Issued Patents All Time
Showing 25 most recent of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12183356 | Digital encapsulation of audio signals | John Robert Stuart | 2024-12-31 |
| 11996816 | Non linear filter with group delay at pre-response frequency for high res radio | John Robert Stuart | 2024-05-28 |
| 11710493 | Digital encapsulation of audio signals | John Robert Stuart | 2023-07-25 |
| 11388510 | Microphone arrays providing improved horizontal directivity | Christopher Julian Travis | 2022-07-12 |
| 11095304 | Discrete dither | Malcolm Law | 2021-08-17 |
| 10896683 | Lossless bandsplitting and bandjoining using allpass filters | Malcolm Law | 2021-01-19 |
| 10867614 | Digital encapsulation of audio signals | John Robert Stuart | 2020-12-15 |
| 10763828 | Non linear filter with group delay at pre-response frequency for high res audio | John Robert Stuart | 2020-09-01 |
| 10115410 | Digital encapsulation of audio signals | John Robert Stuart | 2018-10-30 |
| 9940940 | Transparent lossless audio watermarking | Malcolm Law | 2018-04-10 |
| 9870777 | Lossless embedded additional data | Malcolm Law | 2018-01-16 |
| 9548055 | Doubly compatible lossless audio bandwidth extension | Malcolm Law, John Robert Stuart | 2017-01-17 |
| 9106241 | Prediction of signals | Malcolm Law | 2015-08-11 |
| 8533571 | Lossy coding of signals | Malcolm Law | 2013-09-10 |
| 8406436 | Microphone array | Malcolm Law, Chris Travis | 2013-03-26 |
| 7812666 | Low delay corrector | Daniel L. W. Chieng, Michael A. Kost, Jack B. Andersen, Larry E. Hand, Wilson E. Taylor | 2010-10-12 |
| 7756592 | Enhanced feedback for plant control | — | 2010-07-13 |
| 7728658 | Low-noise, low-distortion digital PWM amplifier | Jack B. Andersen, Michael A. Kost, Daniel L. W. Chieng, Larry E. Hand, Wilson E. Taylor | 2010-06-01 |
| 7649410 | Systems and methods for improving performance in a digital amplifier by adding an ultrasonic signal to an input audio signal | Jack B. Andersen | 2010-01-19 |
| 7576606 | Digital PWM amplifier having a low delay corrector | Jack B. Andersen, Michael A. Kost, Daniel L. W. Chieng, Larry E. Hand, Wilson E. Taylor | 2009-08-18 |
| 7518444 | PWM feedback/feed-forward protection | Jack B. Andersen, Daniel L. W. Chieng, Michael A. Kost | 2009-04-14 |
| 7286009 | Digital PWM amplifier with simulation-based feedback | Jack B. Andersen, Michael A. Kost, Daniel L. W. Chieng, Larry E. Hand, Wilson E. Taylor | 2007-10-23 |
| 7193538 | Matrix improvements to lossless encoding and decoding | Malcolm Law, John Robert Stuart | 2007-03-20 |
| 6891482 | Lossless coding method for waveform data | Michael A. Gerzon | 2005-05-10 |
| 6784812 | Lossless coding method for waveform data | Michael A. Gerzon | 2004-08-31 |