Radiofrequency-powered device, corresponding system and method

    公开(公告)号:US11146104B2

    公开(公告)日:2021-10-12

    申请号:US16862850

    申请日:2020-04-30

    Abstract: A radiofrequency-powered device such as a wireless passive sensor node, for instance, comprises a radiofrequency energy harvesting circuit configured to be coupled to an antenna to harvest radiofrequency energy captured by the antenna from a radiofrequency signal. The radiofrequency energy harvesting circuit is configured to be coupled to an energy storage component to store therein energy harvested via the radiofrequency energy harvesting circuit. The device comprises user circuitry configured to be supplied with energy harvested via the radiofrequency energy harvesting circuit and to operate in accordance with one of a plurality of configurations as a function of configuration data supplied thereto. A receiver circuit coupled to the radiofrequency energy harvesting circuit is configured to receive a configuration data signal modulating the radiofrequency signal and supply to the user circuitry configuration data extracted from the configuration data signal received.

    Energy harvesting circuit, corresponding system and method

    公开(公告)号:US11056914B2

    公开(公告)日:2021-07-06

    申请号:US16849370

    申请日:2020-04-15

    Abstract: A first Radio-Frequency-to-Direct-Current (RF2DC) transducer receives a first signal from a sensing antenna and generates energy stored by an energy storage circuit. An energy transfer circuit is controllably switched between an energy storage state where energy is stored in the energy storage state and an energy transfer state where stored energy is transferred to a load. The voltage at the energy storage circuit is alternatively variable between an upper value and a lower value around a voltage setting point. A second RF2DC transducer, which is a down-scaled replica of the first RF2DC transducer, produces a second signal indicative of an open-circuit voltage of the first RF2DC transducer. The voltage setting point is set as a function of the second signal indicative of the open-circuit voltage of the first RF2DC transducer.

    Method and device for monitoring at least a characteristic of a block made of a building material
    15.
    发明授权
    Method and device for monitoring at least a characteristic of a block made of a building material 有权
    用于监测由建筑材料制成的块的至少特征的方法和装置

    公开(公告)号:US09335286B2

    公开(公告)日:2016-05-10

    申请号:US13770492

    申请日:2013-02-19

    CPC classification number: G01N27/00 G01M5/0083 H04Q9/00 H04Q2209/88

    Abstract: A monitoring device includes an electric supply line to be buried in the block of building material, to convey signals and to be AC supplied so as to generate voltage and current stationary waveforms. The device also includes primary inductors coupled to the electric supply line at positions corresponding to peaks of at least one of the voltage and current stationary waveforms. The device also includes integrated monitoring circuits to be buried in the block of building material, with each integrated monitoring circuit including an integrated sensor to sense at least one physical characteristic, and a secondary inductor magnetically coupled to a respective primary inductor to supply the integrated sensor, and communicate through the electric supply line.

    Abstract translation: 监控装置包括要埋在建筑材料块中的电力供应线,以传送信号并且被供电以产生电压和电流静止波形。 该装置还包括在对应于电压和电流静止波形中的至少一个的峰值的位置处耦合到电源线的初级电感器。 该装置还包括要埋在建筑材料块中的集成监控电路,每个集成监控电路包括用于感测至少一个物理特性的集成传感器,以及磁耦合到相应的初级电感器的次级电感器,以提供集成传感器 ,并通过电源线进行通信。

    Passive monitoring device of the inner pressure in a block of building material
    16.
    发明授权
    Passive monitoring device of the inner pressure in a block of building material 有权
    被动监测装置内部压力在一块建筑材料中

    公开(公告)号:US09234808B2

    公开(公告)日:2016-01-12

    申请号:US13851671

    申请日:2013-03-27

    CPC classification number: G01L1/14 G01M5/00

    Abstract: A monitoring device is for the inner pressure distribution of building material in a building structure. The device may include planar sensing capacitors to be buried in contact with the building material, with each sensing capacitor including a pair of plates and a dielectric material layer therebetween adapted to undergo elastic deformation under pressure without deforming plastically. The device may also include a protection box to be buried in the building material, a dielectric material enclosed in the protection box, and connection terminals protruding from the protection box. Pairs of metal vias are buried in the dielectric material enclosed within the protection box, with each pair connecting the plates of a respective planar sensing capacitor to respective connection terminals.

    Abstract translation: 监测装置用于建筑结构中的建筑材料的内部压力分布。 该装置可以包括要与建筑材料接触的平面感测电容器,每个感测电容器包括一对板和介于其之间的电介质材料层,适于在压力下经受弹性变形而不会塑性变形。 该装置还可以包括要埋在建筑材料中的保护盒,封闭在保护盒中的电介质材料以及从保护盒突出的连接端子。 金属通孔对被埋在封装在保护箱内的电介质材料中,每对将相应的平面感测电容器的板连接到相应的连接端子。

    Integrated circuit comprising at least an integrated antenna

    公开(公告)号:US10424633B2

    公开(公告)日:2019-09-24

    申请号:US16052777

    申请日:2018-08-02

    Abstract: A probe card for integrated circuit testing includes a printed circuit support and a probe head having a first surface mounted to a surface of the printed circuit support. A flexible substrate is positioned adjacent to a second surface of the probe head and includes at least one flexible extension which extends beyond an edge of the probe head and includes a bend to make contact with the surface of the printed circuit support. The flexible substrate further includes a test antenna configured to support a wireless communications channel with an integrated circuit under test. The integrated circuit under test includes at least one conductive structure that extends in the peripheral portion on different planes of metallizations to form an integrated antenna that is coupled for communication and/or power transfer to the test antenna.

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