Recording/reproducing apparatus employing sum and difference sequential circuitry for lines adjacent in the second or third dimensional direction followed by time base conversion circuitry

摘要

The system is made up of signal conversion unit for converting a video signal into two-line sum signal and difference signal for every two lines, time base conversion unit for time base converting the signals so that the transmission band of the difference signal is lower than the transmission band of the sum signal, and signal multiplexing unit for time-sharing multiplexing a time base converted sum signal and a time base converted difference signal.