Superheterodyne receiver of scanning type with indicator means t

Supervisory device for an optoelectronic switching network

Suppressed-fundamental frequency three-way predistorter

Switchable bandpass filter for a multiband tuner

Switchable signal source module for use with cable television co

Switchable wide band receiver front end for a multiband...

Switched network telephone subscriber distribution system

Switching circuit for a satellite broadcasting converter capable

Switching control apparatus for tuning system

Switching filter module for dynamic multi-channel selection

Symmetrically clamped fiber optic receiver

Synchronization tracking in pulse position modulation receiver

Synthesized selective call receiver having variable characterist

Synthesizer receiver

Synthesizer receiver for automatically tuning master stations an

Synthesizer tuner

System and apparatus for a direct conversion receiver and...

System and method for a mobile computing device to control...

System and method for automatically muting cellular...

System and method for automatically tuning an antenna