Scanning laser for a scanning laser radar

SECAM Modulator

Self balancing amplitude modulator

Self test circuit for multichannel radio receivers

Self-balancing current sources for a delta modulator

Semiconductor external optical modulator

Semiconductor laser light modulation and demodulation system

Sequential beam switching of acousto-optic modulator

Serial minimum shift keyed modulator including notch and bandpas

Signal coding for telephone communication system

Signal device employing photorefractive area modulation

Signal generator for producing pulse signals for a remote contro

Signal modulation device and signal amplifier cooperative...

Signal modulator apparatus

Signal transmission system

Simplified minimum shift keying modulator

Simultaneous amplitude and angle modulation using detection of c

Single resonant tank modulated oscillator

Single side band radio apparatus

Single side-band modulation system for use in digitally implemen