Signal transmission method and apparatus

Air conditioner

Methods and apparatus for controllable coupling of an electromagnetic wave

Systems and methods for multiplexing and demodulation at high frequencies and increased communication bandwidth

Apparatus and method for increased data rates in underwater communications using orbital angular momentum

Forward discrete/inverse-discrete Fourier transform device and method for optical OFDM communication and transmitting and receiving apparatus comprising the device

Secure key distribution for optical code division multiplexed based optical encryption

Optical communication system, optical transmitter, optical receiver and methods, and correlators used therefor

Code grouping for optical networks

OFDM transponder interface with variable bit transfer rate in optical communications systems

Phase Chip Frequency-Bins Optical Code Division Multiple Access

System and method for OCDMA-based photonic layer security robustness to archival attack

Variable spectral phase encoder/decoder based on decomposition of hadamard codes

Variable spectral phase encoder/decoder based on decomposition of Hadamard codes

Forward discrete/inverse-discrete Fourier transform device and method for optical OFDM communication and transmitting and receiving apparatus comprising the device

High resolution digital optical encoder/decoder

Code grouping for optical networks

INTERCHANNEL-TIME CODING METHOD FOR MULTICHANNEL TRANSMISSION SYSTEMS

Optical device for simultaneously generating and processing optical codes

Encoder/decoder for OCDMA and method thereof

Phase chip frequency-bins optical code division multiple access

Code cycle modulation in optical code division multiple access systems

Multi-wavelength optical CDMA with differential encoding and bipolar differential detection

Optical communication system using optical frequency code, optical transmission device and optical reception device thereof, and reflection type optical communication device

Optical connection device and optoelectronic hybrid apparatus including the same

Phase-encoded optical code division multiple access

Communication system using wavelength spread-spectrum coding

System and apparatus for multi user communication over a single fiber