| 5850192 |
Apparatus for sensing vehicles |
Frederick J. Turk, Claude E. Cybulski |
1998-12-15 |
| 5734338 |
Vehicle detector with automatic sensitivity adjustment |
Martin C. Henderson |
1998-03-31 |
| 5508698 |
Vehicle detector with environmental adaptation |
— |
1996-04-16 |
| 5361064 |
Vehicle detector with power main noise compensation |
Steven M. Hamer |
1994-11-01 |
| 5281965 |
Vehicle detector measurement frame segmentation |
Samuel Louis-Marie Bernard |
1994-01-25 |
| 5278555 |
Single inductive sensor vehicle detection and speed measurement |
— |
1994-01-11 |
| 5153525 |
Vehicle detector with series resonant oscillator drive |
Steven M. Hamer |
1992-10-06 |
| 4994714 |
Automatic alteration of the operation of a radiant energy transmitter |
Karl P. Schaller |
1991-02-19 |
| 4972185 |
Radiant energy signal transmitter |
James L. Stopa |
1990-11-20 |
| 4697170 |
Method for minimizing false alarms and electronic noise in electronic article surveillance systems. |
— |
1987-09-29 |
| 4581524 |
Flexible ferromagnetic marker for the detection of objects having markers secured thereto |
Samuel Montean |
1986-04-08 |
| 4277693 |
Apparatus for providing a time controlled output |
— |
1981-07-07 |
