A unified system of programming communication. The system encompasses the prior art (television, radio, broadcast hardcopy, computer communications, etc.) and new user specific mass media. Within the unified system, parallel processing computer systems, each having an input (e.g., 77) controlling a plurality...http://www.google.fr/patents/US7761890?utm_source=gb-gplus-shareBrevet US7761890 - Signal processing apparatus and methods