公开(公告)号：US20250014438A1

公开(公告)日：2025-01-09

申请号：US18708300

申请日：2021-12-02

Applicant: NEC Corporation

Inventor： Daisuke HASHIZUME ,  Yumi TANAKA ,  Takahiro OBA ,  Mitsuyuki KONDO ,  Hiroaki YOSHIDA ,  Iwao ISHIDA ,  Hiroyuki ISHII

IPC: G08B13/196 ,  G08B25/10

Abstract: To enable accurate detection of a moving body that has fraudulently entered a monitored area, a moving body management device comprises: a reception unit that receives moving body identification information enabling identification of a moving body and representing the state of the moving body from an information processing terminal device that has received the moving body identification information from the moving body that has transmitted the moving body identification information; a determination unit that determines whether or not the moving body has entered an entry-prohibited area by comparing the received moving body identification information with entry permission management information representing an area that the moving body is permitted to enter or prohibited from entering; and a transmission unit that transmits a determination result obtained by the determination unit to the information processing terminal device capable of displaying the determination result.

公开(公告)号：US20170026078A1

公开(公告)日：2017-01-26

申请号：US15124947

申请日：2015-01-13

Applicant: NEC Corporation ,  NEC Engineering, Ltd.

Inventor： Hiroyuki ISHII ,  Satoru NEGISHI

IPC: H04B3/04 ,  H04B1/10

CPC classification number: H04B3/04 ,  H04B1/10

Abstract: To separate an interference signal regardless of a power and an arrival direction of the interference signal. A delay adjustment unit acquires a plurality of interference signals comprising identical signal components and synchronizes the predetermined single signal component of each interference signal. A waveform shaping unit adjusts phases of the predetermined single signal components included in the plurality of interference signals the delays of which are adjusted by the delay adjustment unit. An addition unit adds the plurality of interference signals in which the phases of the predetermined single signal components are adjusted by the waveform shaping unit.

Abstract translation: 分离干扰信号，而不管干扰信号的功率和到达方向如何。 延迟调整单元获取包括相同信号分量的多个干扰信号，并且使每个干扰信号的预定单个信号分量同步。 波形整形单元调整由延迟调整单元调整延迟的多个干扰信号中包括的预定单个信号分量的相位。 加法单元将通过波形整形单元调整预定单个信号分量的相位的多个干扰信号相加。