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US3308284A Expired / Lapsed US ⏱️ 0.0 years remaining

Qui-binary adder and readout latch

Assignee: International Business Machines Corp
•
Filing: 1963-06-28
•
Granted: 1967-03-07
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Expires: 1983-06-28
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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)

US3009639A Cited
US2951637A Cited
US2991009A Cited
US3015445A Cited
US3152262A Cited
US2996305A Cited
US3175102A Cited
US3171974A 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

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