6674865 | Automatic volume control for communication system | Saligrama R. Venkatesh, Ronald K. Reich | 2004-01-06 |
| 6535609 | Cabin communication system | Gonzalo Javier Rey | 2003-03-18 |
| 6314394 | Adaptive signal separation system and method | — | 2001-11-06 |
| RE36752 | Cryptographic authentication of transmitted messages using pseudorandom numbers | Philip J. Koopman, Jr. | 2000-06-27 |
| 5940002 | Security system with random number remote communication | Philip J. Koopman, Jr., Roger D. Carroll | 1999-08-17 |
| RE36181 | Pseudorandom number generation and crytographic authentication | Philip J. Koopman, Jr. | 1999-04-06 |
| 5831227 | Differential magnetic alignment of an elevator and a landing | Jean-Noel Cloux, Peter Herkel, Jean-Pierre Pougny, Helmut Schroder-Brumloop, Armando Servia +1 more | 1998-11-03 |
| 5699437 | Active noise control system using phased-array sensors | — | 1997-12-16 |
| 5682024 | Elevator position determination | Philip J. Koopman, Jr. | 1997-10-28 |
| 5649014 | Pseudorandom composition-based cryptographic authentication process | Philip J. Koopman, Jr., Robert E. LaBarre | 1997-07-15 |
| 5619575 | Pseudorandom composition-based cryptographic authentication process | Philip J. Koopman, Jr., Robert E. LaBarre | 1997-04-08 |
| 5398284 | Cryptographic encoding process | Philip J. Koopman, Jr. | 1995-03-14 |
| 5377270 | Cryptographic authentication of transmitted messages using pseudorandom numbers | Philip J. Koopman, Jr. | 1994-12-27 |