Apparatus for computing interpolation weighting factor for time

Details Apparatus for computing interpolation weighting factor for time Apparatus for computing interpolation weighting factor for time

1990-01-30

1990-10-16

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358138, 358140, H04N 712

Patent

active

049639641

ABSTRACT:
In the context of a video signal raster mapper, apparatus is disclosed to facilitate time compression or expansion by developing an auxiliary signal (DX) representing a fractional position of output pixel samples between input pixel samples. A multiplexer selectively applies values from two registers to an accumulator for controlling the accumulator value in a manner appropriate for compression or expansion.

REFERENCES:
patent: 4855811 (1989-08-01), Isnardi

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