Video sample rate converter

Details Video sample rate converter Video sample rate converter

1991-04-12

1993-01-26

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358140, 358183, 358 22, H04N 701, H04N 1102

Patent

active

051826330

ABSTRACT:
A video sample rate converter for converting decoded SMPTE D2 interleaved component video to SMPTE D1 interleaved component video includes a single modified multi-tap finite impulse response ("FIR") digital filter which alternately functions as a data selector and two-point linear interpolator, and as a four-point polyphase interpolator. The FIR filter uses time variant switched filter coefficients and a selectively inhibited output clock signal.

REFERENCES:
patent: 4837723 (1989-06-01), Peacock
patent: 4979022 (1990-12-01), Snashall et al.
patent: 4991010 (1991-02-01), Hailey et al.
patent: 5057911 (1991-10-01), Stec et al.
patent: 5079734 (1992-01-01), Riley

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