In a picture information processing apparatus, when a picture signal is recorded on a magnetic disk apparatus, or the like, a message for this picture signal is input by a key entry unit, and the entered message data are recorded during the vertical flyback period of the picture signal. While the picture...http://www.google.com.au/patents/US5097348?utm_source=gb-gplus-sharePatent US5097348 - Image data recording/reproducing apparatus including superimposing function
