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System for, and method of, monitoring the movement of mobile items |
Robert R. Goehring, Kai Loon Ng |
2013-01-08 |
| 7978076 |
System for, and method of, monitoring the movement of mobile items |
Robert R. Goehring, Kai Loon Ng |
2011-07-12 |
| 7528723 |
System for, and method of, monitoring the movement of mobile items |
Robert R. Goehring, Kai Loon Ng |
2009-05-05 |
| 7327258 |
System for, and method of, monitoring the movements of mobile items |
Robert R. Goehring, Kai Loon Ng |
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| 4646031 |
Narrowband phase-lock loop circuit with automatic convergence |
Brian Murray |
1987-02-24 |
| 4642576 |
Method of locking a master oscillator in a narrowband phase-lock loop to a pilot tone |
Brian Murray |
1987-02-10 |