US3346730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signed ternary carry generator using threshold logic elements
Assignee: Unisys Corp
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Filing: 1965-09-30
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Granted: 1967-10-10
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Expires: 1985-09-30
Abstract
No abstract record available.
Inventors
- 👤 William H Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:37
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/0002; G; G06; G06F; G06F7/00; G06F7/02; G06F7/026; G06F7/38; G06F7/48; G06F7/4824
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A SIGNED TERNARY CARRY GENERATOR, FOR GENERATING N SIGNALS CN... CK... C1 REPRESENTATIVE OF CARRIES CORRESPONDING TO TWO TERNARY WORDS THE AUGEND OF WHICH HAS THE FORM AN... AK... A1 AND AN ADDEND OF WHICH HAS THE FORM BN... BK... B1, COMPRISING: M CARRY GENERATING GROUPS FOR GENERATING SIGNAL REPRESENTATIONS OF CN... CK... C1, EACH OF SAID CARRY GENERATING GROUPS J=1,... M-1, COUPLED TO THE NEXT LOWER CARRY GENERATING GROUP, FOR GENERATING Q SIGNALS REPRESENTATIVE OF CARRIES CQJ... CQ(J-1)+1 CORRESPONDING TO DIGIT-ORDERS AQJ... AQ(J-1)+1 OF SAID AUGEND AND DIGIT-ORDERS BQJ... BQ(J-1)+1 OF SAID ADDEND COMPRISING: INPUT MEANS FOR RECEIVING SIGNAL REPRESENTATIONS OF DIGIT-ORDERS AQJ... AQ7J-1)+1, BQJ... BQJ(J-1)+1, AND CARRY SIGNAL CQ(J-1), THE LATTER BEING REPRESENTATIVE OF THE HIGHEST DIGIT-ORDER CARRY GENERATED BY THE NEXT LOWER CARRY GENERATING GROUP, AND A PLURALITY OF MULTI-INPUT TERNARY THRESHOLD LOGIC ELEMENTS COUPLED TO SAID INPUT MEANS FOR UTILIZING SAID DIGIT-ORDER AND CARRY SIGNALS TO GENERATE Q SIGNALS REPRESENTATIVE OF THE CARRIES CQJ... CQ(J-1)+1 IN ACCORDANCE WITH THE LOGICAL FUNCTION,
Claim 2
Dependent Claim
165 words
A SIGNED TERNARY CARRY GENERATOR, FOR GENERATING N SIGNALS CN... CK... C1 REPRESENTATIVE OF CARRIES CORRESPONDING TO TWO TERNARY WORDS THE AUGEND OF WHICH HAS THE FORM AN... AK... A1 AND AN ADDEND OF WHICH HAS THE FORM BN... BK... B1, COMPRISING: M CARRY GENERATING GROUPS FOR GENERATING SIGNAL REPRESENTATIONS OF CN... CK... C1, EACH OF SAID CARRY GENERATING GROUPS J=1,... M-1, COUPLED TO THE NEXT LOWER CARRY GENERATING GROUP, FOR GENERATING Q SIGNALS REPRESENTATIVE OF CARRIES CQJ... CQ(J-1)+1 CORRESPONDING TO DIGIT-ORDERS AQJ... AQ(J-1)+1 OF SAID AUGEND AND DIGIT-ORDERS BQJ... BQ(J-1)+1 OF SAID ADDEND COMPRISING: INPUT MEANS FOR RECEIVING SIGNAL REPRESENTATIONS OF DIGIT-ORDERS AQJ... AQ7J-1)+1, BQJ... BQJ(J-1)+1, AND CARRY SIGNAL CQ(J-1), THE LATTER BEING REPRESENTATIVE OF THE HIGHEST DIGIT-ORDER CARRY GENERATED BY THE NEXT LOWER CARRY GENERATING GROUP, AND A PLURALITY OF MULTI-INPUT TERNARY THRESHOLD LOGIC ELEMENTS COUPLED TO SAID INPUT MEANS FOR UTILIZING SAID DIGIT-ORDER AND CARRY SIGNALS TO GENERATE Q SIGNALS REPRESENTATIVE OF THE CARRIES CQJ... CQ(J-1)+1 IN ACCORDANCE WITH THE LOGICAL FUNCTION,
References Cited (Backward Citations)
US3202806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |