Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7349845 | Method and apparatus for dynamic modification of command weights in a natural language understanding system | Daniel M. Coffman, Jan Kleindienst | 2008-03-25 |
| 7275030 | Method and apparatus to compensate for fundamental frequency changes and artifacts and reduce sensitivity to pitch information in a frame-based speech processing system | Jiri Navratil, Ran Zilca | 2007-09-25 |
| 7249263 | Method and system for user authentication and identification using behavioral and emotional association consistency | Upendra V. Chaudhari, Jiri Navratil, Ran Zilca | 2007-07-24 |
| 7228279 | Automated decision making using time-varying stream reliability prediction | Upendra V. Chaudhari, Chalapathy Neti, Gerasimos Potamianos | 2007-06-05 |
| 7207068 | Methods and apparatus for modeling based on conversational meta-data | Upendra V. Chaudhari | 2007-04-17 |
| 7069220 | Method for determining and maintaining dialog focus in a conversational speech system | Daniel M. Coffman, Popani Gopalakrishnan, Jan Kleindienst | 2006-06-27 |
| 7039587 | Speaker identification employing a confidence measure that uses statistical properties of N-best lists | Upendra V. Chaudhari, Jiri Navratil | 2006-05-02 |
| 7039951 | System and method for confidence based incremental access authentication | Upendra V. Chaudhari | 2006-05-02 |
| 7024008 | Acoustic quality enhancement via feedback and equalization for mobile multimedia systems | Anand Narasimhan | 2006-04-04 |
| 7016827 | Method and system for ensuring robustness in natural language understanding | Kyle Jamieson, Jan Kleindienst | 2006-03-21 |
| 6799169 | Method and system for modeless operation of a multi-modal user interface through implementation of independent decision networks | Daniel M. Coffman, Popani Gopalakrishnan, Jan Kleindienst | 2004-09-28 |
| 6772119 | Computationally efficient method and apparatus for speaker recognition | Upendra V. Chaudhari, Ran Zilca | 2004-08-03 |
| 6658388 | Personality generator for conversational systems | Jan Kleindienst, Ponani Gopalakrishnan, Daniel M. Coffman | 2003-12-02 |
| 6622119 | Adaptive command predictor and method for a natural language dialog system | Jan Kleindienst | 2003-09-16 |
| 6598020 | Adaptive emotion and initiative generator for conversational systems | Jan Kleindienst, Ponani Gopalakrishnan, Daniel M. Coffman | 2003-07-22 |
| 6490560 | Method and system for non-intrusive speaker verification using behavior models | Upendra V. Chaudhari | 2002-12-03 |
| 6453292 | Command boundary identifier for conversational natural language | Jan Kleindienst | 2002-09-17 |
| 6377913 | Method and system for multi-client access to a dialog system | Daniel M. Coffman, Popani Gopalakrishnan, Jan Kleindienst, Chalapathy Neti | 2002-04-23 |
| 6311150 | Method and system for hierarchical natural language understanding | Jan Kleindienst | 2001-10-30 |
| 6252968 | Acoustic quality enhancement via feedback and equalization for mobile multimedia systems | Anand Narasimhan | 2001-06-26 |
| 6188976 | Apparatus and method for building domain-specific language models | Harry Printz, Ponani Gopalakrishnan | 2001-02-13 |
| 6009387 | System and method of compression/decompressing a speech signal by using split vector quantization and scalar quantization | Ponani Gopalakrishnan, Joseph P. Morris | 1999-12-28 |