Abstract: A virtual reality (VR) system includes a VR display device, a first VR controller, a mobile device, and a VR processing device. The VR display device is configured to display a VR environment corresponding to a position and rotating angles of the VR display device. The mobile device is attached to the first VR controller. The VR processing device is configured for acquiring a position and rotating angles of the first VR controller; and transmitting the position and the rotating angles of the first VR controller to the mobile device via a network, so as to allow the mobile device to operably display a VR object of the VR environment corresponding to the position and the rotating angles of the first VR controller.

Abstract: A virtual reality (VR) system includes a VR display device, a first VR controller, a mobile device, and a VR processing device. The VR display device is configured to display a VR environment corresponding to a position and rotating angles of the VR display device. The mobile device is attached to the first VR controller. The VR processing device is configured for acquiring a position and rotating angles of the first VR controller; and transmitting the position and the rotating angles of the first VR controller to the mobile device via a network, so as to allow the mobile device to operably display a VR object of the VR environment corresponding to the position and the rotating angles of the first VR controller.

Abstract: Disclosed is a double-bead horizontal and vertical spirit level having a transparent tube contains an air bubble, a basic liquid and bead insoluble in the basic liquid and having a density greater than that of the basic liquid. By comparing the relative positions of the air bubble and bead, the spirit level gives precise measurements. An apparatus using the spirit level and protractor can measure horizontal tilt angles of upper and lower surfaces, and vertical tilt angle of the vertical plane; it can also be further combined with a laser pen to measure the angle of elevation, distance, height of a remote object, tilt angles, draw a horizontal and plumb line. An apparatus where the long axis of spirit level is perpendicular to the axis of pivot, the long axis doesn't need to pass the axis of pivot and the space could be used to install a laser pen.

Abstract: Disclosed is a double-bead horizontal and vertical spirit level having a transparent tube contains an air bubble, a basic liquid and bead insoluble in the basic liquid and having a density greater than that of the basic liquid. By comparing the relative positions of the air bubble and bead, the spirit level gives precise measurements. An apparatus using the spirit level and protractor can measure horizontal tilt angles of upper and lower surfaces, and vertical tilt angle of the vertical plane; it can also be further combined with a laser pen to measure the angle of elevation, distance, height of a remote object, tilt angles, draw a horizontal and plumb line. An apparatus where the long axis of spirit level is perpendicular to the axis of pivot, the long axis doesn't need to pass the axis of pivot and the space could be used to install a laser pen.

Abstract: Systems and methods for translating user input in a high definition video playback system are disclosed. A disc viewer is configured to execute at least one user interactive program stored on a high definition optical disc defining a user interface. The user interactive program defines a user interface and a plurality of keyboard event handlers for interaction with the user interface. The user interface includes a plurality of selectable user interface elements. A user interface renderer is configured to encode for display the user interface. A non-keyboard input translator is configured to receive a non-keyboard user input translates it into at least one keyboard event.

Abstract: The present invention relates generally to a method for dynamically displaying a control bar of a multimedia player, wherein one subjective thereof is to prevent overlap occurred to the menu image provided by a multimedia source. The method is preferably used for a digital versatile disc with high storage capacity, for example, the Blu-ray disc. According to the embodiment of the present invention, the method includes a first step of retrieving an Interactive Graphic (IG) stream from a disc, in which the IG stream defines an interactive graphic to be displayed. The method next goes to detect a trigger event of displaying a control bar in response to a user's operation. Further, an available region of the screen and a displaying mode are determined after analyzing the IG stream. Finally, the control bar, as the displaying mode describes, is show on the screen.

Abstract: The present invention relates generally to a method for dynamically displaying a control bar of a multimedia player, wherein one subjective thereof is to prevent overlap occurred to the menu image provided by a multimedia source. The method is preferably used for a digital versatile disc with high storage capacity, for example, the Blu-ray disc. According to the embodiment of the present invention, the method includes a first step of retrieving an Interactive Graphic (IG) stream from a disc, in which the IG stream defines an interactive graphic to be displayed. The method next goes to detect a trigger event of displaying a control bar in response to a user's operation. Further, an available region of the screen and a displaying mode are determined after analyzing the IG stream. Finally, the control bar, as the displaying mode describes, is show on the screen.

Abstract: The present invention relates generally to a method for dynamically displaying a control bar of a multimedia player, wherein one subjective thereof is to prevent overlap occurred to the menu image provided by a multimedia source. The method is preferably used for a digital versatile disc with high storage capacity, for example, the Blu-ray disc. According to the embodiment of the present invention, the method includes a first step of retrieving an Interactive Graphic (IG) stream from a disc, in which the IG stream defines an interactive graphic to be displayed. The method next goes to detect a trigger event of displaying a control bar in response to a user's operation. Further, an available region of the screen and a displaying mode are determined after analyzing the IG stream. Finally, the control bar, as the displaying mode describes, is show on the screen.

Abstract: Systems and methods for translating user input in a high definition video playback system are disclosed. A disc viewer is configured to execute at least one user interactive program stored on a high definition optical disc defining a user interface. The user interactive program defines a user interface and a plurality of keyboard event handlers for interaction with the user interface. The user interface includes a plurality of selectable user interface elements. A user interface renderer is configured to encode for display the user interface. A non-keyboard input translator is configured to receive a non-keyboard user input translates it into at least one keyboard event.

Abstract: A method and system for simultaneously displaying multiple video angles of multimedia content onto a single display device includes: reading a video source signal from the multimedia content; demultiplexing the video source signal into a plurality of video angles; decoding at least two of the plurality of video angles according to an encoding scheme of the multimedia content; rendering at least two of the decoded video angles; composing at least two of the rendered video angles into a final video signal; and outputting the final video signal onto the single display device.