Abstract: Embodiments of the present invention provide a method and apparatus for maintaining smooth video transition between distinct applications. Preferably, the apparatus implementing the present invention includes a processor, a secondary memory and a system memory. In providing a smooth transition between two applications, the apparatus and method provides synchronization of the video and graphics components while transitioning from a first application to a second application. If there is no video component in either application, no action is needed to provide a smooth transition between applications, and when only the first application includes a video component, the video component need only be tamed off for smooth transition between the applications to occur.

Abstract: Embodiments of the present invention provide a method and apparatus for maintaining smooth video transition between distinct applications. Preferably, the apparatus implementing the present invention includes a processor, a secondary memory and a system memory. In providing a smooth transition between two applications, the apparatus and method provides synchronization of the video and graphics components while transitioning from a first application to a second application. If there is no video component in either application, no action is needed to provide a smooth transition between applications, and when only the first application includes a video component, the video component need only be turned off for smooth transition between the applications to occur.

Abstract: Closed captioning information is provided regarding the location of a speaker, and when the text is spoken. An audio/video signal includes a video data and the closed captioning information. The closed captioning information includes a time index, a closed captioning text, and positioning information. The positioning information indicates a position within a frame of the video data, and is associated with the closed captioning text for a given time index. The position corresponds to the speaker who is speaking the associated closed captioning text. A decoder device decodes the closed captioning information to determine the position of the speaker within the video data, and the time index to correlate the closed captioning text and positioning information to a specific frame of video data. The video data is preferably scaled to provide a less than full screen video.

Abstract: Embodiments of the present invention provide a method and apparatus for maintaining smooth video transition between distinct applications. Preferably, the apparatus implementing the present invention includes a processor, a secondary memory and a system memory. In providing a smooth transition between two applications, the apparatus and method provides synchronization of the video and graphics components while transitioning from a first application to a second application. If there is no video component in either application, no action is needed to provide a smooth transition between applications, and when only the first application includes a video component, the video component need only be turned off for smooth transition between the applications to occur.

Abstract: Embodiments of the present invention provide a method and apparatus for maintaining smooth video transition between distinct applications. Preferably, the apparatus implementing the present invention includes a processor, a secondary memory and a system memory. In providing a smooth transition between two applications, the apparatus and method provides synchronization of the video and graphics components while transitioning from a first application to a second application. If there is no video component in either application, no action is needed to provide a smooth transition between applications, and when only the first application includes a video component, the video component need only be turned off for smooth transition between the applications to occur.

Abstract: The present invention includes a method and device that allows efficient mixing of multiple video images with a graphics screen while utilizing only one video buffer. The present invention partitions the sole video buffer, pre-scales the plurality of video images and inserts them into the partitioned video buffer in a predetermined range of buffer addresses. The present invention mixes the partitioned video including the pre-scaled video images with the graphics screen to produce a video display including both a video screen and a graphics screen.

Abstract: Embodiments of the present invention provide a method and apparatus for maintaining smooth video transition between distinct applications. Preferably, the apparatus implementing the present invention includes a processor, a secondary memory and a system memory. In providing a smooth transition between two applications, the apparatus and method provides synchronization of the video and graphics components while transitioning from a first application to a second application. If there is no video component in either application, no action is needed to provide a smooth transition between applications, and when only the first application includes a video component, the video component need only be turned off for smooth transition between the applications to occur.

Abstract: A live video is directed to a display buffer of the device. The device is preferably a set top box and a live video frame stored in the display buffer is preferably displayed by a display device coupled to the set top box. The display device is preferably a television. A capture command preferably signals the set top box to store one or more frames of the currently displayed live video. Upon receiving the capture command, the live video is paused, thereby preventing the display buffer from loading subsequent live video frames. The live video is then re-directed to a capture buffer, the live video is un-paused, and a current live video frame is captured from the capture buffer. The captured frame is then stored using a conventional storage medium. After the frame is captured, the live video is re-directed from the capture buffer to the display buffer to resume display of the live video.

Abstract: A watchdog controller securely interrogates a main system CPU of an application module to determine if the main system CPU and its associated programming software are trustworthy. The watchdog controller and the application module preferably reside within a set top box. The watchdog controller includes a watchdog CPU which generates a digitally signed status request message using a watchdog certificate. The status request message is received by the main system CPU and validated for authenticity. The main system CPU then generates a status response message using a system certificate. The status response message is received by the watchdog processor and validated for authenticity. If the status response message is not valid then the watchdog controller preferably triggers a system reset. After the system is reset, a similar attempt is made to receive a valid status response message from the main system CPU.