Station selection indicating device

Station-signal frequency indication system for radio receiver

Statistical contention control for star configured communication

Steady state channel select

Step counter usable as pocket paging receiver and method for con

Stereo headphone remote control circuit

Stop on station circuit including center channel detector

Stop-on-station method and apparatus

Stripline microwave balanced mixer circuit

Strong and weak signal preamplification system

Structure for wireless communication in an electromagnetically s

Structure generated composite reference signal for interference

Structures and methods for direct conversion from radio...

Sub-harmonic mixer

Sub-harmonic mixer and down converter with the same

Sub-harmonically pumped mixer

Sub-miniature radio telephone decoder

Sub-miniature tone decoder

Sub-miniature tone encoder with automatic number identification

Subharmonic frequency converter for applications to...