US3286253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analog-to-digital encoder
Assignee: Atomic Energy of Canada Ltd AECL
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Filing: 1964-03-10
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Granted: 1966-11-15
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Expires: 1984-03-10
Abstract
No abstract record available.
Inventors
- 👤 Leng John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:04
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
AN ANALOG-TO-DIGITAL ENCODER FOR CONVERTING AN ANALOG INPUT SIGNAL TO A CORRESPONDING SET OF DIGITAL OUTPUT SIGNALS, COMPRISING (A) A LOWER LEVEL DIGITAL REGISTER, (B) AN UPPER LEVEL DIGITAL REGISTER, (C) DECODING MEANS COUPLED TO SAID REGISTERS FOR GENERATING AN ANALOG FEEDBACK SIGNAL CORRESPONDING TO THE DIGITAL INFORMATION IN SAID REGISTERS, (D) MEANS FOR DETERMINING THE DIFFERENCE BETWEEN SAID ANALOG FEEDBACK SIGNAL AND SAID ANALOG INPUT SIGNAL, AND MEANS FOR GENERATING A FIRST OUTPUT SIGNAL WHEN SAID DIFFERENCE IS NOT LESS THAN A FIRST VALUE EQUIVALENT TO ONE STEP IN SAID UPPER LEVEL REGISTER AND FOR GENERATING A SECOND OUTPUT SIGNAL WHEN SAID DIFFERENCE IS LESS THAN SAID FIRST VALUE BUT NOT LESS THAN A SECOND VALUE EQUIVALENT TO APPROXIMATELY ONE STEP IN SAID LOWER LEVEL REGISTER, (E) AND MEANS RESPONSIVE TO SAID FIRST OUTPUT SIGNAL FOR PULSING SAID UPPER LEVEL REGISTER AND RESPONSIVE TO SAID SECOND OUTPUT SIGNAL FOR PULSING SAID LOWER LEVEL REGISTER.
Claim 2
Dependent Claim
155 words
AN ANALOG-TO-DIGITAL ENCODER FOR CONVERTING AN ANALOG INPUT SIGNAL TO A CORRESPONDING SET OF DIGITAL OUTPUT SIGNALS, COMPRISING (A) A LOWER LEVEL DIGITAL REGISTER, (B) AN UPPER LEVEL DIGITAL REGISTER, (C) DECODING MEANS COUPLED TO SAID REGISTERS FOR GENERATING AN ANALOG FEEDBACK SIGNAL CORRESPONDING TO THE DIGITAL INFORMATION IN SAID REGISTERS, (D) MEANS FOR DETERMINING THE DIFFERENCE BETWEEN SAID ANALOG FEEDBACK SIGNAL AND SAID ANALOG INPUT SIGNAL, AND MEANS FOR GENERATING A FIRST OUTPUT SIGNAL WHEN SAID DIFFERENCE IS NOT LESS THAN A FIRST VALUE EQUIVALENT TO ONE STEP IN SAID UPPER LEVEL REGISTER AND FOR GENERATING A SECOND OUTPUT SIGNAL WHEN SAID DIFFERENCE IS LESS THAN SAID FIRST VALUE BUT NOT LESS THAN A SECOND VALUE EQUIVALENT TO APPROXIMATELY ONE STEP IN SAID LOWER LEVEL REGISTER, (E) AND MEANS RESPONSIVE TO SAID FIRST OUTPUT SIGNAL FOR PULSING SAID UPPER LEVEL REGISTER AND RESPONSIVE TO SAID SECOND OUTPUT SIGNAL FOR PULSING SAID LOWER LEVEL REGISTER.
References Cited (Backward Citations)
US2775754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |