公开(公告)号：US20210364620A1

公开(公告)日：2021-11-25

申请号：US17256851

申请日：2019-06-06

Applicant: NUCTECH COMPANY LIMITED

Inventor： Shangmin SUN ,  Yu HU ,  Sheng YAO ,  Tao WANG ,  Xibin YIN

IPC: G01S13/38 ,  G01S7/40 ,  G01S13/34

Abstract: The present disclosure provides a smart automatic frequency control (AFC) apparatus, including: a phase shift module, connected to a first signal input terminal and configured to: receive an incident wave from the first signal input terminal, perform a phase shift on the incident wave according to a phase shift parameter so as to generate a phase-shifted signal, and output the phase-shifted signal to a phase detection module; and the phase detection module, connected to the phase shift module and a second signal input terminal and configured to: receive a reflected wave from the second signal input terminal, perform a phase detection on the phase-shifted signal and the reflected wave so as to generate a phase difference signal, and output the phase difference signal via a control interface.

公开(公告)号：US20170288891A1

公开(公告)日：2017-10-05

申请号：US15129978

申请日：2015-12-21

Applicant: Nuctech Company Limited

Inventor： Long TIAN ,  Tao WANG ,  Hongzhi NING

IPC: H04L12/28 ,  H04L29/08

CPC classification number: G06F11/2092 ,  G06F11/20 ,  G06F11/2094 ,  H04L41/00 ,  H04L41/0668 ,  H04L43/0817 ,  H04L67/1034 ,  H04L67/1097 ,  H04L69/40

Abstract: The present disclosure relates to an automatic switching method and an automatic switching system. The automatic switching method includes: an automatic switching device monitoring in real time a service state of an operation server; when the automatic switching device monitors that the operation server has terminated providing service for a client terminal, the automatic switching device sending to the operation server a switching instruction for switching a current configuration of the operation server and sending to a backup server a notification message for switching a current configuration of the backup server; and the backup server switching the current configuration of the backup server to a preset first configuration according to the notification message, and providing service for the client terminal; wherein the first configuration is the configuration of the operation server when the operation server provided service.