US3336581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Addressing matrix for disk memories
Assignee: Unisys Corp
•
Filing: 1964-07-13
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Granted: 1967-08-15
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Expires: 1984-07-13
Abstract
No abstract record available.
Inventors
- 👤 Arnold J Jorgensen
- 👤 Lorrin O Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:51
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/02; G11B15/12; G11B15/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
AN ADDRESSING MATRIX COMPRISING: A PLURALITY OF CROSS POINTS DEFINED BY A PLURALITY OF ROW CONDUCTORS AND A PLURALITY OF COLUMN CONDUCTORS; A SOURCE OF VOLTAGE; A ROW SELECT CIRCUIT CONNECTED BETWEEN SAID PLURALITY OF ROW CONDUCTORS AND SAID VOLTAGE SOURCE AND OPERATIVE FOR APPLYING A VOLTAGE FROM SAID SOURCE TO ONE OF SAID ACROSS POINTS; A SINK CIRCUIT INDIVIDUAL TO EACH COLUMN CONDUCTOR FOR RECEIVING A FIXED AMOUNT OF CONSTANT CURRENT; MEANS CONNECTING SAID SINK CIRCUIT TO ONE COLUMN CONDUCTOR ASSOCIATED WITH A CROSS POINT TO BE SELECTED FOR COMPLETING A PATH FOR ONE PORTION OF SAID FIXED CURRENT AMOUNT FROM SAID VOLTAGE SOURCE THROUGH A SELECTED ONE OF SAID CROSS POINTS; A MEMORY STORE POSITIONED TO INDUCE A RECOVERABLE SIGNAL IN A SELECTED POINT; SIGNAL TRANSMISSION MEANS CONNECTED BETWEEN A SELECTED CROSS POINT AND SAID CONSTANT CURRENT SINK CIRCUIT; MEANS ISOLATING SAID TRANSMISSION MEANS FROM SIGNALS INDUCED IN SAID SELECTED CROSS POINT; AND MEANS FOR OVERCOMING SAID ISOLATING MEANS AND COMPLETING A RECOVERY PATH FOR SIGNALS INDUCED FROM SAID
Claim 2
Dependent Claim
171 words
AN ADDRESSING MATRIX COMPRISING: A PLURALITY OF CROSS POINTS DEFINED BY A PLURALITY OF ROW CONDUCTORS AND A PLURALITY OF COLUMN CONDUCTORS; A SOURCE OF VOLTAGE; A ROW SELECT CIRCUIT CONNECTED BETWEEN SAID PLURALITY OF ROW CONDUCTORS AND SAID VOLTAGE SOURCE AND OPERATIVE FOR APPLYING A VOLTAGE FROM SAID SOURCE TO ONE OF SAID ACROSS POINTS; A SINK CIRCUIT INDIVIDUAL TO EACH COLUMN CONDUCTOR FOR RECEIVING A FIXED AMOUNT OF CONSTANT CURRENT; MEANS CONNECTING SAID SINK CIRCUIT TO ONE COLUMN CONDUCTOR ASSOCIATED WITH A CROSS POINT TO BE SELECTED FOR COMPLETING A PATH FOR ONE PORTION OF SAID FIXED CURRENT AMOUNT FROM SAID VOLTAGE SOURCE THROUGH A SELECTED ONE OF SAID CROSS POINTS; A MEMORY STORE POSITIONED TO INDUCE A RECOVERABLE SIGNAL IN A SELECTED POINT; SIGNAL TRANSMISSION MEANS CONNECTED BETWEEN A SELECTED CROSS POINT AND SAID CONSTANT CURRENT SINK CIRCUIT; MEANS ISOLATING SAID TRANSMISSION MEANS FROM SIGNALS INDUCED IN SAID SELECTED CROSS POINT; AND MEANS FOR OVERCOMING SAID ISOLATING MEANS AND COMPLETING A RECOVERY PATH FOR SIGNALS INDUCED FROM SAID
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |