Patent US3345631A successfully refreshed from Google Patents.
US3345631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phased array radar antenna scan control
Assignee: Texas Instruments Inc
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Filing: 1964-09-18
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Granted: 1967-10-03
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Expires: 1984-09-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Leo A Chamberlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:47
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/26; H01Q3/30; H01Q3/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
A SYSTEM FOR SEQUENTIALLY GENERATING A PLURALITY OF SUITES OF STAIR-STEP REFERENCE VOLTAGES WHICH COMPRISES: (A) AN ANALOG VOLTAGE SOURCE OF A LEVEL GREATER THAN THE MAXIMUM VOLTAGE IN EACH SAID SUITE, (B) A COUNTER-DRIVEN DIGITAL-TO-ANALOG CONVERTER FOR GENERATING MONOTONIC OUTPUT VOLTAGE, (C) A PLURALITY OF SAMPLE-AND-HOLD CIRCUITS CONNECTED TO THE OUTPUT OF SAID CONVERTER, (D) A COUNTER DRIVEN IN SYNCHRONISM WITH SAID CONVERTER, (E) MEANS FOR PERIODICALLY RESETTING SAID CONVERTER WHEN SAID MONOTONIC VOLTAGE EXCEEDS SAID MAXIMUM VOLTAGE, AND (F) MEANS RESPONSIVE TO THE OUTPUT OF SAID COUNTER FOR PERIODICALLY ACTUATING SAID SAMPLE-AND-HOLD CIRCUITS FOR SAMPLING SAID OUTPUT VOLTAGE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |