US3597745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for arrangement and indexing of digital data in storage
Assignee: Kaiser Aluminum and Chemical Corp
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Filing: 1969-08-19
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Granted: 1971-08-03
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Expires: 1989-08-19
Abstract
Abstract A method of arranging digital data so that it may be most efficiently located and read out. Two levels of indices are used to locate each data record, a ten word or eighty character block of data. A single high level index tag refers to one of a plurality of secondary level index tags which, in turn, refer to the data record. The block containing the high level index tag also contains various file information.
Inventors
- 👤 Allan E Lahrson
- 👤 Timothy L Lenox
- 👤 Robert J Vannucci
- 👤 Richard C Zuchowski
- 👤 Frank E Hublou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:10
CPC Classifications
G; G06; G06F; G06F16/00; G06F16/90; G06F16/901; G06F16/9017; G06F16/902; Y; Y10; Y10S; Y10S707/00; Y10S707/99931
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
130 words
The method of arranging and indexing digital data for storage in retrievable data storage devices, comprising the steps of: storing, in a data storage device, portions of data in a plurality of blocks of data storage locations, each of said blocks comprising n storage units of fixed size; assigning each of said storage location units which contain data a reference number; grouping reference numbers corresponding to storage location units in each of the data blocks in primary level index blocks and storing each of said primary level index blocks adjacent to the block of data storage locations which the primary level block references; and, storing a secondary level index block comprising reference numbers equal to or greater than the highest reference number in each of said primary level index blocks.
Claim 2
Independent Claim
130 words
The method of arranging and indexing digital data for storage in retrievable data storage devices, comprising the steps of: storing, in a data storage device, portions of data in a plurality of blocks of data storage locations, each of said blocks comprising n storage units of fixed size; assigning each of said storage location units which contain data a reference number; grouping reference numbers corresponding to storage location units in each of the data blocks in primary level index blocks and storing each of said primary level index blocks adjacent to the block of data storage locations which the primary level block references; and, storing a secondary level index block comprising reference numbers equal to or greater than the highest reference number in each of said primary level index blocks.
Claim 3
Dependent Claim
37 words
The method of claim 1, further comprising storing a position number indicating the relative position within said data blocks of the storage location unit referenced by each of said reference numbers in the primary level index blocks.
Claim 4
Dependent Claim
21 words
The method of claim 1, further comprising: storing within said secondary level index block information descriptive of the data referenced thereby.
Claim 5
Dependent Claim
52 words
The method of claim 1, further comprising: storing a position number indicating the relative position within said data blocks of the storage location unit referenced by each of said reference numbers in the primary level index blocks; and, storing within said secondary level index block information descriptive of the data referenced thereby.
References Cited (Backward Citations)
US3366928A
Cited
US3412382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |