Rate converter for converting data rate

Coded data generation or conversion – Digital code to digital code converters – Data rate conversion

Patent

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Details

H03M 700

Patent

active

055128947

ABSTRACT:
A rate converter for converting data rate is adapted to hold, at an output clock rate, by using a plurality of latch circuits, respective signals from the output stages of a shift register operative at an input clock rate to multiply, at the output clock rate by using a plurality of multipliers, held signals from the latch circuits by filter coefficients that a plurality of coefficient generators sequentially generate to add the multiplied outputs by using an adder to provide a rate converted output signal. Thus, this rate converter makes it possible to carry out rate conversion by a single digital filter without necessity of digital filters operative at a clock rate of the least common multiple of the input clock rate and the output clock rate.

REFERENCES:
patent: 5272524 (1993-12-01), Nagumo et al.

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