Image memory device

Details Image memory device Image memory device

1994-01-25

1994-12-27

Groody, James J.

Television

Image signal processing circuitry specific to television

With details of static storage device

348571, 348443, H04N 701

Patent

active

053769732

ABSTRACT:
An image memory device wherein data necessary for interpolation is read out simply and successively from a frame memory at a time without requiring a complicated timing control circuit to allow interpolation processing to be performed at a high speed. Image data are temporarily stored into a plurality of parallel frame memories having an interleave construction. Conversion addresses for the frame memories are generated based on different conversion rules from a plurality of address decoders and applied in parallel at a time to the frame memories so that data at neighboring points of a coordinate position for an object of interpolation are outputted at a time from the frame memories. The neighboring point data are inputted in parallel at a time, or pipeline inputted, to an interpolation calculation circuit so that coefficients are generated from individual pipelines. Product sum calculation is performed for the coefficients and the neighboring point data.

REFERENCES:
patent: 4776025 (1988-10-01), Hosoda
patent: 4998167 (1991-03-01), Jaqua

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