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:
Dec. 20, 1988
Filed:
Sep. 26, 1986
Donald F McCarthy, Littleton, CO (US);
Bradley E Whitney, Lafayette, CO (US);
Patricia G Orban, Lakewood, CO (US);
Randy A Fout, Longmont, CO (US);
Leslie A Magor, Louisville, CO (US);
Other;
Abstract
Method and apparatus for temporarily storing multiple data records in a data processing system which includes a host computer, a cache buffer subsystem, and a magnetic tape drive subsystem. A microprocessor, acting in part as a cache manager, directs the transfer of data into and out of a memory in the cache buffer subsystem by setting up a fill address register, a drain address register, and a start of record address register. Through utilization of a CRC byte to detect errors without correction, and a stop bit to locate the end of a record, values of the registers are compared dependent upon whether there is data being filled or drained to properly manage the temporary storage of data within the memory.