A system and method for modulating a data signal uses a phase shifting transformer function to phase shift the lower and upper sidebands of the data signal so that the sidebands of the data signal have a 180.degree. phase shift with respect to each other (i.e., are complementary). The phase shifted sidebands...http://www.google.de/patents/US5621471?utm_source=gb-gplus-sharePatent US5621471 - System and method for inserting and recovering an add-on data signal for transmission with a video signal
System and method for inserting and recovering an add-on data signal for ...
