Program verification for cable television at a consumer location
Radio frequency proximity detection and identification...
Real time correlation meter
Real-time wireless audience response system
Remote level adjustment system for use in a multi-terminal commu
Satellite communications network
Service channel signal transmission system
Simultaneous transmission of ancillary and audio signals by mean
Statistical communication link
Statistical communication link
Status monitoring apparatus for car radio
Survey of radio audience
System and method for detecting harmonics of RF broadcast...
System and method for estimating characteristics of broadcast ra
System and method for identifying radio stations to which tuners
System and method for obtaining comprehensive vehicle radio...
System and method for scheduling broadcast of and access to vide
System and method for the accurate collection of end-user...
System for determining radio listenership
System method for identifying radio stations to which tuners are