Abstract: A sequence of 3D hand poses may be used to define a hand gesture, and different hand gestures may be represented by different sequences of poses. One or more hand gestures may be used to generate a virtual input device. Another one or more hand gestures may subsequently be used to provide input via the virtual input device.

Abstract: In a content browsing environment, a system analyzes content to identify audio commands to be made available to users. The audio commands may be chosen so that they are easily differentiable from each other when using machine-based speech recognition techniques. When the content is displayed, the system monitors a user's speech to detect user utterances corresponding to the audio commands and performs content navigation in response to the user utterances.

Abstract: Techniques are described for performing automatic focusing of a projected image on a mobile projection surface. Specific regions of the projected image are identified that are likely to be desired to stay in optimal focus, and attributes of those specific regions, such as sharpness and contrast, can be used to determine the need to refocus the image. Advanced knowledge of the image data being projected can be utilized to determine the specific regions of the projected image that require monitoring for optimal focusing.

Abstract: Methods of processing touch screen events include generating a touch-enabled user interface (UI) with a source device that provides a source of content for being rendered on a separate rendering device having a touch-enabled display surface. Digital data is transferred from the source device to the rendering device via a communication link, such as a HDMI cable. The data transferred includes data providing the touch-enabled UI. Information is received by the source device via the communication link concerning touch screen events occurring on the touch-enabled UI rendered on the touch-enabled display surface of the rendering device. The touch screen events that are received from the rendering device are processed by the source device. Apparatus is also disclosed.