Range measuring system
Abstract
Abstract THIS INVENTION RELATES TO A RANGE MEASURING SYSTEM OF THE KIND IN WHICH RANGE IS FOUND BY A COMPUTATION BASED UPON THE DIFFERENCE IN TIME OF ARRIVAL AT A MEASURING POSITION OF TWO SIGNALS INITIATED AS AN INCIDENT TO OCCURENCE OF A DISTANT EVENT, THE PROPAGATION VELOCITIES OF WHICH ARE DIFFERENT AND ARE KNOWN. THE EMBODIMENT ILLUSTRATED AND DESCRIBED SENSES INFRARED RADIALTION AND ACOUSTIC PRESSURE WAVES WHICH SERVE AS SIGNATURES OF THE SAME EVENT, MEASURES THE TIME DIFFERENCE OF THEIR ARRIVAL AT THE MEASURING POINT, AND TRANSFORMS THAT TIME INFORMATION INTO DISTANCE INFORMATION. THE SYSTEM ALSO INCORPORATES STRUCTURES FOR INDICATING THE DIRECTION IN WHICH THE EVENT OCCURRED.
Inventors
- 👤 Robert D Leyden
- 👤 Donald L Knippel
Bibliographic Details
Claims Analysis
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |