Patent US3340506A successfully refreshed from Google Patents.
US3340506A
Expired / Lapsed
US
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Data-processing system
Assignee: Electronique & Radio Ind
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Filing: 1964-03-10
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Granted: 1967-09-05
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Expires: 1984-03-10
Abstract
No abstract record available.
Inventors
- 👤 Jean-Jacques G Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:51
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/74; H03; H03K; H03K19/00; H03K19/007; H03K19/0075; H03K19/02; H03K19/173; H03K19/1733
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
IN A DATA-PROCESSING SYSTEM PROVIDED WITH A MEMORY FOR THE STORAGE OF A SET OF INPUT DATA INCLUDING AT LEAST TWO BINARY INFORMATION SIGNALS A, B AND A LOGIC CIRCUIT FOR THE CONVERSION OF A COMBINATION OF SAID SIGNALS INTO A SINGLE BINARY DIGT S=F(A,B) THE COMBINATION THEREWITH OF A TEST CIRCUIT FOR DETERMINING THE CORRECT PERFORMANCE OF SAID LOGIC CIRCUIT, SAID TEST CIRCUIT COMPRISING: A PLURALITY OF INPUT LEADS EXTENDING FROM SAID MEMORY TO SAID LOGIC CIRCUIT FOR SUPPLYING SAID DATA THERETO; DATA-MODIFYING MEANS CONNECTED TO SAID INPUT LEADS FOR ALTERING THE OPERATION OF SAID LOGIC CIRCUIT TO GENERATE A FUNCTION F (A,B) REPRESENTING THE BOOLEAN INVERSION OF F(A, B) WHEREBY SAID BINARY DIGIT S IS CONVERTED INTO ITS COMPLEMENT S;
Claim 2
Dependent Claim
122 words
IN A DATA-PROCESSING SYSTEM PROVIDED WITH A MEMORY FOR THE STORAGE OF A SET OF INPUT DATA INCLUDING AT LEAST TWO BINARY INFORMATION SIGNALS A, B AND A LOGIC CIRCUIT FOR THE CONVERSION OF A COMBINATION OF SAID SIGNALS INTO A SINGLE BINARY DIGT S=F(A,B) THE COMBINATION THEREWITH OF A TEST CIRCUIT FOR DETERMINING THE CORRECT PERFORMANCE OF SAID LOGIC CIRCUIT, SAID TEST CIRCUIT COMPRISING: A PLURALITY OF INPUT LEADS EXTENDING FROM SAID MEMORY TO SAID LOGIC CIRCUIT FOR SUPPLYING SAID DATA THERETO; DATA-MODIFYING MEANS CONNECTED TO SAID INPUT LEADS FOR ALTERING THE OPERATION OF SAID LOGIC CIRCUIT TO GENERATE A FUNCTION F (A,B) REPRESENTING THE BOOLEAN INVERSION OF F(A, B) WHEREBY SAID BINARY DIGIT S IS CONVERTED INTO ITS COMPLEMENT S;
References Cited (Backward Citations)
US3237157A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |