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.

Date of Patent:
Mar. 20, 2001

Filed:

Apr. 14, 1999
Applicant:
Inventors:

Philippe Bieth, Saclay, FR;

Christian Pitot, Boulogne Billancourt, FR;

Michel Prost, Paris, FR;

Assignee:

Sextant Avionique, Velizy Villacoublay, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/00 ; H03K 3/037 ; H03K 3/12 ; H03K 3/286 ; H03K 3/356 ;
U.S. Cl.
CPC ...
H03M 1/00 ; H03K 3/037 ; H03K 3/12 ; H03K 3/286 ; H03K 3/356 ;
Abstract

The disclosure relates to the acquisition of a binary analog signal at input of a digital integrated circuit after its range of voltage variation has been matched with that acceptable by the digital integrated circuit by means of a resistive divider bridge. It is usual to define the architecture of an ASIC digital integrated circuit on the basis of libraries of pre-characterized cells. The disclosed device is designed to increase the possibilities of choice open to the integrated circuit designer, in enabling him to one pre-characterized cell of a Schmitt trigger for its top switching threshold and another for its bottom switching threshold. It consists of a circuit comprising, at input, a bank of Schmitt triggers of different types, followed by a discrete-rendering logic circuit deducing the logic state of the binary input analog signal of the combination of the output states of the input Schmitt triggers.


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