PICTURE SIGNAL PROCESSOR

摘要

Interlace scan PALplus signals are fed to a 133-line delay (32) which is a delay element of 133 lines. The output of the delay element is fed to field memories (23 and 25). The memory (23) is a first memory for one-field delay and the output of the memory (23) is fed to a field memory (24) which is provided as a second memory. The memory (24) performs shuffling on a field A and, at the same time, data in the memory (24) is read at a double speed so that the same field A may appear continuously four times. The field memory (25) which is provided as a third memory is controlled so that readout from the memory (25) may be started prescribed time after write and performs shuffling on a field B. At the same time, readout from the memory (25) is performed at a double speed so that the same field B may appear continuously four times. The picture signals read out from the memories (24 and 25) are fed to a vertical filter/median processing section (26) which is provided as a scanning line interpolating means.