It is an object of the present invention to provide an electronic program guide system and an electronic program guide displaying method that allow a desired program to be selected in a short time and at a high degree of reliability. EPG data of programs received by an IRD 4 through a satellite and EPG...http://www.google.com.hk/patents/US6075570?utm_source=gb-gplus-share專利 US6075570 - Electronic program guide system and electronic guide displaying method