METHOD AND SYSTEM FOR TRANSMITTING AND PROCESSING HIGH DEFINITION DIGITAL VIDEO SIGNALS
First Claim
1. A method of transmitting a digital video stream, said video stream having a plurality of image frames and being characterized by a vertical resolution and a frame rate, said method comprising:
- a. applying a temporal multiplexing operation to the image frames of said video stream in order to generate a compressed video stream having the same vertical resolution and half the frame rate of said video stream;
b. transmitting said compressed video stream.
1 Assignment
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Accused Products
Abstract
A method of transmitting a digital video stream having a plurality of image frames and being characterized by a vertical resolution and a frame rate. A temporal multiplexing operation is applied to the image frames of the video stream in order to generate a compressed video stream having the same vertical resolution and half the frame rate of the video stream. This compressed video stream is then transmitted in lieu of the original video stream. At the receiving end, temporal de-multiplexing and pixel interpolation operations are applied to the frames of the compressed video stream in order to reconstruct the original video stream.
27 Citations
21 Claims
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1. A method of transmitting a digital video stream, said video stream having a plurality of image frames and being characterized by a vertical resolution and a frame rate, said method comprising:
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a. applying a temporal multiplexing operation to the image frames of said video stream in order to generate a compressed video stream having the same vertical resolution and half the frame rate of said video stream; b. transmitting said compressed video stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of transmitting a high definition digital image stream, said image stream being characterized by a frame rate of at least 60 frames per second, said method comprising:
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a. for each discrete pair of time-successive first and second frames of said stream; i. sampling the pixels of said first and second frames according to a staggered quincunx sampling pattern, thereby decimating from each frame half a number of original pixels; ii. creating a new frame by juxtaposing the sampled pixels of said first frame and the sampled pixels of said second frame; b. transmitting said new frames in a new image stream characterized by half the frame rate of the original image stream. - View Dependent Claims (10)
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- 11. A method of processing a compressed digital video signal, said compressed video signal having a plurality of image frames and being characterized by a vertical resolution and a frame rate, said method comprising applying a temporal demultiplexing operation to the image frames of said compressed video signal in order to generate a new video signal having the same vertical resolution and double the frame rate of said compressed video signal.
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18. A system for transmitting a digital video stream, said video stream having a plurality of frames and being characterized by a vertical resolution and a frame rate, said system comprising:
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a. a processor for receiving said video stream, said processor being operative to apply a temporal multiplexing operation to the frames of said video stream in order to generate a new video stream having the same vertical resolution and half the frame rate of said original video stream; b. a compressor for receiving said new video stream and being operative to apply a compression operation to said new video stream for generating a compressed video stream; c. an output for transmitting said compressed video stream.
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19. A system for processing a compressed video stream, said compressed video stream having a plurality of frames and being characterized by a vertical resolution and a frame rate, said system comprising:
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a. a decompressor for receiving said compressed video stream, said decompressor operative to apply a decompression operation to the frames of said compressed video stream for generating a decompressed video stream; b. a processor for receiving said decompressed video stream from said decompressor, said processor being operative to apply a temporal demultiplexing operation to the frames of said decompressed video stream in order to generate a new video stream having the same vertical resolution and double the frame rate of said compressed video stream; c. an output for releasing said new video stream.
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20. A processing unit for processing frames of a digital video stream, said video stream characterized by a vertical resolution and a frame rate, said processing unit operative to apply a temporal multiplexing operation to the frames of said video stream in order to generate a compressed video stream having the same vertical resolution and half the frame rate of said video stream.
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21. A processing unit for processing frames of a compressed video stream, said compressed video stream characterized by a vertical resolution and a frame rate, said processing unit operative to apply a temporal demultiplexing operation to the frames of said compressed video stream in order to generate a new video stream having the same vertical resolution and double the frame rate of said compressed video stream.
Specification