公开(公告)号：US20210334073A1

公开(公告)日：2021-10-28

申请号：US16486241

申请日：2018-11-26

Applicant: Taiyuan University of Technology

Inventor： Yuncai WANG ,  Qiqi ZHANG ,  Jianguo ZHANG ,  Anbang WANG ,  Pu LI

IPC: G06F7/58

Abstract: The present disclosure provides a high-speed random number generation method and device, comprising an entropy source module and an entropy sampling module. The entropy source module is an autonomous Boolean network formed by digital logic gates, the network is formed by an XNOR gate and (N−1) XOR gates, wherein the value of N is equal to 3n (n is a positive integer), and the entropy source can generate chaotic signals having wide and flat frequency spectrum. The entropy sampling module of the present disclosure is formed by D flip flops used for sampling and quantizing the chaotic signals to generate random number sequences. The random number sequences generated by the present disclosure can pass test standards (NIST and Diehard statistic tests) of random number industry and have excellent random statistic characteristics. The random number generation method and device of the present disclosure are completely formed by the digital logic gates, the circuit structure is simple and is easy to be integrated, and without the need of a post processing algorithm or circuit required by a conventional random number generation device, the power consumption can be greatly reduced. The present disclosure can be widely applied to the fields of information security such as secure communications, key distribution, data encryption and the like.

公开(公告)号：US20220171255A1

公开(公告)日：2022-06-02

申请号：US17432425

申请日：2020-04-24

Applicant: TAIYUAN UNIVERSITY OF TECHNOLOGY

Inventor： Pu LI ,  Yuncai WANG ,  Qiang CAI ,  Zhiwei JIA ,  Jianguo ZHANG ,  Anbang WANG ,  Mingjiang ZHANG

IPC: G02F1/35 ,  G02F1/365 ,  H01S3/00

Abstract: Disclosed by the present invention is an ultra-wideband white noise source based on a slicing super-continuum spectrum. The entropy source used is a super-continuum spectrum photon entropy source having a coverage range of several hundreds of nm, white noise can thus be generated in a wide frequency range, thereby effectively avoiding the bandwidth bottleneck of an electronic device. By separately adjusting the filter centers of two optical filters, the center frequency for generating the white noise can be adjusted so as to get adapted to different working situations. High bandwidth white noise can be generated by simply filtering the super-continuum spectrum and performing photoelectric conversion, and in comparison with the previous solutions, the solution of the present invention is simpler and can be easily implemented.

公开(公告)号：US20200374002A1

公开(公告)日：2020-11-26

申请号：US16881170

申请日：2020-05-22

Applicant: Taiyuan University of Technology

Inventor： Yuncai WANG ,  Anbang WANG ,  Tong ZHAO ,  Bingjie WANG ,  Peixin HE

IPC: H04B10/079 ,  H04B10/27 ,  H04J14/02 ,  H04B10/25 ,  H04B10/50 ,  H04B10/071

Abstract: The present invention discloses a high-precision and large-dynamic-range fault monitoring device and method for a WDM-PON. The monitoring device includes a WDM-PON optical network system and an optical network monitoring system. The optical network system includes an OLT I, a feeder fiber II, a 1×n AWG III, a branch fiber IV, and an optical network unit V The optical network monitoring system includes an FP laser, a coupler, an optical coupling device, a photodetector, a signal acquisition and processing device, and an optical feedback device, where the FP laser is connected to the coupler; a large-coupling-ratio output end of the coupler is connected to an input end of the optical coupling device, and a small-coupling-ratio output end of the coupler is connected to an input end of the photodetector; the optical coupling device is installed on the feeder fiber II.