DEVICE FOR REPRODUCTION OF DATA WITH ISR, RECORDING/REPRODUCTION SYSTEM AND INTERPOLATION FILTER Russian patent published in 2009 - IPC H04N7/35 H04N5/00 H03L7/00 

FIELD: instrument making.

SUBSTANCE: invention is related to device of data reproduction with ISR (interpolated synchronisation recovery), to system of recoding/reproduction and interpolation filter. Each period (Ts) of required interpolation function f(t) sampling is divided into multiple periods, for each of these periods linear interpolation is carried out, and data is calculated in each point of interpolation, within the limits of each period. Besides only binary integer-valued representative part is separated as quotient produced by means of division into integer number of sampling time instants for sampling period, and only input sampling data (Ds) for multiple binary integer-valued representative parts is captured in interpolation filter to provide for conveyor treatment. Only binary fractional representative part is separated as remainder produced in division into integer value of sampling time instants for sampling period, and coefficient of interpolation filter tap is defined in compliance with identified value, which is used as instants (mck) of sampling time.

EFFECT: production of output reproduction signals with lower distortions and update of sampling synchronisation with high speed with application of simple configuration.

9 cl, 19 dwg