Patents

I have over 80 issued and 40 pending patents.

Issued

  1. P.A. Chou, “Image recognition method using two-dimensional stochastic grammars,” US patent 5,020,112 issued May 28, 1991.
  2. G.E. Kopec and P.A. Chou, “Image recognition using finite-state networks,” US patent 5,321,773 issued June 14, 1994.
  3. G.E. Kopec, A.C. Kam, and P.A. Chou, “Document image decoding using modified branch-and-bound methods,” US patent 5,526,444 issued June 11, 1996.
  4. G.E. Kopec, P.A. Chou, L.T. Niles, “Automatic training of character templates using a text line image source, a text line transcription, and a line image source model,” US patent 5,594,809 issued January 14, 1997.
  5. M. Vishwanath and P.A. Chou, “Video image compression using weighted wavelet hierarchical vector quantization,” US patent 5,602,589 issued February 11, 1997.
  6. V. Balasubramanian, F.R. Chen, P.A. Chou, D.G. Kimber, A.D. Poon, K.A. Weber, and L.D. Wilcox, “Real-time audio recording system for automatic speaker indexing,” US patent 5,606,643 issued February 25, 1997.
  7. V. Balasubramanian, F.R. Chen, P.A. Chou, D.G. Kimber, A.D. Poon, K.A. Weber, and L.D. Wilcox, “Segmentation of audio data for indexing of conversational speech for real-time or postprocessing applications,” US patent 5,655,058 issued August 5, 1997.
  8. D. Bloomberg, L.T. Niles, G.E. Kopec, and P.A. Chou, “Method for aligning a text image to a transcription of the image,” US patent 5,689,585 issued November 18, 1997.
  9. G.E. Kopec, P.A. Chou, L.T. Niles, “Automatic training of character templates using a transcription and a two-dimensional image source model,” US patent 5,689,620 issued November 18, 1997.
  10. G.E. Kopec and P.A. Chou, “Method of producing character templates using unsegmented samples,” US patent 5,706,364 issued January 6, 1998.
  11. G.E. Kopec, P.A. Chou, and L.T. Niles, “Method and system for automatic transcription correction,” US patent 5,883,986 issued March 16, 1999.
  12. G.E. Kopec and P.A. Chou, “Unsupervised training of character templates using unsegmented samples,” US patent 5,956,419 issued September 21, 1999.
  13. E.I. Levine and P.A. Chou, “Error correction and loss recovery of packets over a computer network,” US patent 6,000,053 issued December 7, 1999.
  14. M. Vishwanath, P.A. Chou, and N. Chaddha, “Method for transmitting data using an embedded bit stream produced in a hierarchical table-lookup vector quantizer,” US patent 6,345,126 issued February 5, 2002.
  15. A.E. Klemets and P.A. Chou, “Interleaved multiple media stream for synchronized transmission over a computer network,” US patent 6,449,653 issued September 10, 2002.
  16. P.A. Chou, S. Mehrotra, and A. Wang, “Apparatus and method for unequal error protection in multiple-description coding using overcomplete expansions,” US patent 6,460,153 issued October 1, 2002.
  17. P.A. Chou, S. Mehrotra, and A. Wang, “Reconstruction of missing coefficients of overcomplete linear transforms using projections onto convex sets,” US Patent 6,470,469 issued October 22, 2002.
  18. P.A. Chou, A. Wang, and S. Mehrotra, “Receiver-driven layered error correction multicast over heterogeneous packet networks,” US Patent 6,532,562 issued March 11, 2003.
  19. P.A. Chou, A. Wang, S. Mehrotra, and A.E. Mohr, “Receiver-driven layered error correction multicast over heterogeneous packet networks,” US Patent 6,594,798 issued July 15, 2003.
  20. P.A. Chou, “Multimedia presentation latency minimization,” US patent 6,637,031 issued October 21, 2003.
  21. M. Vishwanath, P.A. Chou, and N. Chaddha, “A method for transmitting data using an embedded bit stream produced in a hierarchical table-lookup vector quantizer (continuation),” US patent 6,671,416 issued December 30, 2003.
  22. J. Hull, P.A. Chou, G.E. Kopec, and D. Arnon, “Automatic training of layout parameters in a 2D image model,” US patent 6,687,404 issued February 3, 2004.
  23. P.A. Chou, “System and method for media streaming,” US Patent 6,778,533 issued August 17, 2004.
  24. P.A. Chou, A. Wang, S. Mehrotra, and A.E. Mohr, “Receiver-driven layered error correction multicast over heterogeneous packet networks,” US Patent 6,996,097 issued February 7, 2006.
  25. P.A. Chou, V.N. Padmanabhan, and J. Wang, “Layered multiple description coding,” US Patent 7,222,285 issued May 22, 2007.
  26. D. Florencio, P.A. Chou, and L.-W. He, “System and method for providing high-quality stretching and compression of a digital audio signal,” US Patent 7,337, 108 issued February 26, 2008.
  27. P.A. Chou and K. Jain, “System and method for broadcasting information over a network,” US patent 7,349,440 issued March 25, 2008.
  28. P.A. Chou, A. Wang, S. Mehrotra, and A.E. Mohr, “Receiver-driven layered error correction multicast over heterogeneous packet networks,” US Patent 7,366,172 issued April 29, 2008.
  29. A.E. Klemets, R. Weiss, J. Ribas-Corbera, and P.A. Chou, “Streaming of variable bit rate multimedia content,” US patent 7,391,717 issued June 24, 2008.
  30. V.N. Padmanabhan, J. Wang, and P.A. Chou, “Method and systems for streaming data,” US Patent 7,400,577 issued July 15, 2008.
  31. P.A. Chou, Y. Wu, and K. Jain, “System and method for efficient broadcast of information over a network,” US patent 7,408,938 issued August 5, 2008.
  32. D. Florencio and P.A. Chou, “A system and method for real-time detection and preservation of speech onset in a signal,” US patent 7,412,376 issued August 12, 2008.
  33. P.A. Chou, “Multimedia presentation latency minimization,” US patent 7,424,730 issued September 9, 2008.
  34. P.A. Chou, V.N. Padmanabhan, and J. Wang, “Layered multiple description coding,” US Patent 7,426,677 issued September 16, 2008.
  35. A. D. Howell, D. Milstein, L. Criddle, M. Malueg, and P. A. Chou, “Extensible metadata structure,” US Patent 7,502,364 issued March 10, 2009.
  36. K. Jain, L. Lovasz, and P. A. Chou, “Scalable overlay network,” US Patent 7,529,198 issued May 5, 2009.
  37. P. A. Chou, A. Klemets, and C. Huang, “System and process for controlling the coding bit rate of streaming media data employing a limited number of supported coding bit rates,” US Patent 7,536,469 issued May 19, 2009.
  38. P. A. Chou, A. Klemets, and C. Huang, “System and process for performing an exponentially weighted moving average on streaming data to establish a moving average bit rate,” US Patent 7,543,073 issued June 2, 2009.
  39. J. Li, C. Zhang, and P. A. Chou, “Efficient one-to-many content distribution in a peer-to-peer computer network,” US Patent 7,593,333 issued September 22, 2009.
  40. J. Ribas-Corbera and P. A. Chou, “Generalized reference decoder for image or video processing,” US Patent 7,593,466 issued September 22, 2009.
  41. D. Florencio, L. He, and P. A. Chou, “A system and method for real-time jitter control and packet loss concealment in an audio signal,” US Patent 7,596,488 issued September 29, 2009.
  42. P. A. Chou, K. Jain, and D. Garg, “Congestion adaptive network data routing,” US Patent 7,613,121 issued November 3, 2009.
  43. A. D. Florencio and P.A. Chou, “Packet loss concealment for overlapped transform codecs,” US Patent 7,627,467 issued December 1, 2009.
  44. J. Li, S. Sengupta, M. Ponec, M. Chen, and P. A. Chou, “Rate-controllable peer-to-peer data stream routing,” US Patent 7,636,789 issued December 22, 2009.
  45. D. Teodosiu, P. A. Chou, A. Heron, C. Huang, T. Kleinpeter, J. Li, E. Schwartz, J. T. Spivey, D. C. Steere, and Y. Wu, “Scheduling connections between peers in a peer-to-peer file sharing environment,” US Patent 7,643,491 issued January 5, 2010.
  46. J. Ribas-Corbera and P.A. Chou, “Generalized reference decoder for image or video processing,” US Patent 7,646,816 issued January 12, 2010.
  47. P. A. Chou, A. Wang, S. Mehrotra, and A. Mohr, “Receiver-driven layered error correction multicast over heterogeneous packet networks,” US Patent 7,697,514 issued April 13, 2010.
  48. S. Liu, S. Sengupta, M. Chiang, J. Li, and P. A. Chou, “Models for routing tree selection in peer-to-peer communication,” US Patent 7,738,406 issued June 15, 2010.
  49. P. A. Chou, Y. Wu, and K. Jain, “System and method for efficient broadcast of information over a network,” US Patent 7,760,728 issued July 20, 2010.
  50. V. N. Padmanabhan, J. Wang, and P. A. Chou, “System and Method for Distributing Streaming Content through Cooperative Networking,” US Patent 7,792,982 issued September 7, 2010.
  51. Z. Zhang, X. D. Huang, Z. Liu, C. Zhang, P. A. Chou, and C. Huitema, “Participant positioning in multimedia conferencing,” US Patent 7,840,638 issued November, 23 2010.
  52. W. V. Barkley, P. A. Chou, R. J. Crinon, and T. Moore, “Techniques to perform rate matching for multimedia conference calls,” US Patent 7,898,950 issued March 1, 2011.
  53. D. Florencio and P. A. Chou, “Real-time detection and preservation of speech onset in a signal,” US Patent 7,917,357 issued March 29, 2011.
  54. Z. Liu, Z. Zhang, P. A. Chou, and M. Chen, “Energy-based sound source localization and gain normalization,” US Patent 7,924,655 issued April 12, 2011.
  55. A. Hassan, C. Huitema, W. Stark, Y. Wu, and P. A. Chou, “FEC in cognitive multi-user OFDMA,” US Patent 7,929,623 issued April 19, 2011.
  56. J. Li, D. Teodosiu, P. A. Chou, C. Huang, E. Schwartz, J. T. Spivey, Y. Wu, and A. Heron, “Content synchronization in a file-sharing environment,” US Patent 7,953,785 issued May 31, 2011.
  57. D. Howell, D. Milstein, K. Wang, L. Criddle, P. A. Chou, S. Forbes, T. Moore, and M. Malueg, “Metadata collection,” US Patent 7,983,247 issued July 19, 2011.
  58. Y. Wu, J. D. Padhye, R. Chandra, V. N. Padmanabhan, P. A. Chou, and M. J. Khaki, “Local network coding for wireless networks,” US Patent 8,040,836 issued October 18, 2011.
  59. Z. Liu, R. Hegde, and P. A. Chou, “Virtual Media Input Device,” US Patent 8,140,715 issued March 20, 2012.
  60. J. Dmochowski, Z. Liu, and P. A. Chou, “Speech separation with microphone arrays,” US Patent 8,144,896 issued March 27, 2012.
  61. R. Hegde, Z. Liu, L. He, P. A. Chou, and C. A. Meek, “Collaborative media recommendation and sharing technique,” US Patent 8,200,681 issued June 12, 2012.
  62. D. Howell, D. Milstein, K. Wang, L. Criddle, P. A. Chou, S. Forbes, and T. Moore, “VoIP contextual information processing,” US Patent 8,228,824 issued July 24, 2012.
  63. M. Chen, M. Ponec, S. Sengupta, J. Li, and P. A. Chou, “Rate-controllable peer-to-peer data stream routing,” US Patent 8,260,951 issued September 4, 2012.
  64. S. Sengupta, M. Chen, J. Li, P. A. Chou, and M. Ponec, “Multi-rate peer-assisted data streaming,” US Patent 8,260,952 issued September 4, 2012.
  65. R. Hegde, C. Zhang, P. A. Chou, and Z. Liu, “Management of split audio video streams,” US Patent 8,276,195 issued September 25, 2012.
  66. D. Howell, D. Milstein, L. Criddle, P. A. Chou, and T. Moore, “Providing contextual information with a voicemail message,” US Patent 8,280,015 issued October 2, 2012.
  67. D. A. Florencio, A. Acero, W. Buxton, P. A. Chou, R. G. Cutler, J. Garms, C. Huitema, K. M. Quinn, D. A. Rosenfeld, and Z. Zhang “Audio Transform in Connection with Multiparty Communication,” US Patent 8,340,267 issued December 25, 2012.
  68. D. Howell, D. Milstein, L. Criddle, and P. A. Chou, “Processing a received voicemail message,” US Patent 8,385,513 issued February 26, 2013.
  69. D. A. Rosenfeld, Z. Liu, R. G. Cutler, P. A. Chou, C. Huitema, and K. M. Quinn, “Interest Determination for Auditory Enhancement,” US Patent 8,416,715 issued April 9, 2013.
  70. D. Milstein, D. A. Howell, L. Criddle, P. A. Chou, and T. Moore, “Providing contextual information with a voicemail message,” US Patent 8,483,368 issued July 9, 2013.
  71. R. Hegde, Z. Zhang, P. A. Chou, Z. Liu, C. Zhang, and S. Junuzovic, “Multi-device capture and spatial browsing of conferences”, US Patent 8,537,196 issued September 17, 2013.
  72. D. Florencio, P. A. Chou, and S. S. Kozat, “Forward error correction for media transmission,” US Patent 8,553,757 issued October 8, 2013.
  73. S. K. Cunnington, R. K. Hegde, K. Quinn, J. Li, P. A. Chou, Z. Zhang, and D. Tan, “Detecting reactions and providing feedback to an interaction,” US Patent 8,670,018 issued March 11, 2014.
  74. P. A. Chou, Z. Zhang, C. Zhang, D. A. Florencio, Z. Liu, R. K. Hegde, and N. Chandrasekaran, “Immersive remote conferencing,” US Patent 8,675,067 issue March 18, 2014.
  75. W. V. Barkley, P. A. Chou, R. J. Crinon, and T. Moore, “Techniques for managing visual compositions for a multimedia conference call,” US Patent 8,773,494 issued July 8, 2014.
  76. P. A. Chou, Z. Zhang, and D. Florencio, “Augmented auditory perception for the visually impaired,” US Patent 8,797,386 issued August 5, 2014.
  77. Y. Wu, Y. Zhao, B. Li, M. Chen, J. Li, and P. A. Chou, “Multiparty real time content delivery,” US Patent 8,824,470 issued September 2, 2014.
  78. D. Howell, D. Milstein, P. A. Chou, M. Malueg, and L. Criddle, “VoIP variable metadata,” US Patent 8,842,660 issued September 23, 2014.
  79. B. Byun, P. A. Chou, M. P. Czerwinski, A. Kapoor, and B. Lee, “Non-Linguistic Signal Detection and Feedback,” US Patent 8,963,987 issued February 24, 2015.
  80. D. Howell, L. Criddle, M. Malueg, P. A. Chou, and L. Smith, “Transmitting packet-based data items,” US Patent 8,971,217 issued March 3, 2015.
  81. W. V. Barkley, P. A. Chou, R. J. Crinon, and T. Moore, “Techniques for virtual conferencing servers,” US Patent 8,990,305 issued March 24, 2015.
  82. P.A. Chou, C. Zhang, Z. Zhang, and S. Liu, “Recovering dis-occluded areas using temporal information integration,” US Patent 9,031,357 issued May 12, 2015.
  83. C. Huang, J. Li, S. Mehrotra, P. A. Chou, F. Livni, H. Chen, J. Thaler, C. Zhang, and K. W. Ross, “Minimizing Network Latency in Interactive Internet Applications,” US Patent 9,059,817 issued June 16, 2015.
  84. J. Li, J. E. Oker, R. K. Hegde, D. A. F. Florencio, M. Pahud, S. K. Cunnington, P. A. Chou, and Z. Zhang, “Adaptive Meeting Management,” US Patent 9,111,263 issued August 18, 2015.
  85. D. Florencio, P. A. Chou, and S. S. Kozat, “Error resilient coding and decoding for media transmission,” US Patent 9,380,094 issued June 28, 2016.

Pending

Over 40 other patents pending.