US3098224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible analog to digital converter
Assignee: HOFFMAN AND EATON
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Filing: 1960-04-28
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Granted: 1963-07-16
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Expires: 1980-04-28
Abstract
No abstract record available.
Inventors
- 👤 Philip A Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:30
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/14; H03M1/22; H03M1/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A SIGNAL GENERATOR FOR ANALOG TO DIGITAL AND DIGITAL TO ANALOG CONVERTERS COMPRISING FIRST AND SECOND SIGNAL STORAGE MEANS, MEANS FOR STORING A REFERENCE SIGNAL ON SAID FIRST STORAGE MEANS, MEANS FOR PERIODICALLY COUPLING SAID FIRST AND SECOND STORAGE MEANS TOGETHER IN SIGNAL SHARING RELATIONSHIP WHEREBY SUCCESSIVE PORTIONS OF SAID REFERENCE SIGNAL ARE PERIODICALLY TRANSFERRED BETWEEN SAID FIRST STORAGE MEANS AND SAID SECOND STORAGE MEANS IN SUCCESSIVELY WEIGHTED QUANTITIES REPRESENTATIVE OF THE SUCCESSIVE DIGITS OF A NUMBER SYSTEM STARTING WITH THE MOST SIGNIFICANT DIGIT FIRST, MEANS FOR CHANGING THE SIGNAL ON ONE OF SAID STORAGE MEANS AFTER EACH SAID PERIODIC COUPLING BY AN AMOUNT EQUAL TO THE LAST TRANSFERRED PORTION OF SAID REFERENCE SIGNAL, AND ACCUMULATING MEANS COUPLED TO ONE OF SAID STORAGE MEANS FOR ACCUMULATING AN OUTPUT SIGNAL FROM SAID ONE STORAGE MEANS DIRECTLY PROPORTIONAL TO THE ALGEBRAIC SUM OF EACH OF SAID TRANSFERRED PORTIONS OF SAID REFERENCE SIGNAL.
Claim 2
Dependent Claim
150 words
A SIGNAL GENERATOR FOR ANALOG TO DIGITAL AND DIGITAL TO ANALOG CONVERTERS COMPRISING FIRST AND SECOND SIGNAL STORAGE MEANS, MEANS FOR STORING A REFERENCE SIGNAL ON SAID FIRST STORAGE MEANS, MEANS FOR PERIODICALLY COUPLING SAID FIRST AND SECOND STORAGE MEANS TOGETHER IN SIGNAL SHARING RELATIONSHIP WHEREBY SUCCESSIVE PORTIONS OF SAID REFERENCE SIGNAL ARE PERIODICALLY TRANSFERRED BETWEEN SAID FIRST STORAGE MEANS AND SAID SECOND STORAGE MEANS IN SUCCESSIVELY WEIGHTED QUANTITIES REPRESENTATIVE OF THE SUCCESSIVE DIGITS OF A NUMBER SYSTEM STARTING WITH THE MOST SIGNIFICANT DIGIT FIRST, MEANS FOR CHANGING THE SIGNAL ON ONE OF SAID STORAGE MEANS AFTER EACH SAID PERIODIC COUPLING BY AN AMOUNT EQUAL TO THE LAST TRANSFERRED PORTION OF SAID REFERENCE SIGNAL, AND ACCUMULATING MEANS COUPLED TO ONE OF SAID STORAGE MEANS FOR ACCUMULATING AN OUTPUT SIGNAL FROM SAID ONE STORAGE MEANS DIRECTLY PROPORTIONAL TO THE ALGEBRAIC SUM OF EACH OF SAID TRANSFERRED PORTIONS OF SAID REFERENCE 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) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |