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:
Apr. 23, 2019

Filed:

Jun. 18, 2018
Applicant:

Infineon Technologies Ag, Neubiberg, DE;

Inventors:

Cesare Buffa, Villach, AT;

Fernando Cardes Garcia, Leganés, ES;

Luis Hernandez-Corporales, Madrid, ES;

Carlos Andres Perez Cruz, Santa Cruz del Retamar, ES;

Andres Quintero Alonso, Leganés, ES;

Andreas Wiesbauer, Poertschach, AT;

Assignee:

INFINEON TECHNOLOGIES AG, Neubiberg, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/12 (2006.01); H03M 1/14 (2006.01); H03M 1/00 (2006.01); H03M 1/46 (2006.01);
U.S. Cl.
CPC ...
H03M 1/1245 (2013.01); H03M 1/14 (2013.01); H03M 1/002 (2013.01); H03M 1/466 (2013.01);
Abstract

An analog-to-digital converter includes a ring oscillator having an input for receiving an analog signal, a coarse Gray code counter having a first input coupled to a first output of the ring oscillator and a second input for receiving a clock signal, a fine counter having first inputs coupled to secondary outputs of the ring oscillator and a second input for receiving the clock signal, a first difference generator having an input coupled to the output of the coarse counter, a second difference generator having an input coupled to the output of the fine counter, and an adder having a first input coupled to the output of the first difference generator, a second input coupled to the output of the second difference generator, and an output for providing a digital signal corresponding to the analog signal.


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