Associative file processing method and apparatus

Boots – shoes – and leggings

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G06F 1538

Patent

active

044647182

ABSTRACT:
A method and apparatus for performing data base searches in which the host processor and main memory are free for other processing tasks between the time that the host processor requests the search until the search results are reported back to the host processor. To commence the search, an input/output controller communicates from the host processor to a record scan circuit values of a skip length, a key length and a data length. While data records are received serially from disk files, within each data record, a length of data equal to the specified skip length is initially skipped. Following this, a search argument is compared with a length of data specified by the key length value. This comparison operation is alternated with skipping of data specified by the data length value until the end of the record is reached or until a specified number of comparisons has taken place. The data record is stored as it is received from the files. If a successful comparison is found within a data record, either the entire data record or a specified portion thereof can be read back through the controller to the host processor.

REFERENCES:
patent: 3243783 (1966-03-01), Rabenda et al.
patent: 3350694 (1967-10-01), Kusnick et al.
patent: 3408631 (1968-10-01), Evans et al.
patent: 3629860 (1971-12-01), Capozzi
patent: 3729712 (1973-04-01), Glassman
patent: 3848235 (1974-11-01), Lewis et al.
patent: 4038642 (1977-07-01), Bouknecht et al.
patent: 4246637 (1981-01-01), Brown et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Associative file processing method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Associative file processing method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Associative file processing method and apparatus will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-605846

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.