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Patent Searching and Data


Title:
SIGNAL TRANSMISSION AND RECEPTION METHOD
Document Type and Number:
WIPO Patent Application WO/2020/066207
Kind Code:
A1
Abstract:
Between a transmission unit 1 and a reception unit 2, signal transmission and reception is performed in two stages of a first step for conveying an approximate frequency by transmitting and receiving a notification signal and a second step for transmitting and receiving a reference signal which is a signal of a highly precise frequency. This makes it possible to smoothly switch to a plurality of frequency modes set in advance between transmission and reception, and to perform synchronous operation with a frequency after the switching.

Inventors:
FUKUSHIMA KEITA (JP)
FUKUMURA TOMOHIRO (JP)
LAN LINFENG (JP)
TAKAE KOICHI (JP)
Application Number:
JP2019/026770
Publication Date:
April 02, 2020
Filing Date:
July 05, 2019
Export Citation:
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Assignee:
NIDEC CORP (JP)
International Classes:
H04L7/04; A63F13/428; G01S17/88; H02P29/00; H04L7/00; H04L25/49
Foreign References:
JP2016082298A2016-05-16
EP2639704A12013-09-18
JPH03259638A1991-11-19
JPH0583328A1993-04-02
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