VIDEO SIGNAL TRANSMITTER

摘要

PURPOSE:To attain correction with extremely reduced deterioration in picture quality by means of approximate picture elements by forming a sub-block after interleaving to provide an error detecting function for each sub-block and therefore dispersing the correcting picture elements in case an error remains. CONSTITUTION:An error correcting coder 4, an error correcting decoder 8 and a correcting part are added newly. The output data of a record side processor 3 is supplied to an interleaving device 46 via an input terminal 45. The device 46 interleaves the input data after changing their orders and impresses them to a subblock producer 47. The producer 47 divides the impressed data for each prescribed number and also produces an error detecting word and then a sub-block. The output of the producer 47 is impressed to a parity block producer 48 to produce the parity data to the prescribed sub-block length. Thus a parity block is produced. In such a way, the error corrected/coded data is applied to a modulator 5 via an output terminal 49.