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:
Sep. 09, 2025

Filed:

Dec. 15, 2023
Applicant:

Stmicroelectronics (Grenoble 2) Sas, Grenoble, FR;

Inventor:

Laurent Simony, Grenoble, FR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/24 (2006.01); H03M 1/56 (2006.01); H04N 25/772 (2023.01); H04N 25/778 (2023.01);
U.S. Cl.
CPC ...
H03K 5/2481 (2013.01); H04N 25/772 (2023.01); H04N 25/778 (2023.01); H03M 1/56 (2013.01);
Abstract

A differential comparator circuit includes a voltage amplifier of negative gain receiving an analog input signal and generating an inverted analog input signal. The analog input signal and the inverted analog input signal form differential analog input signals. A comparator input circuit includes a first capacitive divider to generate a first signal as an average of the analog input signal and a first ramp signal, and a second capacitive divider to generate a second signal as an average of the inverted analog input signal and a second ramp signal, with the first and second ramp signals being differential ramp signals. The comparator is configured to compare the first and second signals to generate a signal transition having a timing based on the input signal.


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