Patent US3255446A successfully refreshed from Google Patents.
US3255446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compensated analogue to digital converter
Assignee: RTX Corp
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Filing: 1961-04-04
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Granted: 1966-06-07
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Expires: 1981-04-04
Abstract
No abstract record available.
Inventors
- 👤 Claude L Emmerich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:21
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A SYSTEM FOR CONVERTING AN ANALOGUE INPUT SIGNAL TO A DIGITAL OUTPUT SIGNAL INCLUDING IN COMBINATION MEANS INCLUDING AN INPUT MEMBER FOR PRODUCING A DIGITAL REPRESENTATION OF THE DISPLACEMENT OF SAID MEMBER, MEANS COMPRISING A SERVOSYSTEM FOR DRIVING SAID MEMBER, SAID SERVOSYSTEM HAVING ERROR SIGNAL GENERATING MEANS, SAID ERROR SIGNAL GENERATING MEANS BEING RESPONSIVE TO AN ANALOGUE INPUT SIGNAL TO PRODUCE SIGNAL REPRESENTING THE POSITIONAL ERROR OF SAID INPUT MEMBER, MEANS FOR CONVERTING SAID POSITIONAL ERROR SIGNAL TO A DIGITAL REPRESENTATION OF SAID POSITIONAL ERROR SIGNAL AND MEANS FOR COMBINING SAID DIGITAL REPRESENTATIONS TO PRODUCE THE DESIRED DIGITAL OUTPUT SIGNAL.
Claim 2
Independent Claim
100 words
A SYSTEM FOR CONVERTING AN ANALOGUE INPUT SIGNAL TO A DIGITAL OUTPUT SIGNAL INCLUDING IN COMBINATION MEANS INCLUDING AN INPUT MEMBER FOR PRODUCING A DIGITAL REPRESENTATION OF THE DISPLACEMENT OF SAID MEMBER, MEANS COMPRISING A SERVOSYSTEM FOR DRIVING SAID MEMBER, SAID SERVOSYSTEM HAVING ERROR SIGNAL GENERATING MEANS, SAID ERROR SIGNAL GENERATING MEANS BEING RESPONSIVE TO AN ANALOGUE INPUT SIGNAL TO PRODUCE SIGNAL REPRESENTING THE POSITIONAL ERROR OF SAID INPUT MEMBER, MEANS FOR CONVERTING SAID POSITIONAL ERROR SIGNAL TO A DIGITAL REPRESENTATION OF SAID POSITIONAL ERROR SIGNAL AND MEANS FOR COMBINING SAID DIGITAL REPRESENTATIONS TO PRODUCE THE DESIRED DIGITAL OUTPUT SIGNAL.
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) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |