US3234367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quotient guess divider
Assignee: International Business Machines Corp
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Filing: 1962-11-05
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Granted: 1966-02-08
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Expires: 1982-11-05
Abstract
No abstract record available.
Inventors
- 👤 Gerald H Ottaway
- 👤 Lawrence J Boland
- 👤 Gerrit A Blaauw
- 👤 Keslin Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:20
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/491; G06F7/4915; G06F7/4917; G06F2207/00; G06F2207/535; G06F2207/5352
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
249 words
A DIVIDER, FOR OPERATING BY A SERIES OF EDUCATED QUOTIENT DIGIT GUESSES, EACH GUESS ELIMINATING SUBSTANTIALLY HALF THE POSSIBLE QUOTIENT DIGITS, HAVING A DIVIDEND REMAINDER REGISTER, A DIVISOR REGISTER AND A MULIPLY UNIT CONNECTED TO DIVISOR REGISTER AND CAPABLE OF PROVIDING PRODUCT "DIVISOR X QUOTIENT GUESS" FOR EACH OF THE POSSIBLE QUOTIENT DIGITS ENCOMPASSED IN THE CHOSEN RADIX, AND A SUBSTRACT UNIT CONNECTED TO DIVIDEND REGISTER AND MULTIPLIER UNIT FOR SUBSTRACTING THE PRODUCT "DIVISOR X QUOTIENT GUESS" FROM THE DIVIDEND REMAINDER TO INDICATE THE RELATIVE MAGNITUDE OF THE TWO NUMBERS IN RESPONSE TO THE PRESENCE OR ABSENCE OF A CARRY FROM THE HIGHEST ORDER POSITION OF THE SUBSTRACT UNIT CHARACTERIZED BY: (A) TABLE ADDRESS REGISTER HAVING CAPACITY FOR A QUOTIENT DIGIT; (B) TABLE LOOKUP MECHANISM HAVING TABLE ENTRY POINTS, EACH CONTAINING A PAIR OF QUOTIENT GUESS DIGITS, COUPLED TO SAID TABLE ADDRESS REGISTER AND RESPONSIVE TO THE QUOTIENT DIGIT CONTENT TO PROVIDE FOR SUCH QUOTIENT DIGIT THE TWO POSSIBLE QUOTIENT GUESS DIGITS FOLLOWING IN THE SEQUENCE; (C) QUOTIENT GUESS STORAGE MEANS COUPLED TO SAID TABLE LOOKUP MECHANISM TO RECEIVE THE TWO POSSIBLE QUOTIENT GUESSES; (D) GATING MEANS RESPONSIVE TO A CARRY SIGNAL FROM THE SUBSTRACT UNIT FOR SELECTING THE APPROPRIATE ONE OF THE TWO QUOTIENT GUESSES IN SAID QUOTIENT GUESS STORAGE MEANS AND FOR APPLYING SUCH SELECTED QUOTIENT GUESS TO SAID TABLE ADDRESS REGISTER AND TO MULTIPLY UNIT WHEREBY THE PRODUCT "DIVISOR X QUOTIENT GUESS" IS SUBSTRACTED BY SUBSTRACT UNIT FROM THE DIVIDEND REMAINDER CONTENT OF DIVIDEND REMAINDER REGISTER.
Claim 2
Dependent Claim
249 words
A DIVIDER, FOR OPERATING BY A SERIES OF EDUCATED QUOTIENT DIGIT GUESSES, EACH GUESS ELIMINATING SUBSTANTIALLY HALF THE POSSIBLE QUOTIENT DIGITS, HAVING A DIVIDEND REMAINDER REGISTER, A DIVISOR REGISTER AND A MULIPLY UNIT CONNECTED TO DIVISOR REGISTER AND CAPABLE OF PROVIDING PRODUCT "DIVISOR X QUOTIENT GUESS" FOR EACH OF THE POSSIBLE QUOTIENT DIGITS ENCOMPASSED IN THE CHOSEN RADIX, AND A SUBSTRACT UNIT CONNECTED TO DIVIDEND REGISTER AND MULTIPLIER UNIT FOR SUBSTRACTING THE PRODUCT "DIVISOR X QUOTIENT GUESS" FROM THE DIVIDEND REMAINDER TO INDICATE THE RELATIVE MAGNITUDE OF THE TWO NUMBERS IN RESPONSE TO THE PRESENCE OR ABSENCE OF A CARRY FROM THE HIGHEST ORDER POSITION OF THE SUBSTRACT UNIT CHARACTERIZED BY: (A) TABLE ADDRESS REGISTER HAVING CAPACITY FOR A QUOTIENT DIGIT; (B) TABLE LOOKUP MECHANISM HAVING TABLE ENTRY POINTS, EACH CONTAINING A PAIR OF QUOTIENT GUESS DIGITS, COUPLED TO SAID TABLE ADDRESS REGISTER AND RESPONSIVE TO THE QUOTIENT DIGIT CONTENT TO PROVIDE FOR SUCH QUOTIENT DIGIT THE TWO POSSIBLE QUOTIENT GUESS DIGITS FOLLOWING IN THE SEQUENCE; (C) QUOTIENT GUESS STORAGE MEANS COUPLED TO SAID TABLE LOOKUP MECHANISM TO RECEIVE THE TWO POSSIBLE QUOTIENT GUESSES; (D) GATING MEANS RESPONSIVE TO A CARRY SIGNAL FROM THE SUBSTRACT UNIT FOR SELECTING THE APPROPRIATE ONE OF THE TWO QUOTIENT GUESSES IN SAID QUOTIENT GUESS STORAGE MEANS AND FOR APPLYING SUCH SELECTED QUOTIENT GUESS TO SAID TABLE ADDRESS REGISTER AND TO MULTIPLY UNIT WHEREBY THE PRODUCT "DIVISOR X QUOTIENT GUESS" IS SUBSTRACTED BY SUBSTRACT UNIT FROM THE DIVIDEND REMAINDER CONTENT OF DIVIDEND REMAINDER REGISTER.
Claim 3
Dependent Claim
132 words
A DIVIDER ACCORDING TO CLAIM 1, COMPRISING, IN ADDITION: (E) FINAL QUOTIENT RECOGNITION MECHANISM COUPLED TO SAID QUOTIENT GUESS STORAGE MEANS (C) AND RESPONSIVE TO THE LOW ORDER BITS OF THE TWO POSSIBLE QUOTIENT DIGITS TO RECONIZE THE FINAL GUESS SITUATION SAID FINAL GUESS SITUATION BEING RECOGNIZABLE WHEN ONE OF THE TWO POSSIBLE FINAL QUOTIENT DIGITS HAS AN EVEN NUMERICAL VALUE AND THE OTHER AN ODD NUMERICAL VALUE; (F) FINAL QUOTIENT REGISTRATION MEANS COUPLED TO SAID FINAL QUOTIENT RECOGNITION MEANS (E) TO REGISTER THE QUOTIENT; AND (G) DIVIDEND REMAINDER UPDATING MEANS COUPLED TO SAID FINAL QUOTIENT RECOGNITION MEANS (E) AND TO THE SUBSTRACT MEANS TO GATE THE RESULT OF SUBTRACTING THE PRODUCT OF MULTIPLYING THE DIVISOR AND THE FINALLY SELECTED QUOTIENT DIGIT FROM THE DIVIDEND REMAINDER BACK TO SAID DIVIDEND REMAINDER REGISTER.
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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |