-
公开(公告)号：US20230065694A1
公开(公告)日：2023-03-02
申请号：US17818162
申请日：2022-08-08
Applicant: NXP B.V.
Inventor： Markus Wobak , Thomas Spiss , Abu Syed Firoz Ismail
IPC: H04W4/024 , H04B17/318 , H04W4/02 , G06Q20/32
Abstract: Described is a method for guiding a user for positioning a first RFID-enabled device relative to a second RFID-enabled device for allowing a robust RFID communication between the two RFID-enabled devices. The method includes placing the first RFID-enabled device to a first position relative to the second RFID-enabled device; receiving, by the first RFID-enabled device, when being located at the first position, a first RFID signal transmitted by the second RFID-enabled device; measuring, by the first RFID-enabled device, a first signal strength of the first RFID signal; placing the first RFID-enabled device to a second position relative to the second RFID-enabled device; receiving, by the first RFID-enabled device, when being located at the second position, a second RFID signal transmitted by the second RFID-enabled device; measuring, by the first RFID-enabled device, a second signal strength of the first RFID signal; determining, based on the first signal strength and on the second signal strength, a movement indication for a movement of the first RFID-enabled device towards a target position, at which there is expected a target RF coupling strength between the two RFID-enabled devices, which is stronger than a first RF coupling strength being associated with the first position and a second RF coupling strength being associated with the second position; and (h) providing the determined movement indication to the user of the first RFID-enabled device. In other embodiments, an RFID communication system and device are provided.
-
公开(公告)号：US20220116076A1
公开(公告)日：2022-04-14
申请号：US17447956
申请日：2021-09-17
Applicant: NXP B.V.
Inventor： Thomas Spiss , Abu Syed Firoz Ismail , Markus Wobak
Abstract: In accordance with a first aspect of the present disclosure, a near field communication (NFC) device is provided, comprising: a communication unit configured to be communicatively coupled to an NFC reader; a processing unit configured to use a plurality of emulated cards for executing one or more applications; a profile determination unit configured to determine a polling profile of said NFC reader; and a card selection unit configured to select a specific one of said emulated cards for use by the processing unit in dependence on the polling profile determined by the profile determination unit. In accordance with a second aspect of the present disclosure, a corresponding method of operating a near field communication (NFC) device is conceived. In accordance with a third aspect of the present disclosure, a corresponding computer program is provided.
-
公开(公告)号：US11037435B2
公开(公告)日：2021-06-15
申请号：US16687491
申请日：2019-11-18
Applicant: NXP B.V.
Inventor： Markus Wobak , Stefan Tretnjak
Abstract: A communication device includes a main controller configured to control an RF communication of the communication device, and an antenna coupled to the main controller and driven by the main controller with modulated carrier signal. The communication device includes a detector coupled to the main controller and configured to detect a presence of an external communication device and to initiate a wake-up of the main controller in response to the detection. The communication device further includes one or more temperature sensors coupled to the detector and configured to detect temperature information of external or nearby circuits of the communication device. The detector is configured not to initiate the wake-up of the main controller if a difference between a first temperature measurement and a second temperature measurement is above a first temperature threshold or below a second temperature threshold.
-
公开(公告)号：US10680677B2
公开(公告)日：2020-06-09
申请号：US15225759
申请日：2016-08-01
Applicant: NXP B.V.
Inventor： Markus Wobak , Leonhard Kormann , Juergen Schroeder
IPC: H04B5/00
Abstract: The present invention provides for a system that makes use of a system power supply enable switch controlled by a near field communications (NFC) frontend with energy harvesting. In one embodiment, RF power in the 13.56 MHz band generated by a NFC counterpart (such as a mobile phone) is detected by the energy harvesting unit being part of the battery-unpowered NFC communication device. After activation, the system can perform actions required to communicate to the presented device (i.e., the NFC counterpart). Later, the system can switch itself into the unpowered state again. In another embodiment, this feature can also be used to control an NFC protection circuitry very quickly after the NFC device is exposed to an external HF (high frequency) field.
-
公开(公告)号：US12255700B2
公开(公告)日：2025-03-18
申请号：US17974247
申请日：2022-10-26
Applicant: NXP B.V.
Inventor： Mark Feichtinger , Johannes Stahl , Ulrich Andreas Muehlmann , Markus Wobak
Abstract: A system includes a signal processing unit including an antenna configured to receive a radio frequency signal as a received radio frequency signal, and a baseband amplifier coupled to the antenna. The system includes a processor configured to cause the communication unit to stop generating a radio frequency polling signal, set an amplification gain of the baseband amplifier to a first gain value, periodically record, at a sample rate, an indication of a magnitude of the amplified radio frequency signal to generate a plurality of sample values, at a predetermined time interval after the communication unit stopped generating the radio frequency polling signal, set the amplification gain of the baseband amplifier to a second gain value, and transmit the plurality of sample values to a classifier module to determine whether the radio frequency signal is received from a near-field communication-enabled device.
-
Patent Agency Ranking
公开(公告)号：US12119893B2
公开(公告)日：2024-10-15
申请号：US17653136
申请日：2022-03-02
Applicant: NXP B.V.
Inventor： Thomas Spiss , Markus Wobak , Abu Syed Firoz Ismail
Abstract: In one embodiment, a near field communication (NFC) device is provided, comprising: a communication unit configured to be communicatively coupled to an NFC reader; a processing unit configured to use a plurality of emulated cards for executing one or more applications; a profile determination unit configured to determine a polling profile of said NFC reader, wherein the polling profile represents a sequence of predefined radio frequency (RF) transmission events, and wherein the profile determination unit is configured to determine said polling profile by comparing a detected sequence of RF transmission events with one or more predetermined sequences; a card selection unit configured to select a specific one of said emulated cards for use by the processing unit in dependence on the polling profile determined by the profile determination unit. In another embodiment, a corresponding method of operating an NFC device is conceived. In another embodiment, a computer program is provided for carrying out a method of the kind set forth.
-
公开(公告)号：US11757491B2
公开(公告)日：2023-09-12
申请号：US17647285
申请日：2022-01-06
Applicant: NXP B.V.
Inventor： Markus Wobak , Johannes Stahl , Ulrich Andreas Muehlmann
CPC classification number: H04B5/0031 , H04B1/408 , H04B1/525 , H04B5/0043 , H04B5/0062
Abstract: In accordance with a first aspect, a communication device is provided, comprising: a transmitter configured to transmit one or more radio frequency signal pulses to an external communication device; a receiver configured to receive one or more response signals in response to the radio frequency signal pulses transmitted by the transmitter; a signal analyzer configured to detect one or more characteristics of the response signals, to compare the detected characteristics with predefined reference characteristics and to generate an output indicative of a result of comparing the detected characteristics with the predefined reference characteristics; a processing unit configured to determine at least one category to which the external communication device belongs based on the output generated by the signal analyzer. In accordance with a second aspect, a corresponding method of operating a communication device is conceived. In accordance with a third aspect, a corresponding computer program is provided.
-
公开(公告)号：US20220321173A1
公开(公告)日：2022-10-06
申请号：US17653136
申请日：2022-03-02
Applicant: NXP B.V.
Inventor： Thomas Spiss , Markus Wobak , Abu Syed Firoz Ismail
IPC: H04B5/00
Abstract: In one embodiment, a near field communication (NFC) device is provided, comprising: a communication unit configured to be communicatively coupled to an NFC reader; a processing unit configured to use a plurality of emulated cards for executing one or more applications; a profile determination unit configured to determine a polling profile of said NFC reader, wherein the polling profile represents a sequence of predefined radio frequency (RF) transmission events, and wherein the profile determination unit is configured to determine said polling profile by comparing a detected sequence of RF transmission events with one or more predetermined sequences; a card selection unit configured to select a specific one of said emulated cards for use by the processing unit in dependence on the polling profile determined by the profile determination unit. In another embodiment, a corresponding method of operating an NFC device is conceived. In another embodiment, a computer program is provided for carrying out a method of the kind set forth.
-
公开(公告)号：US11411611B2
公开(公告)日：2022-08-09
申请号：US17158081
申请日：2021-01-26
Applicant: NXP B.V.
Inventor： Markus Wobak , Ulrich Neffe
Abstract: In accordance with a first aspect of the present disclosure, a communication device is provided, comprising: a first antenna configured to receive and transmit a first set of NFC signals, wherein said first set of NFC signals relates to NFC transactions; a second antenna configured to receive and transmit a second set of NFC signals, wherein said second set of NFC signals relates to wireless charging operations; a controller; and an antenna selection unit configured to select the first antenna or the second antenna in response to a selection signal received from said controller. In accordance with a second aspect of the present disclosure, a corresponding method for operating a communication device is conceived.
-
公开(公告)号：US20210250064A1
公开(公告)日：2021-08-12
申请号：US17158081
申请日：2021-01-26
Applicant: NXP B.V.
Inventor： Markus Wobak , Ulrich Neffe
IPC: H04B5/00
Abstract: In accordance with a first aspect of the present disclosure, a communication device is provided, comprising: a first antenna configured to receive and transmit a first set of NFC signals, wherein said first set of NFC signals relates to NFC transactions; a second antenna configured to receive and transmit a second set of NFC signals, wherein said second set of NFC signals relates to wireless charging operations; a controller; and an antenna selection unit configured to select the first antenna or the second antenna in response to a selection signal received from said controller. In accordance with a second aspect of the present disclosure, a corresponding method for operating a communication device is conceived.
-
-
-
-
-
-
-
-
-
Search Results
33
records
(took 0.023 seconds)
