Peak reduction for simulcast broadcast signals

Phase lock loop circuit

Point-based system and method for interacting with...

Polarity reversing dc power supply for remotely located...

Portable electronic communications apparatus, communications...

Portable music player and transmitter

Predictive distortion reduction in am stereo transmitters

Presenting programs

Private broadcast communications

Process for inserting audio messages in a locally broadcast...

Process for transmitting additional information with an a.m....

Process, sender and receiver for transmitting and selecting...

Program guide system with browsing display

Program guide system with monitoring of advertisement usage...

Program identification method and apparatus

Program storage, retrieval and management based on...

Programmable radio subscription system for receiving...

Programme selection means in a programme transmission and...

Providing content interruptions

Purchase of a piece of music being played on a radio in a...