SEMI-CLOSED WIRELESS DATA TRANSFER FOR ROTARY JOINTS

    公开(公告)号:US20230361485A1

    公开(公告)日:2023-11-09

    申请号:US18067495

    申请日:2022-12-16

    CPC classification number: H01Q21/24 H01Q21/061

    Abstract: Systems configured to implement semi-closed wireless data transfer for rotary joints are disclosed. An example system includes first and second RF transceivers, to be included in different components of a rotary joint. The first and second RF transceivers implement elliptically (e.g., circularly) polarized antennas to realize a short distance communication link (e.g., a 60 GHz short distance communication link) between the two components of a rotary joint. The example system further includes an open-ended waveguide (OEWG) between the first and second RF transceivers, for receiving, at a first end of the OEWG, wireless signals transmitted by one of the first and second RF transceivers, transmitting the received signals through the OEWG, and radiating, at a second end of the OEWG, wireless signals indicative of the received wireless signals, to be received by another one of the first and second RF transceivers.

    FRACTIONAL DIVIDER WITH DUTY CYCLE REGULATION AND LOW SUBHARMONIC CONTENT

    公开(公告)号:US20230336182A1

    公开(公告)日:2023-10-19

    申请号:US18317582

    申请日:2023-05-15

    CPC classification number: H03L7/1974 H03L7/085 H03L7/185

    Abstract: Systems, devices, and methods related to frequency divider circuitry are provided. An apparatus includes frequency divider circuitry including a first node to receive an input signal; fractional divider circuitry to generate, based on the input signal and a frequency-division ratio, a first signal having a first series of pulses with adjacent pulses triggered by opposite edges of the input signal, wherein the fractional divider circuitry includes first signal selection circuitry; balancer divider circuitry to generate, based on the input signal, a second signal having a second series of pulses aligned to the first series of pulses, wherein the balancer divider circuitry includes second signal selection circuitry triggered by opposite edges of the input signal than the first signal selection circuitry; and a second node to combine the first signal and the second signal.

    REFERENCE ELECTRODES OF ELECTROCHEMICAL SENSORS

    公开(公告)号:US20230304958A1

    公开(公告)日:2023-09-28

    申请号:US18187466

    申请日:2023-03-21

    CPC classification number: G01N27/301 G01N27/3272

    Abstract: A reference electrode of an electrochemical sensor includes a substrate having internal walls defining a well and a channel. The reference electrode includes a conductive element disposed in the substrate. The well extends from a first surface of a substrate towards a second surface of the substrate. The channel is within the substrate. The channel has a first end connected to the well and a second end that is in contact with the conductive element. The reference electrode may include an additional well that extends from the first surface towards the second surface. The additional well may be connected to the second end of the channel and may be in contact with the conductive element. The channel and the wells form a flow path of a conductive medium. The flow path may be coupled to an agitating element or heating element that promotes flow of the conductive medium.

    DUAL WIDEBAND ORTHOGONALLY POLARIZED ANTENNA
    78.
    发明公开

    公开(公告)号:US20230261392A1

    公开(公告)日:2023-08-17

    申请号:US17670268

    申请日:2022-02-11

    CPC classification number: H01Q21/065 H01Q21/30 H01Q9/0414

    Abstract: Systems, devices, and methods related to dual wideband antennas with arbitrary frequency ranges are provided. An example antenna structure includes a high-band patch antenna to wirelessly communicate a first signal in a first frequency band; a low-band patch antenna to wirelessly communicate a second signal in a second frequency band lower than the first frequency band, wherein the low-band patch antenna is stacked vertically below the high-band patch antenna and spaced apart from the high-band patch antenna by a dielectric substrate; a high-band excitation via electrically coupled to the high-band patch antenna; and a low-band excitation via electrically coupled to the low-band patch antenna, wherein the high-band excitation via is separate from the low-band excitation via.

    Low temperature coefficient current sensor

    公开(公告)号:US11714108B2

    公开(公告)日:2023-08-01

    申请号:US17834541

    申请日:2022-06-07

    CPC classification number: G01R15/146 G01R19/32

    Abstract: A system current sensor module can accurately sense or measure system current flowing through a sense current resistor by shunting current through a gain-setting resistor and using an amplifier to measure a resulting voltage, with an output transistor controlled by the amplifier controlling current through the gain setting resistor in a manner that tends to keep the amplifier inputs at the same voltage. The resistors can be thermally coupled to maintain similar temperatures when a system current is flowing. The thermal coupling can include conducting heat from a first resistor layer carrying the current sense resistor to a thermal cage layer located beyond a second resistor layer carrying the gain-setting resistor. This preserves accuracy, including during aging.

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