US3889239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective storage systems
Assignee: Bull SAS
•
Filing: 1973-02-13
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Granted: 1975-06-10
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Expires: 1993-02-13
Abstract
Abstract A system for the selective storing of information of any duration, including associated temporary stores, is provided. The system comprises at least two identical elements for temporary storing, each of the elements comprising a memory for optical line-at-a-time reading, and a television camera, each camera being, on one hand, arranged in front of the display panel of the associated memory for line-at-a-time reading of the information stored in said memory and, on the other hand, electrically linked to the memory of another element for writing at least one information line into said memory.
Inventors
- 👤 Johannes Jacobus Gillissen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:06
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/23; H; H04; H04N; H04N5/00; H04N5/76; H04N5/907
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
160 words
In a data storage system, the combination of: at least a pair of data storage assemblies forming a data storage loop, each assembly including a data storage member inherently possessing only a limited storage time capability and having a face at which an array of stored data is displayed, and a television camera focussed on said face optically to read selected data of said array; means connecting the television camera of one assembly to the data storage member of the other assembly for transferring said selected data read by the television camera of said one assembly to the data storage member of said other assembly; and means connecting the television camera of said other assembly to the data storage member of said one assembly for transferring said selected data back to said data storage member of said one assembly whereby periodically to re-store data in said data storage member of said one assembly within said limited storage time capability thereof.
Claim 2
Dependent Claim
160 words
In a data storage system, the combination of: at least a pair of data storage assemblies forming a data storage loop, each assembly including a data storage member inherently possessing only a limited storage time capability and having a face at which an array of stored data is displayed, and a television camera focussed on said face optically to read selected data of said array; means connecting the television camera of one assembly to the data storage member of the other assembly for transferring said selected data read by the television camera of said one assembly to the data storage member of said other assembly; and means connecting the television camera of said other assembly to the data storage member of said one assembly for transferring said selected data back to said data storage member of said one assembly whereby periodically to re-store data in said data storage member of said one assembly within said limited storage time capability thereof.
Claim 3
Dependent Claim
89 words
In a data storage system as defined in claim 1 including a plurality of further data storage assemblies in parallel with said one data storage assembly, said means first mentioned including switch means for selectively connecting said data storage member of said other assembly to any one of the television cameras of the said one and further assemblies and said means last mentioned including switch means for connecting the television camera of said other assembly to any one of the data storage members of said one and further assemblies.
Claim 4
Dependent Claim
102 words
In a data storage system as defined in claim 1 wherein said means first mentioned includes first switch means for selectively connecting said data storage member of said other assembly to the television camera of said one assembly and said means last mentioned includes second switch means for selectively connecting said television camera of said other assembly to the data storage member of said one assembly, and including comparator means conneCted through said second switch means to the television camera of said other assembly and to the television camera of said one assembly for selectively erasing data from either data storage member.
Claim 5
Dependent Claim
170 words
In a data storage system as defined in claim 1 including a first data register connected to said data storage member of said other assembly, clock means for providing synchronization between said data storage assemblies, a first address register connected to said clock means for recording the line being addressed by said camers, a second address register containing a selected address, comparator means connected to said first and second address registers for providing an output when the addresses of said first and second address registers are the same, and said means connecting the television camera of one assembly to the data storage member of the other assembly comprising switch means controlled by the output of said comparator means for connecting said television camera of said one assembly to the data storage member of said other assembly in the absence of said output of the comparator means and for loading said data register from said television camera of said one assembly in the presence of said output of the comparator means.
Claim 6
Dependent Claim
34 words
In a data storage system as defined in claim 4 including a second data register, said first and second data register being connected to transfer data from said first to said second date register.
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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) | 1978-06-09 | 1978-12-09 | 1979-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-09 | 1982-12-09 | 1983-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-09 | 1986-12-09 | 1987-06-10 | $7700.00 | Window Closed / Lapsed |