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:
May. 26, 1998
Filed:
Aug. 19, 1996
Christopher J Sanzo, Cranston, RI (US);
Cherry SemiConductor Corporation, East Greenwich, RI (US);
Abstract
A latchable comparator including a comparator and a circuit having a reset input. When the comparator produces a first state, it is latched when the reset input is in the non-reset state. In this state, the comparator receives a comparison signal having a high or low value and a latch signal being outside the range of voltages extending between the low and high values. A reset signal causes the latch signal to be replaced by a comparator reference signal. Further disclosed is a latchable comparator including a comparator and a flip-flop. The comparator has a ramp input, a control input, a first reference input and a second reference input. The flip-flop provides latch signals to each of the first and second reference inputs when its reset input is in the non-reset state and said comparator is generating a first state and maintains the latch signals until a reset signal is received.