Phase locking circuit for jitter reduction in a digital...

Phase shift keyed high speed signaling

Phase shift type telegraph system

Phase-controlled multivibrators

Photoconductive multiplexing apparatus

Photoelectric multiplex system

Photoelectric transmitter

Photonic communication system with sub-"line rate" bandwidth...

Photonic integrated circuit for optical cdma

Photonic switch architecture utilizing code and wavelength...

Photonic switching method and photonic switch utilizing same

Pilot arrangement method in mobile radio communication...

Pilot transmission in a wireless communication system

Planar lightwave wavelength blocker

Plural frequency matrix multiplexer

Point-to-multipoint time division multiple access...

Polarization maintaining optical fiber amplifier and optical...

Polarization modulation in wavelength division multiplexed...

Polarization-independent, tunable, acousto-optical waveguide...

Polarization-insensitive optical multiplexing apparatus