| Patent | Date |
|---|
Acoustic Layer In Media Device Providing Enhanced Audio Performance
App 20190182585 - Quinn; Patrick A. ; et al. | 2019-06-13 |
Acoustic Layer In Media Device Providing Enhanced Audio Performance
App 20170257699 - QUINN; PATRICK A. ; et al. | 2017-09-07 |
Pad-type device case providing enhanced audio functionality and output
Grant 9,204,211 - Proebstel , et al. December 1, 2 | 2015-12-01 |
Acoustic Layer In Media Device Providing Enhanced Audio Performance
App 20140219490 - Quinn; Patrick A. ; et al. | 2014-08-07 |
Pad-Type Device Case Providing Enhanced Audio Functionality and Output
App 20130156219 - Proebstel; Robert C. ; et al. | 2013-06-20 |
Bias voltage generation for capacitor-coupled level shifter with supply voltage tracking and compensation for input duty-cycle variation
Grant 8,228,111 - Quinn July 24, 2 | 2012-07-24 |
Calibrated feedback
Grant 8,207,788 - Lee , et al. June 26, 2 | 2012-06-26 |
Bias voltage generation for capacitor-coupled level shifter with supply voltage tracking and compensation for input duty-cycle variation
App 20090289685 - Quinn; Patrick A. | 2009-11-26 |
Calibrated feedback
App 20080272842 - Lee; Wai L. ; et al. | 2008-11-06 |
Capacitor-coupled level shifter with duty-cycle independence and supply referenced bias configuration
Grant 7,443,200 - Quinn , et al. October 28, 2 | 2008-10-28 |
Laser drive method and apparatus
Grant 7,433,377 - Quinn , et al. October 7, 2 | 2008-10-07 |
Capacitor-coupled level shifter with duty-cycle independence and supply referenced bias configuration
App 20070182616 - Quinn; Patrick A. ; et al. | 2007-08-09 |
Laser drive method and apparatus
App 20040233948 - Quinn, Patrick A. ; et al. | 2004-11-25 |
Continuous sound by concatenating selected digital sound segments
Grant 6,230,140 - Severson , et al. May 8, 2 | 2001-05-08 |
Model train locomotive with doppler shifting of sound effects
Grant 5,896,017 - Severson , et al. April 20, 1 | 1999-04-20 |
Command control for model railroading using AC track power signals for encoding pseudo-digital signals
Grant 5,773,939 - Severson , et al. June 30, 1 | 1998-06-30 |
Method of generating continuous non-looped sound effects
Grant 5,633,985 - Severson , et al. May 27, 1 | 1997-05-27 |
Complex switch turn-out arrangements using proximity selection
Grant 5,590,856 - Quinn , et al. January 7, 1 | 1997-01-07 |
Model railroad operation using proximity selection
Grant 5,492,290 - Quinn , et al. February 20, 1 | 1996-02-20 |
Signaling techniques for DC track powered model railroads
Grant 5,448,142 - Severson , et al. September 5, 1 | 1995-09-05 |
Automatic initialization in a model railroad motor control system
Grant 5,394,068 - Severson , et al. February 28, 1 | 1995-02-28 |
Model railroad cattle car sound effects
Grant 5,267,318 - Severson , et al. November 30, 1 | 1993-11-30 |
System for calculating and displaying user-defined output parameters describing behavior of subcircuits of a simulated circuit
Grant 5,247,468 - Henrichs , et al. September 21, 1 | 1993-09-21 |
Model railroad reversing motor control system
Grant 5,184,048 - Severson , et al. February 2, 1 | 1993-02-02 |
Analog signal multiplexer
Grant 4,767,945 - Quinn August 30, 1 | 1988-08-30 |
Gain selectable amplifier with resonance compensation
Grant 4,731,588 - Addis , et al. March 15, 1 | 1988-03-15 |
Broadband DC level shift circuit with feedback
Grant 4,725,790 - Addis , et al. February 16, 1 | 1988-02-16 |
Differential impedance neutralization circuit
Grant 4,692,712 - Quinn September 8, 1 | 1987-09-08 |
Feed-forward amplifier
Grant 4,146,844 - Quinn March 27, 1 | 1979-03-27 |
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