Patent US3408650A successfully refreshed from Google Patents.
US3408650A
Expired / Lapsed
US
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Pulse compression radar
Assignee: Unisys Corp
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Filing: 1960-06-22
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Granted: 1968-10-29
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Expires: 1980-06-22
Abstract
No abstract record available.
Inventors
- 👤 Charles E Cook
- 👤 Arnold M Fine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:27
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/10; G01S13/26; G01S13/28; G01S13/282; G01C; G01C19/00; G01C19/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A SYSTEM FOR TRANSMITTING AND RECEIVING ELECTROMAGNETIC ENERGY, SAID SYSTEM COMPRISING IN COMBINATION MEANS FOR GENERATING A PULSED SIGNAL WHICH IS PROGRESSIVELY SWEPT IN FREQUENCY BETWEEN TWO FREQUENCY VALUES, FIRST SIGNAL MIXING MEANS, MEANS FOR APPLYING SAID PULSED SIGNAL TO SAID FIRST MIXING MEANS, SIGNAL TRANSMITTING MEANS CONNECTED TO THE OUTPUT OF SAID FIRST MIXING MEANS, SIGNAL RECEIVING MEANS, SECOND SIGNAL MIXING MEANS CONNECTED TO THE OUTPUT OF SAID RECEIVING MEANS, MEANS COUPLED TO THE OUTPUT OF SAID SECOND MIXING MEANS FOR PROGRESSIVELY DELAYING THE DIFFERENT FREQUENCY COMPONENTS OF THE SIGNAL AT THE OUTPUT OF SAID SECOND MIXING MEANS IN ACCORDANCE WITH THE FREQUENCY VALUES OF SAID COMPONENTS, A SOURCE OF FIRST SIGNALS, A SOURCE OF SECOND SIGNALS, AND MEANS FOR APPLYING SAID FIRST AND SECOND SIGNALS IN ALTERNATION TO EACH OF SAID FIRST AND SECOND MIXING MEANS.
Claim 2
Independent Claim
138 words
A SYSTEM FOR TRANSMITTING AND RECEIVING ELECTROMAGNETIC ENERGY, SAID SYSTEM COMPRISING IN COMBINATION MEANS FOR GENERATING A PULSED SIGNAL WHICH IS PROGRESSIVELY SWEPT IN FREQUENCY BETWEEN TWO FREQUENCY VALUES, FIRST SIGNAL MIXING MEANS, MEANS FOR APPLYING SAID PULSED SIGNAL TO SAID FIRST MIXING MEANS, SIGNAL TRANSMITTING MEANS CONNECTED TO THE OUTPUT OF SAID FIRST MIXING MEANS, SIGNAL RECEIVING MEANS, SECOND SIGNAL MIXING MEANS CONNECTED TO THE OUTPUT OF SAID RECEIVING MEANS, MEANS COUPLED TO THE OUTPUT OF SAID SECOND MIXING MEANS FOR PROGRESSIVELY DELAYING THE DIFFERENT FREQUENCY COMPONENTS OF THE SIGNAL AT THE OUTPUT OF SAID SECOND MIXING MEANS IN ACCORDANCE WITH THE FREQUENCY VALUES OF SAID COMPONENTS, A SOURCE OF FIRST SIGNALS, A SOURCE OF SECOND SIGNALS, AND MEANS FOR APPLYING SAID FIRST AND SECOND SIGNALS IN ALTERNATION TO EACH OF SAID FIRST AND SECOND MIXING MEANS.
References Cited (Backward Citations)
US2624876A
Cited
US2823375A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |