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1. 发明申请

US20180331765A1 METHOD AND SYSTEM FOR THE MONOLITHIC INTEGRATION OF CIRCUITS FOR MONITORING AND CONTROL OF RF SIGNALS 审中-公开
公开(公告)号：US20180331765A1
公开(公告)日：2018-11-15
申请号：US15947555
申请日：2018-04-06
申请人： Skorpios Technologies, Inc.
发明人： Stephen B. Krasulick , Timothy Creazzo , Kalpit Jha , Elton Marchena , Amit Mizrahi
IPC分类号： H04B10/556 , H04B10/50 , H04L27/20 , H04B10/564 , H04B10/079 , H04J14/02
CPC分类号： H04B10/5561 , H04B10/07955 , H04B10/5053 , H04B10/564 , H04J14/0227 , H04L27/2096
摘要： A method of operating a BPSK modulator includes receiving an RF signal at the BPSK modulator and splitting the RF signal into a first portion and a second portion that is inverted with respect to the first portion. The method also includes receiving the first portion at a first arm of the BPSK modulator, receiving the second portion at a second arm of the BPSK modulator, applying a first tone to the first arm of the BPSK modulator, and applying a second tone to the second arm of the BPSK modulator. The method further includes measuring a power associated with an output of the BPSK modulator and adjusting a phase applied to at least one of the first arm of the BPSK modulator or the second arm of the BPSK modulator in response to the measured power.

2. 发明授权

US10009102B2 Optical communication system, optical receiver, optical receiver control method, and non-transitory computer readable medium 有权
公开(公告)号：US10009102B2
公开(公告)日：2018-06-26
申请号：US14904023
申请日：2014-05-26
申请人： NEC Corporation
发明人： Yasushi Hara
IPC分类号： H04B10/06 , H04B10/2507 , H04B10/556 , H04B10/61 , H04L27/20 , H04L27/38
CPC分类号： H04B10/2507 , H04B10/5561 , H04B10/612 , H04B10/614 , H04B10/616 , H04B10/6161 , H04L27/2096 , H04L27/3809
摘要： Present invention provides an optical communication system that controls reception sensitivity of an optical receiver. The communication system (100) according to the present invention comprising: an optical transmitter (1) to which an transmission signal is input, and which modulates the transmission signal to an optical signal and transmits the optical signal; and an optical receiver (2) that receives the optical signal and demodulates the optical signal to an transmission signal. And the optical receiver (2) includes a photoelectric conversion means (10) for converting the optical signal into an analog electric signal, a conversion and demodulation means (25) for converting the analog electric signal into a digital signal and demodulating the signal to the transmission signal, and an amplitude control means (102) for controlling amplitude of the analog electric signal, and the amplitude control means (102) controls the amplitude of the analog electric signal in accordance with wavelength dispersion of the optical signal.

3. 发明申请

US20170317760A1 OPTICAL MM-WAVE SIGNAL GENERATION USING A SINGLE IQ MODULATOR 审中-公开
公开(公告)号：US20170317760A1
公开(公告)日：2017-11-02
申请号：US15499799
申请日：2017-04-27
申请人： ZTE Corporation
发明人： Jianjun Yu , Xinying Li , Hung-Chang Chien
IPC分类号： H04B10/516 , H04L27/36
CPC分类号： H04B10/5161 , H04B10/5165 , H04L27/206 , H04L27/2096 , H04L27/364
摘要： A scheme for generating asymmetric single sideband photonic vector signal at millimeter wave spectral region is described. At a transmitter, information bits to be transmitted are modulated using a vector modulation technique to generate a baseband signal. The baseband signal is converted into its single sideband (SSB) version using a complex frequency source having a first frequency. The real part of the upconverted signal is added to the real part of a second frequency source and is input as I component to an I/Q modulator. The imaginary part of the upconverted signal is added to the imaginary part of the second frequency source and is used as the Q component. The I/Q modulator is driven by a laser source at frequency fc. The resulting signal is transmitter over an optical transmission medium and upconverted by a single-ended photodiode to a desired radio-frequency (RF) carrier frequency.

4. 发明申请

US20170201325A1 METHOD AND SYSTEM FOR THE MONOLITHIC INTEGRATION OF CIRCUITS FOR MONITORING AND CONTROL OF RF SIGNALS 有权
公开(公告)号：US20170201325A1
公开(公告)日：2017-07-13
申请号：US15274714
申请日：2016-09-23
申请人： Skorpios Technologies, Inc.
发明人： Stephen B. Krasulick , Timothy Creazzo , Kalpit Jha , Elton Marchena , Amit Mizrahi , Robert J. Stone
IPC分类号： H04B10/556 , H04B10/50 , H04B10/564 , H04J14/02 , H04L27/20 , H04B10/079
CPC分类号： H04B10/5561 , H04B10/07955 , H04B10/5053 , H04B10/564 , H04J14/0227 , H04L27/2096
摘要： A method of operating a BPSK modulator includes receiving an RF signal at the BPSK modulator and splitting the RF signal into a first portion and a second portion that is inverted with respect to the first portion. The method also includes receiving the first portion at a first arm of the BPSK modulator, receiving the second portion at a second arm of the BPSK modulator, applying a first tone to the first arm of the BPSK modulator, and applying a second tone to the second arm of the BPSK modulator. The method further includes measuring a power associated with an output of the BPSK modulator and adjusting a phase applied to at least one of the first arm of the BPSK modulator or the second arm of the BPSK modulator in response to the measured power.

5. 发明授权

US09621298B2 Method of optical data transmission using polarization division multiplexing and QPSK 有权
公开(公告)号：US09621298B2
公开(公告)日：2017-04-11
申请号：US14896732
申请日：2014-06-06
申请人： Alcatel Lucent
发明人： Jeremie Renaudier , Oriol Bertran-Pardo
IPC分类号： H04B10/00 , H04J14/06 , H04B10/50 , H04B10/556 , H04L7/00
CPC分类号： H04J14/06 , H04B10/5053 , H04B10/5561 , H04L5/04 , H04L7/0075 , H04L27/2071 , H04L27/2096
摘要： Proposed is a method of optical data transmission. The method comprises different steps. At least one stream of data bits is received. Sets of data bits are mapped onto successive logical states. The logical states correspond to respective sets of two initial QPSK symbols chosen according to a QPSK mapping and according to a set partitioning rule. The logical states are differentially encoded according to a differential encoding rule. For the differentially encoded logical states respective sets of two resulting QPSK symbols are derived according to the QPSK mapping and according to the set partitioning rule. The encoded sets of two QPSK symbols are transmitted using polarization division multiplexing. The differential encoding rule results in a differential encoding of one of the initial QPSK symbols but not the other of the initial QPSK symbols.

6. 发明授权

US09548878B2 Digital radio frequency transceiver system and method 有权
标题翻译：数字射频收发系统及方法
公开(公告)号：US09548878B2
公开(公告)日：2017-01-17
申请号：US14519197
申请日：2014-10-21
申请人： Hypres Inc.
发明人： Deepnarayan Gupta , Oleg Mukhanov
IPC分类号： H04B10/00 , H04L27/20 , H04B10/2575 , H04B10/69
CPC分类号： H04B10/25752 , H04B10/2575 , H04B10/40 , H04B10/5561 , H04B10/697 , H04L27/2096
摘要： A transceiver architecture for wireless base stations wherein a broadband radio frequency signal is carried between at least one tower-mounted unit and a ground-based unit via optical fibers, or other non-distortive media, in either digital or analog format. Each tower-mounted unit (for both reception and transmission) has an antenna, analog amplifier and an electro-optical converter. The ground unit has ultrafast data converters and digital frequency translators, as well as signal linearizers, to compensate for nonlinear distortion in the amplifiers and optical links in both directions. In one embodiment of the invention, at least one of the digital data converters, frequency translators, and linearizers includes superconducting elements mounted on a cryocooler.
摘要翻译：一种用于无线基站的收发机架构，其中宽带射频信号通过光纤或数字或模拟格式的光纤或其他非失真媒介在至少一个塔式安装单元和基于地面的单元之间承载。每个塔式装置（用于接收和传输）都具有天线，模拟放大器和电光转换器。地面单元具有超快数据转换器和数字频率转换器以及信号线性化器，以补偿放大器和光学链路在两个方向上的非线性失真。在本发明的一个实施例中，至少一个数字数据转换器，频率转换器和线性化器包括安装在低温冷却器上的超导元件。

7. 发明申请

US20160099823A1 REAL TIME OFDM TRANSMISSION SYSTEM 审中-公开
标题翻译：实时OFDM传输系统
公开(公告)号：US20160099823A1
公开(公告)日：2016-04-07
申请号：US14505052
申请日：2014-10-02
申请人： STMicroelectronics SA
发明人： Fatima Barrami
IPC分类号： H04L27/26
CPC分类号： H04L27/2628 , H04B10/548 , H04B10/69 , H04L27/2096 , H04L27/2697
摘要： An OFDM (orthogonal frequency division multiplexing) transmitter includes an inverse fast Fourier transform circuit, which, in operation, generates, based on digital input data, a complex time-varying digital signal having real and imaginary components; and a multiplexer adapted to generate a time-multiplexed digital signal by time-multiplexing one or more of the real components with one or more of the imaginary components.
摘要翻译： OFDM（正交频分复用）发射机包括逆快速傅里叶变换电路，其在操作中基于数字输入数据产生具有实部和虚部分的复数时变数字信号; 以及多路复用器，其适于通过用一个或多个虚构分量对一个或多个实部进行时分多路复用的数字信号。

8. 发明授权

US09294196B2 Method for processing data in an optical network element and optical network element 有权
标题翻译：用于处理光网络元件和光网络元件中的数据的方法
公开(公告)号：US09294196B2
公开(公告)日：2016-03-22
申请号：US14452073
申请日：2014-08-05
申请人： Xieon Networks S.a.r.l.
发明人： Oscar Gaete , Leonardo Coelho , Bernhard Spinnler , Norbert Hanik , Ernst-Dieter Schmidt
IPC分类号： H04B10/00 , H04B10/27 , H04L27/20 , H04L27/26
CPC分类号： H04B10/27 , H04L27/2096 , H04L27/2628 , H04L27/2697
摘要： A method for processing data in an optical network element is provided, wherein a multicarrier signal is linear pre-coded, and wherein the linear pre-coded signal is modulated. An according optical network element is also suggested.
摘要翻译：提供了一种用于处理光网络元件中的数据的方法，其中多载波信号是线性预编码的，并且其中线性预编码信号被调制。还提出了一种光网络元件。

9. 发明申请

US20160065326A1 OPTICAL TRANSMISSION/RECEPTION SYSTEM, TRANSMITTER, RECEIVER, AND OPTICAL TRANSMISSION/RECEPTION METHOD 有权
标题翻译：光传输/接收系统，发射机，接收机和光传输/接收方法
公开(公告)号：US20160065326A1
公开(公告)日：2016-03-03
申请号：US14778824
申请日：2014-03-14
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Yoshiaki KISAKA , Koichi ISHIHARA , Masahito TOMIZAWA , Etsushi YAMAZAKI
IPC分类号： H04J14/06 , H04B10/532 , H04B10/61
CPC分类号： H04J14/06 , H04B10/077 , H04B10/50 , H04B10/516 , H04B10/532 , H04B10/614 , H04B10/6162 , H04L27/2096
摘要： An optical transmission and reception system includes a transmitter and receiver. The transmitter differentially encodes control information to generate a differentially coded signal; uses the differentially coded signal to modulate a signal sequence in which electricity concentrates at a particular frequency; applies time-division multiplexing on the modulated signal sequence and a primary signal in one of two polarized wave components, and applies time-division multiplexing on the other polarized wave components and the signal sequence itself; and polarization-multiplexes the both of the time-division multiplexed polarized waves into an optical signal; and transmits the optical signal to the receiver. The receiver polarization-demultiplexes the received optical signal to generate two polarized wave signals; extracts the signal sequence in which electricity concentrates at the particular frequency from the two polarized wave signals; and applies differential detection on the extracted signal sequence to demodulate the control information.
摘要翻译：光传输和接收系统包括发射机和接收机。发射机差分编码控制信息以产生差分编码的信号; 使用差分编码的信号来调制在特定频率集中电力的信号序列; 对调制信号序列和两个极化波分量之一的主信号进行时分复用，对其他极化波分量和信号序列本身进行时分复用; 并且将所述时分复用偏振波的两个偏振复用为光信号; 并将光信号发送到接收机。接收机对所接收的光信号进行偏振解复用以产生两个偏振波信号; 从两个极化波信号中提取特定频率集中的信号序列; 对所提取的信号序列应用差分检测来解调控制信息。

10. 发明授权

US09270381B2 Method and apparatus for transmitting and receiving coherent optical OFDM 有权
标题翻译：用于发送和接收相干光OFDM的方法和装置
公开(公告)号：US09270381B2
公开(公告)日：2016-02-23
申请号：US13301814
申请日：2011-11-22
申请人： Chun Ju Youn , Yong-Hwan Kwon , Duk Jun Kim , Jong-Hoi Kim , Joong-Seon Choe , Kwang-Seong Choi , Eun Soo Nam
发明人： Chun Ju Youn , Yong-Hwan Kwon , Duk Jun Kim , Jong-Hoi Kim , Joong-Seon Choe , Kwang-Seong Choi , Eun Soo Nam
IPC分类号： H04B10/06 , H04B10/04 , H04B10/548 , H04B10/077 , H04B10/588 , H04B10/61 , H04L27/20 , H04L27/26
CPC分类号： H04B10/548 , H04B10/0775 , H04B10/588 , H04B10/613 , H04B10/6165 , H04L27/2096 , H04L27/2613 , H04L27/2657 , H04L27/2675 , H04L27/2692 , H04L27/2697
摘要： Disclosed are a method and an apparatus for transmitting and receiving coherent optical OFDM. The apparatus includes: a transmitted OFDM digital signal processing unit outputting an in-phase (I) component digital signal and a quadrature phase (Q) component digital signal; a digital-analog converter converting the in-phase (I)-component digital signal and the quadrature-phase (Q)-component digital signal into an in-phase (I)-component analog signal and a quadrature-phase (Q)-component analog signal, respectively; an adder adding an additional pilot tone signal to each of the in-phase (I)-component analog signal and the quadrature-phase (Q)-component analog signal outputted from the digital-analog converter; and an optical I/Q modulator up-converting the in-phase (I)-component analog signal added with the additional pilot tone signal and the quadrature-phase (Q)-component analog signal added with the additional pilot tone signal to an optical domain to output a coherent optical OFDM signal including the additional pilot tone signal.
摘要翻译：公开了用于发送和接收相干光OFDM的方法和装置。该装置包括：发送的OFDM数字信号处理单元，输出同相（I）分量数字信号和正交相位（Q）分量数字信号; 将同相（I）分量数字信号和正交相位（Q））数字信号转换为同相（I）分量模拟信号和正交相位（Q）分量数字信号的数模转换器，分量模拟信号; 对从数模转换器输出的同相（I）分量模拟信号和正交相（Q））模拟信号中的每一个加上附加导频音信号的加法器; 以及光学I / Q调制器，将添加有附加导频音信号的同相（I）分量模拟信号和加上附加导频音信号的正交相位（Q））模拟信号上变频到光域以输出包括附加导频音信号的相干光OFDM信号。

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