The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 1992
Filed:
Oct. 29, 1990
Neil H MacLean, Jr, Tucson, AZ (US);
Mayank R Patel, Tucson, AZ (US);
Richard A Ripberger, Tucson, AZ (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Format compatibility between arithmetic binary compression coding devices used in a magnetic tape drive can be retained even though different numbers of compression/decompression devices are required to attain a higher throughput through the system. Each device must process the data directed to it in a known maximum amount of time. Each compaction processor contains a selected number of statistic tables for each compaction processors. Eight compaction processors are selected with the possibility of two statistic tables in each. Thus format compability can be retained using four compaction processor with two statistic tables in each or double the throughput by using eight compaction processors with one statistic table in each encoder/decoder. Data compacted on a magnetic tape using either speed compaction can be decoded by either tape drive and compatibility is insured.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile