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公开(公告)号:US12068807B2
公开(公告)日:2024-08-20
申请号:US18446224
申请日:2023-08-08
Inventor: Gustavo Jose Henriques Patricio , Anton Stern
Abstract: The disclosure relates to a modified NFC framing is used by a reader and selected devices during at least a part of the communication between the reader and the selected devices. The reader and the selected devices store modification rules for modifying the frames. Devices not storing those modification rules will discard the received modified frames.
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公开(公告)号:US11770156B2
公开(公告)日:2023-09-26
申请号:US17651322
申请日:2022-02-16
Inventor: Gustavo Jose Henriques Patricio , Anton Stem
CPC classification number: H04B5/0031 , H04W4/80 , H04W48/16
Abstract: The disclosure relates to a modified NFC framing is used by a reader and selected devices during at least a part of the communication between the reader and the selected devices. The reader and the selected devices store modification rules for modifying the frames. Devices not storing those modification rules will discard the received modified frames.
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公开(公告)号:US20220263542A1
公开(公告)日:2022-08-18
申请号:US17651322
申请日:2022-02-16
Inventor: Gustavo Jose Henriques Patricio , Anton Stem
Abstract: The disclosure relates to a modified NFC framing is used by a reader and selected devices during at least a part of the communication between the reader and the selected devices. The reader and the selected devices store modification rules for modifying the frames. Devices not storing those modification rules will discard the received modified frames.
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4.
公开(公告)号:US11416692B2
公开(公告)日:2022-08-16
申请号:US17332405
申请日:2021-05-27
Applicant: STMicroelectronics Austria GmbH
Abstract: An embodiment method comprises transmitting a reader carrier signal from a contactless reader to a contactless device, receiving by the reader, a device modulated carrier signal from the device, the device modulated carrier signal having a carrier frequency, preferably turning off by the reader, the transmission of the reader carrier signal during reception of the device modulated carrier signal, and after having turned off the transmission of the reader carrier signal, determining by the reader the presence or the absence at the reader's antenna of a modulated carrier signal having at the reader's antenna the carrier frequency with a tolerance, without relying on the data content of the modulated carrier signal.
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公开(公告)号:US20230387965A1
公开(公告)日:2023-11-30
申请号:US18446224
申请日:2023-08-08
Inventor: Gustavo Jose Henriques Patricio , Anton Stern
CPC classification number: H04B5/0031 , H04W4/80 , H04W48/16
Abstract: The disclosure relates to a modified NFC framing is used by a reader and selected devices during at least a part of the communication between the reader and the selected devices. The reader and the selected devices store modification rules for modifying the frames. Devices not storing those modification rules will discard the received modified frames.
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6.
公开(公告)号:US20210374365A1
公开(公告)日:2021-12-02
申请号:US17332405
申请日:2021-05-27
Applicant: STMicroelectronics Austria GmbH
Abstract: An embodiment method comprises transmitting a reader carrier signal from a contactless reader to a contactless device, receiving by the reader, a device modulated carrier signal from the device, the device modulated carrier signal having a carrier frequency, preferably turning off by the reader, the transmission of the reader carrier signal during reception of the device modulated carrier signal, and after having turned off the transmission of the reader carrier signal, determining by the reader the presence or the absence at the reader's antenna of a modulated carrier signal having at the reader's antenna the carrier frequency with a tolerance, without relying on the data content of the modulated carrier signal.
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