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Han Yu

Han Yu, Sugar Land, TX US

Patent application numberDescriptionPublished
20100230113MULTI-STAGE MODULATOR - Methods and systems for pulse generation assembly that includes a plurality of staged valves operably coupled serially in a bottomhole assembly of a wellbore tool. The plurality of staged valves are operated in a substantially synchronized manner, thereby generating a series of pressure pulses. The signal strength of the generated pulse signal is multiplied by the number of staged valves in the series, and the pulse generation assembly of the disclosure is less susceptible to jamming, shock, and erosion. Further, by sequentially stopping at least one stage of the assembly and then synchronously rotating other stages, amplitude modulation is accomplished.09-16-2010

Han Yu, Carpentersville, IL US

Patent application numberDescriptionPublished
20090054084MOBILE VIRTUAL AND AUGMENTED REALITY SYSTEM - A method and apparatus for messaging within a mobile virtual and augmented reality system is provided herein. During operation a user can create “virtual graffiti” that will be left for a particular device to view as part of an augmented reality scene. The virtual graffiti will be assigned to a particular physical location. The virtual graffiti is then uploaded to a network server, along with the location and individuals who are able to view the graffiti as part of an augmented reality scene. When a device that is allowed to view the graffiti is near the location, the graffiti will be downloaded to the device and displayed as part of an augmented reality scene.02-26-2009
20090081959MOBILE VIRTUAL AND AUGMENTED REALITY SYSTEM - A method and apparatus for messaging within a mobile virtual and augmented reality system is provided herein. During operation a user can create “virtual graffiti” that will be left for a particular device to view as part of an augmented reality scene. The virtual graffiti will be assigned to a particular physical location or a part of an object that can be mobile. The virtual graffiti is then uploaded to a network server, along with the location and individuals who are able to view the graffiti as part of an augmented reality scene. When a device that is allowed to view the graffiti is near the location, the graffiti will be downloaded to the device and displayed as part of an augmented reality scene.03-26-2009
20090111434MOBILE VIRTUAL AND AUGMENTED REALITY SYSTEM - A method and apparatus for messaging within a mobile virtual and augmented reality system is provided herein. During operation a user can create “virtual graffiti” (04-30-2009
20090237328MOBILE VIRTUAL AND AUGMENTED REALITY SYSTEM - A user can create “virtual graffiti” (09-24-2009
20100066750MOBILE VIRTUAL AND AUGMENTED REALITY SYSTEM - A user can create “virtual graffiti” (03-18-2010
20100194782METHOD AND APPARATUS FOR CREATING VIRTUAL GRAFFITI IN A MOBILE VIRTUAL AND AUGMENTED REALITY SYSTEM - A method and apparatus is provided for easily creating virtual graffiti that will be left for a particular device to view. During operation a device will be placed near a first point that is used to define a boundary for the virtual graffiti. The device will locate the first point, and use the point to define the boundary. The device will receive an image that is to be used as virtual graffiti, and will fit the image within the boundary of the virtual graffiti. For example, the device may be consecutively placed near four points that will define a polygon to be used as the boundary for the virtual graffiti. An image will then be received, and the image will be fit within the polygon.08-05-2010
20100214111MOBILE VIRTUAL AND AUGMENTED REALITY SYSTEM - A user can create “virtual graffiti” that will be left for a particular device to view as part of an augmented reality scene. The virtual graffiti will be assigned to a particular physical location or a part of an object that can be mobile. The virtual graffiti is then uploaded to a network server, along with the location and individuals who are able to view the graffiti as part of an augmented reality scene. When a device that is allowed to view the graffiti is near the location, the graffiti will be downloaded to the device and displayed as part of an augmented reality scene. To further enhance the user experience, the virtual graffiti can be dynamic, changing based on a context. For example, a user may leave a virtual graffiti message that changes with, for example, outside temperature, location, weather conditions, or any other context.08-26-2010