专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US10651867B2 High-speed and high-precision photonic analog-to-digital conversion device and method for realizing intelligent signal processing using the same 有权
公开(公告)号：US10651867B2
公开(公告)日：2020-05-12
申请号：US16132103
申请日：2018-09-14
申请人： Shanghai Jiao Tong University
发明人： Weiwen Zou , Shaofu Xu , Jianping Chen
IPC分类号： G02F7/00 , H03M1/14 , H03M1/16 , H03M1/36 , H03M1/46
摘要： A high-speed and high-precision photonic analog-to-digital conversion device capable of realizing intelligent signal processing. Learning ability of deep learning technology is utilized to learn the nonlinear response and channel mismatch effect of the system and configure optimal parameters of the deep network. Deterioration of photonic analog-to-digital conversion system performance caused by nonlinear distortion and channel mismatch distortion is eliminated in real time, and performance indicators thereof are improved. By using the induction and deduction ability of deep learning technology, intelligent signal processing of the input signal is realized, and users are provided with digital signals that meet the requirements. It's important for improving the performance of microwave photonic systems that require high sampling rate, high time precision, and high sampling accuracy, such as microwave photonic radar and optical communication systems, and also critical to improve the signal processing ability of such systems under complex conditions.

2. 发明申请

US20190319634A1 HIGH-SPEED AND HIGH-PRECISION PHOTONIC ANALOG-TO-DIGITAL CONVERSION DEVICE AND METHOD FOR REALIZING INTELLIGENT SIGNAL PROCESSING USING THE SAME 审中-公开
公开(公告)号：US20190319634A1
公开(公告)日：2019-10-17
申请号：US16132103
申请日：2018-09-14
申请人： Shanghai Jiao Tong University
发明人： Weiwen Zou , Shaofu Xu , Jianping Chen
IPC分类号： H03M1/14 , H03M1/16 , H03M1/36 , H03M1/46 , G02F7/00
摘要： A high-speed and high-precision photonic analog-to-digital conversion device capable of realizing intelligent signal processing. Learning ability of deep learning technology is utilized to learn the nonlinear response and channel mismatch effect of the system and configure optimal parameters of the deep network. Deterioration of photonic analog-to-digital conversion system performance caused by nonlinear distortion and channel mismatch distortion is eliminated in real time, and performance indicators thereof are improved. By using the induction and deduction ability of deep learning technology, intelligent signal processing of the input signal is realized, and users are provided with digital signals that meet the requirements. It's important for improving the performance of microwave photonic systems that require high sampling rate, high time precision, and high sampling accuracy, such as microwave photonic radar and optical communication systems, and also critical to improve the signal processing ability of such systems under complex conditions.

3. 发明授权

US11526742B2 Method and system for intelligent decision-making photonic signal processing 有权
公开(公告)号：US11526742B2
公开(公告)日：2022-12-13
申请号：US16132259
申请日：2018-09-14
申请人： Shanghai Jiao Tong University
发明人： Weiwen Zou , Lei Yu , Shaofu Xu , Bowen Ma , Jianping Chen
IPC分类号： G06N3/067 , G06E3/00 , G06N3/04 , G06N3/08 , H04B10/70
摘要： Method and system for intelligent decision-making photonic signal processing, where the system comprises a multi-functional input unit, an electro-optical conversion module, a signal processing module, a photoelectric conversion module, a multi-functional output unit, and an artificial intelligence chip. The invention combines the advantages of photonic high-speed, wide-band, and electronic flexibility, combined with heterogeneous photoelectron hybrid integration, packaging and other processes, along with deep learning algorithm, is an intelligent electronic information system that may simultaneously realize digital and analog signal processing.

4. 发明申请

US20220100048A1 HIGH-SPEED AND LOW-VOLTAGE ELECTRO-OPTICAL MODULATOR BASED ON LITHIUM NIOBATE-SILICON WAFER 有权
公开(公告)号：US20220100048A1
公开(公告)日：2022-03-31
申请号：US17547124
申请日：2021-12-09
申请人： Shanghai Jiao Tong University
发明人： Weiwen Zou , Jing Wang , Shaofu Xu
IPC分类号： G02F1/21 , G02F1/225
摘要： A high-speed and low-voltage electro-optical modulator based on a lithium niobate-silicon wafer. A silicon wafer is located above a lithium niobate wafer; a lithium niobate-silicon hybrid waveguide is formed by etching a silicon waveguide; and the power of light waves is differently distributed in the lithium niobate-silicon hybrid waveguide by changing the structure of the silicon waveguide. When higher power is distributed in the silicon waveguide, the high-speed and low-voltage electro-optical modulator is suitable for realizing a compact wave splitting function, a wave combining function and a thermo-optical modulation function; and when higher power is distributed in the lithium niobate waveguide, the high-speed and low-voltage electro-optical modulator is suitable for realizing a high-speed and low-voltage electro-optical modulation function. The present invention takes advantage of the lithium niobate and silicon material platforms respectively, and is suitable for high-speed and low-voltage electro-optical modulation.

5. 发明申请

US20180106904A1 FULL-SPECTRUM COVERING ULTRA WIDEBAND ALL PHOTONICS-BASED RADAR SYSTEM 审中-公开
公开(公告)号：US20180106904A1
公开(公告)日：2018-04-19
申请号：US15833992
申请日：2017-12-06
申请人： Shanghai Jiao Tong University
发明人： Weiwen Zou , Hao Zhang , Siteng Zhang , Jianping Chen
IPC分类号： G01S17/88
摘要： A full-spectrum covering ultra wideband full-photonics based radar system comprising a signal transmitter, a transceiver module, and a signal receiver. The signal transmitter comprises a mode-locked laser, a first dispersion module, a first optical coupler, a second optical coupler, a first optical filter, a second dispersion module, a second optical filter, a first adjustable time delay module, a third optical coupler, an optical amplifier, and a first photodetector; the transceiver module comprises a band selector, a first electrical amplifier array, a T/R component array, an antenna array, and a second electrical amplifier array; the signal receiver comprises a third optical filter, a second adjustable time delay module, an electro-optical modulator, a third dispersion module, a second photodetector, an analog-digital conversion module, and a signal processing module. The system has continuous tunability for center frequency, bandwidth, and time width of the wideband signal with high coherence and ranging accuracy.

6. 发明授权

US10812095B2 Deep learning based method and device for noise suppression and distortion correction of analog-to-digital converters 有权
公开(公告)号：US10812095B2
公开(公告)日：2020-10-20
申请号：US16132202
申请日：2018-09-14
申请人： Shanghai Jiao Tong University
发明人： Weiwen Zou , Shaofu Xu , Jianping Chen
IPC分类号： H03M1/06 , H03M1/10 , G06K9/62 , G06N3/08 , H03M1/08 , H03M1/12
摘要： A device for noise suppression and distortion correction of analog-to-digital converters based on deep learning that realizes effect of correcting noise and distortion of analog to digital converters. The method is applied to electronic ADCs or photonic ADCs. It utilizes the learning ability of the deep network to perform system response learning on ADCs which need noise suppression and distortion correction, establishes a computational model in the deep network that can suppress the reconstruction of noises and distorted signals, performs noise suppression and distortion correction on the signals obtained by ADCs, and thereby improves performance of the learned ADCs. The device improves the performance of the microwave photon system with high sampling precision of microwave photon radar and optical communication system.

7. 发明授权

US10605921B2 Full-spectrum covering ultra wideband all photonics-based radar system 有权
公开(公告)号：US10605921B2
公开(公告)日：2020-03-31
申请号：US15833992
申请日：2017-12-06
申请人： Shanghai Jiao Tong University
发明人： Weiwen Zou , Hao Zhang , Siteng Zhang , Jianping Chen
IPC分类号： G01C3/08 , G01S17/88 , G01S13/02 , G01S7/03 , G01S13/26 , G01S7/28
摘要： A full-spectrum covering ultra wideband full-photonics based radar system comprising a signal transmitter, a transceiver module, and a signal receiver. The signal transmitter comprises a mode-locked laser, a first dispersion module, a first optical coupler, a second optical coupler, a first optical filter, a second dispersion module, a second optical filter, a first adjustable time delay module, a third optical coupler, an optical amplifier, and a first photodetector; the transceiver module comprises a band selector, a first electrical amplifier array, a T/R component array, an antenna array, and a second electrical amplifier array; the signal receiver comprises a third optical filter, a second adjustable time delay module, an electro-optical modulator, a third dispersion module, a second photodetector, an analog-digital conversion module, and a signal processing module. The system has continuous tunability for center frequency, bandwidth, and time width of the wideband signal with high coherence and ranging accuracy.

8. 发明申请

US20150093122A1 ENCODING AND DECODING METHODS FOR HIGH-PRECISION TIME TRANSFER AND ENCODING AND DECODING DEVICES THEREFOR 有权
标题翻译：用于高精度时间传输和编码和解码器件的编码和解码方法
公开(公告)号：US20150093122A1
公开(公告)日：2015-04-02
申请号：US14562000
申请日：2014-12-05
申请人： Shanghai Jiao Tong University
发明人： Guiling WU , Liang Hu , Jianguo Shen , Weiwen Zou , Jianping Chen
IPC分类号： H04B10/524 , H04L25/49
CPC分类号： H04B10/524 , G01S19/00 , H03M5/14 , H04L1/00 , H04L25/00 , H04L25/4902
摘要： A format for modified IRIB-G time code, with added message fields while preserving pulse width coding rule of the standard IRIG-B time code, having a time interval field for carrying time interval between the local time signal and a received time signal, and a user-defined or padded field for carrying user-defined time and/or control messages. An encoding and a decoding methods and devices for high-precision time transfer, where the modified IRIG-B time code carries more messages, and enabling transmission of timing messages and testing messages of two-way time comparison via a single message channel at the same time, which reduces fluctuation due to encoding and decoding manipulation and correlation with working frequencies via exact synchronization between the on-times of the output encoded time code and the transmitted time signal, and between the on-times of the output decoded time signal and the input time code, and improves precision of time transfer.
摘要翻译：用于修改的IRIB-G时间码的格式，具有添加的消息字段，同时保留标准IRIG-B时间码的脉冲宽度编码规则，具有用于承载本地时间信号和接收到的时间信号之间的时间间隔的时间间隔字段，以及用于承载用户定义的时间和/或控制消息的用户定义或填充字段。用于高精度时间传输的编码和解码方法和装置，其中修改的IRIG-B时间码携带更多消息，并且通过相同的单个消息信道实现定时消息的传输和双向时间比较的测试消息时间，其通过编码和解码操作的波动以及通过输出编码时间码的接通时间与发送的时间信号之间的精确同步以及在输出解码时间信号的导通时间与输入时间码，提高时间传输的精度。

9. 发明授权

US10209135B2 Method for measuring multi-channel mismatch of ultra-high speed photonic sampler and measurement compensation device thereof 有权
公开(公告)号：US10209135B2
公开(公告)日：2019-02-19
申请号：US15544188
申请日：2014-10-30
申请人： Shanghai Jiao Tong University
发明人： Weiwen Zou , Guang Yang , Huajie Zhang , Jianping Chen
IPC分类号： G01J11/00 , G01J3/28 , G01R27/28 , G01J1/58
摘要： The present invention relates to a measuring and compensating method for channel mismatch of an ultra-high speed time-wavelength interleaved optical pulse sequence, by employing a generating module of the to-be tested ultra-high speed time-wavelength interleaved optical pulse sequence, an optical spectrum measuring module, an electrical frequency measuring module, and a data analyzing and processing module. The present invention obtains mismatch information of the pulse sequence for each channel by means of measurement and analysis of the ultra-high speed time-wavelength interleaved optical pulse sequence, thus overcoming the bottleneck of inadequate sampling of time-domain observation via an oscilloscope. The channel mismatch information obtained by the present invention may act as a basis for channel mismatch compensation and correction for the ultra-high speed time-wavelength interleaved optical pulse sequence.

10. 发明授权

US09991662B2 Generator for wholly optical tunable broadband linearly chirped signal 有权
公开(公告)号：US09991662B2
公开(公告)日：2018-06-05
申请号：US15653089
申请日：2017-07-18
申请人： Shanghai Jiao Tong University
发明人： Weiwen Zou , Hao Zhang , Jianping Chen
IPC分类号： G02B6/28 , G02B6/00 , H01S3/00 , H01S3/13 , H01S3/11
CPC分类号： H01S3/0057 , G02F2/02 , H01S3/1106 , H01S3/1305
摘要： Generator for wholly optical tunable broadband linearly chirped signal comprising a mode-locked laser, a first optical coupler, a first optical filter, a first dispersion module, a second optical filter, a second dispersion module, a tunable time delay module, a second optical coupler, an optical amplifier, and a photodetector. The generator of the present invention employs just one mode-locked laser as a light source, thus preventing instability of the generated signal resulting from independent unrelated lasers. By making use of the principle of wavelength-time mapping and by means of adjusting the center wavelength and the filter bandwidth of the first optical filter and the second optical filter, easy and flexible tuning of the center frequency and sweep bandwidth of the generated linearly chirped signal is realized. The present invention possesses a big advantage on the aspect of generating a broadband linearly chirped signal over other solutions.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式