SENSOR SYSTEM, RECEIVING DEVICE, PROGRAM, AND SIGNAL SOURCE

WIPO Patent Application WO/2020/136992

A1

This signal source provides, to a first transmission device and a second transmission device, a reference signal to which a plurality of Pseudo Noise (PN) sequence signals of different stage numbers are added. Each of the first and second transmission devices receives an input of the reference signal from the signal source, receives an input of a sensor signal from a sensor, and transmits, to a receiving device, data converted in a state in which a time relationship is maintained between the reference signal and the sensor signal. For each piece of data received from each of the transmission devices, the receiving device acquires, on the basis of the reference signal, a delay time of the sensor signal included in the data from a time difference (a and b) between a target peak (P3) and reference peaks (P1 and P2) included in different cross-correlations in a plurality of cross-correlations (331-333) between each of the plurality of PN sequence signals and the reference signal included in the data, and outputs information according to the delay time.

YOSHITOMI KEIICHI (JP)
ORIE AKIHIRO (JP)
ISHIBASHI TAKASHI (JP)
IWATA RYOSUKE (JP)

PCT/JP2019/033223

July 02, 2020

August 26, 2019

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APTPOD INC (JP)

H04L7/04; H04B1/7075; H04B14/04

JPH04185127A	1992-07-02
JPS6248824A	1987-03-03
JP2003264480A	2003-09-19
JP2003188769A	2003-07-04
JPH11112384A	1999-04-23
JPH08340275A	1996-12-24

HABUCHI, HIROMASA: "Pseudo-Noise Sequences Based on M-sequence and Its Application for Communications", FUNDAMENTALS REVIEW, vol. 3, no. 1, 1 July 2009 (2009-07-01), pages 32 - 42, XP055721876

ASAHI PATENT FIRM (JP)

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