US3177362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared tracker
Assignee: Lockheed Martin Corp
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Filing: 1961-10-02
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Granted: 1965-04-06
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Expires: 1981-10-02
Abstract
No abstract record available.
Inventors
- 👤 Edgar W Kutzscher
- 👤 Amara Dominic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:30
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/78; G01S3/782; G01S3/787; G01S3/785; G01S3/786
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
TRACKER APPARATUS RESPONSIVE TO AN INFRARED EMISSIVE TARGET COMPRISING, OPTICAL MEANS FOR COLLECTING AND FOCUSING ENERGY FROM SAID TARGET ONTO AN IMAGE PLANE, AN INFRARED RESPONSIVE DETECTOR CELL LOCATED ADJACENT SAID IMAGE PLANE IN COAXIAL ALIGNMENT WITH THE OPTICAL AXIS OF SAID OPTICAL MEANS, SCANNING MEANS LOCATED AT SAID IMAGE PLANE FOR MODULATING THE ENERGY FALLING UPON SAID CELL TO PROVIDE A FREQUENCY MODULATED SIGNAL WHENEVER THE IMAGE OF SAID TARGET IS DISPLACED FROM SAID OPTICAL AXIS, THE PHASE OF SAID FREQUENCY MODULATED SIGNAL CORRESPONDING TO THE DIRECTION OF DISPLACEMENT BETWEEN SAID TARGET''S LINE OF SIGHT AND SAID OPTICAL AXIS, THE AMPLITUDE OF SAID FREQUENCY MODULATED SIGNAL CORRESPONDING TO THE MAGNITUDE OF THE ANGULAR DISPLACEMENT BETWEEN SAID TARGET LINE OF SIGHT AND SAID OPTICAL AXIS, AND ELECTRONIC CIRCUIT MEANS FOR CONVERTING SAID FREQUENCY MODULATED SIGNAL TO AZIMUTH AND ELEVATION DIRECT-CURRENT ERROR SIGNALS, THE POLARITY AND MAGNITUDE OF SAID ERROR SIGNALS CORRESPONDING TO THE DIRECTION AND MAGNITUDE, RESPECTIVELY, OF THE DISPLACEMENT BETWEEN SAID TARGET''S LINE OF SIGHT AND SAID OPTICAL AXIS.
Claim 2
Dependent Claim
170 words
TRACKER APPARATUS RESPONSIVE TO AN INFRARED EMISSIVE TARGET COMPRISING, OPTICAL MEANS FOR COLLECTING AND FOCUSING ENERGY FROM SAID TARGET ONTO AN IMAGE PLANE, AN INFRARED RESPONSIVE DETECTOR CELL LOCATED ADJACENT SAID IMAGE PLANE IN COAXIAL ALIGNMENT WITH THE OPTICAL AXIS OF SAID OPTICAL MEANS, SCANNING MEANS LOCATED AT SAID IMAGE PLANE FOR MODULATING THE ENERGY FALLING UPON SAID CELL TO PROVIDE A FREQUENCY MODULATED SIGNAL WHENEVER THE IMAGE OF SAID TARGET IS DISPLACED FROM SAID OPTICAL AXIS, THE PHASE OF SAID FREQUENCY MODULATED SIGNAL CORRESPONDING TO THE DIRECTION OF DISPLACEMENT BETWEEN SAID TARGET''S LINE OF SIGHT AND SAID OPTICAL AXIS, THE AMPLITUDE OF SAID FREQUENCY MODULATED SIGNAL CORRESPONDING TO THE MAGNITUDE OF THE ANGULAR DISPLACEMENT BETWEEN SAID TARGET LINE OF SIGHT AND SAID OPTICAL AXIS, AND ELECTRONIC CIRCUIT MEANS FOR CONVERTING SAID FREQUENCY MODULATED SIGNAL TO AZIMUTH AND ELEVATION DIRECT-CURRENT ERROR SIGNALS, THE POLARITY AND MAGNITUDE OF SAID ERROR SIGNALS CORRESPONDING TO THE DIRECTION AND MAGNITUDE, RESPECTIVELY, OF THE DISPLACEMENT BETWEEN SAID TARGET''S LINE OF SIGHT AND SAID OPTICAL AXIS.
References Cited (Backward Citations)
US3012148A
Cited
US2930894A
Cited
US3076095A
Cited
US3106642A
Cited
US2961545A
Cited
US3007053A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |