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:
May. 14, 2019

Filed:

Jul. 11, 2017
Applicant:

Nxp B.v., Eindhoven, NL;

Inventors:

Jingfeng Ding, Gratkorn, AT;

Gernot Hueber, Gratkorn, AT;

Stefan Mendel, Gratkorn, AT;

Assignee:

NXP B.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 3/02 (2006.01); H03G 1/00 (2006.01); H03L 7/08 (2006.01); H04B 5/00 (2006.01); H04L 25/02 (2006.01); H04W 88/02 (2009.01);
U.S. Cl.
CPC ...
H04B 5/0025 (2013.01); G05F 3/02 (2013.01); H03G 1/0035 (2013.01); H03L 7/0807 (2013.01); H04L 25/0272 (2013.01); H04L 25/0292 (2013.01); H03G 2201/106 (2013.01); H04W 88/02 (2013.01);
Abstract

A contactless communication device includes a receiver unit having differential input terminals for connecting to an antenna. The receiver unit is coupled to a transmitting device and receives an RF signal transmitted by the transmitting device. A first comparator is adapted to generate a first comparator output signal indicative of a relationship between a voltage at a positive input terminal of the receiver unit and a first reference voltage. A second comparator is adapted to generate a second comparator output signal indicative of a relationship between a voltage at a negative input terminal of the receiver unit and a second reference voltage. A first voltage regulation circuit is adapted to regulate the voltage at the positive input terminal in response to the first comparator output signal. A second voltage regulation circuit is adapted to regulate the voltage at the negative input terminal in response to the second comparator output signal.


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