Systems and methods for monitoring visual displays in a picture-in-picture, or other multi-picture format. Some of the systems include two video inputs, with one being generated remote from a display, while the other is being generated local to the display. The systems include a selecting device that...http://www.google.es/patents/US20040150750?utm_source=gb-gplus-sharePatente US20040150750 - Systems and methods for monitoring visual information
Systems and methods for monitoring visual information
