1
Robert C Copriviza, Arnold M Dubin, Edward B Ackerman, Jackson B Wood, Jeffrey S Eakins, David D Harmon: Method and apparatus for video signal encoding, decoding and monitoring. Airtrax, Poms Smith Lande & Rose, June 7, 1994: US05319453 (311 worldwide citation)

Unique digital codes are encoded on a video signal, the codes are retrieved at receivers and precise information concerning the time of occurrence, length, nature and quality of a monitored broadcast at a frame by frame level, is generated. The codes are inserted on scan lines of the video, and vary ...


2
Robert C Copriviza, Arnold M Dubin, Edward B Ackerman, Jackson B Wood, Jeffrey S Eakins, David D Harmon: System and method for monitoring video program material. Airtrax, Poms Smith Lande & Rose P C, July 8, 1997: US05646675 (121 worldwide citation)

Unique digital codes are encoded on a video signal, the codes are retrieved at receivers and precise information concerning the time of occurrence, length, nature and quality of a monitored broadcast at a frame by frame level, is generated. The codes are inserted on scan lines of the video, and vary ...