Active system and method for detecting harmonics of RF...
Active system and method for remotely identifying RF broadcast s
Addressable PCM music broadcast receiver
Advertisement reconciliation system
Apparatus and method for automatically monitoring broadcast band
Audience detection
Audience measurement during a mute mode
Audience rating system for digital television and radio
Audio frequency based market survey method
Automated receiver monitoring method and apparatus
Automatic polling and display interactive entertainment system
Automatic system and method for monitoring and storing radio use
Bias compensating remote audience survey system and method
Broadcast audience surveillance using intercepted audio
Cable sensor for sensing a DC signal from a cable headend
Cable services security system
Data communication system
Data transmission process in a CATV system
Detecting and measuring exposure to media content items
Dual in-band/out-of-band CATV system