Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8305200 | Reactive networks to reduce acoustic noise and ensure maximum efficiencies in driving piezoelectric elements in haptic applications | Mark J. Murphy, Alan Gillespie, Eoin Edward English, Dennis A. Dempsey | 2012-11-06 |
| 7555394 | Measuring circuit and a method for determining a characteristic of the impedance of a complex impedance element for facilitating characterization of the impedance thereof | James Caffrey, Colm Slattery, Albert C. O'Grady, Colin G. Lyden, Sean Ronald Smith | 2009-06-30 |
| 6985100 | Integrated circuit comprising a DAC with provision for setting the DAC to a clear condition, and a method for setting a DAC to a clear condition | Denis M. O'Connor, Dennis A. Dempsey | 2006-01-10 |
| 6924759 | Multi-channel integrated circuit comprising a plurality of DACs, and a method for monitoring the output of the DACs | John Wynne, Albert C. O'Grady | 2005-08-02 |
| 6885329 | Signal generation using DAC having selectively switched registers storing output values | Albert C. O'Grady, Tudor Vinereanu | 2005-04-26 |
| 6570517 | Digital to analog converting circuit | Patrick Kirby | 2003-05-27 |
| 6198313 | Infinite sample-and-hold circuit | Patrick F. M. Poucher, Patrick Kirby, Christopher A. Kenny | 2001-03-06 |
| 5706005 | D/A converter with improved means to prevent output signal instability | Michael G. Curtin | 1998-01-06 |