US3331055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data communication system with matrix selection of line terminals
Assignee: Unisys Corp
•
Filing: 1964-06-01
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Granted: 1967-07-11
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Expires: 1984-06-01
Abstract
No abstract record available.
Inventors
- 👤 Allen D Betz
- 👤 Wallace E Weismantel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:52
CPC Classifications
H; H04; H04L; H04L25/00; H04L25/38; H04L25/40; H04L25/45; G; G06; G06F; G06F13/00; G06F13/10; G06F13/12; G06F13/14; G06F13/20; G06F13/22; G06F13/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A DATA TRANSFER SYSTEM COMPRISING: A PLURALITY OF SERIAL DATA WORD INPUT SOURCES, A PLURALITY OF COMMUNICATION LINE TERMINALS ARRANGED ELECTRICALLY IN A MATRIX OF ROWS AND COLUMNS AND CONNECTED TO SAID SOURCES FOR RECEIVING SAID SERIAL DATA WORD INPUTS, SAID ROWS AND COLUMNS BEING ARRANGED IN PREFERENTIAL PRIORITY ORDER, MEANS IN EACH TERMINAL FOR GENERATING A SERVICE REQUEST SIGNAL WHEN A DATA WORD IS RECEIVED, MEANS RESPONSIVE TO SAID REQUEST SIGNAL FOR SELECTING THE HIGHEST PRIORITY TERMINAL REQUESTING SERVICE, SAID SELECTING MEANS INCLUDING MEANS FOR SELECTING THE HIGHEST PRORITY ROW IN WHICH TERMINALS ARE REQUESTING SERVICE AND INHIBITING ONLY ALL LOWER PRIORITY ROWS AND MEANS FOR SELECTING THE HIGHEST PRIORITY COLUMN IN WHICH TERMINALS ARE REQUESTING SERVICE AND INHIBITING ONLY ALL LOWER PRIORITY CLOUMNS, AND MEANS CONNECTED TO SAID TERMINALS FOR ACCEPTING THE DATA WORD FROM THE TERMINAL COMMON TO BOTH THE SELECTED ROW AND THE SELECTED COLUMN.
Claim 2
Dependent Claim
149 words
A DATA TRANSFER SYSTEM COMPRISING: A PLURALITY OF SERIAL DATA WORD INPUT SOURCES, A PLURALITY OF COMMUNICATION LINE TERMINALS ARRANGED ELECTRICALLY IN A MATRIX OF ROWS AND COLUMNS AND CONNECTED TO SAID SOURCES FOR RECEIVING SAID SERIAL DATA WORD INPUTS, SAID ROWS AND COLUMNS BEING ARRANGED IN PREFERENTIAL PRIORITY ORDER, MEANS IN EACH TERMINAL FOR GENERATING A SERVICE REQUEST SIGNAL WHEN A DATA WORD IS RECEIVED, MEANS RESPONSIVE TO SAID REQUEST SIGNAL FOR SELECTING THE HIGHEST PRIORITY TERMINAL REQUESTING SERVICE, SAID SELECTING MEANS INCLUDING MEANS FOR SELECTING THE HIGHEST PRORITY ROW IN WHICH TERMINALS ARE REQUESTING SERVICE AND INHIBITING ONLY ALL LOWER PRIORITY ROWS AND MEANS FOR SELECTING THE HIGHEST PRIORITY COLUMN IN WHICH TERMINALS ARE REQUESTING SERVICE AND INHIBITING ONLY ALL LOWER PRIORITY CLOUMNS, AND MEANS CONNECTED TO SAID TERMINALS FOR ACCEPTING THE DATA WORD FROM THE TERMINAL COMMON TO BOTH THE SELECTED ROW AND THE SELECTED COLUMN.
References Cited (Backward Citations)
US2992416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |