Video stream composed of combined video frames and methods and systems for its generation, transmission, reception and reproduction
First Claim
1. A method for generating a video stream, the method comprising:
- inserting, in a video frame at a first resolution, a first content belonging to a video stream (F1) at a second resolution lower than said first resolution of said video frame;
inserting, in an area of the video frame formed by pixels of the video frame left free from said video stream (F1), at least a second content belonging to an information stream (F2) having, in a case where said information stream (F2) is also a video stream, a resolution equal to or less than said second resolution, where during the reproduction of one of said two video streams said video stream is shown full-screen in its entirety, or in a case said information stream (F2) is a data information stream, data encoded via a set of pixels, a number of which is less than or equal to the number of the pixels of the video frame left free by the first video stream (F1); and
making a temporal sequence of frames formed in this way so as to constitute a composite video stream (C) comprising at least two information streams, one composed of said video stream (F1) and the other composed of said information stream (F2) with content unrelated to said video stream (F1),wherein said two contents can be used independently from each other through extraction from the aforesaid video frame.
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Accused Products
Abstract
A video stream composed of combined video frames having a first resolution and include in their entirety two contents usable through extraction from the aforesaid video frame: a first content belonging to a video stream (F1) at a second resolution lower than the first resolution of the frame; and, in the area of the frame formed by the remaining pixels, at least a second content belonging to an information stream (F2) having, in the case where it is also a video stream, a resolution equal to or less than the second resolution, where during the fruition of one of the two video streams it is shown full-screen in its entirety, or in the case of a data information stream, data encoded via a set of pixels, the number of which is less than or equal to the number of pixels left free by the first video stream.
29 Citations
20 Claims
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1. A method for generating a video stream, the method comprising:
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inserting, in a video frame at a first resolution, a first content belonging to a video stream (F1) at a second resolution lower than said first resolution of said video frame; inserting, in an area of the video frame formed by pixels of the video frame left free from said video stream (F1), at least a second content belonging to an information stream (F2) having, in a case where said information stream (F2) is also a video stream, a resolution equal to or less than said second resolution, where during the reproduction of one of said two video streams said video stream is shown full-screen in its entirety, or in a case said information stream (F2) is a data information stream, data encoded via a set of pixels, a number of which is less than or equal to the number of the pixels of the video frame left free by the first video stream (F1); and making a temporal sequence of frames formed in this way so as to constitute a composite video stream (C) comprising at least two information streams, one composed of said video stream (F1) and the other composed of said information stream (F2) with content unrelated to said video stream (F1), wherein said two contents can be used independently from each other through extraction from the aforesaid video frame. - View Dependent Claims (2, 3, 5, 6, 7, 8, 9, 10, 11, 12)
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4. A method for reproducing a video stream constituted by a temporal sequence of video frames at a first resolution containing a first content belonging to a video stream (F1) at a second resolution lower than said first resolution, and, in an area of the video frame formed by pixels left free from said video stream (F1), at least a second content belonging to an information stream (F2) having, in a case where said information stream (F2) is also a video stream, a resolution equal to or less than said second resolution, or in a case said information stream (F2) is a data information stream, data encoded via a set of pixels, the number of which is less than or equal to the number of pixels left free by the first video stream, said method comprising the steps of:
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receiving a multimedia stream (FM); decapsulating and decoding said multimedia stream to obtain a composite video stream (C); demultiplexing said composite video stream (C) to separately obtain said video stream (F1) and said information stream (F2), wherein said video stream (F1) is unrelated to said information stream (F2); and reproducing at least one of said video stream (F1) and said information stream (F2), independently from each other. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification