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:
Nov. 19, 1996
Filed:
Dec. 09, 1994
Craig F Russ, Berwyn, PA (US);
Unisys Corporation, Blue Bell, PA (US);
Abstract
A plurality of buffers is provided which are shared in that each are capable of having data written to or from them by one or more user computer programs. Each of those buffers is dedicated to reading data from or writing data to a unique particular area in a storage device such as physical disk media. A first set of registers is provided for monitoring the status of each of a number of data transfers between any one of the user programs and a particular such storage location. A second set of registers is provided for monitoring the status of reads from a storage location, or writes to a storage location, via a particular one of the buffers. This system thereby keeps each user program informed of any read or write commands it has issued, while permitting a number of reads or writes between different user programs, and a single storage area served by a single shared buffer, to be accomplished in one input/output operation.