摘要:
Consumer electronic devices, such as e.g. high-definition movie players for removable storage media such as optical discs, may provide possibilities for advanced interactivity for the user, implemented as software applications. A question arising generally with such software applications is what the life cycle of such an application is, and who may control it. The invention provides a method for executing software applications within a playback device for audio-video data, wherein data from a first removable storage medium are read for a software application to be executed within said playback device, and the data comprise an indication defining a termination condition for the application. Based on said termination code and depending on how the medium holding the application is ejected, the application is terminated or may survive.
摘要:
Movies are produced in 24 Hz frame frequency and progressive scanning format (denoted 24p) for projection in film theatres, adhering to a worldwide standard for 35 mm film. However, the major TV systems in the world use interlaced scanning and either 50 Hz field frequency (denoted 50i) or 60 Hz field frequency (denoted 60i). Content providers would prefer providing single-picture-frequency single-audio-speed AV discs that can be replayed in most parts of the world. A 24p audio/video data stream is supplemented with additional 50i format data items thereby allowing 24p and 50i format replay of that data stream.
摘要:
Consumer electronic devices, such as e.g. high-definition movie players for removable storage media such as optical discs, may provide possibilities for advanced interactivity for the user, implemented as software applications. A question arising generally with such software applications is what the life cycle of such an application is, and who may control it. The invention provides a method for executing software applications within a playback device for audio-video data, wherein data from a first removable storage medium are read for a software application to be executed within said playback device, and the data comprise an indication defining a termination condition for the application. Based on said termination code and depending on how the medium holding the application is ejected, the application is terminated or may survive.
摘要:
There are DVD discs that provide a recorded video sequence with different viewing angles. However, because it takes some time to start decoding of an encoded video sequence and the different angle views each relate to corresponding differently encoded video streams, such switching causes a delayed response to a user's angle change request. It is proposed to reduce the original video resolution in favour of fast response time to video angle change requests. The available pixels within a video frame are used to store two or more video signals side by side, each one representing a different viewing angle, but the full picture area video signal is anyway decoded. The selected viewing angle video signal is re-scaled to full-size presentation.
摘要:
A process of image signal coding provides motion vectors for blocks of picture elements (pixels). An array of motion vectors for pixel blocks may be used to generate a zoom and pan vector for a full image. When the format of a vertically subsampled image is changed before coding, motion parameters for a full image are used to obtain maximum local resolution after subsampling. Remaining image areas which have not been fully motion compensated are detected by an alteration (change) detector and are vertically filtered in a field.
摘要:
Local storage on player instruments provides the ability for adding further amendments and most recent supplements to the optical disc content. A problem arising with this technically applicable possibility is the protection of copyrights bound to disc and supplement data. The present invention describes a technique to ensure a security framework that is able to handle this, by creating a virtual file system (VFS) by merging optical disc data and local storage data based upon a common identifier.
摘要:
Consumer electronic devices, such as e.g. high-definition movie players for removable storage media such as optical discs, may provide possibilities for advanced interactivity for the user, implemented as software applications. A question arising generally with such software applications is what the life cycle of such an application is, and who may control it. The invention provides a method for executing software applications within a playback device for audio-video data, wherein data from a first removable storage medium are read for a software application to be executed within said playback device, and the data comprise an indication defining a termination condition for the application. Based on said termination code and depending on how the medium holding the application is ejected, the application is terminated or may survive.
摘要:
Consumer electronic devices, such as e.g. high-definition movie players for removable storage media such as optical discs, may provide possibilities for advanced interactivity for the user, implemented as software applications. A question arising generally with such software applications is what the life cycle of such an application is, and who may control it. The invention provides a method for executing software applications within a playback device for audio-video data, wherein data from a first removable storage medium are read for a software application to be executed within said playback device, and the data comprise an indication defining a termination condition for the application. Based on said termination code and depending on how the medium holding the application is ejected, the application is terminated or may survive.
摘要:
Consumer electronic devices, such as e.g. high-definition movie players for removable storage media such as optical discs, may provide possibilities for advanced interactivity for the user, implemented as software applications. A question arising generally with such software applications is what the life cycle of such an application is, and who may control it. The invention provides a method for executing software applications within a playback device for audio-video data, wherein data from a first removable storage medium are read for a software application to be executed within said playback device, and the data comprise an indication defining a termination condition for the application. Based on said termination code and depending on how the medium holding the application is ejected, the application is terminated or may survive.
摘要:
The invention relates to a method and a device for controlling access to multiple applications which are each implemented as a client application in an operating system environment of a data processing device from a shared memory system. The problem addressed by the invention is that of providing an improved method and an improved device for controlling access to multiple applications which are each implemented as a client application in an operating system environment of a data processing device from a shared memory system, which allow an efficient exchange of data for input/output. In particular, interaction with multimedia data in such an operating environment should be optimized. The invention comprises the details of a method for controlling access to multiple applications which are each implemented as a client application in an operating system environment of a data processing device from a shared memory system which is constructed in the form of multiple memory blocks in the operating system environment, which are each assigned to one of the client applications.