US3226565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Logic tree comprising nor or nand logic blocks
Assignee: International Business Machines Corp
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Filing: 1961-03-28
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Granted: 1965-12-28
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Expires: 1981-03-28
Abstract
No abstract record available.
Inventors
- 👤 Earle John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:53
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/173
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A STROKE-TYPE FUNCTION TREE FOR N INPUT VARIABLES COMPRISING N+1 BANKS OF SIMILAR STROKE-TYPE BLOCKS SEQUENTIALLY RANKED O-N, WITH INTERCONNECTIONS ACCORDING TO THE FOLLOWING ALGORITHM: (A) EACH BANK X (EXCEPT BANK N) RECEIVES AS INPUTS, TO RESPECTIVE STROKE-TYPE BLOCKS, SPECIFIC SETS OF ALL POSSIBLE SETS OF COMBINATIONS OF (N-X) INPUT VARIABLES; (B) EACH STROKE-TYPE BLOCK WHICH RECEIVES A SET OF INPUTS SPECIFIED ABOVE IN CLAUSE (A) ALSO RECEIVES AS INPUTS THE OUTPUTS FROM ALL PREVIOUS BANK STROKETYPE BLOCKS WHICH HAVE INPUT SETS INCLUDING THE SAME INPUT VARIABLES; (C) BANK N STROKE-TYPE BLOCKS RECEIVES AS INPUTS THE OUTPUTS FROM EACH STROKE-TYPE BLOCK OF EACH PREVIOUS BANK OF STOKE-TYPE BLOCKS; (D) THE NUMBER CXN OF STROKE-TYPE BLOCKS IN ANY GIVEN BANK X FOR AN N-INPUT TREE IS A FACTORIAL FUNCTION OF N AND X AS FOLLOWS:
Claim 2
Dependent Claim
134 words
A STROKE-TYPE FUNCTION TREE FOR N INPUT VARIABLES COMPRISING N+1 BANKS OF SIMILAR STROKE-TYPE BLOCKS SEQUENTIALLY RANKED O-N, WITH INTERCONNECTIONS ACCORDING TO THE FOLLOWING ALGORITHM: (A) EACH BANK X (EXCEPT BANK N) RECEIVES AS INPUTS, TO RESPECTIVE STROKE-TYPE BLOCKS, SPECIFIC SETS OF ALL POSSIBLE SETS OF COMBINATIONS OF (N-X) INPUT VARIABLES; (B) EACH STROKE-TYPE BLOCK WHICH RECEIVES A SET OF INPUTS SPECIFIED ABOVE IN CLAUSE (A) ALSO RECEIVES AS INPUTS THE OUTPUTS FROM ALL PREVIOUS BANK STROKETYPE BLOCKS WHICH HAVE INPUT SETS INCLUDING THE SAME INPUT VARIABLES; (C) BANK N STROKE-TYPE BLOCKS RECEIVES AS INPUTS THE OUTPUTS FROM EACH STROKE-TYPE BLOCK OF EACH PREVIOUS BANK OF STOKE-TYPE BLOCKS; (D) THE NUMBER CXN OF STROKE-TYPE BLOCKS IN ANY GIVEN BANK X FOR AN N-INPUT TREE IS A FACTORIAL FUNCTION OF N AND X AS FOLLOWS:
References Cited (Backward Citations)
US3028088A
Cited
US2953773A
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US3027465A
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US3075093A
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US3074640A
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US3094614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |