Dynamic information storage or retrieval – Information location or remote operator actuated control – Selective addressing of storage medium
Patent
1995-08-25
1997-08-12
Dinh, Tan
Dynamic information storage or retrieval
Information location or remote operator actuated control
Selective addressing of storage medium
369 34, G11B 1722
Patent
active
056573014
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to an automatic changer system or a large capacity storage system adapted for example to effect the selection, recording and reproduction of a plurality of storage media and more particularly to the modification or improvement of a program for a control of the system.
BACKGROUND ART
With automatic changer systems heretofore known in the art, when a program for a control (e.g., a positioning control for the disc transfer mechanism) of the system was modified or improved, it was necessary to change the memory storing the stored program of the system.
In addition, the automatic changer system was frequently large in weight and also it was nearly impossible for those having no technical knowledge to perform the operation of removing the outer casing of the system and changing the memory safely. As a result, it was the practice so that a technical expert went to the installation place of the system to change the memory storing the stored program of the system and thereby to modify or improve the program for effecting a control of the system.
Further, there was the necessity to acquire the data of such information (e.g., the hours of operation the number of times of operation, the error contents, the number of errors occurred, etc.,) of the system for the purpose of preventive maintenance, fault analysis, etc. In this case, it was effected by the expert by performing the necessary operations by use of an exclusive software, jigs, etc.
DISCLOSURE OF INVENTION
It is an object of the present invention to provide an automatic changer system so designed that when a control program for controlling the system is modified or improved, even an ordinary user can easily perform without any expert technical knowledge the operation of rewriting the program and acquiring the data of the system.
To accomplish the above object, an automatic changer system according to one aspect of the present invention includes an insertion/discharge unit for inserting and discharging a storage medium storing a program and data, a medium storage unit for storing a plurality of storage media, a media transfer unit for selecting one of a plurality of storage media from the insertion/discharge unit or the medium storage unit, a control unit including storage means storing a control program for controlling the selection of the storage media, and program rewriting means responsive to a program rewrite command to read in a new control program from the storage medium and replace the control program stored in the storage means with the new control program.
In accordance with the present invention, when a program rewrite command is applied, a new control program is read in from the storage medium by the program rewriting means and the Control program stored in the storage means is replaced with the new control program.
In accordance with the present invention of the above-mentioned construction, by virtue of the fact that in response to a program rewrite command the program rewriting means reads in a new control program from the storage medium and the control program stored in the storage means is replaced with the new control program, the rewriting of the control program can be easily effected without requiring any expert knowledge.
An automatic changer system according to another aspect of the present invention consists in the abovementioned system further including information recording means whereby when an intra-system stored information recording command is applied, the information stored in the storage means is written into the storage medium.
In accordance with the present invention, When an intra-system stored information recording command is applied, the information stored in the storage means is written into the storage medium by the information recording means.
In accordance with the present invention of the above-mentioned construction, by virtue of the fact that in response to the application of an intra-system stored information recording command the information stored in the storage m
REFERENCES:
patent: 5235568 (1993-08-01), Masaru
patent: 5392264 (1995-02-01), Hira
patent: 5446714 (1995-08-01), Yoshio et al.
Matsumoto Shinya
Yoshikawa Shoji
Dinh Tan
Meller Michael N.
NKK Corporation
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