US4491914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Initial program load system
Assignee: Mitsubishi Electric Corp
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Filing: 1982-11-30
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Granted: 1985-01-01
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Expires: 2002-11-30
Abstract
Abstract This invention provides an initial program load system wherein, even when one IPL device has gone wrong, other IPL devices are automatically operated in succession instead of the faulty IPL device, whereby the automatic restoration of a whole system including the IPL system is prevented from being delayed by the fault of the IPL device.
Inventors
- 👤 Jiro Sujaku
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:01
CPC Classifications
G; G06; G06F; G06F13/00; G06F9/00; G06F9/06; G06F9/44; G06F9/4401; G06F9/4406; G06F9/4408; G06F11/00; G06F11/07; G06F11/14; G06F11/1402; G06F11/1415; G06F11/1417
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
134 words
An initial program load system comprising the first load step of starting automatically under a predetermined condition and loading a computer with an initial program from a first device among a plurality of nonvolatile memories each storing the initial program, the second load step of loading the computer with the initial program from a second device among said plurality of nonvolatile memories when any fault has been detected in said first load step or when the load operation does not end within a predetermined period of time, and the step of loading the computer with the initial program by successively using remaining devices among said plurality of nonvolatile memories, when any fault has been detected in said second load step or when the load operation does not end within a predetermined period of time.
Claim 2
Dependent Claim
134 words
An initial program load system comprising the first load step of starting automatically under a predetermined condition and loading a computer with an initial program from a first device among a plurality of nonvolatile memories each storing the initial program, the second load step of loading the computer with the initial program from a second device among said plurality of nonvolatile memories when any fault has been detected in said first load step or when the load operation does not end within a predetermined period of time, and the step of loading the computer with the initial program by successively using remaining devices among said plurality of nonvolatile memories, when any fault has been detected in said second load step or when the load operation does not end within a predetermined period of time.
Claim 3
Dependent Claim
26 words
An initial program load system according to claim 1 wherein said plurality of nonvolatile memories are nonvolatile storage devices each of which stores the initial program.
Claim 4
Dependent Claim
36 words
An initial program load system according to claim 1 wherein said plurality of nonvolatile memories are different memory areas of a single nonvolatile storage device, the initial program being stored in each of said memory areas.
Claim 5
Dependent Claim
153 words
An initial program load system comprising the first load step of starting automatically under a predetermined condition and loading a computer with an initial program from a first device among a plurality of nonvolatile memories each storing the initial program, the second load step of loading the computer with the initial program from a second device among said plurality of nonvolatile memories when any fault has been detected in said first load step or when the load operation does not end within a predetermined period of time, the step of loading the computer with the initial program by successively using remaining devices among said plurality of nonvolatile memories, when any fault has been detected in said second load step or when the load operation does not end within a predetermined period of time, and the step of recording that device among said nonvolatile memories which has succeeded in the initial program load operation.
Claim 6
Dependent Claim
153 words
An initial program load system comprising the first load step of starting automatically under a predetermined condition and loading a computer with an initial program from a first device among a plurality of nonvolatile memories each storing the initial program, the second load step of loading the computer with the initial program from a second device among said plurality of nonvolatile memories when any fault has been detected in said first load step or when the load operation does not end within a predetermined period of time, the step of loading the computer with the initial program by successively using remaining devices among said plurality of nonvolatile memories, when any fault has been detected in said second load step or when the load operation does not end within a predetermined period of time, and the step of recording that device among said nonvolatile memories which has succeeded in the initial program load operation.
References Cited (Backward Citations)
US4237533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-01-01 | 1988-07-02 | 1989-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-01 | 1992-07-02 | 1993-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-01 | 1996-07-02 | 1997-01-01 | $7700.00 | Window Closed / Lapsed |