| 摘要 |
PURPOSE:To compress and transmit a wide-band signal like a high definition television signal. CONSTITUTION:In a reproducing system, average error data epsilon constituting block data SD inputted from an input terminal 33 is supplied to an error register 37, and polarity data Q is supplied to a polarity register 39, and a polarity Qi is given to average error data 2 by a polarity giving circuit 38. Extracted sampling data A to H are delayed by delay circuits 34 to 36 and are inputted to subtractors 40 and 41, and the outputs have polarities discriminated by a weighting discrimination circuit 42, and the output is outputted to a multiplier 43. The multiplier 43 multiplies average error data epsilon outputted from the polarity giving circuit 38 and a weighting coefficient alphai and outputs weighting error data epsiloni' to an adder 44, and it is added to average value data I', J',... outputted from an averaging circuit 30 to output interpolation data I'', J'',.... A converting circuit 45 inserts interpolation data I'', J'',... to extracted sampling data A to H outputted from the delay circuit 35, and the result is outputted from an output terminal 46. |
