The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 13, 2018
Filed:
May. 27, 2015
Nec Corporation, Minato-ku, Tokyo, JP;
Hideto Shibohta, Tokyo, JP;
Shigeru Asai, Tokyo, JP;
Kenji Wakafuji, Tokyo, JP;
Masakazu Ono, Tokyo, JP;
Shingo Watanabe, Tokyo, JP;
Masato Kudou, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A radio wave jamming system () comprises a plurality of radio transmitters () that are adapted to transmit respective jamming signals () including substantially the same frequency. The plurality of radio transmitters () are further adapted to temporally change at least one of the transmission phases of the jamming signals (), which are to be transmitted from the plurality of radio transmitters (), so as to temporally change the phase differences among the jamming signals () when the jamming signals () transmitted from the plurality of radio transmitters () arrive at a particular site (). Thus, for example, a radio wave jamming system that can be constituted by small-output radio devices can be provided.