US3593299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Input-output control system for data processing apparatus
Assignee: International Business Machines Corp
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Filing: 1967-07-14
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Granted: 1971-07-13
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Expires: 1987-07-14
Abstract
Abstract An input-output system which is effectively a satellite computer that performs normal input-output functions for other data processing apparatus components, i.e., the central processing unit and peripheral input and output devices; that exercises supervisory control over the aforesaid apparatus components such as by arranging processing task queues and allocating storage space; that buffers transmissions between remote terminals and devices and the central computing units; and that controls periodic diagnostic analyses of the entire data processing apparatus.
Inventors
- 👤 Graham C Driscoll
- 👤 Edward H Sussenguth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:09
CPC Classifications
G; G06; G06F; G06F13/00; G06F13/10; G06F13/12; G06F13/124
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
192 words
An input-output control apparatus for a data processing system wherein said system includes a central processor, central processor storage, bulk storage, and a plurality of input-output devices comprising: a plurality of first units for controlling transmission of data between said central processor and said input-output devices, said first units being provided in an array to constitute respective pluralities of rows and columns of first units; a plurality of second units for controlling each of said rows and columns of said first units respectively, said second units including; means for initiating first unit sequences, said sequences being for input-output device selection, command, data transmission, and ending, means for storing data in said processor storage and bulk storage, means for fetching data from said processor storage and said bulk storage, means for controlling record search operations including means for updating addresses, means for updating counts, means for generating parity checks, means for generating redundancy checks, means for verifying parity checks, and means for verifying redundancy checks; and scanning means for causing said second units to continually scan said first units respectively controlled by them to ascertain those of said first units which require service.
Claim 2
Dependent Claim
192 words
An input-output control apparatus for a data processing system wherein said system includes a central processor, central processor storage, bulk storage, and a plurality of input-output devices comprising: a plurality of first units for controlling transmission of data between said central processor and said input-output devices, said first units being provided in an array to constitute respective pluralities of rows and columns of first units; a plurality of second units for controlling each of said rows and columns of said first units respectively, said second units including; means for initiating first unit sequences, said sequences being for input-output device selection, command, data transmission, and ending, means for storing data in said processor storage and bulk storage, means for fetching data from said processor storage and said bulk storage, means for controlling record search operations including means for updating addresses, means for updating counts, means for generating parity checks, means for generating redundancy checks, means for verifying parity checks, and means for verifying redundancy checks; and scanning means for causing said second units to continually scan said first units respectively controlled by them to ascertain those of said first units which require service.
Claim 3
Dependent Claim
76 words
An input-output control system as defined in claim 1 wherein there is further included means to control said scanning means, said last-named control means comprising: an a control component for determining whether a particular first unit requires service; a u control component for determining whether said particular first unit urgently requires service; and a p control component for determining whether the second units controlling said particular first unit are permitted to service said particular first unit.
Claim 4
Dependent Claim
45 words
An input-output control system as defined in claim 2 and further including tie-breaking means responsive to the attempt of more than one second unit to concurrently control a first unit, to thereby prevent the controlling of a first unit by more than one second unit.
Claim 5
Dependent Claim
38 words
An input-output control system as defined in claim 2 wherein there is further included means associated with said p control component to limit the scan of a second unit to those first units controlled by said second unit.
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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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |