Adaptive M-tile sample producer

摘要

Apparatus is disclosed for adaptively producing a sample having a desired M-tile value, and includes a source of a set of input samples and a source of a control signal. Means are provided for adaptively masking or replacing a subset of the input samples with samples having a predetermined value in response to the control signal. A sorter receives the resulting masked samples and produces an ordered set of samples in rank order. Sample selecting means coupled to the output of the sorter provides an output sample from the location in the ordered set of samples corresponding to the desired M-tile, in response to the control signal.