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L & H Company, Inc. Patents |
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Assignee: L & H Company, Inc.
Address: Oak Brook, IL
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5926113 |
Automatic determination of traffic signal preemption using differential GPS |
July 20, 1999 |
| A traffic signal preemption system, and a related method for its use, using differential global positioning system (GPS) measurements for accurate monitoring of the position, speed and direction of an emergency or service vehicle approaching a controlled intersection. The preemption syst |
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