CCD DATA PROCESSOR OF DIGITAL HOLOGRAPHIC DATA STORAGE SYSTEM

摘要

PURPOSE: A CCD(charge coupled device) data processor is provided to quickly cut and sample binary data of page type outputted from a CCD with a filter. CONSTITUTION: A filter(200) cuts a background screen without passing a light through a pixel corresponding to the background screen. To embody a playback screen enlarged in a specific magnification to a screen of original pixel numbers, the filter(200) passes the light of corresponding pixel to selectively output only one pixel among every 6X6 pixels in a six magnifications. The played playback screen is cut and sampled at the same time by passing the filter(200). The cut and sampled screen is converted to an electric signal in a CCD(210) and inputted into a limited value processing unit(220). The limited value processing unit(220) output in exact binary data by calculating a limited value with a signal from the CCD(210) as an input. A decoder(230) decodes the data outputted from the limit value processing unit(220).