US3333092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alternating current integrators
Assignee: Unisys Corp
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Filing: 1964-07-14
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Granted: 1967-07-25
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Expires: 1984-07-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Arthur A Hauser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:45
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/18; G06G7/184; G06G7/186; G06G7/32; G06G7/38
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
146 words
A DEVICE FOR INTEGRATING A MODULATION SIGNAL EXISTING ON A PAIR OF CARRIER WAVES IN TIME QUADRATURE WITH EACH OTHER COMPRISING FIRST AND SECOND SUMMING INTERGRATORS; FIRST AND SECOND AMPLIFYING MEANS EACH HAVING A AGAIN NUMERICALLY EQUAL TO THE ANGULAR FREQUENCY OF THE CARRIER WAVES TO BE USED, SAID FIRST AMPLIFYING MEANS BEING FURTHER ARRANGED TO INVERT THE PHASE OF THE SIGNALS APPLIED TO ITS INPUT; MEANS TO COUPLE THE OUTPUT OF THE FIRST INTEGRATOR TO THE INPUT OF THE FIRST AMPLIFYING MEANS; MEANS TO COUPLE THE OUTPUT OF THE SECOND INTEGRATOR TO THE INPUT OF THE SECOND AMPLIFYING MEANS; MEANS TO APPLY THE INSTANTANEOUS SUM OF THE FIRST OF SAID CARRIER WAVES AND THE OUTPUT OF THE SECOND AMPLIFYING MEANS TO THE INPUT OF THE FIRST INTEGRATOR; MEANS TO APPLY THE INSTANTANEOUS SUM OF THE SECOND OF SAID CARRIER WAVES AND THE OUTPUT OF THE
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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |