Patent US3174033A successfully refreshed from Google Patents.
US3174033A
Expired / Lapsed
US
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Analog multipler-divider
Assignee: Unisys Corp
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Filing: 1960-03-24
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Granted: 1965-03-16
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Expires: 1980-03-24
Abstract
No abstract record available.
Inventors
- 👤 Victor H Seliger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:36
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/16; G06G7/163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
AN ANALOG MULTIPLIER-DIVIDER COMPRISING A VARIABLE GAIN AMPLIFIER UNIT HAVING A FIRST AMPLIFIER AND A SEPARATE SECOND AMPLIFIER, AGAIN COMPENSATOR INTERPOSED BETWEEN SAID FIRST AND SECOND AMPLIFIER, AN INPUT TERMINAL THROUGH WHICH INPUT SIGNALS ARE ADAPTED TO BE IMPARTED TO SAID FIRST AMPLIFIER, A FIRST ELECTROMAGNETIC TRANSDUCER HAVING AN INPUT TERMINAL THROUGH WHICH INPUT SIGNALS ARE ADAPTED TO BE IMPARTED THERETO AND AN OUTPUT TERMINAL THROUGH WHICH THE OUTPUT OF SAID FIRST ELECTROMAGNETIC TRANSDUCER IS IMPARTED TO A RECEIVER, A SECOND ELECTROMAGNETIC TRANSDUCER ADAPTED TO GENERATE THE SAME FUNCTION AS SAID FIRST TRANSDUCER AND HAVING AN INPUT TERMINAL THROUGH WHICH INPUT SIGNALS ARE ADAPTED TO BE IMPARTED THERETO AND AN OUTPUT LEAD THROUGH WHICH THE OUTPUT OF SAID SECOND ELECTROMAGNETIC TRANSDUCER IS IMPARTED TO SAID FIRST AMPLIFIER, A SERVO MOTOR, MEANS THROUGH WHICH THE OUTPUT OF SAID FIRST AMPLIFIER IS IMPARTED TO SAID SECOND AMPLIFIER, CONDUCTOR MEANS THROUGH WHICH THE ELECTRICAL OUTPUT OF SAID SECOND AMPLIFIER IS IMPARTED TO SAID SERVO MOTOR, AND MEANS THROUGH WHICH SAID FIRST AND SECOND ELECTROMAGNETIC TRANSDUCERS ARE DRIVEN BY THE MECHANICAL OUTPUT OF SAID SERVO MOTOR.
Claim 2
Dependent Claim
182 words
AN ANALOG MULTIPLIER-DIVIDER COMPRISING A VARIABLE GAIN AMPLIFIER UNIT HAVING A FIRST AMPLIFIER AND A SEPARATE SECOND AMPLIFIER, AGAIN COMPENSATOR INTERPOSED BETWEEN SAID FIRST AND SECOND AMPLIFIER, AN INPUT TERMINAL THROUGH WHICH INPUT SIGNALS ARE ADAPTED TO BE IMPARTED TO SAID FIRST AMPLIFIER, A FIRST ELECTROMAGNETIC TRANSDUCER HAVING AN INPUT TERMINAL THROUGH WHICH INPUT SIGNALS ARE ADAPTED TO BE IMPARTED THERETO AND AN OUTPUT TERMINAL THROUGH WHICH THE OUTPUT OF SAID FIRST ELECTROMAGNETIC TRANSDUCER IS IMPARTED TO A RECEIVER, A SECOND ELECTROMAGNETIC TRANSDUCER ADAPTED TO GENERATE THE SAME FUNCTION AS SAID FIRST TRANSDUCER AND HAVING AN INPUT TERMINAL THROUGH WHICH INPUT SIGNALS ARE ADAPTED TO BE IMPARTED THERETO AND AN OUTPUT LEAD THROUGH WHICH THE OUTPUT OF SAID SECOND ELECTROMAGNETIC TRANSDUCER IS IMPARTED TO SAID FIRST AMPLIFIER, A SERVO MOTOR, MEANS THROUGH WHICH THE OUTPUT OF SAID FIRST AMPLIFIER IS IMPARTED TO SAID SECOND AMPLIFIER, CONDUCTOR MEANS THROUGH WHICH THE ELECTRICAL OUTPUT OF SAID SECOND AMPLIFIER IS IMPARTED TO SAID SERVO MOTOR, AND MEANS THROUGH WHICH SAID FIRST AND SECOND ELECTROMAGNETIC TRANSDUCERS ARE DRIVEN BY THE MECHANICAL OUTPUT OF SAID SERVO MOTOR.
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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |