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:
Jun. 26, 2001
Filed:
Oct. 07, 1999
Jonathan H. Fischer, Blandon, PA (US);
Weilin Zhu, Allentown, PA (US);
Agere Systems Guardian Corp., Orlando, FL (US);
Abstract
A circuit and method for reducing a propagation delay associated with a comparator and a comparator employing the circuit or method. In one embodiment, the comparator, includes: (1) an input stage that receives a differential input signal and develops therefrom a threshold signal, (2) an output stage, coupled to the input stage, that develops a level shifted single-ended output signal as a function of the threshold signal, and (3) a speed-up circuit, associated with the input stage, that reduces a time period to develop the determinant signal thereby decreasing a propagation delay in developing the level shifted single-ended output signal from the differential input signal.