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    POWER MONITORING USING POWER MANAGEMENT INTEGRATED CIRCUITS
    5.
    发明申请
    POWER MONITORING USING POWER MANAGEMENT INTEGRATED CIRCUITS 审中-公开

    公开(公告)号：US20200333386A1

    公开(公告)日：2020-10-22

    申请号：US16852121

    申请日：2020-04-17

    Applicant: Google LLC

    Inventor： David Bart Bennett ,  Nathan Connell ,  Cheng-Yi Andrew Lin ,  Amin Khajeh Djahromi

    IPC: G01R21/133 ,  H03M1/12 ,  H02M1/00

    Abstract: Methods and apparatus for power monitoring using power management integrated circuits. In some implementations, a power management integrated circuit includes multiple voltage regulators, an analog multiplexer, an analog to digital converter, power determination circuitry, and control circuitry. The analog multiplexer has multiple inputs that are each configured to receive an analog input signal indicative of an amount of electrical current output by a different one of the multiple voltage regulators. The analog-to-digital converter is configured to receive analog output signals from of the analog multiplexer and to provide a digital output. The power determination circuitry configured to determine a power output level for each of the multiple voltage regulators based on respective digital outputs of the analog-to-digital converter. The control circuitry is configured to control the analog multiplexer to periodically change which of the analog input signals is passed to the output of the analog multiplexer.

    Testing 3D imaging systems
    8.
    发明授权
    Testing 3D imaging systems 有权

    公开(公告)号：US10321114B2

    公开(公告)日：2019-06-11

    申请号：US15228909

    申请日：2016-08-04

    Applicant: Google LLC

    Inventor： Cheng-Yi Andrew Lin ,  Honglei Wu

    IPC: H04N13/246 ,  G01S5/02 ,  G01S11/12 ,  G06T7/80

    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, relating to testing three-dimensional imaging systems. In some implementations, a system includes a mount for a three-dimensional camera, a mount for a calibration target, and a rail to which the mount for the calibration target is coupled. The movement of the mount for the calibration target is constrained to the direction extending along the rail. The system includes a processing device having logic that receives a reading from a particular three-dimensional camera coupled to the mount for the three-dimensional camera. The reading includes a distance from the three-dimensional camera to a particular calibration target coupled to the mount for the calibration target. The logic receives a measurement of an actual distance from the particular three-dimensional camera to the particular calibration target. The logic then provides measurement characteristics of the particular three-dimensional camera.

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