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公开(公告)号：US20180343037A1
公开(公告)日：2018-11-29
申请号：US15989554
申请日：2018-05-25
IPC分类号： H04B5/00
摘要： A near field communication (NFC) method includes activating an NFC device second device in response to a first electromagnetic field generated by a nearby NFC device. The NFC device generates a second electromagnetic field after being activated. The first NFC device can detect the second electromagnetic field and initiate a near field communication process.
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公开(公告)号：US11934217B2
公开(公告)日：2024-03-19
申请号：US18158170
申请日：2023-01-23
发明人： Albin Pevec , Nejc Suhadolnik , Vinko Kunc , Maksimiljan Stiglic
IPC分类号： G05F1/575
CPC分类号： G05F1/575
摘要： In accordance with an embodiment, a linear voltage regulator includes: a first transistor coupled between a first input terminal and an output terminal, the first input terminal adapted to receive a first voltage, and the output terminal adapted to provide a regulated voltage; a second transistor coupled between a second input terminal and the output terminal, the second input terminal adapted to receive a second voltage; and an amplifier of a difference between a third voltage proportional to the voltage at the output terminal and a reference voltage, an output of said amplifier being selectively coupled to a control terminal of the first transistor and to a control terminal of the second transistor, the amplifier being supplied by a fourth voltage corresponding to a highest voltage of the first voltage and the second voltage.
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公开(公告)号：US10608854B2
公开(公告)日：2020-03-31
申请号：US16156155
申请日：2018-10-10
发明人： Maksimiljan Stiglic , Kosta Kovacic
摘要： A method of wireless communication includes transmitting frames from a transponder to a reader and synchronizing between a reader carrier frequency and an active load modulation (ALM) carrier frequency within each transmitted frame. Each transmitted frame includes ALM carrier bursts generated from subcarrier modulation by binary phase shift keying (BPSK) data encoding and producing signal oscillations at a transponder antenna after each ALM carrier burst generation, The synchronizing occurs at each phase change of the data encoding when no burst is generated during a half period of the subcarrier preceding the phase change and a half period of the subcarrier following this phase change. The transponder antenna has a moderate quality factor sufficient to naturally damp the signal oscillations so that the synchronizing is performed without performing any controlled signal oscillations damping.
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公开(公告)号：US10560255B2
公开(公告)日：2020-02-11
申请号：US16029457
申请日：2018-07-06
摘要： A transponder communicates with a reader using active load modulation. The transponder includes a digital phase locked loop (DPLL), which, in operation, generates an active load modulation (ALM) carrier clock synchronized to carrier clock of the reader. Between transmission of data frames, the DPLL is placed in a lock mode of operation in which a feedback loop of the DPLL is closed. Within a transmitted data frame having a duration, the DPLL is placed, for the duration of the transmitted data frame, in a hold mode of operation in which the feedback loop is opened. A phase of the ALM carrier clock is adjusted at least once during the duration of the transmitted data frame.
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5.发明申请公开(公告)号：US20210081622A1
公开(公告)日：2021-03-18
申请号：US17102917
申请日：2020-11-24
发明人： Maksimiljan Stiglic , Iztok Bratuz , Albin Pevec , Roman Benkovic
摘要： A method for decoding a data stream carried by a modulated signal includes receiving the modulated signal. The modulated signal is modulated according to a protocol belonging to a group of protocols including at least three protocols. The method further includes extracting a clock signal from the received modulated signal, detecting the protocol, and decoding the data stream according to the detected protocol using the extracted clock signal.
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6.发明申请公开(公告)号：US20190384951A1
公开(公告)日：2019-12-19
申请号：US16443227
申请日：2019-06-17
发明人： Maksimiljan Stiglic , Iztok Bratuz , Albin Pevec , Roman Benkovic
摘要： A method for decoding a data stream carried by a modulated signal includes receiving the modulated signal. The modulated signal is modulated according to a protocol belonging to a group of protocols including at least three protocols. The method further includes extracting a clock signal from the received modulated signal, detecting the protocol, and decoding the data stream according to the detected protocol using the extracted clock signal.
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公开(公告)号：US20180358680A1
公开(公告)日：2018-12-13
申请号：US15951774
申请日：2018-04-12
CPC分类号： H01Q1/002 , G01R21/00 , G06K7/10 , H04B5/0025 , H04W52/00
摘要： In some embodiments, a contactless communication device includes an antenna, and a driving stage having a power supply terminal configured to receive a power supply voltage, where the driving stage is configured to deliver a current to the antenna. The device further includes a monitoring circuit configured to monitor the power transmitted by the antenna. The monitoring circuit is configured, in the presence of a request for a reduction in a current level of transmitted power, to reduce the power supply voltage of the driving stage down to a target value corresponding to a new level of the transmitted power less than the current level.
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公开(公告)号：US20230273634A1
公开(公告)日：2023-08-31
申请号：US18158170
申请日：2023-01-23
发明人： Albin Pevec , Nejc Suhadolnik , Vinko Kunc , Maksimiljan Stiglic
IPC分类号： G05F1/575
CPC分类号： G05F1/575
摘要： In accordance with an embodiment, a linear voltage regulator includes: a first transistor coupled between a first input terminal and an output terminal, the first input terminal adapted to receive a first voltage, and the output terminal adapted to provide a regulated voltage; a second transistor coupled between a second input terminal and the output terminal, the second input terminal adapted to receive a second voltage; and an amplifier of a difference between a third voltage proportional to the voltage at the output terminal and a reference voltage, an output of said amplifier being selectively coupled to a control terminal of the first transistor and to a control terminal of the second transistor, the amplifier being supplied by a fourth voltage corresponding to a highest voltage of the first voltage and the second voltage.
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公开(公告)号：US10122557B1
公开(公告)日：2018-11-06
申请号：US15966948
申请日：2018-04-30
发明人： Maksimiljan Stiglic , Kosta Kovacic
CPC分类号： H04L27/2071 , G06K19/0723 , H04B5/0056 , H04L27/04 , H04L27/361
摘要： A method of wireless communication includes transmitting frames from a transponder to a reader and synchronizing between a reader carrier frequency and an active load modulation (ALM) carrier frequency within each transmitted frame. Each transmitted frame includes ALM carrier bursts generated from subcarrier modulation by binary phase shift keying (BPSK) data encoding and producing signal oscillations at a transponder antenna after each ALM carrier burst generation, The synchronizing occurs at each phase change of the data encoding when no burst is generated during a half period of the subcarrier preceding the phase change and a half period of the subcarrier following this phase change. The transponder antenna has a moderate quality factor sufficient to naturally damp the signal oscillations so that the synchronizing is performed without performing any controlled signal oscillations damping.
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10.发明授权公开(公告)号：US11423239B2
公开(公告)日：2022-08-23
申请号：US17102917
申请日：2020-11-24
发明人： Maksimiljan Stiglic , Iztok Bratuz , Albin Pevec , Roman Benkovic
摘要： A method for decoding a data stream carried by a modulated signal includes receiving the modulated signal. The modulated signal is modulated according to a protocol belonging to a group of protocols including at least three protocols. The method further includes extracting a clock signal from the received modulated signal, detecting the protocol, and decoding the data stream according to the detected protocol using the extracted clock signal.
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