Patent US3214602A successfully refreshed from Google Patents.
US3214602A
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Multivibrator pulse generator
Assignee: International Business Machines Corp
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Filing: 1959-12-07
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Granted: 1965-10-26
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Expires: 1979-12-07
Abstract
No abstract record available.
Inventors
- 👤 Joan M Heyning
- 👤 Moulds Bill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:46
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
132 words
A TIMING CIRCUIT FOR CONTROLLING THE DURATION OF OUTPUT PULSES FROM A MULTIVIBRATOR WHICH HAS AN INPUT CIRCUIT AT WHICH TRIGGER SIGNALS ARE APPLIED TO CHANGE THE MULTIVIBRATOR FROM A STEADY STATE CONDITION AND THUS TO GENERATE OUTPUT PULSES, THE TIMING CIRCUIT INCLUDING IN COMBINATION A RESISTANCE-CAPACITANCE CIRCUIT HAVING A VARIABLE RESISTANCE AND RESPONSIVE TO THE OUTPUT PULSES FROM THE MULTIVIBRATOR FOR PROVIDING DIFFERENTIATED SIGNALS THEREFROM, AND A CONTROL CIRCUIT COUPLED TO THE RESISTANCE-CAPACITANCE CIRCUIT AND TO THE INPUT CIRCUIT OF THE MULTIVIBRATOR FOR SHIFTING THE INPUT CIRCUIT POTENTIAL TO REESTABLISH THE INITIAL STEADY STATE CONDITION OF THE MULTIVIBRATOR, THE CONTROL CIRCUIT BEING VARIABLY OPERABLE IN RESPONSE TO THE TIME CONSTANT OF THE TIMING CIRCUIT AND THE SIGNAL LEVEL OF THE CONTROL CIRCUIT, BOTH OF WHICH ARE DETERMINED BY THE VARIABLE RESISTANCE.
Claim 2
Dependent Claim
132 words
A TIMING CIRCUIT FOR CONTROLLING THE DURATION OF OUTPUT PULSES FROM A MULTIVIBRATOR WHICH HAS AN INPUT CIRCUIT AT WHICH TRIGGER SIGNALS ARE APPLIED TO CHANGE THE MULTIVIBRATOR FROM A STEADY STATE CONDITION AND THUS TO GENERATE OUTPUT PULSES, THE TIMING CIRCUIT INCLUDING IN COMBINATION A RESISTANCE-CAPACITANCE CIRCUIT HAVING A VARIABLE RESISTANCE AND RESPONSIVE TO THE OUTPUT PULSES FROM THE MULTIVIBRATOR FOR PROVIDING DIFFERENTIATED SIGNALS THEREFROM, AND A CONTROL CIRCUIT COUPLED TO THE RESISTANCE-CAPACITANCE CIRCUIT AND TO THE INPUT CIRCUIT OF THE MULTIVIBRATOR FOR SHIFTING THE INPUT CIRCUIT POTENTIAL TO REESTABLISH THE INITIAL STEADY STATE CONDITION OF THE MULTIVIBRATOR, THE CONTROL CIRCUIT BEING VARIABLY OPERABLE IN RESPONSE TO THE TIME CONSTANT OF THE TIMING CIRCUIT AND THE SIGNAL LEVEL OF THE CONTROL CIRCUIT, BOTH OF WHICH ARE DETERMINED BY THE VARIABLE RESISTANCE.
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |