Patents
- “Secure voice transmission,” USA Patent No. 4,612,414, Sept. 16, 1986 also pending in Japan, Spain, Canada, Belgium, France, Germany, Great Britain, and Sweden (8/84)
- “Speech recognition based upon mixture density hidden Markov models,” USA Patent No. 4,783,804, Nov. 8, 1988, with L. R. Rabiner, S. E. Levinson, and M. M. Sondhi
- “Training Method and Apparatus for Speech Recognition,” with Wu Chou and C. H. Lee, USA Patent pending, 1992
- “Speaker verification with cohort normalized scoring,” with A. E. Rosenberg, J. DeLong, C-H Lee and F. K. Soong, USA Patent 5,675,704, Nov. 1993
- “Minimum Error Rate Training Based on Competing Word and Word String Models,” with Wu Chou, USA Patent 5,579,436, Nov. 26, 1996
- “Minimum Error Rate Training of Combined String Models,” with Wu Chou and C. H. Lee, USA Patent 5,606,644, Feb. 25, 1997
- “Signal Bias Removal for Robust Telephone Speech Recognition,” with Mazin Rahim, USA Patent 5,590,242, Dec. 31, 1996
- “A training procedure for word hypothesis testing,” with C. H. Lee and R. C. Rose, USA Patent pending, 1994
- “Systems, methods and articles of manufacture for improving recognition confidence in hypothesized keywords,” USA Patent 5,710,864, with W. Chou, C. H. Lee and T. Matsuoka, Jan. 20, 1998.
- “Systems, methods and articles of manufacture for performing high resolution N-best string hypothesization,” USA Patent 5,805,772, with W. Chou, C. H. Lee and T. Matsuoka, September 8, 1998.
- “Discriminative utterance verification for connected digit recognition,” with W. Chou, C. H. Lee and M. G. Rahim, USA Patent 5,737,489, April 7, 1998.
- “Adaptive Decision Directed Speech Recognition Bias Equalization Method And Apparatus,” with David Mansour, US Patent 5,812,972, September 22, 1998.
- “Discriminative Training And Adaptation Of The Pronunciations Networks,” with Filipp Korkmazskiy, US Patent Pending, June 1998.
- “Speech Recognition Method With Error Reset Commands,” US Patent 5,781,887, July 14, 1998.
- “Method Of Key-Phrase Detection And Verification For Flexible Speech Understanding,” with Wu Chou and C. H. Lee, US Patent 5,797,123, Dec. 1996.
- “Method And Apparatus For Providing Speaker Authentication By Verbal Information,” with Q. Li, US Patent Pending, July 1997.
- “Text Proofreading System And Method,” with Wu Chou, US Patent Pending, July 1997.
- “Context interpolating web proxy server” with Mike Brown, US Patent Pending, July 2000.
- “A New Discriminative Training Algorithm for Pattern Recognition” with Q. Li, filed on 5/31/02.