| 11455265 |
Data bus driver with electrical energy dump |
Nathan A. Johanningsmeier, James B. Reedy |
2022-09-27 |
| 11166106 |
High output impedance audio amplifier for noise rejection |
Michael B. Nussbaum, Todd K. Moyer |
2021-11-02 |
| 10963410 |
Data bus driver with electrical energy dump |
Nathan A. Johanningsmeier, James B. Reedy |
2021-03-30 |
| 10917050 |
Amplifier power converter input current/power limit adjustment using amplifier load determinations |
Evan D Ragsdale, Kavitha Srinivasan |
2021-02-09 |
| 10911009 |
Current-source switching hybrid audio amplifier |
Michael B. Nussbaum, Todd K. Moyer |
2021-02-02 |
| 10674280 |
High output impedance audio amplifier for noise rejection |
Michael B. Nussbaum, Todd K. Moyer |
2020-06-02 |
| 10666209 |
Increased output impedance switching amplifier and low-side recycle mode |
Troy Murphy, Nathan A. Johanningsmeier |
2020-05-26 |
| 10283989 |
Electrical power converter and detachable energy storage reservoir |
Evan D Ragsdale, Nathan A. Johanningsmeier |
2019-05-07 |
| 10254134 |
Interference-insensitive capacitive displacement sensing |
Nathan A. Johanningsmeier |
2019-04-09 |
| 10212500 |
Digital transducer circuit |
Girault W. Jones, Nathan A. Johanningsmeier |
2019-02-19 |
| 10149078 |
Capacitive sensing of a moving-coil structure with an inset plate |
Anthony P. Grazian, Scott P. Porter, Christopher Wilk, Hongdan Tao |
2018-12-04 |
| 9967664 |
Sensor assembly for measuring diaphragm displacement and temperature in a micro speaker |
Yang Boon Quek, Scott P. Porter, Hongdan Tao, Suzanne C. Brown, Christopher Wilk +1 more |
2018-05-08 |
| 9854355 |
Grounding circuit for alternate audio plug designs |
Joseph C. Curcio, David C. Breece, III, Cara S. Yang, Nathan A. Johanningsmeier, Kavitha Srinivasan |
2017-12-26 |
| 9847713 |
Charge pump-based split-rail supply generation |
David C. Breece, III, Nathan A. Johanningsmeier |
2017-12-19 |
| 9826308 |
Capacitive displacement sensing circuit with a guard voltage source |
Scott P. Porter, Ruchir M. Dave |
2017-11-21 |
| 9793658 |
Reuse of plug detection contacts to reduce crosstalk |
Joseph C. Curcio, Nathan A. Johanningsmeier |
2017-10-17 |
| 9729964 |
Audio apparatus having dynamic ground break resistance |
Girault W. Jones, Nathan A. Johanningsmeier |
2017-08-08 |
| 9681228 |
Capacitive position sensing for transducers |
Christopher Wilk, Alexander V. Salvatti, Thomas M. Jensen, Scott P. Porter, Ruchir M. Dave +1 more |
2017-06-13 |
| 9332343 |
Multi-channel audio system having a shared current sense element for estimating individual speaker impedances using test signals |
Nathan A. Johanningsmeier |
2016-05-03 |
| 9247345 |
Multi-channel audio system having a shared current sense element for estimating individual speaker impedances |
Nathan A. Johanningsmeier |
2016-01-26 |
| 9231543 |
Audio power amplification with reduced input power supply crest factor |
Joseph Curcio, Nathan A. Johanningsmeier, Casey Hardy |
2016-01-05 |
| 8921158 |
Semiconductor device having mode of operation defined by inner bump assembly connection |
Kymberly T. Christman, Anand Chamakura |
2014-12-30 |
| 8575755 |
Semiconductor device having mode of operation defined by inner bump assembly connection |
Kymberly T. Christman, Anand Chamakura |
2013-11-05 |
| 7126596 |
Rail-to-rail amplifier for use in line-inversion LCD grayscale reference generator |
— |
2006-10-24 |
| 6750839 |
Grayscale reference generator |
— |
2004-06-15 |
