摘要:
The invention relates to a method and a device for time-shifted playback of audio/video data. The device comprises: means of storing audio/video data received, means of recording said audio/video data received on said storage means, means of displaying said audio/video data received as it is recorded, means of pausing at a given time the display of said audio/video data while continuing to record it. According to the invention, on switching back to playback mode, said display means display a summary of the audio/video data received during the pause before resuming the playback of said audio/video data received in real time.
摘要:
The invention relates to a method and a device for time-shifted playback of audio/video data. The device comprises: means of storing audio/video data received, means of recording said audio/video data received on said storage means, means of displaying said audio/video data received as it is recorded, means of pausing at a given time the display of said audio/video data while continuing to record it. According to the invention, on switching back to playback mode, said display means display a summary of the audio/video data received during the pause before resuming the playback of said audio/video data received in real time.
摘要:
A device and a process for compressing video documents. The process includes decomposition of the video document into shots, extraction of images representative of the said shots, measurement of the distances between the said representative images, grouping of the images whose distance is less than a predetermined threshold into a group of images, calculation of the relative cost of coding of each image with respect to the other images of the group of images. The process further includes calculation of a minimum spanning tree for each group of images minimizing the cost of coding of each group of images and coding of each group of images by browsing the images in the order given by the said spanning tree.
摘要:
Method to display an image using four or more primaries having different spectral distributions that are distributed into three groups of primaries, wherein, in a visual color space, all primaries belonging to the same group have the same visual color and are metamehc. Each image being got from a combination of three primary images and each primary image being associated with each visual color of a group, the different primaries of each group are spatially or sequentially distributed over the primary image associated with this group, then allowing an efficient anti-copy protection based on metamerization of images, without any supplemental video processing.
摘要:
The present invention relates to a method of selecting sound contents transmitted by transmission channels and received by an audio or audiovisual receiver. A user first selects a received content and starts playback. Then, the receiver automatically searches among the contents transmitted by the transmission channels for a content whose audio parameters have values close to the values of a previously selected content and plays it back at the end of the current content. The operation is renewed each time the current content ends. According to a refinement, the receiver has a memory that makes it possible to offset the playback of the content in time and thus best synchronize the playback of the various selected contents. The invention also relates to an appliance capable of selecting audio contents originating from several channels and having similar audio characteristics, and playing them back automatically.
摘要:
Method to display an image using four or more primaries having different spectral distributions that are distributed into three groups of primaries, wherein, in a visual color space, all primaries belonging to the same group have the same visual color and are metamehc. Each image being got from a combination of three primary images and each primary image being associated with each visual color of a group, the different primaries of each group are spatially or sequentially distributed over the primary image associated with this group, then allowing an efficient anti-copy protection based on metamerization of images, without any supplemental video processing.
摘要:
The present invention relates to a method of navigation within a collection of sound documents accessible from a receiver furnished with a display device. The method comprises a first step of analysis of the documents so as to determine audio parameters termed > specific to each document. Then, graphics identifiers of part at least of the sound documents are positioned within a graphics page, the arrangement of the graphics identifiers being dependent on the previously calculated parameters. Finally, the method comprises a step of automatic navigation by reproducing successively the sound documents according to a determined strategy taking into account the position of the identifiers of the documents in the graphics page.The invention also relates to a device able to execute a software navigation module for the reproduction of the sound documents according to a determined strategy and according to the position of the representations of the documents in a graphics page.
摘要:
Device comprising: a rear panel comprising a network of backlighting elements, a front panel comprising a network of optical valves which are each capable of modulating the brightness of a single primary colour. By the modulation of chrominance which is added to the modulation of luminance for the backlighting elements of the rear panel, the device according to the invention makes it possible to display the images with even more contrast and better quality. A specific control mode makes it possible to avoid the colour “interferences”.
摘要:
The present invention relates to a method for navigating over documents represented by identifiers displayed on a navigation menu. Each document is associated with a plurality of numerical values characterizing it according to a plurality of criteria. Each identifier of a document is placed at a position dependent on a part of the parameter values associated with this document. The whole set of the documents is subdivided into a given number of regions. The sums of the values associated with all the documents of a region and corresponding to a certain number of criteria are virtually equal for each region. The outer contour of the regions is displayed so as to enable its selection. The selection of a region triggers the display in full screen mode of all of the identifiers of the selected region. The invention also relates to a display device capable of executing the navigation method.
摘要:
The invention relates to a projection system for displaying at least one visual image based on three primary colours, comprising a signal processing unit for converting said visual image into at least a visual image based on four primary colours, a frequency band being associated to each colour primary, first display means for displaying three first primary colours of said visual image on a screen and second display means for displaying at least the fourth primary colour of said visual image on said screen. According to the invention, the system further comprises optical filtering means that are adapted to enhance the separation between the frequency spectrum of the first three primary colours of the first display means and the frequency spectrum of the at least fourth primary colour of the second display means. Application to anti-camcorder systems.