Abstract: A dedicated extension and emulation proxy for wirelessly extending and emulating several USB-based data stream protocols, such as UVC, UAC, and HID, and standards for connecting high-definition video devices, such as HDMI, in a proxy fashion. The dedicated hardware and software extend these multimedia interfaces over a wireless network link through an emulation wrapper or proxy. The host computer does not virtually see the existence of the wireless connection because its network hardware and software are bypassed to compartmentalize point-to-point networking away from the host computer. The multimedia interface of the host computer is extended wirelessly using surrogate stacks along with protocol emulation transcoding.

Abstract: A transparent projection display system for video conferencing and collaborative communication is provided. The system comprises a transparent projection screen of clear material, a video projector configured to project images onto the front side of the screen, and a camera disposed behind the screen for capturing video of a user on the front side. To maximize the brightness of the projected image as viewed by the user while substantially preventing the camera from capturing the projected image transmitted through the screen, the system includes a reflective layer disposed on the front side of the projection screen and a microlouver film disposed on the rear side. The reflective layer is configured to reflect the projected image toward the user, and the microlouver film comprises an array of louvers that block transmission of the projected image to the camera except along a narrow viewing angle aligned with the camera's optical axis.

Abstract: An access point (AP) sends a first frame to a station (STA), where the first frame includes at least one of the following segment information: a first segmentation enabling indication and a first segment number M. The first segment number M indicates that an equivalent frequency domain channel corresponds to M subband channels. The AP communicates with the STA based on the at least one piece of segment information.

Abstract: A system for video conferencing comprises a video projector and a transparent projection screen of clear material. A behind-display camera captures a video image through the transparent projection screen of a user located on the front side of the screen. To optimize the brightness of the projected video image (as viewed by the user) while preventing the behind-display camera from capturing that same projected video image transmitted through the screen, a series of optical layers in the form of films and/or coatings are included in the optical path between the projector and the camera. The series of optical layers may comprise a first linear polarizer, a partially reflective layer or dispersion layer, and a second linear polarizer. The first and second linear polarizers are orthogonal to one another, i.e., their axes are oriented 90 degrees to one another to block the projected image from being received by the camera.

Abstract: A camera device placed behind a display screen with singular resolution and uniform level of transparency, capturing the user on the front side of the display capturing in the camera's FOV at least some of the user's touch gestures when in contact of the display screen. In a preferred embodiment, the display is semi-transparent with at least 25% or more transparency, and the camera is placed at the center of the back surface of the display screen to allow natural looking images of the person's gaze or glance.

Abstract: Provided is a method for recycling a retired nickel-cobalt-manganese (NCM) cathode with an alkali-free solution designed based on Le Chatelier's principle. Citric acid is used as a leaching agent and leached at a suitable solid-to-liquid ratio and acid solution concentration. Oxalic acid is added to obtain a green precipitate, and the green precipitate is mixed with a certain amount of LiOH and then calcined to obtain a regenerated cathode.

Abstract: The present invention provides a display screen with an integrated video camera optimized to capture the display screen's information and a light source that injects colored light into the edge of the display screen. Additionally, the system comprises a color blending instrument to blend the primary colors of red, green, blue, and a combination thereof to create an unlimited variety of color combinations that are injected into the display screen.

Abstract: The present disclosure discloses a molten aluminum erosion resistant casting tip paint, the casting tip paint is formed by mixing magnesia-alumina spinel, alumina, magnesia, water, sodium tripolyphosphate and sodium carboxymethyl cellulose, wherein the proportions of various raw materials for the casting tip paint are as follows: magnesia-alumina spinel of 40-50 wt %, alumina of 10-20 wt %, magnesia of 5-10 wt %, water of 20-40 wt %, sodium tripolyphosphate of 0-10 wt %, and sodium carboxymethyl cellulose of 0-10 wt %. The present disclosure also discloses a preparation method of a molten aluminum erosion resistant casting tip. The molten aluminum erosion resistant casting tip paint provided by the present disclosure can be evenly coated onto the inner wall of the casting tip, so as to form a compact molten aluminum erosion resistant coating, thereby preventing infiltration and erosion of the molten aluminum.

Abstract: A computer system can automatically analyze a video of a physical activity and provide corresponding feedback. For example, the system can receive a video file including image frames showing an entity performing a physical activity that involves a sequence of movement phases. The system can generate coordinate sets by performing image analysis on the image frames. The system can provide the coordinate sets as input to a trained model, the trained model being configured to assign scores and movement phases to the image frames based on the coordinate sets. The system can then select a particular movement phase for which to provide feedback, based on the scores and movement phases assigned to the image frames. The system can generate the feedback for the entity about their performance of the particular movement phase, which may improve the entity's future performance of that particular movement phase.

Abstract: The present invention provides a display screen with an integrated video camera optimized to capture the display screen’s information and a light source that injects colored light into the edge of the display screen. Additionally, the system comprises a color blending instrument to blend the primary colors of red, green, blue, and a combination thereof to create an unlimited variety of color combinations that are injected into the display screen.

Abstract: An improved digital teaching station, a stand, and a platform that supports a central multitouch flat-panel display screen is provided. A reflective glass mirror is affixed on top of the stand, and a computing device is connected. Moreover, a document camera is attached to a side tray. Furthermore, hardware and software enables a separate video stream to create always upright content from an upward facing electronic display screen and to interconnect with all devices and data types.

Abstract: The present invention provides an interactive display screen integrated with an image capture device optimized to capture the user, the user's correct gaze, and information inputted on or through the interactive display screen. The present invention does not require extraneous video production equipment or technical expertise to operate while providing a compact and easily transportable system. The display screen is transparent such as an organic light emitting diode (OLED) display, with an optional touchscreen. The display screen may display digital photos or other multimedia objects that a user can annotate or otherwise manipulate. The device captures the displayed multimedia information and combines it with a video stream captured from the image capture device. The present invention also implements a display screen with a display cycle that is offset by 180 degrees from the capture cycle of the image capture device.

Abstract: The present invention provides an interactive display screen integrated with a video camera optimized to capture the user, the user's correct gaze, and information inputted on or through the interactive display screen. A presenter writes or draws information on the display screen while facing an audience. The display screen displays digital photos or other multimedia objects that a user can annotate or otherwise manipulate. Meanwhile, the device captures the displayed multimedia information and combines it with a video stream captured from the video camera. No extraneous video production equipment or technical expertise is required to operate while providing a compact and easily transportable system.

Abstract: The present invention provides a display screen with an integrated video camera optimized to capture the display screen's information. A presenter writes or draws information on the display screen while facing an audience. The video camera is located on the side opposite from the presenter. No extraneous video production equipment or technical expertise is required to operate while providing a compact and easily transportable system.

Abstract: A digital notepad is disclosed that includes an onboard computer, a base having retainers, a writing instrument having a tip that is configured to deliver ink, a plurality of sheets of paper, and a plurality of touch sensors communicatively connected to the onboard computer. The onboard computer includes one or more computer processors and a program loaded thereon configured to read information from at least one of the plurality of touch sensors. At least one of the touch sensors of the plurality of touch sensors may be integrated into the base. At least one of the plurality of sheets of paper may be retained on the base and in close proximity to the at least one of the touch sensors. The digital notepad may further include a display screen communicatively connected to the onboard computer and configured to display markings read by at least one of the plurality of touch sensors. In another embodiment, the digital notepad's writing instrument includes thermally reactive ink.

Abstract: The present invention provides an improved digital teaching station, a stand, and a platform that supports a central interactive flat-panel display screen. A reflective glass mirror is affixed on top of the stand, and a computing device is connected. Moreover, a document camera is attached to a side tray. Furthermore, hardware and software enables a separate video stream to create always upright content from an upward facing electronic display screen and to interconnect with all devices including and data types.

Abstract: The present invention provides a new and useful hybrid digital and physical interactive writing surface. A user writes on a physical writing surface using thermal ink. Underneath the physical writing surface is a heating layer. Once the heating layer is activated, the thermal ink disappears. Meanwhile, sensors capture a user's strokes while writing, and a computing device digitally stores the captured strokes. Therefore, there is zero-time delay or lag time between writing on the physical writing surface and its appearance. Finally, there is no need to erase any writing nor use other sheets or boards after one use because the writing is automatically erased.