US3277461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precision miniature analogue-to-digital converter
Assignee: RTX Corp
•
Filing: 1961-10-27
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Granted: 1966-10-04
•
Expires: 1981-10-27
Abstract
No abstract record available.
Inventors
- 👤 Selvin Manuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:35
CPC Classifications
H; H03; H03M; H03M1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
AN ANALOGUE-TO-DIGITAL CONVERTER FOR PRODUCING A DIGITAL REPRESENTATION OF THE ANGULAR POSITION OF A SHAFT INCLUDING IN COMBINATION MEANS FOR GENERATING A SIGNAL REPRESENTING THE SINE FUNCTION OF SAID SHAFT ANGULAR POSITION, MEANS FOR GENERATING A SIGNAL REPRESENTING THE COSINE FUNCTION OF SAID SHAFT ANGULAR POSITION QUOTIENT PRODUCING, MEANS RESPONSIVE TO SAID SINE AND COSINE SIGNALS FOR PRODUCING A DIGITAL REPRESENTATION OF THE TANGENT FUNCTION OF SAID SHAFT ANGULAR POSITION, AND MEANS RESPONSIVE TO SAID TANGENT FUNCTION REPRESENTATION FOR PRODUCING THE DESIRED DIGITAL REPRESENTATION.
Claim 2
Dependent Claim
84 words
AN ANALOGUE-TO-DIGITAL CONVERTER FOR PRODUCING A DIGITAL REPRESENTATION OF THE ANGULAR POSITION OF A SHAFT INCLUDING IN COMBINATION MEANS FOR GENERATING A SIGNAL REPRESENTING THE SINE FUNCTION OF SAID SHAFT ANGULAR POSITION, MEANS FOR GENERATING A SIGNAL REPRESENTING THE COSINE FUNCTION OF SAID SHAFT ANGULAR POSITION QUOTIENT PRODUCING, MEANS RESPONSIVE TO SAID SINE AND COSINE SIGNALS FOR PRODUCING A DIGITAL REPRESENTATION OF THE TANGENT FUNCTION OF SAID SHAFT ANGULAR POSITION, AND MEANS RESPONSIVE TO SAID TANGENT FUNCTION REPRESENTATION FOR PRODUCING THE DESIRED DIGITAL REPRESENTATION.
References Cited (Backward Citations)
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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 |