N by N type optical diffuser and coupling network
Narrow band laser transmitter
Narrow-linewidth resonant optical device, transmitter, system, a
Navigation morse decode display
Negative feedback control circuit having a common line for input
Network formed as an optical homodyne or heterodyne receiver cir
Neutrino communication arrangement
Noise activated mute for FM reception in an AM/FM radio receiver
Noise blanking circuitry in a radio receiver
Noise cancelling system for FM receiver
Noise control system for FM radio
Noise detector employing plural delay circuits
Noise detector for frequency modulation systems
Noise eliminating circuit
Noise eliminating system
Noise elimination method
Noise eliminator for radio receiver
Noise range indicating system
Non-blocking optical space switch
Non-synchronous object identification system