Low Power Beacon Scheduling
    1.
    发明公开

    公开(公告)号:US20240070412A1

    公开(公告)日:2024-02-29

    申请号:US18489324

    申请日:2023-10-18

    CPC classification number: G06K7/10366 G06K19/0723

    Abstract: The technology relates to a wireless system that can be used indoors or outdoors, and is configured to reduce interference of beacon signals on channels used by the system. Aspects of the technology provide for evaluation of channel activity to determine an optimal transmission channel. This is beneficial where there is a high density of tags that may be configured for data transmission. Tags may include an antenna to receive signals; a first conditioning element to attenuate received signals corresponding with the system channels; a converter and a second conditioning element to prepare attenuated signals for analysis; a comparator to compare an attenuated signal to a threshold value; and a processor to transmit a beacon signal to a reader apparatus based on the comparison.

    Microelectromechanical systems (MEMS) rectifier and storage element for energy harvesting

    公开(公告)号:US11858807B2

    公开(公告)日:2024-01-02

    申请号:US17901988

    申请日:2022-09-02

    Inventor: Amit Lal

    CPC classification number: B81B7/0074 B81B3/0021 H10N30/85

    Abstract: An electronic device includes a microelectromechanical system (MEMS) rectifier. The MEMS rectifier includes a mainboard and a sub-board. The mainboard has one or more radiofrequency (RF) inputs configured to receive an RF signal, and a first electrical contact. The sub-board is positioned parallel to the mainboard with a gap in-between, and has a thin film piezoelectric layer, a second electrical contact positioned opposite the first electrical contact, and a ground plane. The sub-board is configured to vibrate as the RF signal is received at the one or more RF inputs, and the thin film piezoelectric layer is configured to generate energy due to the vibration and piezoelectric properties of the thin film piezoelectric layer.

    MULTIMODE ENERGY HARVESTING DEVICE
    4.
    发明公开

    公开(公告)号:US20240195353A1

    公开(公告)日:2024-06-13

    申请号:US18401888

    申请日:2024-01-02

    Abstract: An energy harvesting tape comprising a plurality of flexible layers. The plurality of flexible layers includes a solar cell layer configured to capture solar energy, a thermoelectric layer configured to capture thermal energy, one or more piezoelectric layers configured to capture mechanical energy; and an electrode layer configured to capture radiofrequency energy and to transmit a radiofrequency signal. The energy harvesting tape also includes one or more processing units on at least one of the plurality of flexible layers. The one or more processing units are configured to use the captured energy from the plurality of flexible layers to transmit the radiofrequency signal. The energy harvesting tape has a length, a width, and a thickness, where the length is greater than the width, and the width is greater than the thickness.

    Multimode energy harvesting device

    公开(公告)号:US11901858B2

    公开(公告)日:2024-02-13

    申请号:US17514230

    申请日:2021-10-29

    Abstract: An energy harvesting tape comprising a plurality of flexible layers. The plurality of flexible layers includes a solar cell layer configured to capture solar energy, a thermoelectric layer configured to capture thermal energy, one or more piezoelectric layers configured to capture mechanical energy; and an electrode layer configured to capture radiofrequency energy and to transmit a radiofrequency signal. The energy harvesting tape also includes one or more processing units on at least one of the plurality of flexible layers. The one or more processing units are configured to use the captured energy from the plurality of flexible layers to transmit the radiofrequency signal. The energy harvesting tape has a length, a width, and a thickness, where the length is greater than the width, and the width is greater than the thickness.

    LOW POWER BEACON SCHEDULING
    6.
    发明公开

    公开(公告)号:US20230342569A1

    公开(公告)日:2023-10-26

    申请号:US17728199

    申请日:2022-04-25

    CPC classification number: G06K7/10366 H04W4/029

    Abstract: The technology relates to a wireless system that can be used indoors or outdoors, and is configured to reduce interference of beacon signals on channels used by the system. Aspects of the technology provide for evaluation of channel activity to determine an optimal transmission channel. This is beneficial where there is a high density of tags that may be configured for data transmission. Tags may include an antenna to receive signals; a set of first conditioning elements to attenuate received signals corresponding with system channels; a set of converters and a set of second conditioning elements to prepare attenuated signals for analysis; a comparator to determine which attenuated signal corresponds to a channel having the lowest power level; and a processor to transmit a beacon signal to a reader apparatus on the channel with the lowest power level.

    MICROELECTROMECHANICAL SYSTEMS (MEMS) RECTIFIER AND STORAGE ELEMENT FOR ENERGY HARVESTING

    公开(公告)号:US20230138355A1

    公开(公告)日:2023-05-04

    申请号:US17901988

    申请日:2022-09-02

    Inventor: Amit Lal

    Abstract: An electronic device includes a microelectromechanical system (MEMS) rectifier. The MEMS rectifier includes a mainboard and a sub-board. The mainboard has one or more radiofrequency (RF) inputs configured to receive an RF signal, and a first electrical contact. The sub-board is positioned parallel to the mainboard with a gap in-between, and has a thin film piezoelectric layer, a second electrical contact positioned opposite the first electrical contact, and a ground plane. The sub-board is configured to vibrate as the RF signal is received at the one or more RF inputs, and the thin film piezoelectric layer is configured to generate energy due to the vibration and piezoelectric properties of the thin film piezoelectric layer.

    MULTIMODE ENERGY HARVESTING DEVICE

    公开(公告)号:US20230137071A1

    公开(公告)日:2023-05-04

    申请号:US17514230

    申请日:2021-10-29

    Abstract: An energy harvesting tape comprising a plurality of flexible layers. The plurality of flexible layers includes a solar cell layer configured to capture solar energy, a thermoelectric layer configured to capture thermal energy, one or more piezoelectric layers configured to capture mechanical energy; and an electrode layer configured to capture radiofrequency energy and to transmit a radiofrequency signal. The energy harvesting tape also includes one or more processing units on at least one of the plurality of flexible layers. The one or more processing units are configured to use the captured energy from the plurality of flexible layers to transmit the radiofrequency signal. The energy harvesting tape has a length, a width, and a thickness, where the length is greater than the width, and the width is greater than the thickness.

    MICROELECTROMECHANICAL SYSTEMS (MEMS) RECTIFIER AND STORAGE ELEMENT FOR ENERGY HARVESTING

    公开(公告)号:US20240166497A1

    公开(公告)日:2024-05-23

    申请号:US18514346

    申请日:2023-11-20

    Inventor: Amit Lal

    CPC classification number: B81B7/0074 B81B3/0021 H10N30/85

    Abstract: An electronic device includes a microelectromechanical system (MEMS) rectifier. The MEMS rectifier includes a mainboard and a sub-board. The mainboard has one or more radiofrequency (RF) inputs configured to receive an RF signal, and a first electrical contact. The sub-board is positioned parallel to the mainboard with a gap in-between, and has a thin film piezoelectric layer, a second electrical contact positioned opposite the first electrical contact, and a ground plane. The sub-board is configured to vibrate as the RF signal is received at the one or more RF inputs, and the thin film piezoelectric layer is configured to generate energy due to the vibration and piezoelectric properties of the thin film piezoelectric layer.

Patent Agency Ranking