System for determining whether local stations are transmitting network programs

• US 3,143,705 A
• Filed: 02/19/1962
• Issued: 08/04/1964
• Est. Priority Date: 06/09/1958
• Status: Expired due to Term

• Current Assignee: Charles H. Currey, Darrel W. Holbrook, Gordon K. Truesdale, Lewis Brown Arthur C, Morton Grove, Robert L Freeman
• Original Assignee: Charles H. Currey, Darrel W. Holbrook, Gordon K. Truesdale, Lewis Brown Arthur C, Morton Grove, Robert L Freeman
• Inventors: Currey, Charles H., LEWIS BROWN ARTHUR C, Holbrook, Darrel W., Truesdale, Gordon K., Grove, Morton, Freeman, Robert L.
• Application Number:
  US04/176,851
• Time in Patent Office: 897 Days
• US Class Current: 455/2.01
• CPC Class Codes: H04H 20/103 Transmitter-side switching
• CPC Class Codes: H04H 60/31 Arrangements for monitoring the use made of the broadcast services

Claims

1. IN A SYSTEM FOR DETERMINING THE LISTENING HABITS OF WAVE SIGNAL RECEIVER USERS, FIRST MEANS FOR SUPPLYING A NETWORK SIGNAL REPRESENTING AT LEAST A PORTION OF A NETWORK PROGRAM, SECOND MEANS FOR SUPPLYING A STATION SIGNAL REPRESENTING AT LEAST A PORTION OF A SIGNAL TRANSMITTED BY A TRANSMITTING STATION, COMPARING MEANS FOR COMPARING THE SIGNALS SUPPLIED BY THE FIRST AND SECOND MEANS TO DETERMINE WHETHER THE NETWORK SIGNAL IS THE SAME AS THE STATION SIGNAL, MEANS FOR OPERATING THE COMPARING MEANS A PLURALITY OF TIMES WITHIN A GIVEN TIME INTERVAL, AND INDICATING MEANS CONTROLLED BY THE COMPARING MEANS FOR PROVIDING AN INDICATION ONLY WHEN THE COMPARING MEANS DETERMINES THAT THE NETWORK SIGNAL IS THE SAME AS THE STATION SIGNAL A GIVEN NUMBER OF TIMES GREATER THAN ONE DURING THE GIVEN TIME INTERVAL.