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| OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram of an image pickup apparatus according to the ... |
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| Image pickup apparatus |
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| Visible light and near infrared imaging device |
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| Noise reduction system for color television signal |
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| Video level control |
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| Ghost cancelling system that cancels ghosts from video signals with a transversal filter |
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| Appliance and method of using same having a send capability for stored data |
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Architecture with centralized single memory for the transfer of video images
| Details |
Inventors: Bourre, Thierry; Labranche, Patrick; Rebiai, Mohamed; Bruhat, Patrice;
Assignee: Thomson Broadcast Systems (Cergy-Saint-Christophe, FR)
Primary Examiner: Peng; John K.
Assistant Examiner: Desir; Jean W.
Attorney, Agent or Firm: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
The invention relates to an architecture making it possible to store and transfer still or moving video images, the said architecture comprising at least one input circuit (E1, E2, . . . , En) allowing access for data intended to make up video images, a memory area (M) making it possible to store video images, at least one video image output circuit (S1, S2, . . . , Sj) and a video bus (B) intended to provide for the transfer of information between the memory area (M), the input circuit and the output circuit, characterized in that the memory area (M) is a general-purpose memory and in that the video bus (B) has a width L greater than or equal to the width of the memory area (M). The general-purpose memory is operated in a centralized manner by a control circuit (CTRL). The invention applies to computer platforms dedicated to the transfer of Broadcast quality images or alternatively to video devices for built-up image animation. The architecture according to the invention can also comprise video image processing circuits (T1, T2, . . . , Tn) |
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DETAILED DESCRIPTION The present invention relates to an architecture making it possible to store and transfer still or moving digital video images, the said architecture comprising at least one input circuit allowing access for data intended to make up a video image, a memory area making it possible to store video images, at least one output circuit making it possible to extract at least one video path from the said architecture and a video bus intended to provide for the transfer of information between the memory area, the input circuit and the output circuit, characterized in that the memory area is a general-purpose memory and in that the video bus has a width greater than or equal to the width of the memory area.
The input circuit allowing access for data intended to make up a video image may be a straightforward video input.
It may also be an input making it possible to draw video animations, or else an input of the "bit map" file type.
According to the invention the video frames constituting the various video paths are stored in a single general-purpose memory.
"General-purpose" memory should be understood to mean a memory no part of which is particularly dedicated to a path.
Depending on the required use, this memory can contain a number of units with several million frames or images.
Advantageously the architecture according to the invention allows the simultaneous use of several paths, it being possible for each of them to be constituted by any sequence of frames available in the memory.
It is then possible to modify, insert or delete frames in any sequence whatsoever.
The output from the system thus obtained can also be recorded in the single memory and become in turn a source sequence.
With the exception of the video formatting/deformatting sub-assemblies, the system is advantageously independent of the dimension of the images, of the scanning system and of the frequencies of the video standard used at output.
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Image Analysis 
