公开(公告)号：US20240402321A1

公开(公告)日：2024-12-05

申请号：US18697757

申请日：2022-10-11

Applicant: NEC Corporation

Inventor： Yuki ASHINO ,  Masahiro KARUBE ,  Takashi HITANI

IPC: G01S11/08 ,  G01S5/02 ,  G01S5/12 ,  G01S5/14

Abstract: A distance measuring device provided with measuring means for acquiring a transmission timing at which a probe packet was transmitted to a probe target, and a reception timing at which a response packet to the probe packet was received from the probe target; response time calculating means for calculating a response time by using the transmission timing and the reception timing; medium storing means for storing a medium velocity, which is a signal transmission velocity in a transmission medium used for transmission between a distance measuring device and the probe target; and distance calculating means for calculating a distance to the probe target by using the response time and the medium velocity.

公开(公告)号：US20240113955A1

公开(公告)日：2024-04-04

申请号：US18372245

申请日：2023-09-25

Applicant: NEC Corporation

Inventor： Yuki ASHINO ,  Takashi HITANI ,  Miyu YAKUMARU

IPC: H04L43/0864 ,  H04L43/045 ,  H04L43/106

CPC classification number: H04L43/0864 ,  H04L43/045 ,  H04L43/106

Abstract: A measuring apparatus including: a transmission part transmitting a probe packet wherein a communication apparatus to be measured is arranged in a communication path destined for a destination-communication apparatus, a reception part receiving a response packet from destination-communication apparatus in response to the probe packet, a time-measuring part measuring time, an analyzing part analyzing the response packet, an output part outputting an analysis result, the analyzing part calculating analysis result based on measuring result of the time-measuring part.