Boots – shoes – and leggings
Patent
1992-03-04
1995-03-14
Kulik, Paul V.
Boots, shoes, and leggings
3647462, 364DIG2, 395600, G06F 1532, G06F 1540
Patent
active
053981995
ABSTRACT:
This data query apparatus consists of an application software and a circuitry for the processing of the data selection condition of the user query embodied in a host data base management system or information retrieval system. The application software translates the selection condition into the standard form which the circuitry can process. From the host system, and for each data record to be analyzed, the circuit apparatus receives the logical values taken on by the atomic conditions of the query and returns the logical value that the global selection condition takes on. This system allows the user to query the data on the basis of any truth-valued logic set up an arbitrary number of logical values, within the limits fixed by the system developer.
REFERENCES:
patent: 3827030 (1974-07-01), Seipp
patent: 4286330 (1981-08-01), Isaacson
patent: 4357678 (1982-11-01), Davis
patent: 5274788 (1993-12-01), Koike
"Dedicated Machines Take on Data-Base Management" 2328 Electronic Design, vol. 30, No. 12, Jun.
"Extending the Database Relational Model to Capture More Meaning" ACM Transactions, vol. 4, No. 4, Dec. 1979.
Sigmod Record, vol. 19, No. 1, Mar. 1990, pp. 29-35 "Four Valued Logic for Relational Database Systems".
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