It is possible for the content distribution side to control the conditions of target viewers for distributions without depending on the functions specific to a receiver. Content which is broadcast, a content profile, and a program are received. In an initial step of the program, prestored viewer profile...http://www.google.com.tw/patents/US7657267?utm_source=gb-gplus-share專利 US7657267 - Receiving apparatus and method, information distribution method, filtering and storing program, and recording medium