Abstract: A method for loop distribution of a plurality of data blocks corresponding to objects fragments, or aggregates of objects such as alphanumeric messages, screen pages, graphic objects integrated in pages, and/or sound sequences designed to be restored by restoring means. Data blocks are distributed by stacking them into several stacks corresponding to different distribution priorities. This operation is repeated by sampling outputs of each stack based on the distribution priority of the stacks.

Abstract: A method of encoding a digitised image including several pixel lines, which consists in encoding one line with a series of sub-codes characteristic of the length of the successive fields and their colour. When the image includes several identical successive lines, the method encodes the first one of the successive lines and completes with a sub-code characterising the repetition of the line and the number of times the line is repeated following the first line. When the image includes several lines including the same succession of colours, the method encodes the first one of the several lines including the same successive code and completes the code with a succession of sub-codes characterising the repetition of the succession of colours and the length of different fields of the different lines.

Abstract: The invention concerns a method for encoding a digitised image comprising several pixel lines, which consists in encoding one line with a series of sub-codes characteristic of the length of the successive fields and their colour. The invention is characterised in that when the image comprises several identical successive lines, it consists in encoding the first of said lines and in completing with a sub-code characterising the repetition of the line and the number of times the line is repeated following said first line; when the image comprises several lines including the same succession of colours, it consists in encoding the first of said lines and in completing said code with a succession of sub-codes characterising the repetition of the succession of colours and the length of different fields of the different lines.

Abstract: The invention concerns a method for loop distribution of a plurality of data blocks corresponding to objects or fragments or aggregates of objects such as alphanumeric messages and/or screen pages and/or graphic objects integrated in pages and/or sound sequences designed to be restored by restoring means with which users are provided. The invention is characterised in that it consists in distributing the data blocks by stacking them into several stacks corresponding to different distribution priorities and in repeating the operation which consists in sampling in output of each stack a number of data blocks based on the distribution priority of said stack and in distributing the sampled data blocks, the data blocks sampled in output of each stack being, at each iteration, re-stacked in the input thereof.

Abstract: A television signal noise reduction system employs a movement detector for automatically selecting one of three parallel processing paths, the first of which passes the video signal without modification and the other two of which calculate different weighted averages of the current pixel and surrounding pixels from the current frame and the previous frame.

Abstract: A motion detector system reduces visible noise in television image signals by use of a numerical time filter. A sample memory is coupled to the output of the time filter. In the time filter, the sample of the images to be treated is combined with a corresponding and preceding sample delivered by the sample memory. A decision circuit determines whether the combination signal has a parameter of the time filter. A subtraction circuit has a first input coupled to receive the image sample which is to be treated and a second input coupled to receive the corresponding sample delivered by the sample memory. A low-pass filter has parallel inputs for receiving samples delivered by the subtracting circuit. A sign output is derived from an exclusive OR circuit coupled to a low-pass filter and a band-pass filter.