RECORDING AND REPRODUCING COLOUR TELEVISION SIGNALS

摘要: 1276161 Colour television ELECTRONIC RESEARCH CORP 3 June 1969 28117/69 Heading H4F [Also in Division G5] Relates to a magnetic recording system which colour sequential video signals are recorded parallel tracks on tape and each adjacent pair of is played back simultaneously. In first embodiment, Fig. 5, the scanning disc 2 has additional heads 60 70 vertically spaced by one track width w from conventional 6 7. record mode field information using 7 (or 70), red even being head 6, blue odd 7, green &c. playback complete signal train passed through preamplifier demodulator same but delayed another (Fig. not shown), resulting demodulated gated into three channels for red, with normal present two out every periods. second embodiment configuration as shown Figs. 8 9 180 degrees 80, # 80 respectively, stacked {w-(#/180 degrees)w} above respectively. With vertical interval periods 14a, 14b, 14c alternately staggered 10 period 12b , 12d comprises e.g. sync. pulses, that at end 12a, 12c During example will scan this when contact lost, so no difference detected between actual would be preferred 5. arrangement switching takes place during pulse does effect picture content. Reference made line signals. Half many may employed traversing 360 instead assembly.