公开(公告)号：US09960735B1

公开(公告)日：2018-05-01

申请号：US15341629

申请日：2016-11-02

Applicant: NXP B.V.

Inventor： Jingfeng Ding ,  Helmut Kranabenter ,  Gernot Hueber

IPC: G06G7/12 ,  H03D7/12 ,  G11C27/02 ,  H04B5/00

CPC classification number: H03D7/125 ,  G11C27/02 ,  G11C27/024 ,  H03D7/1441 ,  H03D7/1466 ,  H03D7/165 ,  H03D2200/0082 ,  H03D2200/0086 ,  H04B5/0025

Abstract: Embodiments of a mixer of a Near field communication (NFC) receiver device and a method for operating a mixer of an NFC receiver device are disclosed. In an embodiment, a mixer of an NFC receiver device includes an input unit from which an input signal is received, a sample and hold circuit configured to sample the input signal and to store electrical charge based on the sampled input signal in order to generate a differential output signal, a control unit configured to switch the sample and hold circuit between different operational modes based on whether the input signal is a single-ended input signal or a differential input signal, and a differential output unit from which the differential output signal is output. Other embodiments are also described.

公开(公告)号：US09935689B2

公开(公告)日：2018-04-03

申请号：US15225767

申请日：2016-08-01

Applicant: NXP B.V.

Inventor： Gernot Hueber ,  Ian Thomas Macnamara ,  Johannes Bruckbauer ,  Hubert Watzinger

IPC: H04B5/00 ,  H04B17/21 ,  H04B17/318

CPC classification number: H04B5/0056 ,  G06K7/0095 ,  H04B5/0031 ,  H04B5/0075 ,  H04B17/21 ,  H04B17/318 ,  H04L27/00

Abstract: The present invention provides for a method and system for compensating phase offset caused by a matching network and antenna of a communications device. The method comprises: generating a mapping that correlates phase offset with a characteristic parameter; measuring the characteristic parameter for the communications device; using the measured characteristic parameter and the mapping to determine a phase offset for the communications device; and using the determined phase offset to compensate for the phase offset caused by the matching network and antenna of the communications device. The present invention also provides for a method and system for measuring a phase offset caused by a matching network and antenna of a communications device.

公开(公告)号：US20180034622A1

公开(公告)日：2018-02-01

申请号：US15225782

申请日：2016-08-01

Applicant: NXP B.V.

Inventor： Gernot Hueber ,  Ian Thomas Macnamara

IPC: H04L7/04 ,  H04B17/318 ,  H04L12/741 ,  H04W4/00

CPC classification number: H04L7/04 ,  H04B5/0031 ,  H04B5/0062 ,  H04B5/0075 ,  H04B17/21 ,  H04B17/318 ,  H04L45/745 ,  H04W4/80

Abstract: The present invention provides for a method and system to compensate phase offset caused by the IC (integrated circuit) by making use of factory measurement stored as trim-data in the IC. In the final customer product, the trim-data is mapped to the actual platform environment such that the respective phase offset can be compensated.

公开(公告)号：US20180034510A1

公开(公告)日：2018-02-01

申请号：US15225767

申请日：2016-08-01

Applicant: NXP B.V.

Inventor： Gernot Hueber ,  Ian Thomas Macnamara ,  Johannes Bruckbauer ,  Hubert Watzinger

IPC: H04B5/00 ,  H04B17/318 ,  H04B17/21

CPC classification number: H04B5/0056 ,  G06K7/0095 ,  H04B5/0031 ,  H04B5/0075 ,  H04B17/21 ,  H04B17/318 ,  H04L27/00

Abstract: The present invention provides for a method and system for compensating phase offset caused by a matching network and antenna of a communications device. The method comprises: generating a mapping that correlates phase offset with a characteristic parameter; measuring the characteristic parameter for the communications device; using the measured characteristic parameter and the mapping to determine a phase offset for the communications device; and using the determined phase offset to compensate for the phase offset caused by the matching network and antenna of the communications device. The present invention also provides for a method and system for measuring a phase offset caused by a matching network and antenna of a communications device.

公开(公告)号：US20170288795A1

公开(公告)日：2017-10-05

申请号：US15087037

申请日：2016-03-31

Applicant: NXP B.V.

Inventor： Jingfeng Ding ,  Helmut Kranabenter ,  Stefan Mendel ,  Gernot Hueber ,  Josef Zipper

IPC: H04B17/318

CPC classification number: H04B17/318 ,  H03M1/181 ,  H04W52/245 ,  H04W52/52

Abstract: Embodiments of a method and a system for generating a received signal strength indicator (RSSI) value that corresponds to a radio frequency (RF) signal are disclosed. In an embodiment, a method for generating an RSSI value that corresponds to an RF signal involves obtaining an attenuation factor code in response to applying an automatic gain control (AGC) operation to the RF signal, obtaining an analog-to-digital converter (ADC) code in response to applying an ADC operation to a signal that results from the AGC operation, and combining the attenuation factor code and the ADC code to generate an RSSI value. Other embodiments are also described.

公开(公告)号：US20200187119A1

公开(公告)日：2020-06-11

申请号：US16211228

申请日：2018-12-05

Applicant: NXP B.V.

Inventor： Gernot Hueber ,  Pravin Pandurang Manerker

IPC: H04W52/02

Abstract: This specification discloses methods and devices to enable high resolution configuration of a low-power wake-up detector (LP Detector), which in turn is implemented allowing for very coarse threshold detection (i.e., the detectable threshold levels are widely spaced apart from each other) due to power consumption and design reasons. Based on this invention, the detection resolution can be enhanced from 10 mV steps to

公开(公告)号：US10680680B2

公开(公告)日：2020-06-09

申请号：US15942248

申请日：2018-03-30

Applicant: NXP B.V.

Inventor： Gernot Hueber ,  Ian Thomas Macnamara

IPC: H04B17/309 ,  H04B5/02 ,  H04B5/00 ,  H04W52/18

Abstract: This specification discloses methods and systems providing reader-mode performance enhancement for operating a device that communicates via inductive coupling. In reader-mode, Tx (transmitter) power of a reader device is maximized even though for some tags, the communication distance is limited by Rx (receiver) sensitivity. Therefore, power is wasted. Even worse, a too highly boosted Tx power demands a high Rx dynamic range and consequently a low Rx sensitivity. In turn, the communication distance may even be degraded by a too highly boosted Tx power. Therefore, in some embodiments, reader-mode performance enhancement is based on backing off Tx (transmitter) power when not needed (energy distance>communication distance) to save power and/or to relax reader-mode Rx (receiver) sensitivity requirements. In some embodiments, the backing off of Tx (transmitter) is also based on a sensor determining a geometric position/location of a reader device relative to a tag-mode device.

公开(公告)号：US10574303B1

公开(公告)日：2020-02-25

申请号：US16236306

申请日：2018-12-28

Applicant: NXP B.V.

Inventor： Gernot Hueber ,  Ian Thomas Macnamara

IPC: H04B5/00

Abstract: This specification discloses methods and devices for emulating a tag device that communicates via inductive coupling, such as a NFC (Near Field Communication) tag device. In some embodiments, this specification discloses methods and devices to use this tag device “emulation” for testing, validating, calibrating, and characterizing a reader device. In some embodiments, a tag emulation device can emulate movement of the tag emulation device relative to the reader device by changing configuration parameters of the tag emulation device and by not actually moving the tag emulation device relative to the reader device. In some embodiments, these configuration parameters changes include: changing a Tx (transmitter) voltage, changing a Tx driver impedance, changing a HF (high frequency) attenuator resistance, changing a Tx output modulation, changing a matching network tuning, changing a phase of a Tx signal versus a carrier signal from the reader device, enabling one or two Tx drivers.

公开(公告)号：US20200044754A1

公开(公告)日：2020-02-06

申请号：US16050929

申请日：2018-07-31

Applicant: NXP B.V.

Inventor： Gernot Hueber ,  Ian Thomas Macnamara

IPC: H04B17/21 ,  H04B1/00 ,  G01R31/28 ,  G06F7/48 ,  G06F7/544 ,  H03M1/10

Abstract: This specification discloses methods and systems for implementing a chip integrated scope (i.e., chip scope (CS)), which is a feature that allows a user to scope RF signals (internally and externally to the DUT (device under test)), by using the RF receive path (including amplifier, filter, ADC, DSP) to capture and store signal traces. In some embodiments, this specification discloses methods and systems to enhance the resolution and accuracy of these signal traces by using raw and correction data for gain/phase compensation of gain/phase impairments introduced in the Rx (receiver) path. In some embodiments, the correction data is generated from one or more of the following: simulation data, characterization data, production test data

公开(公告)号：US10390200B2

公开(公告)日：2019-08-20

申请号：US15383406

申请日：2016-12-19

Applicant: NXP B.V.

Inventor： Gernot Hueber ,  Johannes Bruckbauer ,  Erich Merlin

IPC: H04B5/00 ,  H04W4/80 ,  H04B17/318

Abstract: Embodiments of methods and systems for operating a communications device that communicates via inductive coupling are described. In an embodiment, a method for operating a communications device that communicates via inductive coupling involves obtaining transmission output power information related to the communications device and measuring a detuning condition based on the transmission output power information. Other embodiments are also described.