Patent US3199106A successfully refreshed from Google Patents.
US3199106A
Expired / Lapsed
US
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Time distortion tolerant signalling system
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1962-04-02
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Granted: 1965-08-03
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Expires: 1982-04-02
Abstract
No abstract record available.
Inventors
- 👤 Philip R Karr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:22
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/10; G01S13/26; G01S13/28; G01S13/282
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
104 words
AN ECHO RANGING SYSTEM COMPRISING MEANS FOR GENERATING AND TRANSMITTING PULSES OF FREQUENCY MODULATED CARRIER WAVE ENERGY, WHICH PULSES ARE CHARACTERIZED IN THAT THE INSTANTANEOUS PHASE OF THE FREQUENCY MODULATED WAVE VARIES BOTH LOGARITHMICALLY AND NONLOGARITHMICALLY WITH TIME AS COMPARED TO THE INSTANTANEOUS PHASE OF A CONSTANT FREQUENCY REFERENCE WAVE, MEANS FOR RECEIVING MOVING-OBJECT-RETURNED ECHO PULSES, AND CORRELATION MEANS, RESPONSIVE TO SAID ECHO PULSES AND OPERATIVE TO COMPARE THE SAME WITH A TIME DELAYED, SUBSTANTIAL REPLICA OF AT LEAST ONE TRANSMITTED PULSE, FOR PRODUCING OUTPUT SIGNALS ONLY WHEN THE VELOCITY OF THE OBJECT RETURNING SAID ECHO PULSES IS WITHIN A PRESELECTED RANGE OF VELOCITIES.
Claim 2
Dependent Claim
104 words
AN ECHO RANGING SYSTEM COMPRISING MEANS FOR GENERATING AND TRANSMITTING PULSES OF FREQUENCY MODULATED CARRIER WAVE ENERGY, WHICH PULSES ARE CHARACTERIZED IN THAT THE INSTANTANEOUS PHASE OF THE FREQUENCY MODULATED WAVE VARIES BOTH LOGARITHMICALLY AND NONLOGARITHMICALLY WITH TIME AS COMPARED TO THE INSTANTANEOUS PHASE OF A CONSTANT FREQUENCY REFERENCE WAVE, MEANS FOR RECEIVING MOVING-OBJECT-RETURNED ECHO PULSES, AND CORRELATION MEANS, RESPONSIVE TO SAID ECHO PULSES AND OPERATIVE TO COMPARE THE SAME WITH A TIME DELAYED, SUBSTANTIAL REPLICA OF AT LEAST ONE TRANSMITTED PULSE, FOR PRODUCING OUTPUT SIGNALS ONLY WHEN THE VELOCITY OF THE OBJECT RETURNING SAID ECHO PULSES IS WITHIN A PRESELECTED RANGE OF VELOCITIES.
Claim 3
Dependent Claim
45 words
IN AN ECHO RANGING SYSTEM FOR DETECTION OF OBJECTS HAVING VELOCITIES WITHIN A PRESELECTED RANGE OF VELOCITIES, TRANSMITTER MEANS FOR TRANSMITTING PULSES OF OSCILLATORY WAVE ENERGY, WHICH PULSES ARE CHARACTERIZED IN THAT DURING EACH PULSE THE TRANSMITTED WAVE AMPLITUDE VARIES AS THE FUNCTION OF TIME
Claim 4
Dependent Claim
45 words
IN AN ECHO RANGING SYSTEM FOR DETECTION OF OBJECTS HAVING VELOCITIES WITHIN A PRESELECTED RANGE OF VELOCITIES, TRANSMITTER MEANS FOR TRANSMITTING PULSES OF OSCILLATORY WAVE ENERGY, WHICH PULSES ARE CHARACTERIZED IN THAT DURING EACH PULSE THE TRANSMITTED WAVE AMPLITUDE VARIES AS THE FUNCTION OF TIME
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |