US3436738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plural emitter type active element memory
Assignee: Texas Instruments Inc
•
Filing: 1966-06-28
•
Granted: 1969-04-01
•
Expires: 1986-06-28
Abstract
No abstract record available.
Inventors
- 👤 Robert C Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:56
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/34; G11C11/40; G11C11/41; G11C11/411; G11C11/4116
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
IN A MOMORY SYSTEM, THE COMBINATION OF: A PLURALITY OF BINARY STORAGE MEANS EACH COMPRISED OF FIRST AND SECOND TRANSISTOR MEANS THE COLLECTORS OF WHICH ARE CONNECTABLE TO A VOLTAGE SUPPLY AND THE BASES AND COLLECTORS OF WHICH ARE CROSS-COUPLED TO PROVIDE REGENERATIVE SWITCHING, EACH TRANSISTOR MEANS HAVING AT LEAST ONE ADDRESS EMITTER AND A WRITEREAD EMITTER, ADDRESS CIRCUIT MEANS FOR SELECTIVELY STOPPING THE FLOW OF CURRENT THROUGH ALL THE ADDRESS EMITTERS OF A SELECTED BINARY STORAGE MEANS TO ENABLE THE BINARY STORAGE MEANS, AND WIRE-READ CIRCUIT MEANS INTERCONNECTING ALL OF THE INTERCONNECTING ALL OF THE WRITE-READ EMITTERS OF THE SECOND TRANSISTOR MEANS FOR SELECTIVELY ESTABLISHING A VOLTAGE DIFFERENTIAL BETWEEN THE WRITE-READ EMITTERS OF THE FIRST TRANSISTOR MEANS AND THE WIRE-READ EMITTERS OF THE SECOND TRANSISTOR MEANS OF THE ENABLED BINARY STORAGE MEANS TO SWITCH ONE OF THE TRANSISTOR MEANS OF THE BINARY STORAGE MEANS "ON" AND THE OTHER "OFF", AND FOR DETECTING THE PRESENCE OR ABSENCE OF CURRENT THROUGH ONE OF THE WRITE-READ EMITTERS OF THE ENABLED BINARY STORAGE MEANS.
Claim 2
Dependent Claim
171 words
IN A MOMORY SYSTEM, THE COMBINATION OF: A PLURALITY OF BINARY STORAGE MEANS EACH COMPRISED OF FIRST AND SECOND TRANSISTOR MEANS THE COLLECTORS OF WHICH ARE CONNECTABLE TO A VOLTAGE SUPPLY AND THE BASES AND COLLECTORS OF WHICH ARE CROSS-COUPLED TO PROVIDE REGENERATIVE SWITCHING, EACH TRANSISTOR MEANS HAVING AT LEAST ONE ADDRESS EMITTER AND A WRITEREAD EMITTER, ADDRESS CIRCUIT MEANS FOR SELECTIVELY STOPPING THE FLOW OF CURRENT THROUGH ALL THE ADDRESS EMITTERS OF A SELECTED BINARY STORAGE MEANS TO ENABLE THE BINARY STORAGE MEANS, AND WIRE-READ CIRCUIT MEANS INTERCONNECTING ALL OF THE INTERCONNECTING ALL OF THE WRITE-READ EMITTERS OF THE SECOND TRANSISTOR MEANS FOR SELECTIVELY ESTABLISHING A VOLTAGE DIFFERENTIAL BETWEEN THE WRITE-READ EMITTERS OF THE FIRST TRANSISTOR MEANS AND THE WIRE-READ EMITTERS OF THE SECOND TRANSISTOR MEANS OF THE ENABLED BINARY STORAGE MEANS TO SWITCH ONE OF THE TRANSISTOR MEANS OF THE BINARY STORAGE MEANS "ON" AND THE OTHER "OFF", AND FOR DETECTING THE PRESENCE OR ABSENCE OF CURRENT THROUGH ONE OF THE WRITE-READ EMITTERS OF THE ENABLED BINARY STORAGE MEANS.
References Cited (Backward Citations)
US3177374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |