US3218444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal converter
Assignee: Unisys Corp
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Filing: 1962-03-29
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Granted: 1965-11-16
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Expires: 1982-03-29
Abstract
No abstract record available.
Inventors
- 👤 Mollinga Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:12
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/18; G06G7/184
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A SIGNAL CONVERTER COMPRISING: A SUMMING NETWORK HAVING FIRST AND SECOND INPUT TERMINALS AND AN OUTPUT TERMINAL, THE SUMMING NETWORK BEING ARRANGED TO HAVE A VOLTAGE GAIN SUBSTANTIALLY EQUAL TO UNITY; FIRST AND SECOND IMPEDANCE ELEMENTS CONNECTED IN SERIES BETWEEN THE OUTPUT TERMINAL OF THE SUMMING NETWORK AND A CONSTANT VOLTAGE SOURCE, RESPECTIVELY, THE IMPEDANCE ELEMENTS BEING A RESISTOR AND A CAPACITOR; OUTPUT MEANS COUPLED TO THE SERIES JUNCTION BETWEEN THE FIRST AND SECOND IMPEDANCE ELEMENTS FOR DETECTING AN OUTPUT VOLTAGE DEVELOPED ACROSS THE SECOND IMPEDANCE ELEMENT IN RESPONSE TO AN INPUT VOLTAGE SIGNAL APPLIED TO THE FIRST INPUT TERMINAL OF THE SUMMING NETWORK; AND MEANS FOR DIRECTLY APPLYING THE OUTPUT VOLTAGE TO THE SECOND INPUT TERMINAL OF THE SUMMING NETWORK SUCH THAT A VOLTAGE EQUAL TO A SUM OF THE INPUT VOLTAGE AND THE OUTPUT VOLTAGE IS DEVELOPED AT THE OUTPUT TERMINAL OF THE SUMMING NETWORK.
Claim 2
Dependent Claim
147 words
A SIGNAL CONVERTER COMPRISING: A SUMMING NETWORK HAVING FIRST AND SECOND INPUT TERMINALS AND AN OUTPUT TERMINAL, THE SUMMING NETWORK BEING ARRANGED TO HAVE A VOLTAGE GAIN SUBSTANTIALLY EQUAL TO UNITY; FIRST AND SECOND IMPEDANCE ELEMENTS CONNECTED IN SERIES BETWEEN THE OUTPUT TERMINAL OF THE SUMMING NETWORK AND A CONSTANT VOLTAGE SOURCE, RESPECTIVELY, THE IMPEDANCE ELEMENTS BEING A RESISTOR AND A CAPACITOR; OUTPUT MEANS COUPLED TO THE SERIES JUNCTION BETWEEN THE FIRST AND SECOND IMPEDANCE ELEMENTS FOR DETECTING AN OUTPUT VOLTAGE DEVELOPED ACROSS THE SECOND IMPEDANCE ELEMENT IN RESPONSE TO AN INPUT VOLTAGE SIGNAL APPLIED TO THE FIRST INPUT TERMINAL OF THE SUMMING NETWORK; AND MEANS FOR DIRECTLY APPLYING THE OUTPUT VOLTAGE TO THE SECOND INPUT TERMINAL OF THE SUMMING NETWORK SUCH THAT A VOLTAGE EQUAL TO A SUM OF THE INPUT VOLTAGE AND THE OUTPUT VOLTAGE IS DEVELOPED AT THE OUTPUT TERMINAL OF THE SUMMING NETWORK.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |