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:
Jul. 15, 1997
Filed:
Aug. 02, 1995
Joseba Mirena Desubijana, Minneapolis, MN (US);
Wayne Alan Michaelson, Circle Pines, MN (US);
Howard Huy Tran, Woodbury, MN (US);
Unisys Corporation, Blue Bell, PA (US);
Abstract
A micro code operated microsequencer that includes a monitor, a timer, a function controller and an address controller controls the functioning of a number of operational stations which exchange address and data signals with the microsequencer over a bus. The stations have designated tasks to perform and are selectable by the controller. When the station selected performs a task that requires a read from a RAM memory, the microsequencer selects a time-out duration during which the selected station is expected to complete its assigned task which is long enough to take into account the added time needed to perform the read from memory. If the station selected performs a write task, the microsequencer selects a shorter time duration during which the selected station is expected to complete this task since no memory read is needed. If any assigned task exceeds its appropriate time-out duration, an error condition will be sensed and the microsequencer will not receive an active Continue signal from the selected stations as long as their assigned tasks remain uncompleted.