| 摘要 |
A high-definition television system for processing and transmitting a production television signal (e.g., a signal originating in a television camera or production facility) in one aspect of the invention includes a filter for spatially filtering the production signal to remove spatial-frequency components of relatively lesser importance to perceived image quality, 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. |
