Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10334384 | Scheduling playback of audio in a virtual acoustic space | Xuejing Sun, Richard J. Cartwright, Michael Eckert | 2019-06-25 |
| 9749473 | Placement of talkers in 2D or 3D conference scene | Michael Eckert, Gary Spittle | 2017-08-29 |
| 9654644 | Placement of sound signals in a 2D or 3D audio conference | Gary Spittle | 2017-05-16 |
| 9502047 | Talker collisions in an auditory scene | Gary Spittle | 2016-11-22 |
| 8682650 | Speech-quality assessment method and apparatus that identifies part of a signal not generated by human tract | Philip Gray | 2014-03-25 |
| 7978613 | Test signalling | Philip Gray, Richard J B Reynolds, Antony Rix | 2011-07-12 |
| 7715592 | Analysis of video signal quality | Alexandre Bourret | 2010-05-11 |
| 7567548 | Method to reduce the distortion in a voice transmission over data networks | Richard J B Reynolds, Philip Gray, Antony Rix | 2009-07-28 |
| 7058713 | Method to assess the quality of a voice communication over packet networks | Richard J B Reynolds, Philip Gray, Antony Rix | 2006-06-06 |
| 7050924 | Test signalling | Antony Rix, Philip Gray, Richard J B Reynolds | 2006-05-23 |
| 7015947 | Measurement of performance of communications systems | — | 2006-03-21 |
| 6718296 | Measurement of signal quality | Richard J B Reynolds, Antony Rix, Gray Philip, Eleanor J Beamond | 2004-04-06 |
| 6694033 | Reproduction of spatialized audio | Andrew RIMELL | 2004-02-17 |
| 6512538 | Signal processing | — | 2003-01-28 |
| 6389111 | Measurement of signal quality | Philip J Sheppard, Richard J B Reynolds, Antony Rix | 2002-05-14 |
| 6304634 | Testing telecommunications equipment | Richard J B Reynolds, Antony Rix | 2001-10-16 |
| 6119083 | Training process for the classification of a perceptual signal | Philip Gray | 2000-09-12 |
| 6044147 | Telecommunications system | — | 2000-03-28 |
| 6035270 | Trained artificial neural networks using an imperfect vocal tract model for assessment of speech signal quality | Philip J Sheppard, Philip Gray | 2000-03-07 |
| 5999900 | Reduced redundancy test signal similar to natural speech for supporting data manipulation functions in testing telecommunications equipment | — | 1999-12-07 |
| 5940792 | Nonintrusive testing of telecommunication speech by determining deviations from invariant characteristics or relationships | — | 1999-08-17 |
| 5890104 | Method and apparatus for testing telecommunications equipment using a reduced redundancy test signal | — | 1999-03-30 |
| 5848384 | Analysis of audio quality using speech recognition and synthesis | Philip J. Sheppard | 1998-12-08 |
| 5799133 | Training process | Philip Gray | 1998-08-25 |
| 5794188 | Speech signal distortion measurement which varies as a function of the distribution of measured distortion over time and frequency | — | 1998-08-11 |