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:
Apr. 25, 2023
Filed:
Jan. 04, 2021
Applicant:
Nxp B.v., Eindhoven, NL;
Inventors:
Thomas Pichler, Graz, AT;
Ivan Jesus Rebollo Pimentel, Graz, AT;
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 19/077 (2006.01); G06K 19/07 (2006.01); H02M 3/07 (2006.01);
U.S. Cl.
CPC ...
G06K 19/07773 (2013.01); G06K 19/0713 (2013.01); H02M 3/07 (2013.01);
Abstract
A ground switch is disclosed. The ground switch includes an antenna port, a pair of switching devices coupled with the antenna port and a charge pump coupled with the pair of devices and configured to turn on/off the pair of devices based on an AC input signal received through the antenna port and a DC offset voltage added to the AC input signal. The ground switch further includes a clamping circuit to clamp an output of the charge pump. The ground switch is configured to provide a stable ground to components of devices such that a radio frequency identification (RFID) device.