Recovery mode algorithm for two stage HVAC equipment

    公开(公告)号:US12130038B2

    公开(公告)日:2024-10-29

    申请号:US18138615

    申请日:2023-04-24

    IPC分类号: F24F11/63 F24F11/65 G05B15/02

    摘要: A system includes two stage HVAC equipment and processing circuitry configured to receive a call for conditioning and, in response to the call for conditioning, execute a recovery mode algorithm. The recovery mode algorithm is configured to determine an elapsed time between the call for conditioning and an ending of a recent cycle and compare the elapsed time to a threshold time period. The recovery mode algorithm is also configured to, in response to the elapsed time being below the threshold time period, determine a first stage up time based on a first function corresponding to the elapsed time being below the threshold time period. The recovery mode algorithm is also configured to, in response to the elapsed time meeting or exceeding the threshold time period, determine a second stage up time based on a second function corresponding to the elapsed time meeting or exceeding the threshold time period.

    Pre-patient collimator having a built-in alignment mechanism

    公开(公告)号:US12125604B2

    公开(公告)日:2024-10-22

    申请号:US17591143

    申请日:2022-02-02

    IPC分类号: G21K1/04 A61B6/03 A61B6/06

    CPC分类号: G21K1/04 A61B6/035 A61B6/06

    摘要: A pre-patient collimator for a CT imaging system is provided. The pre-patient collimator includes a collimator housing including a plurality of walls, wherein the plurality of walls includes a first wall configured to face an X-ray source when the pre-patient collimator is coupled to the CT imaging system and a second wall and a third wall flanking the first wall. The pre-patient collimator also includes a bowtie filter assembly disposed within the collimator housing and including a bowtie filter. The pre-patient collimator further includes an adjustment mechanism configured to move the bowtie filter assembly in a lateral direction between the second wall and the third wall within the collimator housing.

    System and method for oscillatory eddy current correction for diffusion-weighted echo-planar imaging

    公开(公告)号:US12123933B2

    公开(公告)日:2024-10-22

    申请号:US18079147

    申请日:2022-12-12

    摘要: A method for correcting diffusion-weighted echo-planar imaging data (DW-EPI) includes obtaining a first reference scan with no diffusion gradients applied, a second reference scan with a diffusion gradient applied only along a frequency direction, a third reference scan with the diffusion gradient applied only along a phase direction, and a fourth reference scan with the diffusion gradient applied only along a slice direction acquired utilizing an MRI scanner, wherein the reference scans lack phase encoding. The method includes obtaining DW-EPI data acquired utilizing the MRI scanner, wherein the DW-EPI data includes phase errors due to oscillatory eddy currents causing time-varying B0 shift. The method includes generating a phase correction factor based on the reference scans and correcting the phase errors due to the oscillatory eddy currents in the DW-EPI data independent of diffusion gradient direction utilizing the phase correction factor to generate corrected DW-EPI data.

    Systems and methods for PLL gain calibration and duty cycle calibration using shared phase detector

    公开(公告)号:US12119830B2

    公开(公告)日:2024-10-15

    申请号:US18120819

    申请日:2023-03-13

    申请人: Apple Inc.

    IPC分类号: H03L7/083 H03L7/081 H03L7/195

    摘要: This disclosure is directed to enhancing PLL performance via gain calibration and duty cycle calibration. It may be desirable to perform loop gain and duty cycle calibration simultaneously. However, doing so may result in prohibitive complexity and/or area/power penalty. To enable loop gain calibration and duty cycle calibration simultaneously, the duty cycle error and the gain error may be detected in the time domain, which may enable duty cycle calibration and loop gain calibration circuitries to share a phase detector. Detecting the duty cycle error and the loop gain error in the time domain may be accomplished by implementing an analog or digital PLL system, wherein the loop gain of the PLL system is a function of the input phase offset time.

    Systems and methods for detecting known and unknown objects

    公开(公告)号:US12117525B2

    公开(公告)日:2024-10-15

    申请号:US17582721

    申请日:2022-01-24

    摘要: A presence detection system includes a presence detection field of an amusement park attraction, multiple transmitters, multiple receivers, and a controller. The multiple transmitters send multiple light beams of multiple wavelengths and the multiple receivers receive the multiple light beams of the multiple wavelengths. The controller receives input from the multiple transmitters and receivers and determines presence of an object in the presence detection field based on an interruption of the multiple light beams as indicated by the input. The controller also determines reflected light beams of the multiple wavelengths, absorbed light beams of the multiple wavelengths, or both, based on the input. The controller determines the object as a known object or an unknown object based at least in part on the reflected light beams, the absorbed light beams, or both.

    Systems and methods for animated figure display

    公开(公告)号:US12112415B2

    公开(公告)日:2024-10-08

    申请号:US17704316

    申请日:2022-03-25

    摘要: In an embodiment, an animated figure display system includes an animated figure having a body and a first tracker coupled to the body. The animated figure display system includes a projection surface having a second tracker coupled to the projection surface. The projection surface moves between a first position and a second position and the projection surface is at least partially concealed behind the animated figure in the first position. The animated figure display system includes a tracking camera that detects the first tracker and the second tracker and generates location data. A controller receives the location data and generates a control signal based on the location data. A projector receives the control signal indicative of image content from the controller and projects the image content onto the body of the animated figure and the external surface of the projection surface.