Apparatus and method for frequency translation in a...

Apparatus and method for phase noise and post tuning drift...

Apparatus for and method of controlling a sampling frequency...

Apparatus for and method of discriminating signals

Apparatus for demodulating an am stereophonic signal

Apparatus for indicating stereophonic broadcasting...

Arrangement for compensating carrier phase errors in a...

Arrangement for the stereophonic reproduction of signals

Automatic frequency control system for single sideband...

Automatic frequency corrector for adifferential phase...

Automatic frequency corrector in differential phase...

Automatic stereophonic radio receiver

Avalanche diode amplifier/up converter