US3217151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-linear element for an analog computer
Assignee: Computronics Inc
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Filing: 1960-08-04
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Granted: 1965-11-09
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Expires: 1980-08-04
Abstract
No abstract record available.
Inventors
- 👤 David R Miller
- 👤 Roger H Rathburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:09
CPC Classifications
G; G06; G06J; G06J1/00; G06G; G06G7/00; G06G7/48; G06G7/78
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
A NON-LINEAR ELEMENT ADAPTED TO GENERATE AN OUTPUT VOLTAGE PROPORTIONAL TO THE PRODUCT OF A FIRST CONTINUOUSLY VARIABLE INPUT VOLTAGE AND A FUNCTION OF A SECOND CONTINUOUSLY VARIABLE INPUT VOLTAGE WHICH VARIES THROUGH A SELECTED RANGE AND COMPRISING, IN COMBINATION: (A) A PLURALITY OF POTENTIOMETER MEANS HAVING VOLTAGE SOURCE ARMS ADAPTED TO INDIVIDUALLY RECEIVE SAID FIRST INPUT VOLTAGE; (B) AN OUTPUT LINE HAVING A PLURALITY OF OUTPUT LEADS WITH EACH LEAD CONNECTING WITH A VOLTAGE SOURCE ARM; (C) A GATE MEANS INCLUDING A CONTROL LEAD IN EACH OUTPUT LEAD ADAPTED TO NORMALLY HOLD THE OUTPUT LEAD OPEN BUT TO CLOSE THE LEAD RESPONSIVE TO A VOLTAGE CHANGE IN THE CONTROL LEAD; AND (D) A DISCRIMINATOR MEANS CONNECTING WITH THE CONTROL LEADS AND WITH SAID SECOND INPUT AND BEING ADAPTED TO PRODUCE A VOLTAGE CHANGE IN ONE GATE CONTROL LEAD AT A TIME AND TO SHIFT THE VOLTAGE CHANGE FROM ONE GATE CONTROL LEAD TO ANOTHER RESPONSIVE TO AND IN CORRELATION WITH THE CHANGE OF VOLTAGE OF SAID SECOND INPUT, AND WHEREIN THE VOLTAGE SOURCE ARM SETTINGS AND THE DISCRIMINATOR MEANS ARE SEQUENTIALLY
Claim 2
Dependent Claim
182 words
A NON-LINEAR ELEMENT ADAPTED TO GENERATE AN OUTPUT VOLTAGE PROPORTIONAL TO THE PRODUCT OF A FIRST CONTINUOUSLY VARIABLE INPUT VOLTAGE AND A FUNCTION OF A SECOND CONTINUOUSLY VARIABLE INPUT VOLTAGE WHICH VARIES THROUGH A SELECTED RANGE AND COMPRISING, IN COMBINATION: (A) A PLURALITY OF POTENTIOMETER MEANS HAVING VOLTAGE SOURCE ARMS ADAPTED TO INDIVIDUALLY RECEIVE SAID FIRST INPUT VOLTAGE; (B) AN OUTPUT LINE HAVING A PLURALITY OF OUTPUT LEADS WITH EACH LEAD CONNECTING WITH A VOLTAGE SOURCE ARM; (C) A GATE MEANS INCLUDING A CONTROL LEAD IN EACH OUTPUT LEAD ADAPTED TO NORMALLY HOLD THE OUTPUT LEAD OPEN BUT TO CLOSE THE LEAD RESPONSIVE TO A VOLTAGE CHANGE IN THE CONTROL LEAD; AND (D) A DISCRIMINATOR MEANS CONNECTING WITH THE CONTROL LEADS AND WITH SAID SECOND INPUT AND BEING ADAPTED TO PRODUCE A VOLTAGE CHANGE IN ONE GATE CONTROL LEAD AT A TIME AND TO SHIFT THE VOLTAGE CHANGE FROM ONE GATE CONTROL LEAD TO ANOTHER RESPONSIVE TO AND IN CORRELATION WITH THE CHANGE OF VOLTAGE OF SAID SECOND INPUT, AND WHEREIN THE VOLTAGE SOURCE ARM SETTINGS AND THE DISCRIMINATOR MEANS ARE SEQUENTIALLY
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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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |