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. 06, 2001
Filed:
Jan. 28, 1999
Applicant:
Inventor:
Glen E. Offord, Macungie, PA (US);
Assignee:
Lucent Technologies Inc., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 3/289 ;
U.S. Cl.
CPC ...
H03K 3/289 ;
Abstract
A flip-flop having one or more stages (e.g., a master stage and a slave stage in a master-slave flip-flop, or a single stage as in a latch), at least one stage having a driver coupled at its input and output to a feedback path with a gated inverter having embedded preset and/or clear logic. By embedding the preset/clear logic in the feedback path, the driver can be implemented using a simple inverter. Moreover, the preset and/or clear functionality can be added without adversely affecting either the setup time or the clock-to-Q propagation time of the flip-flop.