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公开(公告)号：US09794665B2
公开(公告)日：2017-10-17
申请号：US15139892
申请日：2016-04-27
Applicant: Infineon Technologies AG
Inventor： Wilfried Florian , Andreas Wiesbauer , Richard Gaggl
CPC classification number: H04R1/04 , G06F3/162 , H04R3/00 , H04R25/00 , H04R2201/003 , H04R2410/00 , H04R2420/01
Abstract: According to an embodiment, an interface circuit includes a current replicator and a receiver. The current replicator includes a power terminal coupled to a first reference node, an output terminal configured to output a signal proportional to a signal received from a transducer, and an interface terminal coupled to the transducer. Using a single interface terminal, the current replicator may be configured to provide power to the transducer and receive output signals from the transducer. The receiver may include a first input terminal coupled to the output terminal, a second input terminal coupled to a second reference node, and a current converter circuit coupled to the first input terminal.
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公开(公告)号：US11528545B2
公开(公告)日：2022-12-13
申请号：US17243229
申请日：2021-04-28
Applicant: Infineon Technologies AG
Inventor： Wilfried Florian , Niccoló De Milleri , Philipp Greiner , Andreas Wiesbauer , Martin Wurzer , Bert Zinserling
Abstract: A circuit includes a first biasing voltage source, a second biasing voltage source, a first resistor device coupled between the first biasing voltage source and a first terminal of the circuit, a second resistor device coupled between the second biasing voltage source and a second terminal of the circuit, a third resistor device coupled between the second biasing voltage source and a third terminal, a first capacitor coupled between the third terminal and ground, and an amplifier having an input coupled to the second terminal and an output coupled to a circuit output.
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公开(公告)号：US20150181335A1
公开(公告)日：2015-06-25
申请号：US14137295
申请日：2013-12-20
Applicant: Infineon Technologies AG
Inventor： Wilfried Florian , Luca Valli , Richard Gaggl
IPC: H04R3/02
CPC classification number: H04R3/02 , H04R2201/003
Abstract: In accordance with an embodiment, a cancelation circuit includes a current mirror and a low pass filter. The current mirror includes an input terminal configured to accept an input current comprising a first noise signal, a first mirrored output and a second mirrored output. The low pass filter includes an input coupled to the first mirrored output and an output coupled to the second mirrored output. A sum of a current from the second mirrored output and a current of from the output of the low pass filter includes a phase-inverted version of the first noise signal.
Abstract translation: 根据实施例，消除电路包括电流镜和低通滤波器。 电流镜包括被配置为接受包括第一噪声信号，第一镜像输出和第二镜像输出的输入电流的输入端子。 低通滤波器包括耦合到第一镜像输出的输入和耦合到第二镜像输出的输出。 来自第二镜像输出的电流和来自低通滤波器的输出的电流之和包括第一噪声信号的相位反转版本。
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公开(公告)号：US09357295B2
公开(公告)日：2016-05-31
申请号：US14060391
申请日：2013-10-22
Applicant: Infineon Technologies AG
Inventor： Wilfried Florian , Andreas Wiesbauer , Richard Gaggl
CPC classification number: H04R1/04 , G06F3/162 , H04R3/00 , H04R25/00 , H04R2201/003 , H04R2410/00 , H04R2420/01
Abstract: According to an embodiment, an interface circuit includes a current replicator and a receiver. The current replicator includes a power terminal coupled to a first reference node, an output terminal configured to output a signal proportional to a signal received from a transducer, and an interface terminal coupled to the transducer. Using a single interface terminal, the current replicator may be configured to provide power to the transducer and receive output signals from the transducer. The receiver may include a first input terminal coupled to the output terminal, a second input terminal coupled to a second reference node, and a current converter circuit coupled to the first input terminal.
Abstract translation: 根据实施例，接口电路包括当前复制器和接收器。 当前复制器包括耦合到第一参考节点的电源端子，被配置为输出与从换能器接收的信号成比例的信号的输出端子以及耦合到换能器的接口端子。 使用单个接口终端，当前复制器可以被配置为向换能器提供电力并且接收来自换能器的输出信号。 接收器可以包括耦合到输出端子的第一输入端子，耦合到第二参考节点的第二输入端子和耦合到第一输入端子的电流转换器电路。
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公开(公告)号：US09253569B2
公开(公告)日：2016-02-02
申请号：US14137295
申请日：2013-12-20
Applicant: Infineon Technologies AG
Inventor： Wilfried Florian , Luca Valli , Richard Gaggl
IPC: H04R3/02
CPC classification number: H04R3/02 , H04R2201/003
Abstract: In accordance with an embodiment, a cancelation circuit includes a current mirror and a low pass filter. The current mirror includes an input terminal configured to accept an input current comprising a first noise signal, a first mirrored output and a second mirrored output. The low pass filter includes an input coupled to the first mirrored output and an output coupled to the second mirrored output. A sum of a current from the second mirrored output and a current of from the output of the low pass filter includes a phase-inverted version of the first noise signal.
Abstract translation: 根据实施例，消除电路包括电流镜和低通滤波器。 电流镜包括被配置为接受包括第一噪声信号，第一镜像输出和第二镜像输出的输入电流的输入端子。 低通滤波器包括耦合到第一镜像输出的输入和耦合到第二镜像输出的输出。 来自第二镜像输出的电流和来自低通滤波器的输出的电流之和包括第一噪声信号的相位反转版本。
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Patent Agency Ranking
公开(公告)号：US09681211B2
公开(公告)日：2017-06-13
申请号：US13941273
申请日：2013-07-12
Applicant: Infineon Technologies AG
Inventor： Wilfried Florian , Andreas Wiesbauer , Marcus Gehle
Abstract: In accordance with an embodiment, a two-wire microphone includes an integrated circuit. The integrated circuit includes an amplifier having a power supply connection coupled to a first pin of the integrated circuit and a reference connection coupled to a second pin of the integrated circuit, and an impedance element having a first end coupled to an output of the amplifier and a second end coupled to a first node within the integrated circuit.
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公开(公告)号：US20150016636A1
公开(公告)日：2015-01-15
申请号：US13941273
申请日：2013-07-12
Applicant: Infineon Technologies AG
Inventor： Wilfried Florian , Andreas Wiesbauer , Marcus Gehle
IPC: H04R1/08
Abstract: In accordance with an embodiment, a two-wire microphone includes an integrated circuit. The integrated circuit includes an amplifier having a power supply connection coupled to a first pin of the integrated circuit and a reference connection coupled to a second pin of the integrated circuit, and an impedance element having a first end coupled to an output of the amplifier and a second end coupled to a first node within the integrated circuit.
Abstract translation: 根据实施例，双线麦克风包括集成电路。 集成电路包括放大器，其具有耦合到集成电路的第一引脚的电源连接和耦合到集成电路的第二引脚的参考连接，以及阻抗元件，其具有耦合到放大器的输出端的第一端和 第二端耦合到集成电路内的第一节点。
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公开(公告)号：US20220353594A1
公开(公告)日：2022-11-03
申请号：US17243229
申请日：2021-04-28
Applicant: Infineon Technologies AG
Inventor： Wilfried Florian , Niccoló De Milleri , Philipp Greiner , Andreas Wiesbauer , Martin Wurzer , Bert Zinserling
Abstract: A circuit includes a first biasing voltage source, a second biasing voltage source, a first resistor device coupled between the first biasing voltage source and a first terminal of the circuit, a second resistor device coupled between the second biasing voltage source and a second terminal of the circuit, a third resistor device coupled between the second biasing voltage source and a third terminal, a first capacitor coupled between the third terminal and ground, and an amplifier having an input coupled to the second terminal and an output coupled to a circuit output.
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公开(公告)号：US20160241943A1
公开(公告)日：2016-08-18
申请号：US15139892
申请日：2016-04-27
Applicant: Infineon Technologies AG
Inventor： Wilfried Florian , Andreas Wiesbauer , Richard Gaggl
CPC classification number: H04R1/04 , G06F3/162 , H04R3/00 , H04R25/00 , H04R2201/003 , H04R2410/00 , H04R2420/01
Abstract: According to an embodiment, an interface circuit includes a current replicator and a receiver. The current replicator includes a power terminal coupled to a first reference node, an output terminal configured to output a signal proportional to a signal received from a transducer, and an interface terminal coupled to the transducer. Using a single interface terminal, the current replicator may be configured to provide power to the transducer and receive output signals from the transducer. The receiver may include a first input terminal coupled to the output terminal, a second input terminal coupled to a second reference node, and a current converter circuit coupled to the first input terminal.
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公开(公告)号：US20150110300A1
公开(公告)日：2015-04-23
申请号：US14060391
申请日：2013-10-22
Applicant: Infineon Technologies AG
Inventor： Wilfried Florian , Andreas Wiesbauer , Richard Gaggl
IPC: H04R3/00
CPC classification number: H04R1/04 , G06F3/162 , H04R3/00 , H04R25/00 , H04R2201/003 , H04R2410/00 , H04R2420/01
Abstract: According to an embodiment, an interface circuit includes a current replicator and a receiver. The current replicator includes a power terminal coupled to a first reference node, an output terminal configured to output a signal proportional to a signal received from a transducer, and an interface terminal coupled to the transducer. Using a single interface terminal, the current replicator may be configured to provide power to the transducer and receive output signals from the transducer. The receiver may include a first input terminal coupled to the output terminal, a second input terminal coupled to a second reference node, and a current converter circuit coupled to the first input terminal.
Abstract translation: 根据实施例，接口电路包括当前复制器和接收器。 当前复制器包括耦合到第一参考节点的电源端子，被配置为输出与从换能器接收的信号成比例的信号的输出端子以及耦合到换能器的接口端子。 使用单个接口终端，当前复制器可以被配置为向换能器提供电力并且接收来自换能器的输出信号。 接收器可以包括耦合到输出端子的第一输入端子，耦合到第二参考节点的第二输入端子和耦合到第一输入端子的电流转换器电路。
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