INPUT SIGNAL PROCESSOR, SAMPLE PROCESSING FILTER, INPUT SIGNAL FILTERING METHOD AND HIGH DEFINITION TELEVISION RECEIVER

摘要

PURPOSE:To obtain a received image with high accuracy by allowing an interpolation filter to implement interpolation while using data of a border area of adjacent sections, expanding an image compressed in the horizontal direction and providing an output from a converter such as a section raster. CONSTITUTION:A deformat router 110 divides a demodulated bit stream into four, in this case and they are fed respectively to decoders 111a, 111b, 111c, 111d, in which picture elements are decoded. The picture elements are given to variable length decoders 112a, 112b, 112c, 112d. The decoders provide an output of coefficient data and auxiliary information to one of inverse discrete cosine transformation IDCT processors 114a, 114b, 114c, 114d. A coefficient data signal CD and a control signal IDCONT are fed to an interpolation filter 118 via motion compensation processors 116a, 116b, 116c, 116d or the like. The filter 118 uses data of a border area of adjacent sections to implement interpolation, extends the image and provides an image with high accuracy via a section raster and an HD converter 120.