Title:
DISTANCE MEASUREMENT APPARATUS AND METHOD FOR SETTING TRANSMISSION CONDITION
Document Type and Number:
WIPO Patent Application WO/2023/105918
Kind Code:
A1
Abstract:
Provided are a distance measurement apparatus in which confidentiality of transmission is enhanced, and a method for setting a transmission condition. This distance measurement apparatus includes: a phase acquisition unit for acquiring a first phase from when a signal having a first frequency transmitted by a transmission unit to another device is received by the other device, and a second phase from when a signal having a second frequency transmitted by the transmission unit to the other device is received by the other device; a phase measurement unit for measuring a third phase from when the signal having the first frequency is received from the other device, and a fourth phase from when the signal having the second frequency is received from the other device; a distance measurement unit for measuring a distance on the basis of the first phase and second phase, the first frequency, the third phase and fourth phase, and the second frequency; and a setting unit for randomly setting the transmission order of transmission of the signal having the first frequency by the other device, transmission of the signal having the first frequency by the transmission unit, transmission of the signal having the second frequency by the other device, and transmission of the signal having the second frequency by the transmission unit, and the first frequency and the second frequency.
Inventors:
YAMADA YUKIMITSU (JP)
Application Number:
PCT/JP2022/038191
Publication Date:
June 15, 2023
Filing Date:
October 13, 2022
Export Citation:
Assignee:
ALPS ALPINE CO LTD (JP)
International Classes:
G01S13/84; G01S11/02; H04B17/27
Foreign References:
| JP2019128341A | 2019-08-01 | |||
| JP2020509261A | 2020-03-26 | |||
| US20190187262A1 | 2019-06-20 | |||
| US20160003932A1 | 2016-01-07 | |||
| US20030195723A1 | 2003-10-16 |
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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