US3201611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Staircase-waveform generator employing two controllable ramp signal generators combined at the output
Assignee: Unisys Corp
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Filing: 1963-02-18
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Granted: 1965-08-17
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Expires: 1983-02-18
Abstract
No abstract record available.
Inventors
- 👤 Mollinga Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:00
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/313; H03K3/315; H03K4/00; H03K4/02; H03K6/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
IN COMBINATION, A FIRST RAMP GENERATORO COMPRISING A CONSTANT CURRENT SOURCE, A TIMING CIRCUIT RESPONSIVE TO THE CONSTANT CURRENT SOURCE, A BUFFER AMPLIFIER FOR ISOLATING THE TIMING CIRCUIT FROM AN OUTPUT CIRCUIT, A SWITCH CONNECTED TO THE OUTPUT OF THE BUFFER AMPLIFIER, THE SWITCH BEING RESPONSIVE THROUGH THE BUFFER AMPLIFIER TO THE VOLTAGE LEVEL AT THE OUTPUT OF THE TIMING CIRCUIT, A LOW IMPEDANCE PATH, AND MEANS FOR CONNECTING THE TIMING CIRCUIT TO THE LOW IMPEDANCE PATH THROUGH THE SWITCH; A SECOND RAMP GENERATOR COMPRISING A CONSTANT CURRENT SOURCE, A TIMING CIRCUIT RESPONSIVE TO THE CONSTANT CURRENT SOURCE, A BUFFER
Claim 2
Dependent Claim
100 words
IN COMBINATION, A FIRST RAMP GENERATORO COMPRISING A CONSTANT CURRENT SOURCE, A TIMING CIRCUIT RESPONSIVE TO THE CONSTANT CURRENT SOURCE, A BUFFER AMPLIFIER FOR ISOLATING THE TIMING CIRCUIT FROM AN OUTPUT CIRCUIT, A SWITCH CONNECTED TO THE OUTPUT OF THE BUFFER AMPLIFIER, THE SWITCH BEING RESPONSIVE THROUGH THE BUFFER AMPLIFIER TO THE VOLTAGE LEVEL AT THE OUTPUT OF THE TIMING CIRCUIT, A LOW IMPEDANCE PATH, AND MEANS FOR CONNECTING THE TIMING CIRCUIT TO THE LOW IMPEDANCE PATH THROUGH THE SWITCH; A SECOND RAMP GENERATOR COMPRISING A CONSTANT CURRENT SOURCE, A TIMING CIRCUIT RESPONSIVE TO THE CONSTANT CURRENT SOURCE, A BUFFER
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |