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:
Mar. 26, 1991
Filed:
Dec. 19, 1989
David E Cushing, Chelmsford, MA (US);
John A DeFalco, Marlboro, MA (US);
Bull HN Information Systems Inc., Billerica, MA (US);
Abstract
A synchronous latch device macrocell which includes an input gate section and a scannable latch section. Both sections are directly connected together to provide a non-inverting path for input data signals thereby eliminating the need for internal inverting buffer circuits. The non-inverting output of the latch section connects to an output pin and provides a signal representation of the state of the latch device. The output pin is externally connected through a conductor wire to either one of a pair of complementary data input pins of the input gate section. The connection made is selected as a function of which data input pin connection provides the faster loading of the latch device as viewed from the source of the signal applied to the load control pin of the input gate section.