Abstract: A speaker comprises a housing, a transducer residing inside the housing, and at least one sound guiding hole located on the housing. The transducer generates vibrations. The vibrations produce a sound wave inside the housing and cause a leaked sound wave spreading outside the housing from a portion of the housing. The at least one sound guiding hole guides the sound wave inside the housing through the at least one sound guiding hole to an outside of the housing. The guided sound wave interferes with the leaked sound wave in a target region. The interference at a specific frequency relates to a distance between the at least one sound guiding hole and the portion of the housing.

Abstract: The present disclosure relates to an open earphone. The open earphone may include a sound production device and an ear hook including a first part and a second part connected in sequence. The first part may be hooked and arranged between an auricle and a head of a user. The second part may extend to a front lateral surface of the auricle and may be connected to the sound production device. The sound production device may be worn at a position that is near an ear canal without blocking an earhole of the user. The sound production device may be at least partially inserted into an auricular concha cavity of the user. An overlap ratio of a projection area of the sound production device on a sagittal plane to a projection area of the auricular concha cavity on the sagittal plane may be not less than 44.01%.

Abstract: A speaker comprises a housing, a transducer residing inside the housing, and at least one sound guiding hole located on the housing. The transducer generates vibrations. The vibrations produce a sound wave inside the housing and cause a leaked sound wave spreading outside the housing from a portion of the housing. The at least one sound guiding hole guides the sound wave inside the housing through the at least one sound guiding hole to an outside of the housing. The guided sound wave interferes with the leaked sound wave in a target region. The interference at a specific frequency relates to a distance between the at least one sound guiding hole and the portion of the housing.

Abstract: A calibration assembly may be used with an endoscopic imaging system having a field of view. The calibration assembly may comprise an interface configured for constraining engagement with the endoscopic imaging system and a target coupled with the interface so as to be within the field of view. The target may include a plurality of calibration features. The calibration assembly may be reconfigurable from a first spatial arrangement between the target and the endoscopic imaging system to a second spatial arrangement between the target and the endoscopic imaging system. The calibration assembly may also comprise a processor configured to obtain, from the endoscopic imaging system, first and second images of at least some of the calibration features of the target at the first and second spatial arrangements. The processor may also generate calibration data for the endoscopic imaging system using the first and second images.

Abstract: A composite frame structure includes a metal frame and a plastic frame. The metal frame is formed by enclosing a plurality of metal sheets. The plastic frame is combined with an inner surface of the metal frame, the plastic frame has an integrally formed structure. An electronic device having the composite frame structure and a method for manufacturing the composite frame structure are provided.

Abstract: A method and medical system for estimating the deformation of an anatomic structure that comprises generating a first model of at least one anatomical passageway from anatomical data describing a patient anatomy and determining a shape of a device positioned within the branched anatomical passageways. The method and medical system also comprise generating a second model of the plurality of branched anatomical passageways by adjusting the first model relative to the determined shape of the device.

Abstract: A medical robotic system and method of operating such comprises taking intraoperative external image data of a patient anatomy, and using that image data to generate a modeling adjustment for a control system of the medical robotic system (e.g., updating anatomic model and/or refining instrument registration), and/or adjust a procedure control aspect (e.g., regulating substance or therapy delivery, improving targeting, and/or tracking performance).

Abstract: An apparatus may configure an illuminator to illuminate a scene with non-white light. The illuminator includes a plurality of color component illumination sources. The non-white light is light other than white light and is generated by a combination of light output by the plurality of color component illumination sources. The apparatus may also control a camera to capture, in a plurality of color channels of the camera, a frame of the scene illuminated with the non-white light and adjust pixel values of a color channel of the camera in the frame of the scene to decrease noise of the color channel in the frame of the scene.

Abstract: A system may comprise an image capture device to capture an image of a work site. The system may also comprise a processor to determine whether a tool disposed at the work site is energized and determine a first area of the captured image of the work site, including or adjacent to an image of a portion of the tool in the captured image. The processor may also determine a second area of the captured image including a remainder of the captured image that does not include the first area. Conditioned upon determining that the tool is energized, at least one of the first area and the second area of the captured image of the work site may be processed to indicate that the tool in the first area is being energized. The image of the work site with the first area and the second area may be displayed.

Abstract: Techniques for control using hand tracking include a system having an input control configured to be manipulated by an operator of the system, a hand tracking unit, and a controller. The controller is configured to determine a first position of the input control; receive, from the hand tracking unit, a second position of a hand of the operator; determine whether the first position is within a threshold distance of the second position; and control display of a user interface based on the determination of whether the first position is within the threshold distance of the second position.

Abstract: A system includes a control device, a manipulator configured to support a tool having a tool frame; and at least one processor coupled to the control device and the manipulator. The at least one processor configured to perform a method. The method includes receiving one or more images captured by an image-capturing system, the image-capturing system having an image frame. The tool is visible in the one or more images. The method also includes determining an estimated frame transform based on the one or more images. The estimated frame transform is used in defining an unknown frame transform between the image frame and the tool frame. The method also includes determining, in response to an input received at the control device, an output movement for the tool based on the estimated frame transform. The method also includes causing movement of the tool based on the output movement.

Abstract: An aircraft control system and control method are disclosed. The system comprises a remote control apparatus with a first control rod and a flight controller associated with an aircraft. The first control rod is configured to move in a first movement direction to control a motion of the aircraft in a first motion direction when an external force is applied on the first control rod and after a withdrawal of the external force, the first control rod returns to a preset position. The remote control apparatus operates to generate one or more control signals corresponding to the withdrawal of the external force. The flight controller controls the aircraft to maintain a flight state based on said control signals and one or more state signals, which are generated based on a measurement of the flight state by a flight controller associated with the aircraft state measurement sensors carried by the aircraft.

Abstract: A system comprises one or more processors. The system further comprises memory having computer readable instructions stored thereon that, when executed by the one or more processors, cause the system to: obtain a reference tree of nodes and linkages for a reference three dimensional volumetric representation of a branched anatomical formation in a reference state; based on the reference tree, generate a reference three dimensional geometric model; based on measurements from a sensor system, detect deformation of the branched anatomical formation; based on the detected deformation, obtain a deformed tree of nodes and linkages; and generate a three dimensional deformation field that represents the detected deformation of the branched anatomical formation.

Abstract: Methods for using registered real-time images and prior-time anatomic images during an image-guided procedure are provided herein. An exemplary method includes obtaining a three-dimensional image of a patient anatomy and a portion of a medical instrument disposed therein. The three-dimensional image includes image information characterizing a shape of the portion of the medical instrument. A processing device segments the portion of the medical instrument from the three-dimensional image. Shape data is obtained from the portion of the medical instrument while the portion is positioned within the patient anatomy, and the processing device registers the segmented shape of the portion of the medical instrument with the shape data from the portion of the medical instrument.

Abstract: A system may perform operations including receiving data comprising a plurality of image frames sampled from a volume data set of an imaged anatomical region displayable on a monitor. The plurality of image frames may correspond to a plurality of volume data reconstruction images displayed on the monitor in a series of image slices of a scrollable image stack. The operations also include analyzing the plurality of image frames to detect image features that are characteristic of a static view region in each image frame and evaluating the detected image features to determine a relative location of the detected one or more image features with respect to a scrolling view region for each image frame. The operations also include determining an ordered set of the image frames sorted according to a sequence based on relative locations and producing processed video data comprising the ordered set of the image frames.

Abstract: A device comprises an instrument usable to collect location data for one or more passageways. The device further comprises one or more processors coupled to the instrument. The one or more processors are configured to organize a plurality of points within the location data by clustering the plurality of points based on distances between points of the plurality of points. The processor(s) are further configured to create a passageway tree based on the organized points and to identify at least three non-collinear landmark locations within the passageway tree. The processor(s) are further configured to create a seed transformation between one or more of the at least three non-collinear landmark locations and corresponding model locations in model data. The processor(s) are further configured to register, using the seed transformation, the plurality of points to the model data for the one or more passageways.

Abstract: Provided are a nanocrystalline, a preparation method and a composition, an optical film, and a light emitting device. The nanocrystalline comprises an initial nanocrystalline and a sacrificial shell layer coated outside of the initial nanocrystalline. The sacrificial shell layer comprises n sacrificial sub-layers sequentially coated outward from the initial nanocrystalline at the center. The n sacrificial sub-layers may be of the same material or different materials. If the nanocrystalline is etched, at least a portion of the sacrificial shell layer is gradually consumed during the etching process. The following are measured m times during the etching process: the fluorescence emission wavelength, the full width at half maximum, the quantum yield, and the absorbance under excitation of an excitation light of a certain wavelength are measured, wherein 0?MAXPL?MINPL?10 nm, 0?MAXFWHM?MINFWHM?10 nm, 80%?MINQY/MAXQY?100%, and 80%?MINAB/MAXAB?100%, and n and m are integers greater than or equal to 1.

Abstract: A trans-inductor voltage regulator with fault detection has a plurality of transformers. Each transformer of the plurality of the transformers has a primary winding coupled to a switching circuit, and a secondary winding. Each secondary winding of each transformer of the plurality of transformers are coupled in series with a compensation inductor. The trans-inductor further has a controller operable to detect a) a short condition in a secondary side of each transformer of the plurality of transformers, b) a short condition between a primary side and the secondary side of each transformer of the plurality of transformers; c) an open condition in the primary side of each transformer of the plurality of transformers; and d) an open condition in the secondary side of each transformer of the plurality of transformers.

Abstract: A method performed by a computing system comprises receiving shape information for an elongate flexible portion of a medical instrument. The medical instrument includes a reference portion movably coupled to a fixture having a known pose in a surgical reference frame. The fixture includes a constraint structure having a known constraint structure location in the surgical reference frame. The elongate flexible portion is coupled to the reference portion and is sized to pass through the constraint structure. The method further includes receiving reference portion position information in the surgical reference frame; determining an estimated constraint structure location in the surgical reference frame from the reference portion position information and the shape information; determining a correction factor by comparing the estimated constraint structure location to the known constraint structure location; and modifying the shape information based upon the correction factor.

Abstract: An apparatus may configure an illuminator to illuminate a scene with non-white light and control a camera to capture, in a plurality of color channels of the camera, a frame of the scene illuminated with the non-white light. The apparatus may adjust a signal of a color channel of the camera in the frame of the scene based on the non-white light.