US3417377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shift and buffer circuitry
Assignee: Unisys Corp
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Filing: 1966-09-13
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Granted: 1968-12-17
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Expires: 1986-09-13
Abstract
No abstract record available.
Inventors
- 👤 Charles A Vietor
- 👤 Norman S Blessum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:39
CPC Classifications
G; G06; G06F; G06F13/00; G06F13/38; G11; G11C; G11C19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A DIGITAL DATA PROCESSING SYSTEM COMPRISING: DIGITAL DATA STORAGE MEDIA; A PLURALITY OF SHIFT REGISTERS; EACH OF THE SHIFT REGISTERS BEING COUPLED TO THE STORAGE MEDIA BY A TRANSMISSION MEDIA CHANNEL; MEANS FOR PRESENTING CLOCK SIGNALS TO THE SHIFT REGISTERS OVER THE TRANSMISSION CHANNELS, THE CLOCK SIGNALS PRESENTED OVER EACH CHANNEL BEING ASYNCHRONOUS WITH THE CLOCK SIGNALS PRESENTED OVER THE REMAINING CHANNELS; MEANS FOR SERIALLY TRANSMITTING INFORMATION SIGNALS BETWEEN THE STORAGE MEDIA AND THE SHIFT REGISTERS, OVER THE CHANNELS ASSOCIATED WITH THE RESPECTIVE SHIFT REGISTERS, RESPONSIVE TO THE CLOCK SIGNALS PRESENTED TO THE RESPECTIVE SHIFT REGISTERS; A REMOTE REGISTER; CONTROL MEANS FOR DETERMINING THE COINCIDENT PRESENCE OF PARTICULAR CONDITIONS IN EACH OF THE SHIFT REGISTERS; AND MEANS RESPONSIVE TO SUCH DETERMINATION FOR EFFECTING A SIMULTANEOUS PARALLEL TRANSFER OF INFORMATION SIGNALS BETWEEN THE PLURALITY OF SHIFT REGISTERS AND THE REMOTE REGISTER.
Claim 2
Dependent Claim
140 words
A DIGITAL DATA PROCESSING SYSTEM COMPRISING: DIGITAL DATA STORAGE MEDIA; A PLURALITY OF SHIFT REGISTERS; EACH OF THE SHIFT REGISTERS BEING COUPLED TO THE STORAGE MEDIA BY A TRANSMISSION MEDIA CHANNEL; MEANS FOR PRESENTING CLOCK SIGNALS TO THE SHIFT REGISTERS OVER THE TRANSMISSION CHANNELS, THE CLOCK SIGNALS PRESENTED OVER EACH CHANNEL BEING ASYNCHRONOUS WITH THE CLOCK SIGNALS PRESENTED OVER THE REMAINING CHANNELS; MEANS FOR SERIALLY TRANSMITTING INFORMATION SIGNALS BETWEEN THE STORAGE MEDIA AND THE SHIFT REGISTERS, OVER THE CHANNELS ASSOCIATED WITH THE RESPECTIVE SHIFT REGISTERS, RESPONSIVE TO THE CLOCK SIGNALS PRESENTED TO THE RESPECTIVE SHIFT REGISTERS; A REMOTE REGISTER; CONTROL MEANS FOR DETERMINING THE COINCIDENT PRESENCE OF PARTICULAR CONDITIONS IN EACH OF THE SHIFT REGISTERS; AND MEANS RESPONSIVE TO SUCH DETERMINATION FOR EFFECTING A SIMULTANEOUS PARALLEL TRANSFER OF INFORMATION SIGNALS BETWEEN THE PLURALITY OF SHIFT REGISTERS AND THE REMOTE 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) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |