Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9274247 | High resolution density measurement profiler using silicon photomultiplier sensors | John A. Hewitson | 2016-03-01 |
| 8358082 | Striking and open lamp regulation for CCFL controller | David K. Lacombe | 2013-01-22 |
| 7868603 | Method and apparatus to compensate for supply voltage variations in a PWM-based voltage regulator | David K. Lacombe, Chii-Fa Chiou | 2011-01-11 |
| 7569998 | Striking and open lamp regulation for CCFL controller | David K. Lacombe | 2009-08-04 |
| 7411360 | Apparatus and method for striking a fluorescent lamp | — | 2008-08-12 |
| 7391172 | Optical and temperature feedbacks to control display brightness | Bruce R. Ferguson, Roger Holliday | 2008-06-24 |
| 7321200 | Square wave drive system | — | 2008-01-22 |
| 7279852 | Apparatus and method for striking a fluorescent lamp | — | 2007-10-09 |
| 7183727 | Optical and temperature feedbacks to control display brightness | Bruce R. Ferguson, Roger Holliday | 2007-02-27 |
| 6979959 | Apparatus and method for striking a fluorescent lamp | — | 2005-12-27 |
| 6969958 | Square wave drive system | — | 2005-11-29 |
| 6897709 | Charge pump regulator with load current control | — | 2005-05-24 |
| 6876157 | Lamp inverter with pre-regulator | — | 2005-04-05 |
| 6812776 | Multiple output charge pump | — | 2004-11-02 |
| 6636104 | Multiple output charge pump | — | 2003-10-21 |
| 6556067 | Charge pump regulator with load current control | — | 2003-04-29 |
| 6522558 | Single mode buck/boost regulating charge pump | — | 2003-02-18 |
| 6198234 | Dimmable backlight system | — | 2001-03-06 |
| 5930121 | Direct drive backlight system | — | 1999-07-27 |
| 5923129 | Apparatus and method for starting a fluorescent lamp | — | 1999-07-13 |
| RE31318 | Automatic modular memory address allocation system | Phillip A. Kaufman, Kenneth Gorman, Roy Blacksher | 1983-07-19 |