US3167647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical analog computing circuit with square root extraction capability
Assignee: Honeywell Inc
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Filing: 1961-08-15
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Granted: 1965-01-26
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Expires: 1981-08-15
Abstract
No abstract record available.
Inventors
- 👤 William F Newbold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:04
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/16; G06G7/163; G06G7/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A COMPUTING CIRCUIT COMPRISING A FIRST AMPLIFITER MEANS HAVING A PHOTOELECTRIC GAIN CONTROL MEANS, A FIRST INPUT SIGNAL TERMINAL, A SECOND INPUT SIGNAL TERMINAL, A FIRST SWITCH MEANS FOR ALTERNATELY CONNECTING AN INPUT CIRCUIT OF SAID AMPLIFIER MEANS TO SAID FIRST AND SAID SECOND INPUT TERMINALS, SIGNAL COMPARISON MEANS FOR COMPARING THE AMPLITUDES OF TWO INPUT SIGNALS TO PRODUCE A REPRESENTATIVE DIFFERENCE SIGNAL, A THIRD INPUT TERMINAL FOR APPLYING AN INPUT SIGNAL AS ONE INPUT SIGNAL TO SAID COMPARATOR MEANS, AN OUTPUT TERMINAL, SECOND SWITCH MEANS OPERATED SYNCHRONOUSLY WITH SAID FIRST SWITCH MEANS FOR
Claim 2
Dependent Claim
94 words
A COMPUTING CIRCUIT COMPRISING A FIRST AMPLIFITER MEANS HAVING A PHOTOELECTRIC GAIN CONTROL MEANS, A FIRST INPUT SIGNAL TERMINAL, A SECOND INPUT SIGNAL TERMINAL, A FIRST SWITCH MEANS FOR ALTERNATELY CONNECTING AN INPUT CIRCUIT OF SAID AMPLIFIER MEANS TO SAID FIRST AND SAID SECOND INPUT TERMINALS, SIGNAL COMPARISON MEANS FOR COMPARING THE AMPLITUDES OF TWO INPUT SIGNALS TO PRODUCE A REPRESENTATIVE DIFFERENCE SIGNAL, A THIRD INPUT TERMINAL FOR APPLYING AN INPUT SIGNAL AS ONE INPUT SIGNAL TO SAID COMPARATOR MEANS, AN OUTPUT TERMINAL, SECOND SWITCH MEANS OPERATED SYNCHRONOUSLY WITH SAID FIRST SWITCH MEANS FOR
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |