GB1254295A - Recording apparatus - Google Patents

Abstract

1,254,295. Television. FERNSEH G.m.b.H. 16 July, 1969 [27 Nov., 1968], No. 56357/68. Heading H4F. To facilitate editing magnetic tape on which is recorded a television signal, additional information, such as the tune of recording, is simultaneously recorded during the vertical blanking periods. Thus, in Fig. 1, incoming television signals 1 are mixed at 2 with signals from a camera 7 viewing a representation 8 and fed to a recorder 9 and a monitor 14. A synchronizer 3 and pulse generator 4 provide the camera 7 with horizontal sync. signals H, vertical sync. V delayed for half a field period at 6 so that video signals produced on viewing a centrally placed representation 8 occur during the vertical blanking period of signal 1, and blanking signals A which blank the output of camera 7 during the horizontal and vertical sync. pulses of signal 1. The recorder 9 provides an output at 15 for transmission purposes, at which the additional information has been blanked out again, and an unblanked output at 10 for viewing on a monitor 13 which shows the information at the picture margin. In a second embodiment, Fig. 4 (not shown), a readout unit delivers information simultaneously available at the outputs of a digital quartz clock, i.e. the time and date, as successive pulses to the mixer 2, under the action of integrated or differentiated horizontal and vertical sync. signals derived from the signal 1.