US3772658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic memory having a page swapping capability
Assignee: United States Department of the Army
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Filing: 1971-02-05
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Granted: 1973-11-13
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Expires: 1991-02-05
Abstract
Abstract An electronic memory having a data register, an address register and an array of storage cells. Each cell includes a plurality of two-state devices. The data register is connected to one of the two-state devices in each storage cell for communication therewith. The two-state devices in each storage cell are connected in a ring so that the bits stored therein may be shifted around the ring. The address register includes a line or word address portion. The line address portion selects the group or line of storage cells which are to communicate with the data register. The page address portion selects which of the two-state devices contains the information to be either sensed or changed by the data register and shifts this information to the one twostate device in each storage cell which is connected to the data register.
Inventors
- 👤 L Sarlo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:10
CPC Classifications
G; G06; G06F; G06F12/00; G06F12/02; G06F12/08; G11; G11C; G11C11/00; G11C11/21; G11C11/34; G11C11/40; G11C11/401; G11C11/402; G11C11/4023; G11C19/00; G11C19/28; G11C19/287; G11C19/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
232 words
An electronic memory comprising: an array of storage cells; each said storage cell including a plurality of two-state device means each for storing a bit of digital data therein; each said storage cell including an interconnecting means for connecting the output of each said two-state device means to the input of a different one of each said two-state device means to form a closed ring; each said storage cell including an energizable shift means for shifting data between all said two-state device means around said closed ring via said interconnecting means; one of said two-state device means in each said storage cell of said array including an energizable data input-output means; data register means connected to each said storage cell via said energizable data input-output means for transmitting information between said data register means and said storage cells via a selected energized plurality of said energizable data input-output means; address register means including a line select means and a page select means; said line select means connected to each said storage cell for selectively energizing different pluralities of said energizable data input-output means depending on the address data stored in said address register; and said page select means connected to each said shift means for energizing said shift means to selectively shift data a variable number of steps around said closed ring depending on the address data stored in said address register.
Claim 2
Dependent Claim
232 words
An electronic memory comprising: an array of storage cells; each said storage cell including a plurality of two-state device means each for storing a bit of digital data therein; each said storage cell including an interconnecting means for connecting the output of each said two-state device means to the input of a different one of each said two-state device means to form a closed ring; each said storage cell including an energizable shift means for shifting data between all said two-state device means around said closed ring via said interconnecting means; one of said two-state device means in each said storage cell of said array including an energizable data input-output means; data register means connected to each said storage cell via said energizable data input-output means for transmitting information between said data register means and said storage cells via a selected energized plurality of said energizable data input-output means; address register means including a line select means and a page select means; said line select means connected to each said storage cell for selectively energizing different pluralities of said energizable data input-output means depending on the address data stored in said address register; and said page select means connected to each said shift means for energizing said shift means to selectively shift data a variable number of steps around said closed ring depending on the address data stored in said address register.
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) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |