公开(公告)号：US20090180778A1

公开(公告)日：2009-07-16

申请号：US12347162

申请日：2008-12-31

Applicant: June Koo Rhee ,  Kyu Sang Lee ,  Chan T.D. Thai

Inventor： June Koo Rhee ,  Kyu Sang Lee ,  Chan T.D. Thai

IPC: H04J14/00 ,  H04J11/00

CPC classification number: H04J14/007 ,  H04B10/548 ,  H04B10/67 ,  H04L5/0007 ,  H04L27/2096 ,  H04L27/2637 ,  H04L27/2653

Abstract: Disclosed are a forward discrete/inverse-discrete Fourier transform device and method for optical orthogonal frequency division multiplexing (OFDM) communication and a transmitting and receiving apparatus.The forward inverse-discrete Fourier transform device includes N 1:N splitters for splitting subcarrier signals received from N inputs corresponding to the number of optical frequencies of subcarriers, a phase shift delay array module for shifting phases of the split signals from the 1:N splitters, N N:1 power couplers for coupling signals output from the phase shift delay array module, a time delay array module for performing time delay on optical OFDM symbols from the N:1 power couplers, and an N:1 power coupler for coupling signals output from the time delay array module.

Abstract translation: 公开了一种用于光学正交频分复用（OFDM）通信和发送和接收设备的前向离散/逆离散傅立叶变换设备和方法。正向离散傅里叶变换设备包括用于分离接收的子载波信号的N 1：N个分离器 来自与子载波的光频数对应的N个输入;相移延迟阵列模块，用于移位来自1：N分路器的分离信号的相位; NN：1个用于从相移延迟阵列模块输出的耦合信号的功率耦合器; 用于对来自N：1个功率耦合器的光学OFDM符号执行时间延迟的时间延迟阵列模块和用于耦合从时间延迟阵列模块输出的信号的N：1功率耦合器。

公开(公告)号：US20120163824A1

公开(公告)日：2012-06-28

申请号：US13413413

申请日：2012-03-06

Applicant: June Koo Rhee ,  Kyu Sang Lee ,  Chan T.D. Thai

Inventor： June Koo Rhee ,  Kyu Sang Lee ,  Chan T.D. Thai

IPC: H04J14/02 ,  H04J11/00

CPC classification number: H04J14/007 ,  H04B10/548 ,  H04B10/67 ,  H04L5/0007 ,  H04L27/2096 ,  H04L27/2637 ,  H04L27/2653

Abstract: Disclosed are a forward discrete/inverse-discrete Fourier transform device and method for optical orthogonal frequency division multiplexing (OFDM) communication and a transmitting and receiving apparatus. The forward inverse-discrete Fourier transform device includes N 1:N splitters for splitting subcarrier signals received from N inputs corresponding to the number of optical frequencies of subcarriers, a phase shift delay array module for shifting phases of the split signals from the 1:N splitters, N N:1 power couplers for coupling signals output from the phase shift delay array module, a time delay array module for performing time delay on optical OFDM symbols from the N:1 power couplers, and an N:1 power coupler for coupling signals output from the time delay array module.

Abstract translation: 公开了一种用于光学正交频分复用（OFDM）通信和发送和接收设备的前向离散/逆离散傅里叶变换设备和方法。 前向逆离散付里叶变换装置包括N 1：N个分离器，用于分割从N个输入接收到的与副载波的光频数相对应的子载波信号;相移延迟阵列模块，用于从1：N移位分离信号的相位 分流器，NN：1个用于耦合从相移延迟阵列模块输出的信号的功率耦合器，用于对来自N：1个功率耦合器的光OFDM符号执行时间延迟的延时阵列模块，以及用于耦合信号的N：1功率耦合器 从时间延迟阵列模块输出。