专利名称：Improved definition television systems发明人：Schreiber, William F.申请号：EP89300869.8申请日：19890130公开号：EP0326435A2公开日：19890802
摘要：A high-definition television system for processing and transmitting a productiontelevision signal (e.g., a signal originating in a television camera or production facility) inone aspect of the invention includes a filter for spatially filtering the production signal toremove spatial-frequency components of relatively lesser importance to perceived imagequality, and a transmitter for transmitting selected remaining components, i.e.,
components of relatively greater importance to perceived image quality, using double-sideband quadrature modulation with a Nyquist bandwidth filling the available channel.
申请人：MASSACHUSETTS INSTITUTE OF TECHNOLOGY
地址：77 Massachusetts Avenue Cambridge, MA 02139 US
国籍：US
代理机构：Deans, Michael John Percy
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