Inventor
QUINN PATRICK A
US25 patents
⚠️ This page may combine multiple inventors who share the name “QUINN PATRICK A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
(unassigned)
9 patentsUS5896017AApr 20, 1999
Model train locomotive with doppler shifting of sound effects
119 citations99
US5633985AMay 27, 1997
Method of generating continuous non-looped sound effects
248 citations99
US6230140B1May 8, 2001
Continuous sound by concatenating selected digital sound segments
57 citations96
US5832431ANov 3, 1998
Non-looped continuous sound by random sequencing of digital sound records
59 citations96
US5448142ASep 5, 1995
Signaling techniques for DC track powered model railroads
80 citations96
US5940005AAug 17, 1999
Method and apparatus for storing and utilizing a unique power down state in a model railroad system
33 citations92
US5773939AJun 30, 1998
Command control for model railroading using AC track power signals for encoding pseudo-digital signals
37 citations92
US5590856AJan 7, 1997
Complex switch turn-out arrangements using proximity selection
31 citations92
US5394068AFeb 28, 1995
Automatic initialization in a model railroad motor control system
32 citations92
TEKTRONIX INC
6 patentsUS4146844AMar 27, 1979
Feed-forward amplifier
TEKTRONIX INC73 citations96
US5247468ASep 21, 1993
System for calculating and displaying user-defined output parameters describing behavior of subcircuits of a simulated circuit
TEKTRONIX INC41 citations87
US4692712ASep 8, 1987
Differential impedance neutralization circuit
TEKTRONIX INC16 citations74
US4731588AMar 15, 1988
Gain selectable amplifier with resonance compensation
TEKTRONIX INC11 citations73
US4725790AFeb 16, 1988
Broadband DC level shift circuit with feedback
TEKTRONIX INC10 citations73
US4767945AAug 30, 1988
Analog signal multiplexer
TEKTRONIX INC6 citations63