| 5830064 |
Apparatus and method for distinguishing events which collectively exceed chance expectations and thereby controlling an output |
G. Johnston Bradish, York H. Dobyns, Brenda J. Dunne, Robert Jahn, Roger Nelson +1 more |
1998-11-03 |
| 5602739 |
Vehicle tracking system incorporating traffic signal preemption |
Jeffrey D. Haagenstad, Ronald Allen Hagen, Edmund J. Ring, Kim K. Christopher, Theodore B. Keyes |
1997-02-11 |
| 5539398 |
GPS-based traffic control preemption system |
Timothy J. Hall, Mark Schwartz |
1996-07-23 |
| 5361064 |
Vehicle detector with power main noise compensation |
Earl B. Hoekman |
1994-11-01 |
| 5202683 |
Optical traffic preemption detector |
Thomas Lunn, David L. Wortman |
1993-04-13 |
| 5187476 |
Optical traffic preemption detector circuitry |
— |
1993-02-16 |
| 5172113 |
System and method for transmitting data in an optical traffic preemption system |
— |
1992-12-15 |
| 5153525 |
Vehicle detector with series resonant oscillator drive |
Earl B. Hoekman |
1992-10-06 |
