Apparatus, systems and methods for providing multiple video data

Details Apparatus, systems and methods for providing multiple video data Apparatus, systems and methods for providing multiple video data

1993-11-15

1995-10-03

Groody, James J.

Television

Bandwidth reduction system

Plural video programs in single channel

348719, H04N 708

Patent

active

054556260

ABSTRACT:
A method is provided for generating a output composite video data stream. During a first phase of a set of processing phases, a frame of first video data is received and then downscaled to produce a first block of data. Also during the first phase, the first block is stored and then retrieved from a first memory space. The first block is next upscaled and then output as a first field of a composite video data stream. During a second phase of the set of processing phases, a frame of second video data is received and downscaled to produce a second block of data. Also during the second phase, the second block of data is stored and then retrieved from a second memory space. The second block is next upscaled during the second processing phase and then output as a second field of the composite video stream.

REFERENCES:
patent: 4593318 (1986-06-01), Eng et al.
patent: 4713685 (1987-12-01), Nishimura et al.
patent: 4975771 (1990-12-01), Kassatly
patent: 5193000 (1993-03-01), Lipton et al.
patent: 5341174 (1994-08-01), Xue et al.

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