US3258698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modulation crossover selector
Assignee: —
•
Filing: —
•
Granted: 1966-06-28
•
Expires: 1983-06-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:35
CPC Classifications
H; H03; H03M; H03M1/00; G; G01; G01S; G01S1/00; G01S1/02; H03M1/06; H03M1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A MODULATION CROSSOVER SELECTOR CIRCUIT FOR SELECTING A CROSSOVER IN A DIGITAL ANGLE MEASURING SYSTEM WHERE THE VALUES OF ANGLES ARE INTEGRATED, MEANS PROVIDING FIRST AND SECOND CROSSOVER PULSE SIGNALS REPRESENTING, RESPECTIVELY, 0* AND 180* CROSSOVER POINTS, A SOURCE OF REFERENCE PULSE SIGNAL, MEANS TO DERIVE A DESIRED PULSE SIGNAL A PREDETERMINED TIME AFTER EACH SAID REFERENCE PULSE, AND MEANS RESPONSIVE TO SAID DESIRED PULSE SIGNAL AND THE ONE OF SAID FIRST AND SECOND CROSSOVER PULSE SIGNALS FIRST OCCURRING AFTER THE GENERATION OF SAID DESIRED SIGNAL TO GENERATE OUTPUT SIGNALS INDICATIVE OF THE SELECTED CROSSOVER.
Claim 2
Dependent Claim
95 words
A MODULATION CROSSOVER SELECTOR CIRCUIT FOR SELECTING A CROSSOVER IN A DIGITAL ANGLE MEASURING SYSTEM WHERE THE VALUES OF ANGLES ARE INTEGRATED, MEANS PROVIDING FIRST AND SECOND CROSSOVER PULSE SIGNALS REPRESENTING, RESPECTIVELY, 0* AND 180* CROSSOVER POINTS, A SOURCE OF REFERENCE PULSE SIGNAL, MEANS TO DERIVE A DESIRED PULSE SIGNAL A PREDETERMINED TIME AFTER EACH SAID REFERENCE PULSE, AND MEANS RESPONSIVE TO SAID DESIRED PULSE SIGNAL AND THE ONE OF SAID FIRST AND SECOND CROSSOVER PULSE SIGNALS FIRST OCCURRING AFTER THE GENERATION OF SAID DESIRED SIGNAL TO GENERATE OUTPUT SIGNALS INDICATIVE OF THE SELECTED CROSSOVER.
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) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |