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Patent Agency Ranking
公开(公告)号：US20250068863A1
公开(公告)日：2025-02-27
申请号：US18784988
申请日：2024-07-26
Applicant: NXP B.V.
Inventor： Reinhard Meindl , Peter Thüringer
IPC: G06K7/10 , H04L9/40 , H04W12/08 , H04W12/122
Abstract: The disclosure relates to performing a proximity check to determine whether a transponder device is in proximity of a reader device. In an example embodiment, a method of performing a proximity check to determine whether a transponder device (220) is in proximity of a reader device (210) comprises: transmitting a command (231, 401, 507) from the reader device (210) to the transponder device (210), the command (231, 401, 507) including a request for a measured response time for a number n of previous command-response exchanges (503-506) stored by the transponder device (220); in response to receiving the command (231, 401, 507) at the transponder device (220), transmitting a response (402, 508) to the reader device (210), the response (402, 508) including a measured response time (4031-n) stored by the transponder device (220) for the previous n command-response exchanges (503-506); and determining whether a predetermined criterion for the proximity check is fulfilled by comparing a measured response time stored by the reader device (210) with the measured response time transmitted by the transponder device (220) in the response (402).
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2.发明公开公开(公告)号：US20230246564A1
公开(公告)日：2023-08-03
申请号：US17649215
申请日：2022-01-28
Applicant: NXP B.V.
Inventor： Daniel Lopez-Diaz , Peter Thüringer , Pierluigi Cavallini , Hubert Watzinger
Abstract: An electronic circuit is provided. The electronic circuit includes a full-bridge rectifier, a spurious tone detection circuit, and a controller. The rectifier circuit has a plurality of switching elements and first and second radio frequency (RF) terminals. The spurious tone detection circuit has a non-linear circuit element and is coupled between the first RF terminal and a first reference terminal. The spurious tone detection circuit provides a non-zero direct current (DC) voltage in response to detecting harmonic tones at the first RF terminal of the full-bridge rectifier circuit. The controller is coupled to the plurality of switching elements. The controller is for controlling the operation of the plurality of switching elements based at least in part on detecting the harmonic tones. In one embodiment, the electronic circuit may be a wireless charging receiver. In another embodiment, a method for detecting harmonic tones in the electronic device is provided.
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公开(公告)号：US20210271832A1
公开(公告)日：2021-09-02
申请号：US17168246
申请日：2021-02-05
Applicant: NXP B.V.
Inventor： Martin FELDHOFER , Franz Amtmann , Peter Thüringer
Abstract: In accordance with a first aspect of the present disclosure, a radio frequency identification (RFID) device is provided, comprising a first power domain, a second power domain, a first processing unit, and a second processing unit, wherein the first processing unit is configured to execute one or more first operations and the second processing unit is configured to execute one or more second operations, wherein the first operations output intermediate data which are used as input for the second operations, and wherein the first processing unit is configured to operate in the first power domain and the second processing unit is configured to operate in the second power domain, said first power domain having a larger amount of available power than the second power domain. In accordance with further aspects of the present disclosure, a corresponding method of operating a radio frequency identification (RFID) device is conceived, and a corresponding computer program is provided.
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公开(公告)号：US11409973B2
公开(公告)日：2022-08-09
申请号：US17168246
申请日：2021-02-05
Applicant: NXP B.V.
Inventor： Martin Feldhofer , Franz Amtmann , Peter Thüringer
Abstract: In accordance with a first aspect of the present disclosure, a radio frequency identification (RFID) device is provided, comprising a first power domain, a second power domain, a first processing unit, and a second processing unit, wherein the first processing unit is configured to execute one or more first operations and the second processing unit is configured to execute one or more second operations, wherein the first operations output intermediate data which are used as input for the second operations, and wherein the first processing unit is configured to operate in the first power domain and the second processing unit is configured to operate in the second power domain, said first power domain having a larger amount of available power than the second power domain. In accordance with further aspects of the present disclosure, a corresponding method of operating a radio frequency identification (RFID) device is conceived, and a corresponding computer program is provided.
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5.发明授权公开(公告)号：US11784578B2
公开(公告)日：2023-10-10
申请号：US17649215
申请日：2022-01-28
Applicant: NXP B.V.
Inventor： Daniel Lopez-Diaz , Peter Thüringer , Pierluigi Cavallini , Hubert Watzinger
Abstract: An electronic circuit is provided. The electronic circuit includes a full-bridge rectifier, a spurious tone detection circuit, and a controller. The rectifier circuit has a plurality of switching elements and first and second radio frequency (RF) terminals. The spurious tone detection circuit has a non-linear circuit element and is coupled between the first RF terminal and a first reference terminal. The spurious tone detection circuit provides a non-zero direct current (DC) voltage in response to detecting harmonic tones at the first RF terminal of the full-bridge rectifier circuit. The controller is coupled to the plurality of switching elements. The controller is for controlling the operation of the plurality of switching elements based at least in part on detecting the harmonic tones. In one embodiment, the electronic circuit may be a wireless charging receiver. In another embodiment, a method for detecting harmonic tones in the electronic device is provided.
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