A system for Identifying the programmes referred to in a television Receiver

摘要

System for Identifying the programmes referred to in a television receiver.It consists of: a domestic Unit System (10) with a television receiver (12); a Cassette Recorder or video (14); a Switching Network (20), a Video Processing Circuit (22), a video switching Circuit (24), an Analog Digital Converter (25), a Circuit extraction On symbol (28), a Data Register (30), (32) and a clockAn office Unit (40) with a Data Communication Circuit (42), a Plurality of Telephone Lines (44), a database (46), a Central Computer (48), a Signal extraction Circuit (48), a Signal extraction Circuit (50) and a reference if Circuit extraction Gnaturas Reference (54).