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EP0443676A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Transmission system for digitised television images

Assignee: Koninklijke Philips NV
•
Filing: 1991-02-18
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Granted: —
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Expires: 2011-02-18
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Abstract

Abstract A series of images of a full motion video scene is divided into a number of sub-series which, when interleaved, represent the original series. A ranking order increasing magnitude is allocated to consecutive sub-series. Each image of a sub-series is converted into an image data block, while images from one or more sub-series having a lower order of precedence are considered for this conversion. A packet header indicating the ranking order of the sub-series with which the corresponding image is associated is added to each image data block. The display apparatus is adapted to select those image data blocks which have predetermined packet headers and to subject the image data blocks thus selected to a decoding process. The number of different packet headers which is selected determines the temporal resolution of the scene to be displayed.

Inventors

  • 👤 Jan Van Der Meer

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 16:22
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/79; H04N9/80; H04N9/804; H04N9/8042; H04N19/00; H04N19/50; H04N19/503; H04N19/51; H04N19/577; H04N5/00; H04N5/76; H04N5/91; H04N5/92; H04N5/926; H04N5/9261; H04N19/30; H04N19/39; H04N5/84; H04N5/85

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 130 words
A method of transmitting a series of images of a full motion video scene in which each image is converted by means of an encoding algorithm into an image data block comprising so much digital information that each pixel of the image can be reconstructed, characterized in that the images of the series are subjected to a hierarchic encoding process in which the original series of images is considered as a number of interleaved sub-series having an increasing ranking order and in which images from one or more sub-series having a lower ranking order are considered for encoding an image of a sub-series, and in that a packet header indicating the ranking order of the sub-series with which the corresponding image is associated is added to each image data block.
Claim 2
Dependent Claim 121 words
An apparatus for displaying a full motion video scene whose composite images are each converted into image data blocks in accordance with the method as claimed in Claim 1, which apparatus is adapted to receive the image data blocks, to store for each pixel a codeword corresponding to the color of said pixel, to reproduce the stored codewords in the sequence of desired display, to convert the reproduced codewords into analog signals for display on a display screen, characterized in that said apparatus is further adapted to select those image data blocks of the received image data blocks which have predetermined packet headers, and to subject the image data blocks thus selected to a hierarchic decoding process for generating said codewords.
Claim 3
Dependent Claim 39 words
An optically readable disc on which a series of images of a full motion video scene is stored in the form of a series of image data blocks obtained in accordance with the method as claimed in Claim 1.

References Cited (Backward Citations)

DE2835434A1 Cited
US4807053A Cited
US4849810A Cited
EP0340843A1 Cited
EP0346636A2 Cited
EP0346637A2 Cited

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