Electronic pattern generation and mixing method and device - superimposes several pattern signals or pictured into one video signal

摘要

The form and position on the screen of the cross generated is variable as it is generated from the vertical and horizontal sync. pulses by means of monostables. Several different patterns or pictures may be mixed with a main video signal via pulse mixers. A mixing signal is compared with a reference potential to change its polarity and contrast. Sub-titles may be added in black or white depending on the background. Positional measurements and control for applications in the supervisory and process control fields are possible. Traffic counting and directing via monitoring TV cameras, pan and tilt object following, and military uses like rocket control for ground-to-air or air-to-air missiles are further uses.