US3277290A
Expired / Lapsed
US
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Methods and apparatus for polar to rectangular transformation
Assignee: YUBA CONS IND Inc
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Filing: 1962-12-10
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Granted: 1966-10-04
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Expires: 1982-12-10
Abstract
No abstract record available.
Inventors
- 👤 Hugo M Martinez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:08
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/16; G06G7/161; G06G7/20; G06G7/22; G06G7/24; G06G7/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
121 words
AN APPARATUS FOR GENERATING THE PRODUCT OF A FIRST INDEPENDENT VARIABLE BY THE SINE OF A SECOND INDEPENDENT VARIABLE COMPRISING A COMPARATOR; MEANS FOR SUPPLYING TO SAID COMPARATOR AN INPUT WHOSE ABSOLUTE VALUE REPRESENTS THE ABSOLUTE VALUE OF SAID SECOND INDEPENDENT VARIABLE; MEANS FOR SUPPLYING TO SAID COMPARATOR A PERIODIC TIME REPRESENTATION OF THE ARC SINE FUNCTION FOR COMPARISON WITH THE VALUE OF SAID SECOND INDEPENDENT VARIABLE AN AUXILIARY FUNCTION GENERATOR CONTROLLED BY SAID COMPARATOR FOR GENERATING AN AUXILIRY FUNCTION HAVING ABLY TWO VALUES, ONE OF SAID VALUES BEING THE VALUE OF SAID FIRST INDEPENDENT VARIABLE AND THE SECOND OF SAID VALUES BEING THE NEGATIVE OF SAID FIRST INDEPEDENT VARIABLE; AND MEANS FOR AVERAGING THE OUTPUT OF SAID AUXILIARY FUNCTION GENERATOR.
References Cited (Backward Citations)
US3025000A
Cited
US2936951A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |