US3309510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analog multiplier
Assignee: Individual
•
Filing: 1963-07-12
•
Granted: 1967-03-14
•
Expires: 1983-07-12
Abstract
No abstract record available.
Inventors
- 👤 Brown Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:15
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/16; G06G7/161
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
AN ANALOG VOLTAGE MULTIPLIER COMPRISING IN COMBINATION: (A) MEANS FOR GENERATING A RUN-DOWN VOLTAGE, (B) A FIRST VOLTAGE COMPARATOR CONNECTED TO SAID GENERATING MEANS, (C) A FIRST ANALOG VOLTAGE SOURCE CONNECTED TO SAID COMPARATOR FOR GENERATING A PULSE AT THE OUTPUT OF SAID COMPARATOR WHEN SAID ANALOG VOLTAGE EQUALS SAID RUN-DOWN VOLTAGE, (D) A SECOND VOLTAGE COMPARATOR CONNECTED TO SAID GENERATING MEANS, (E) A REFERENCE VOLTAGE SOURCE CONNECTED TO SAID SECOND COMPARATOR FOR GENERATING A PULSE AT THE OUTPUT OF SAID SECOND COMPARATOR WHEN SAID REFERENCE VOLTAGE EQUALS SAID RUN-DOWN VOLTAGE, (F) GATE MEANS CONNECTED TO SAID FIRST AND SECOND COMPARATORS, (G) A SECOND ANALOG VOLTAGE SOURCE CONNECTED TO SAID GATE MEANS, AND (H) A FILTER CIRCUIT CONNECTED TO SAID GATE MEANS FOR PROVIDING A SIGNAL DIRECTLY PROPORTIONAL TO THE PRODUCT OF SAID FIRST AND SECOND ANALOG VOLTAGES.
Claim 2
Dependent Claim
138 words
AN ANALOG VOLTAGE MULTIPLIER COMPRISING IN COMBINATION: (A) MEANS FOR GENERATING A RUN-DOWN VOLTAGE, (B) A FIRST VOLTAGE COMPARATOR CONNECTED TO SAID GENERATING MEANS, (C) A FIRST ANALOG VOLTAGE SOURCE CONNECTED TO SAID COMPARATOR FOR GENERATING A PULSE AT THE OUTPUT OF SAID COMPARATOR WHEN SAID ANALOG VOLTAGE EQUALS SAID RUN-DOWN VOLTAGE, (D) A SECOND VOLTAGE COMPARATOR CONNECTED TO SAID GENERATING MEANS, (E) A REFERENCE VOLTAGE SOURCE CONNECTED TO SAID SECOND COMPARATOR FOR GENERATING A PULSE AT THE OUTPUT OF SAID SECOND COMPARATOR WHEN SAID REFERENCE VOLTAGE EQUALS SAID RUN-DOWN VOLTAGE, (F) GATE MEANS CONNECTED TO SAID FIRST AND SECOND COMPARATORS, (G) A SECOND ANALOG VOLTAGE SOURCE CONNECTED TO SAID GATE MEANS, AND (H) A FILTER CIRCUIT CONNECTED TO SAID GATE MEANS FOR PROVIDING A SIGNAL DIRECTLY PROPORTIONAL TO THE PRODUCT OF SAID FIRST AND SECOND ANALOG VOLTAGES.
References Cited (Backward Citations)
US2773641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |