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:
Apr. 25, 1995
Filed:
May. 21, 1993
VLSI Technology, Inc., San Jose, CA (US);
Abstract
An asynchronous latch circuit characterized by a pair of D-type flip-flops and a D-type latch. Data is clocked into a first flip-flop by a system clock signal and the output of the first flip-flop is clocked into a second flip-flop by an asynchronous latch enable signal. A comparator compares the outputs of the first and second flip-flops and develops an error signal if the two are not the same. The error signal forces the output of the latch to a known condition rather than letting the output be indeterminate. In an asynchronous latch register an error signal from any one of the asynchronous latch circuits will force all of the latch circuits in the register to a known condition to eliminate race condition errors.