Spacecraft telemetry regenerator

Spatial combiner for a digital VLF/LF receiver

Spectral emphasis and de-emphasis

Spectral spreading apparatus for reducing electromagnetic radiat

Spectrally efficient digital FM modulated transmitter

Spectrally efficient digital FM modulation system

Spectrally efficient digital modulation method and apparatus

Spectrally efficient method for communicating an information sig

Spectrum communication method and apparatus for delaying read se

Spectrum converter for analog signals

Spectrum diffusion communication receiving apparatus

Spectrum shaping microwave digital modulators

Spectrum spread communication system

Spectrum spread communication system

Spectrum spread receiver and spectrum spread transmitter-receive

Spectrum spread signal reception with differential demodulation

Spectrum spread transmission method and apparatus

Speech coder and decoder for adaptive delta modulation coding sy

Split band processing for spread spectrum communications

Spread code generation device for spread spectrum communication