公开(公告)号：US20240176439A1

公开(公告)日：2024-05-30

申请号：US18517546

申请日：2023-11-22

Applicant: NEC Corporation

Inventor： Ryota NIHEI ,  Junichi FUNADA ,  Kenji WAKAFUJI ,  Kazuyuki HAYASHI ,  Kohei YOSHIDA ,  Shingo WATANABE ,  Kazushi SUGYO ,  Masakazu ONO ,  Fujio OKUMURA

IPC: G06F3/041 ,  G06F3/042 ,  G06F3/044 ,  G06F3/04842 ,  H01Q1/22 ,  H01Q3/36

CPC classification number: G06F3/0412 ,  G06F3/0421 ,  G06F3/0446 ,  G06F3/04842 ,  H01Q1/22 ,  H01Q3/36

Abstract: Provided is a display antenna including a display including a plurality of light emitters arranged in a grid, an antenna array having an antenna assembly in which a plurality of patch antennas through which light in a wavelength band of a visible region is transmitted is disposed in a grid, the antenna array being disposed to be superimposed on the display, and a phase shifter disposed in a gap region sandwiched between the plurality of light emitters, connected to at least one of the plurality of patch antennas, and configured to shift a signal to be transmitted and received.

公开(公告)号：US20170163372A1

公开(公告)日：2017-06-08

申请号：US15327077

申请日：2015-05-27

Applicant: NEC Corporation

Inventor： Hideto SHIBOHTA ,  Shigeru ASAI ,  Kenji WAKAFUJI ,  Masakazu ONO ,  Shingo WATANABE ,  Masato KUDOU

IPC: H04K3/00

CPC classification number: H04K3/44 ,  H04K3/00 ,  H04K3/41 ,  H04K3/42 ,  H04K2203/34

Abstract: A radio wave jamming system (1) comprises a plurality of radio transmitters (10) that are adapted to transmit respective jamming signals (11) including substantially the same frequency. The plurality of radio transmitters (10) are further adapted to temporally change at least one of the transmission phases of the jamming signals (11), which are to be transmitted from the plurality of radio transmitters (10), so as to temporally change the phase differences among the jamming signals (11) when the jamming signals (11) transmitted from the plurality of radio transmitters (10) arrive at a particular site (50). Thus, for example, a radio wave jamming system that can be constituted by small-output radio devices can be provided.