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. 31, 1985
Filed:
Jan. 28, 1983
William W Ecton, Augusta, KS (US);
NCR Corporation, Dayton, OH (US);
Abstract
To prevent a race in an asynchronous state machine branching from one state to either of two others, depending on which of two control signals arrives first, one of the signals is latched in the state just ahead of the branching state. The branching then takes place in the branching state upon arrival of the other signal but in a direction determined by the value of the latched signal. If the latched value indicates a wrong order of arrival, the machine releases the original latched value and latches an updated value of the one signal and returns to the branching state. The looping, with unlatching and relatching, continues until the latched value causes branching to take place in the proper direction.