US3211926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monostable multivibrator with variable pulse width
Assignee: Raytheon Co
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Filing: 1963-04-24
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Granted: 1965-10-12
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Expires: 1983-04-24
Abstract
No abstract record available.
Inventors
- 👤 Edward B Frysinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:12
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/284
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A PULSE GENERATOR FOR RESPONDING TO AN INPUT TRIGGER SIGNAL TO PRODUCE AN OUTPUT PULSE OF VARIABLE DURATION COMPRISING: FIRST AND SECOND SIGNAL AMPLIFYING SEMICONDUCTOR DEVICE, CIRCUIT INTERCONNECTING SAID DEVICES FOR PROVIDING A FIRST ELECTRICAL STATE IN WHICH SAID FIRST DEVICE IS CONDUCTIVE OF CURRENT AND SAID SECOND DEVICE IS NONCONDUCTIVE OF CURRENT AND FOR EFFECTING IN RESPONSE TO SAID TRIGGER SIGNAL A SECOND ELECTRICAL STATE IN WHICH SAID FIRST DEVICE IS NONCONDUCTIVE OF CURRENT AND SAID SECOND DEVICE IS CONDUCTIVE OF CURRENT FOR AN INTERVAL OF TIME DURING WHICH SAID OUTPUT PULSE IS PROVIDED AND AFTER WHICH SAID PULSE GENERATOR REVERTS TO SAID FIRST ELECTRICAL STATE, A CONTROLLABLE IMPEDANCE SEMI-CONDUCTOR DEVICE HAVING A CURRENT PATH OF VARIABLE IMPEDANCE COUPLED TO SAID CIRCUIT MANS AND HAVING A CONTROL ELECTRODE, AND MEANS FOR APPLYING A CONTROL SIGNAL TO SAID CONTROL ELECTRODE TO VARY THE IMPEDANCE OF SAID CURRENT PATH, WHEREBY THE DURATION OF SAID OUTPUT PULSE IS VARIED.
Claim 2
Dependent Claim
157 words
A PULSE GENERATOR FOR RESPONDING TO AN INPUT TRIGGER SIGNAL TO PRODUCE AN OUTPUT PULSE OF VARIABLE DURATION COMPRISING: FIRST AND SECOND SIGNAL AMPLIFYING SEMICONDUCTOR DEVICE, CIRCUIT INTERCONNECTING SAID DEVICES FOR PROVIDING A FIRST ELECTRICAL STATE IN WHICH SAID FIRST DEVICE IS CONDUCTIVE OF CURRENT AND SAID SECOND DEVICE IS NONCONDUCTIVE OF CURRENT AND FOR EFFECTING IN RESPONSE TO SAID TRIGGER SIGNAL A SECOND ELECTRICAL STATE IN WHICH SAID FIRST DEVICE IS NONCONDUCTIVE OF CURRENT AND SAID SECOND DEVICE IS CONDUCTIVE OF CURRENT FOR AN INTERVAL OF TIME DURING WHICH SAID OUTPUT PULSE IS PROVIDED AND AFTER WHICH SAID PULSE GENERATOR REVERTS TO SAID FIRST ELECTRICAL STATE, A CONTROLLABLE IMPEDANCE SEMI-CONDUCTOR DEVICE HAVING A CURRENT PATH OF VARIABLE IMPEDANCE COUPLED TO SAID CIRCUIT MANS AND HAVING A CONTROL ELECTRODE, AND MEANS FOR APPLYING A CONTROL SIGNAL TO SAID CONTROL ELECTRODE TO VARY THE IMPEDANCE OF SAID CURRENT PATH, WHEREBY THE DURATION OF SAID OUTPUT PULSE IS VARIED.
References Cited (Backward Citations)
FR1009873A
Cited
US2945966A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |