Radio receiver with selective plural band reception

Rapid acquisition demodulation system

Rapid acquisition shift keyed signal demodulator

Ratio discriminator

Receiver having a modulation amplifier for enhancing reception o

Receiver having a phase-locked loop

Receiver having a phase-locked loop

Receiver unit having synchronous pull-in circuit

Reception circuit for a wave modulated at one time in frequency

Reduction of noise in signal from charge transfer devices

Register recall in a will system

Ripple free amplitude demodulator

Sample and hold demodulator with feedback for reduced riffle

Sample-and-hold hybrid active RC filter

Sampling modulated waves

Sampling system for decoding biphase-coded data messages

Sampling system for decoding biphase-coded data messages

Saw transition detector for PSK signals

SECAM Chroma demodulator circuit

Self-calibrating threshold detector