US3292013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Divider circuit providing quotient of amplitudes of pair of input signals
Assignee: Mithras Inc
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Filing: 1964-09-24
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Granted: 1966-12-13
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Expires: 1984-09-24
Abstract
No abstract record available.
Inventors
- 👤 Golahny Yehuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:37
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/16; G06G7/163; H; H03; H03G; H03G3/00; H03G3/20; H03G3/30; H03G3/3005; H03G3/301; H03G3/3015
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
DIVIDER CIRCUIT MEANS FOR DIVIDING THE AMPLITUDES OF A PAIR OF INPUT SIGNALS TO PRODUCE AN OUTPUT SIGNAL REPRESENTATIVE OF THE RESULTANT QUOTIENT, COMPRISING: VARIABLE GAIN AMPLIFIER MEANS ADAPTED TO RECEIVE SAID PAIR OF SIGNALS WHICH ARE DISTINGUISHABLE WITH RESPECT TO A SELECTED CHARACTERISTIC, SAID AMPLIFIER MEANS HAVING A BIPOLAR TRANSISTOR; GAIN CONTROL MEANS INCLUDING A FIELD EFFECT TRANSISTOR, DIRECTLY COUPLED TO SAID AMPLIFIER MEANS FOR CONTROLLING THE GAIN OF SAID AMPLIFIER MEANS, SAID AMPLIFIER MEANS BEING COUPLED TO SAID FIELD EFFECT TRANSISTOR; GAIN CONTROL BIAS FILTER MEANS COUPLED TO SAID AMPLIFIER MEANS AND SAID CONTROL MEANS FOR BIASING SAID GAIN CONTROL MEANS ONLY IN ACCORDANCE WITH THE AMPLITUDE OF A SELECTED ONE OF SAID SIGNALS; AND OUTPUT FILTER MEANS COUPLED TO SAID AMPLIFIER MEANS FOR PRODUCING AN OUTPUT SIGNAL REPRESENTATIVE OF SAID QUOTIENT BETWEEN THE AMPLITUDES OF THE OTHER SAID SIGNAL AND SAID SELECTED SIGNAL.
Claim 2
Dependent Claim
146 words
DIVIDER CIRCUIT MEANS FOR DIVIDING THE AMPLITUDES OF A PAIR OF INPUT SIGNALS TO PRODUCE AN OUTPUT SIGNAL REPRESENTATIVE OF THE RESULTANT QUOTIENT, COMPRISING: VARIABLE GAIN AMPLIFIER MEANS ADAPTED TO RECEIVE SAID PAIR OF SIGNALS WHICH ARE DISTINGUISHABLE WITH RESPECT TO A SELECTED CHARACTERISTIC, SAID AMPLIFIER MEANS HAVING A BIPOLAR TRANSISTOR; GAIN CONTROL MEANS INCLUDING A FIELD EFFECT TRANSISTOR, DIRECTLY COUPLED TO SAID AMPLIFIER MEANS FOR CONTROLLING THE GAIN OF SAID AMPLIFIER MEANS, SAID AMPLIFIER MEANS BEING COUPLED TO SAID FIELD EFFECT TRANSISTOR; GAIN CONTROL BIAS FILTER MEANS COUPLED TO SAID AMPLIFIER MEANS AND SAID CONTROL MEANS FOR BIASING SAID GAIN CONTROL MEANS ONLY IN ACCORDANCE WITH THE AMPLITUDE OF A SELECTED ONE OF SAID SIGNALS; AND OUTPUT FILTER MEANS COUPLED TO SAID AMPLIFIER MEANS FOR PRODUCING AN OUTPUT SIGNAL REPRESENTATIVE OF SAID QUOTIENT BETWEEN THE AMPLITUDES OF THE OTHER SAID SIGNAL AND SAID SELECTED SIGNAL.
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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |