US3308284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Qui-binary adder and readout latch
Assignee: International Business Machines Corp
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Filing: 1963-06-28
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Granted: 1967-03-07
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Expires: 1983-06-28
Abstract
No abstract record available.
Inventors
- 👤 Harold R Grubb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:12
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/491; G06F7/4912; G06F2207/00; G06F2207/491; G06F2207/49185
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
117 words
A QUI-BINARY ADDER AND READOUT CIRCUIT COMPRISING: (A) FIRST AND SECOND SETS OF INPUT LINES PROVIDING FIRST AND SECOND SETS OF CONCURRENT SIGNALS REPRESENTING THE DECIMAL DIGITS IN ACCORDANCE WITH A NORMAL NUMBERING SYSTEM, (B) A TRANSLATING MEANS INCLUDING A PLURALITY OF AND AND OR SWITCH CIRCUIT CONFIGURATIONS FOR CONVERTING THE SIGNALS ON SAID FIRST AND SECOND SETS OF INPUT LINES FROM BINAR CODED DECIMAL TO QUI-BINARY NOTATION, (C) AN ADDER MATRIX INCLUDING CAPACTIVE ELEMENTS FOR SELECTIVELY COUPLING THE OUTPUTS OF SAID AND AND OR SWITCH CIRCUITS FOR DERIVING SUM REPRESENTING SIGNALS, AND (D) A SET OF SUM OUTPUT LINES EACH INCLUDING A LATCH CIRCUIT ADAPTED TO RESPOND TO THE SUM REPRESENTING SIGNALS FROM SAID ADDER MATRIX.
References Cited (Backward Citations)
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US3015445A
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |