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:
Aug. 10, 1993
Filed:
Jun. 11, 1990
Dennis L Baker, Louisville, CO (US);
Robert E Dean, Boulder, CO (US);
Steven R Kemp, Lafayette, CO (US);
Storage Technology Corporation, Louisville, CO (US);
Abstract
The dual port disk drive interface circuit enables a plurality of dual port disk drives to be interconnected with a plurality of control units in a manner that is transparent to both the dual port disk drives and the control unit. The dual port disk drive interface circuit is interposed between the two channels from n control units and the dual ports of m dual port disk drives to switchably interconnect each control unit with an available dual port disk drive. The interface circuit intercepts the control signals that are generated by both the control units and the dual port disk drives and modifies these control signals to emulate the interconnection of each control unit with a dedicated dual port disk drive. The interface circuit controls the routing of data between the control unit and the available ports on the plurality of dual port disk drives to multiply the number of ports available on the dual port disk drive without modification of the control unit or the dual port disk drive.