US3334346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-steering antenna array system
Assignee: AT&T Inc
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Filing: 1964-01-09
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Granted: 1967-08-01
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Expires: 1984-01-09
Abstract
No abstract record available.
Inventors
- 👤 Arthur B Crawford
- 👤 Le Roy C Tillotson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:14
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/26; H01Q3/30; H01Q3/34; H01Q3/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A COMMUNICTION SYSTEM, A FIRST STATION HAVING AN ARRAY OF ANTENNA ELEMENTS, A SECOND STATION RADIATING TWO PILOT SIGNALS TOWARD SAID ARRAY, AND APPARATUS INDIVIDUAL TO EACH ANTENNA ELEMENT COMPRISING MEANS FOR MIXING THE TWO PILOT SIGNALS RECEIVED BY SAID ELEMENT, MEANS INCLUDING A FREQUENCY MULTIPLIER FOR DERIVING FROM THE DIFFERENCE-FREQUENCY COMPONENT RESULTING FROM SAID MIXING MEANS A SIGNAL FOR TRANSMISSION, SAID SIGNAL BEING OF SUCH PHAST THAT UPON RADIATION FROM SAID ANTENNA ELEMENT IT CONSTRUCTIVELY COMBINES WITH SIGNALS FOR TRANSMISSION ASSOCIATED WITH THE OTHER ANTENNA ELEMENTS IN THE DIRECTION TO SAID SECOND STATION, AND MEANS FOR APPLYING SAID SIGNAL FOR TRANSMISSION TO SAID ANTENNA ELEMENT FOR RADIATION THEREFROM.
Claim 2
Dependent Claim
110 words
IN A COMMUNICTION SYSTEM, A FIRST STATION HAVING AN ARRAY OF ANTENNA ELEMENTS, A SECOND STATION RADIATING TWO PILOT SIGNALS TOWARD SAID ARRAY, AND APPARATUS INDIVIDUAL TO EACH ANTENNA ELEMENT COMPRISING MEANS FOR MIXING THE TWO PILOT SIGNALS RECEIVED BY SAID ELEMENT, MEANS INCLUDING A FREQUENCY MULTIPLIER FOR DERIVING FROM THE DIFFERENCE-FREQUENCY COMPONENT RESULTING FROM SAID MIXING MEANS A SIGNAL FOR TRANSMISSION, SAID SIGNAL BEING OF SUCH PHAST THAT UPON RADIATION FROM SAID ANTENNA ELEMENT IT CONSTRUCTIVELY COMBINES WITH SIGNALS FOR TRANSMISSION ASSOCIATED WITH THE OTHER ANTENNA ELEMENTS IN THE DIRECTION TO SAID SECOND STATION, AND MEANS FOR APPLYING SAID SIGNAL FOR TRANSMISSION TO SAID ANTENNA ELEMENT FOR RADIATION THEREFROM.
References Cited (Backward Citations)
US3166749A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |