US3221308A
Expired / Lapsed
US
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Memory system
Assignee: International Business Machines Corp
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Filing: 1960-12-30
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Granted: 1965-11-30
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Expires: 1980-12-30
Abstract
No abstract record available.
Inventors
- 👤 Harold E Petersen
- 👤 William L Mcdermid
- 👤 James R Kiseda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:18
CPC Classifications
H; H03; H03M; H03M1/00; G; G11; G11C; G11C15/00; H03M1/12; H03M1/1205; H03M1/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A MEMORY INTERROGATION SYSTEM COMPRISING A MEMORY STORING THE RESPECTIVE BITS OF A PLURALITY OF DATA WORDS; A REGISTER STORING THE RESPECTIVE BIT CONFIGURATIONS OF A WORD WHOSE PRESENCE IS SOUGHT AMONG THE DATA WORDS; MEANS FOR COMPARING THE CONTENTS OF SAID REGISTER WITH THE CONTENTS OF SAID MEMORY AND PRODUCING AN ANALOGUE MANIFESTATION FOR EACH WORD IN MEMORY INDICATIVE OF THE DEGREE OF MATCH OF THE WORD TO THE SOUGHT BIT CHARACTERISTICS; MEANS FOR ESTABLISHING A STANDARD ANALOGUE MANIFESTATION INDICATIVE OF ANY GIVEN DEGREE OF MATCH; AND MEANS FOR COMPARING THE WORD ANALOGUE MANIFESTATIONS WITH SAID STANDARD ANALOGUE MANIFESTA-
Claim 2
Dependent Claim
100 words
A MEMORY INTERROGATION SYSTEM COMPRISING A MEMORY STORING THE RESPECTIVE BITS OF A PLURALITY OF DATA WORDS; A REGISTER STORING THE RESPECTIVE BIT CONFIGURATIONS OF A WORD WHOSE PRESENCE IS SOUGHT AMONG THE DATA WORDS; MEANS FOR COMPARING THE CONTENTS OF SAID REGISTER WITH THE CONTENTS OF SAID MEMORY AND PRODUCING AN ANALOGUE MANIFESTATION FOR EACH WORD IN MEMORY INDICATIVE OF THE DEGREE OF MATCH OF THE WORD TO THE SOUGHT BIT CHARACTERISTICS; MEANS FOR ESTABLISHING A STANDARD ANALOGUE MANIFESTATION INDICATIVE OF ANY GIVEN DEGREE OF MATCH; AND MEANS FOR COMPARING THE WORD ANALOGUE MANIFESTATIONS WITH SAID STANDARD ANALOGUE MANIFESTA-
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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |